WO2005050896A3 - Method and system for antenna interference cancellation - Google Patents

Method and system for antenna interference cancellation Download PDF

Info

Publication number
WO2005050896A3
WO2005050896A3 PCT/US2004/038564 US2004038564W WO2005050896A3 WO 2005050896 A3 WO2005050896 A3 WO 2005050896A3 US 2004038564 W US2004038564 W US 2004038564W WO 2005050896 A3 WO2005050896 A3 WO 2005050896A3
Authority
WO
WIPO (PCT)
Prior art keywords
interference
antenna
interference cancellation
antenna interference
estimate
Prior art date
Application number
PCT/US2004/038564
Other languages
French (fr)
Other versions
WO2005050896A2 (en
Inventor
Edward Gebara
Joy Laskar
Emmanouil M Tentzeris
Andrew Joo Kim
Original Assignee
Quellan Inc
Edward Gebara
Joy Laskar
Emmanouil M Tentzeris
Andrew Joo Kim
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Quellan Inc, Edward Gebara, Joy Laskar, Emmanouil M Tentzeris, Andrew Joo Kim filed Critical Quellan Inc
Priority to EP04811319A priority Critical patent/EP1687929B1/en
Priority to AT04811319T priority patent/ATE488068T1/en
Priority to KR1020067012072A priority patent/KR101197810B1/en
Priority to DE602004030032T priority patent/DE602004030032D1/en
Priority to JP2006540023A priority patent/JP4510832B2/en
Publication of WO2005050896A2 publication Critical patent/WO2005050896A2/en
Publication of WO2005050896A3 publication Critical patent/WO2005050896A3/en
Priority to HK07101502.2A priority patent/HK1096500A1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
    • H01Q1/525—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between emitting and receiving antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • H04B1/1036—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal with automatic suppression of narrow band noise or interference, e.g. by using tuneable notch filters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/12—Neutralising, balancing, or compensation arrangements
    • H04B1/123—Neutralising, balancing, or compensation arrangements using adaptive balancing or compensation means
    • H04B1/126—Neutralising, balancing, or compensation arrangements using adaptive balancing or compensation means having multiple inputs, e.g. auxiliary antenna for receiving interfering signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/50—Circuits using different frequencies for the two directions of communication
    • H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H04B1/525—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa with means for reducing leakage of transmitter signal into the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15564—Relay station antennae loop interference reduction
    • H04B7/15585—Relay station antennae loop interference reduction by interference cancellation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/24—Testing correct operation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/20—Testing circuits or apparatus; Circuits or apparatus for detecting, indicating, or signalling faults or troubles
    • H04Q1/22—Automatic arrangements
    • H04Q1/24—Automatic arrangements for connection devices

Abstract

A cancellation device (750a) can suppress antenna interference by generating an estimate of the interference signal and subtracting the estimate from the interference signal (870). The cancellation device (750a) can generate the estimate based on sampling signals on an antenna that generates the interference or on an antenna that receives the interference (9220,810,225). The cancellation device (750a) can comprise a model of the crosstalk effect.
PCT/US2004/038564 2003-11-17 2004-11-17 Method and system for antenna interference cancellation WO2005050896A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP04811319A EP1687929B1 (en) 2003-11-17 2004-11-17 Method and system for antenna interference cancellation
AT04811319T ATE488068T1 (en) 2003-11-17 2004-11-17 METHOD AND SYSTEM FOR CANCELING ANTENNA INTERFERENCE
KR1020067012072A KR101197810B1 (en) 2003-11-17 2004-11-17 Method and system for antenna interference cancellation
DE602004030032T DE602004030032D1 (en) 2003-11-17 2004-11-17 METHOD AND SYSTEM FOR ERASING ANTENNA INTERFERENCE
JP2006540023A JP4510832B2 (en) 2003-11-17 2004-11-17 Method and system for antenna interference cancellation
HK07101502.2A HK1096500A1 (en) 2003-11-17 2007-02-08 Method and system for antenna interference cancellation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US52059203P 2003-11-17 2003-11-17
US60/520,592 2003-11-17

Publications (2)

Publication Number Publication Date
WO2005050896A2 WO2005050896A2 (en) 2005-06-02
WO2005050896A3 true WO2005050896A3 (en) 2006-03-09

Family

ID=34619488

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/038564 WO2005050896A2 (en) 2003-11-17 2004-11-17 Method and system for antenna interference cancellation

Country Status (8)

Country Link
US (3) US7123676B2 (en)
EP (1) EP1687929B1 (en)
JP (1) JP4510832B2 (en)
KR (1) KR101197810B1 (en)
AT (1) ATE488068T1 (en)
DE (1) DE602004030032D1 (en)
HK (1) HK1096500A1 (en)
WO (1) WO2005050896A2 (en)

Families Citing this family (320)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1126276C (en) * 1999-03-03 2003-10-29 西门子公司 Frequency multiplex transmitter and method for emliminating crosstalk
US8498234B2 (en) 2002-06-21 2013-07-30 Qualcomm Incorporated Wireless local area network repeater
AU2003256569A1 (en) 2002-07-15 2004-02-02 Quellan, Inc. Adaptive noise filtering and equalization
US8885688B2 (en) 2002-10-01 2014-11-11 Qualcomm Incorporated Control message management in physical layer repeater
AU2003274992A1 (en) 2002-10-11 2004-05-04 Widefi, Inc. Reducing loop effects in a wireless local area network repeater
ATE402527T1 (en) 2002-10-15 2008-08-15 Qualcomm Inc WLAN REPEATER WITH AUTOMATIC GAIN CONTROL FOR EXTENDED NETWORK COVERAGE
US8078100B2 (en) 2002-10-15 2011-12-13 Qualcomm Incorporated Physical layer repeater with discrete time filter for all-digital detection and delay generation
US7230935B2 (en) 2002-10-24 2007-06-12 Widefi, Inc. Physical layer repeater with selective use of higher layer functions based on network operating conditions
US7934144B2 (en) 2002-11-12 2011-04-26 Quellan, Inc. High-speed analog-to-digital conversion with improved robustness to timing uncertainty
JP2006506897A (en) 2002-11-15 2006-02-23 ワイデファイ インコーポレイテッド Wireless local area network detection repeater
AU2003300938A1 (en) 2002-12-16 2004-07-29 Widefi, Inc. Improved wireless network repeater
US7436010B2 (en) * 2003-02-13 2008-10-14 Matsushita Electric Industrial Co., Ltd. Solid state imaging apparatus, method for driving the same and camera using the same
US7804760B2 (en) 2003-08-07 2010-09-28 Quellan, Inc. Method and system for signal emulation
US8315583B2 (en) * 2006-08-23 2012-11-20 Quellan, Inc. Pre-configuration and control of radio frequency noise cancellation
GB2421674B (en) 2003-08-07 2006-11-15 Quellan Inc Method and system for crosstalk cancellation
US7123676B2 (en) 2003-11-17 2006-10-17 Quellan, Inc. Method and system for antenna interference cancellation
US7616700B2 (en) 2003-12-22 2009-11-10 Quellan, Inc. Method and system for slicing a communication signal
US8027642B2 (en) * 2004-04-06 2011-09-27 Qualcomm Incorporated Transmission canceller for wireless local area network
EP1745567B1 (en) 2004-05-13 2017-06-14 QUALCOMM Incorporated Non-frequency translating repeater with detection and media access control
KR20070026558A (en) 2004-06-03 2007-03-08 위데피, 인코포레이티드 Frequency translating repeater with low cost high performance local oscillator architecture
US7522883B2 (en) 2004-12-14 2009-04-21 Quellan, Inc. Method and system for reducing signal interference
US7725079B2 (en) 2004-12-14 2010-05-25 Quellan, Inc. Method and system for automatic control in an interference cancellation device
US8059727B2 (en) 2005-01-28 2011-11-15 Qualcomm Incorporated Physical layer repeater configuration for increasing MIMO performance
US9554319B2 (en) * 2005-09-27 2017-01-24 Qualcomm Incorporated Channel handoff methods in wireless broadcast systems
US7706288B2 (en) * 2005-09-27 2010-04-27 Qualcomm Incorporated RF channel switching in broadcast OFDM systems
US20080020751A1 (en) * 2005-09-27 2008-01-24 Qualcomm Incorporated Channel monitoring methods in a wireless broadcast system
KR100653199B1 (en) * 2005-11-18 2006-12-05 삼성전자주식회사 Rf receiving apparatus and method for removing leakage component of received signal using local signal
US7505949B2 (en) * 2006-01-31 2009-03-17 Caterpillar Inc. Process model error correction method and system
US20080261519A1 (en) * 2006-03-16 2008-10-23 Cellynx, Inc. Dual cancellation loop wireless repeater
US8005513B2 (en) * 2006-03-16 2011-08-23 Cellynx, Inc. Cell phone signal booster
US7683829B2 (en) * 2006-04-24 2010-03-23 Atheros Communications, Inc. Method and apparatus for adapting a receiver frequency plan according to location
DE112007001045B4 (en) 2006-04-26 2019-05-16 Intersil Americas LLC Method and system for reducing radiation emissions from a communication channel
KR100744913B1 (en) * 2006-05-16 2007-08-01 삼성전기주식회사 Mobile terminal and mothed for removing interfering phase-noise in the mobile terminal
WO2008030165A1 (en) * 2006-09-05 2008-03-13 Buon Kiong Lau Antenna system and method for operating an antenna system
US8559379B2 (en) 2006-09-21 2013-10-15 Qualcomm Incorporated Method and apparatus for mitigating oscillation between repeaters
WO2008057290A1 (en) 2006-10-26 2008-05-15 Qualcomm Incorporated Repeater techniques for multiple input multiple output utilizing beam formers
US8023438B2 (en) 2006-11-06 2011-09-20 Nokia Corporation Analog signal path modeling for self-interference cancellation
JP4984869B2 (en) 2006-12-13 2012-07-25 セイコーエプソン株式会社 Reception circuit, electronic device, and noise canceling method
US20080219389A1 (en) * 2007-03-06 2008-09-11 Sige Semiconductor Inc. Feed-forward cancellation in wireless receivers
US20080219377A1 (en) * 2007-03-06 2008-09-11 Sige Semiconductor Inc. Transmitter crosstalk cancellation in multi-standard wireless transceivers
US8159390B2 (en) * 2007-03-29 2012-04-17 Raytheon Company Temporal CW nuller
KR100856283B1 (en) 2007-04-03 2008-09-03 삼성전기주식회사 Apparatus and mothed for removing interfering noise in personal communication terminal
US8000674B2 (en) * 2007-07-31 2011-08-16 Intel Corporation Canceling self-jammer and interfering signals in an RFID system
US20090080669A1 (en) * 2007-09-26 2009-03-26 Seiko Epson Corporation Noise cancel method, noise cancel type amplifying circuit, and receiving circuit and electronic device including noise cancel type amplifying circuit
US8676124B2 (en) * 2007-09-28 2014-03-18 Qualcomm Incorporated Scheduling based on effective target load with interference cancellation in a wireless communication system
US8175535B2 (en) * 2008-02-27 2012-05-08 Telefonaktiebolaget Lm Ericsson (Publ) Active cancellation of transmitter leakage in a wireless transceiver
JP5029439B2 (en) * 2008-03-14 2012-09-19 富士通株式会社 Wireless communication apparatus and interference cancellation method
JP4957804B2 (en) * 2008-04-16 2012-06-20 パナソニック株式会社 ANTENNA COUPLING CORRELATION REMOVAL METHOD AND RADIO DEVICE HAVING AN ANTENNA COMBINATION CORRELATION REMOVAL
US20100075595A1 (en) * 2008-04-17 2010-03-25 Cellynx, Inc. Dual Loop Active and Passive Repeater Antenna Isolation Improvement
EP2112772B1 (en) * 2008-04-24 2016-08-31 Alcatel Lucent Method for reducing interference in a radio network equipment and equipment performing the method
US8284721B2 (en) 2008-06-26 2012-10-09 Apple Inc. Methods and apparatus for antenna isolation-dependent coexistence in wireless systems
US8249540B1 (en) * 2008-08-07 2012-08-21 Hypres, Inc. Two stage radio frequency interference cancellation system and method
WO2010022258A2 (en) * 2008-08-21 2010-02-25 Intersil Americas Inc. Noise cancellation for antenna module
KR100992352B1 (en) * 2008-09-24 2010-11-04 삼성전기주식회사 Coupling channel noise cancelling circuit
US20100074315A1 (en) * 2008-09-24 2010-03-25 Quellan, Inc. Noise sampling detectors
US8923125B2 (en) * 2008-10-24 2014-12-30 Qualcomm Incorporated Wireless network resource adaptation
US20100105340A1 (en) * 2008-10-29 2010-04-29 Qualcomm Incorporated Interface for wireless communication devices
US8693810B2 (en) 2008-11-05 2014-04-08 The Trustees Of Princeton University Optical counter-phase system and method of RF interference cancellation
US8682170B2 (en) * 2011-05-20 2014-03-25 The Trustees Of Princeton University System and method for broadband RF interference cancellation
US9172134B2 (en) 2008-11-06 2015-10-27 Antenna79, Inc. Protective cover for a wireless device
CN201663225U (en) * 2008-11-06 2010-12-01 黄耀辉 Antenna embedded into battery, wireless device and intelligent outer shell of wireless device
US8214003B2 (en) 2009-03-13 2012-07-03 Pong Research Corporation RF radiation redirection away from portable communication device user
US8331894B2 (en) * 2009-01-13 2012-12-11 Mediatek Inc. Method for performing active jammer suppression on electronic device, and associated apparatus
US8036606B2 (en) * 2009-02-03 2011-10-11 Ubidyne, Inc. Method and apparatus for interference cancellation
US8204443B2 (en) * 2009-02-04 2012-06-19 Qualcomm Incorporated Adjustable receive filter responsive to internal radio status
US20100197257A1 (en) * 2009-02-04 2010-08-05 Qualcomm Incorporated Adjustable receive filter responsive to frequency spectrum information
US8204444B2 (en) * 2009-02-04 2012-06-19 Qualcomm Incorporated Adjustable transmission filter responsive to internal sadio status
FR2942676A1 (en) * 2009-02-27 2010-09-03 Thomson Licensing COMPACT ANTENNA SYSTEM WITH DIVERSITY OF ORDER 2.
US8786287B2 (en) * 2009-03-04 2014-07-22 Baker Hughes Incorporated Collocated tri-axial induction sensors with segmented horizontal coils
US8031744B2 (en) 2009-03-16 2011-10-04 Microsoft Corporation Full-duplex wireless communications
US8166084B2 (en) 2009-03-27 2012-04-24 Intersil Americas Inc. Calibration of adjustable filters
US8380771B2 (en) * 2009-03-27 2013-02-19 Quellan, Inc. Filter shaping using a signal cancellation function
US8422412B2 (en) * 2009-04-29 2013-04-16 Quellan, Inc. Duplexer and switch enhancement
US8755756B1 (en) * 2009-04-29 2014-06-17 Qualcomm Incorporated Active cancellation of interference in a wireless communication system
US8401598B2 (en) * 2009-05-11 2013-03-19 Broadcom Corporation Method and system for chip to chip communication utilizing selectable directional antennas
US8429439B2 (en) * 2009-05-20 2013-04-23 Quellan, Inc. Inter-pair skew adjustment
US8183711B2 (en) * 2009-06-02 2012-05-22 Quellan, Inc. Power extraction from signal sinks
US8427337B2 (en) * 2009-07-10 2013-04-23 Aclara RF Systems Inc. Planar dipole antenna
US8340578B2 (en) 2009-10-05 2012-12-25 Apple Inc. Methods and apparatus for enhanced coexistence algorithms in wireless systems
US8693569B2 (en) 2009-10-19 2014-04-08 Apple Inc. Methods and apparatus for dynamic wireless device coexistence
JP5325752B2 (en) * 2009-12-07 2013-10-23 株式会社日立製作所 Module for mobile communication terminal and mobile communication terminal using the same
CN106160674A (en) 2009-12-21 2016-11-23 大力系统有限公司 For improving the system of the isolation between transmitter and receiver
WO2011077246A2 (en) * 2009-12-21 2011-06-30 Dali Systems Co. Ltd Multi-band wideband power amplifier digital predistortion system
WO2011082484A1 (en) * 2010-01-06 2011-07-14 Ems Technologies Canada, Ltd. Active interference cancellation system and method
US8565681B2 (en) * 2010-01-08 2013-10-22 Samsung Electro-Mechanics Systems, methods, and apparatuses for reducing interference at the front-end of a communications receiving device
JP4998571B2 (en) * 2010-03-03 2012-08-15 パナソニック株式会社 Antenna device and portable wireless terminal equipped with the same
JP5112530B2 (en) * 2010-04-02 2013-01-09 原田工業株式会社 Folded monopole antenna
US9406998B2 (en) * 2010-04-21 2016-08-02 Pulse Finland Oy Distributed multiband antenna and methods
US8614644B2 (en) 2010-04-22 2013-12-24 The Aerospace Corporation Systems and methods for protecting a receiving antenna from interference by a transmitting antenna
CN103004021B (en) * 2010-05-24 2015-04-15 诺基亚公司 Apparatus, methods, computer programs and computer readable storage mediums for wireless communication
US9219596B2 (en) * 2010-06-03 2015-12-22 Broadcom Corporation Front end module with active tuning of a balancing network
US8412095B2 (en) 2010-07-15 2013-04-02 John Mezzalingua Associates, Inc. Apparatus for minimizing amplifier oscillation in an antenna system
US9166664B2 (en) * 2010-12-20 2015-10-20 Kathrein-Werke Kg Active antenna system and method for combining signals
US8599709B2 (en) 2011-02-10 2013-12-03 Apple Inc. Methods and apparatus for wireless coexistence based on transceiver chain emphasis
WO2012125176A1 (en) * 2011-03-15 2012-09-20 Research In Motion Limited Method and apparatus to control mutual coupling and correlation for multi-antenna applications
US8903346B2 (en) 2011-03-28 2014-12-02 Adc Telecommunications, Inc. External mounted amplifiers with active interference cancelation using diversity antennas
US8843081B2 (en) 2011-05-16 2014-09-23 Qualcomm Incorporated Receiver with transmit signal cancellation
WO2013009664A1 (en) * 2011-07-08 2013-01-17 Google Inc. Control of sar in mobile transmit diversity systems employing beam forming by using coupling between diversity branches
US8422540B1 (en) 2012-06-21 2013-04-16 CBF Networks, Inc. Intelligent backhaul radio with zero division duplexing
US8615204B2 (en) * 2011-08-26 2013-12-24 Qualcomm Incorporated Adaptive interference cancellation for transmitter distortion calibration in multi-antenna transmitters
US9083441B2 (en) 2011-10-26 2015-07-14 Qualcomm Incorporated Impedance balancing for transmitter to receiver rejection
US9838060B2 (en) 2011-11-02 2017-12-05 Antenna79, Inc. Protective cover for a wireless device
US8995929B2 (en) 2011-12-06 2015-03-31 Apple Inc. Methods and apparatus for wireless optimization based on platform configuration and use cases
MX339940B (en) 2012-03-21 2016-06-17 Powercast Corp Wireless sensor system, method and apparatus with switch and outlet control.
US20130259099A1 (en) 2012-03-30 2013-10-03 Qualcomm Incorporated Tunable notch filter using feedback through an existing feedback receiver
US8971219B2 (en) 2012-03-30 2015-03-03 Qualcomm Incorporated Hybrid transformer based integrated duplexer for multi-band/multi-mode radio frequency (RF) front end
JP2013243487A (en) * 2012-05-18 2013-12-05 Denso Corp On-vehicle antenna
US8995553B2 (en) 2012-06-08 2015-03-31 Apple Inc. Methods and apparatus for mitigating interference in aggressive form factor designs
CN102811069B (en) * 2012-07-25 2014-10-08 华为技术有限公司 Transceiver and interference cancellation method
US8781429B2 (en) * 2012-10-09 2014-07-15 Exelis Inc. Ordered electromagnetic interference cancellation
DE102012220493A1 (en) * 2012-11-09 2014-05-15 Robert Bosch Gmbh Subscriber station for connection to a bus line and method for compensation of a fault due to a CAN bus system in a received signal
US9113347B2 (en) 2012-12-05 2015-08-18 At&T Intellectual Property I, Lp Backhaul link for distributed antenna system
US10009065B2 (en) 2012-12-05 2018-06-26 At&T Intellectual Property I, L.P. Backhaul link for distributed antenna system
KR101535570B1 (en) * 2013-01-31 2015-07-10 연세대학교 산학협력단 Apparatus for calibration of phase and amplitude of antenna, and array antenna
US9577683B2 (en) 2013-04-22 2017-02-21 University Of Washington Through Its Center For Commercialization Systems, transceivers, receivers, and methods including cancellation circuits having multiport transformers
US9999038B2 (en) 2013-05-31 2018-06-12 At&T Intellectual Property I, L.P. Remote distributed antenna system
US9525524B2 (en) 2013-05-31 2016-12-20 At&T Intellectual Property I, L.P. Remote distributed antenna system
JP6508052B2 (en) * 2013-09-26 2019-05-08 日本電気株式会社 Signal transmission apparatus, distortion compensation apparatus, and signal transmission method
US10455663B2 (en) 2013-10-23 2019-10-22 Powercast Corporation Automated system for lighting control
US8897697B1 (en) 2013-11-06 2014-11-25 At&T Intellectual Property I, Lp Millimeter-wave surface-wave communications
KR102252635B1 (en) 2013-11-17 2021-05-18 핑 리앙 Apparatus for massive mimo multi-user beamforming and single channel full duplex for wireless networks and method thereof
US9209902B2 (en) 2013-12-10 2015-12-08 At&T Intellectual Property I, L.P. Quasi-optical coupler
CN105814858B (en) 2013-12-20 2018-05-25 射频数字信号处理公司 Adaptive pre-encoding in multiple input, multiple output wireless communication system
CN106961739B (en) 2013-12-20 2020-07-24 射频数字信号处理公司 Method for acquiring channel state information in frequency division duplex multi-input and multi-output wireless network
JP6339702B2 (en) 2014-06-26 2018-06-06 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． Interference cancellation apparatus and method
MX360550B (en) * 2014-06-26 2018-10-26 Huawei Tech Co Ltd Interference cancellation device and method.
CN106464616B (en) 2014-06-26 2019-10-22 华为技术有限公司 A kind of device and method that interference is eliminated
US9692101B2 (en) 2014-08-26 2017-06-27 At&T Intellectual Property I, L.P. Guided wave couplers for coupling electromagnetic waves between a waveguide surface and a surface of a wire
US9768833B2 (en) 2014-09-15 2017-09-19 At&T Intellectual Property I, L.P. Method and apparatus for sensing a condition in a transmission medium of electromagnetic waves
US9712233B1 (en) 2014-09-16 2017-07-18 Bascom Hunter Technologies, Inc. Full-duplex RF link for multi-channel wideband communication
US10063280B2 (en) 2014-09-17 2018-08-28 At&T Intellectual Property I, L.P. Monitoring and mitigating conditions in a communication network
US9628854B2 (en) 2014-09-29 2017-04-18 At&T Intellectual Property I, L.P. Method and apparatus for distributing content in a communication network
US9615269B2 (en) 2014-10-02 2017-04-04 At&T Intellectual Property I, L.P. Method and apparatus that provides fault tolerance in a communication network
US9685992B2 (en) 2014-10-03 2017-06-20 At&T Intellectual Property I, L.P. Circuit panel network and methods thereof
US9503189B2 (en) 2014-10-10 2016-11-22 At&T Intellectual Property I, L.P. Method and apparatus for arranging communication sessions in a communication system
US9973299B2 (en) 2014-10-14 2018-05-15 At&T Intellectual Property I, L.P. Method and apparatus for adjusting a mode of communication in a communication network
US9762289B2 (en) 2014-10-14 2017-09-12 At&T Intellectual Property I, L.P. Method and apparatus for transmitting or receiving signals in a transportation system
US9627768B2 (en) 2014-10-21 2017-04-18 At&T Intellectual Property I, L.P. Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith
US9780834B2 (en) 2014-10-21 2017-10-03 At&T Intellectual Property I, L.P. Method and apparatus for transmitting electromagnetic waves
US9577306B2 (en) 2014-10-21 2017-02-21 At&T Intellectual Property I, L.P. Guided-wave transmission device and methods for use therewith
US9312919B1 (en) 2014-10-21 2016-04-12 At&T Intellectual Property I, Lp Transmission device with impairment compensation and methods for use therewith
US9769020B2 (en) 2014-10-21 2017-09-19 At&T Intellectual Property I, L.P. Method and apparatus for responding to events affecting communications in a communication network
US9520945B2 (en) 2014-10-21 2016-12-13 At&T Intellectual Property I, L.P. Apparatus for providing communication services and methods thereof
US9564947B2 (en) 2014-10-21 2017-02-07 At&T Intellectual Property I, L.P. Guided-wave transmission device with diversity and methods for use therewith
US9653770B2 (en) 2014-10-21 2017-05-16 At&T Intellectual Property I, L.P. Guided wave coupler, coupling module and methods for use therewith
US9654173B2 (en) 2014-11-20 2017-05-16 At&T Intellectual Property I, L.P. Apparatus for powering a communication device and methods thereof
US9954287B2 (en) 2014-11-20 2018-04-24 At&T Intellectual Property I, L.P. Apparatus for converting wireless signals and electromagnetic waves and methods thereof
US10243784B2 (en) 2014-11-20 2019-03-26 At&T Intellectual Property I, L.P. System for generating topology information and methods thereof
US9800327B2 (en) 2014-11-20 2017-10-24 At&T Intellectual Property I, L.P. Apparatus for controlling operations of a communication device and methods thereof
US9680670B2 (en) 2014-11-20 2017-06-13 At&T Intellectual Property I, L.P. Transmission device with channel equalization and control and methods for use therewith
US9742462B2 (en) 2014-12-04 2017-08-22 At&T Intellectual Property I, L.P. Transmission medium and communication interfaces and methods for use therewith
US10340573B2 (en) 2016-10-26 2019-07-02 At&T Intellectual Property I, L.P. Launcher with cylindrical coupling device and methods for use therewith
US9544006B2 (en) 2014-11-20 2017-01-10 At&T Intellectual Property I, L.P. Transmission device with mode division multiplexing and methods for use therewith
US9438286B2 (en) * 2014-11-20 2016-09-06 Intel Corporation Accurate desensitization estimation of a receiver
US9461706B1 (en) 2015-07-31 2016-10-04 At&T Intellectual Property I, Lp Method and apparatus for exchanging communication signals
US10009067B2 (en) 2014-12-04 2018-06-26 At&T Intellectual Property I, L.P. Method and apparatus for configuring a communication interface
US9997819B2 (en) 2015-06-09 2018-06-12 At&T Intellectual Property I, L.P. Transmission medium and method for facilitating propagation of electromagnetic waves via a core
US9917628B2 (en) * 2015-01-16 2018-03-13 RF DSP Inc. Beamforming in a MU-MIMO wireless communication system with relays
WO2016115547A1 (en) * 2015-01-16 2016-07-21 Ping Liang Symmetric and full duplex relay in wireless systems
US10144036B2 (en) 2015-01-30 2018-12-04 At&T Intellectual Property I, L.P. Method and apparatus for mitigating interference affecting a propagation of electromagnetic waves guided by a transmission medium
US9876570B2 (en) 2015-02-20 2018-01-23 At&T Intellectual Property I, Lp Guided-wave transmission device with non-fundamental mode propagation and methods for use therewith
US9749013B2 (en) 2015-03-17 2017-08-29 At&T Intellectual Property I, L.P. Method and apparatus for reducing attenuation of electromagnetic waves guided by a transmission medium
US9728848B1 (en) * 2015-03-24 2017-08-08 Amazon Technologies, Inc. Adaptive neutralization line to counter environmental effects for ultra-high isolation
US9705561B2 (en) 2015-04-24 2017-07-11 At&T Intellectual Property I, L.P. Directional coupling device and methods for use therewith
US10224981B2 (en) 2015-04-24 2019-03-05 At&T Intellectual Property I, Lp Passive electrical coupling device and methods for use therewith
US9793954B2 (en) 2015-04-28 2017-10-17 At&T Intellectual Property I, L.P. Magnetic coupling device and methods for use therewith
US9948354B2 (en) 2015-04-28 2018-04-17 At&T Intellectual Property I, L.P. Magnetic coupling device with reflective plate and methods for use therewith
CN107735920B (en) 2015-05-04 2021-08-03 鲍尔卡斯特公司 Automation system for lighting control
US9748626B2 (en) 2015-05-14 2017-08-29 At&T Intellectual Property I, L.P. Plurality of cables having different cross-sectional shapes which are bundled together to form a transmission medium
US9490869B1 (en) 2015-05-14 2016-11-08 At&T Intellectual Property I, L.P. Transmission medium having multiple cores and methods for use therewith
US9871282B2 (en) 2015-05-14 2018-01-16 At&T Intellectual Property I, L.P. At least one transmission medium having a dielectric surface that is covered at least in part by a second dielectric
US10679767B2 (en) 2015-05-15 2020-06-09 At&T Intellectual Property I, L.P. Transmission medium having a conductive material and methods for use therewith
US10650940B2 (en) 2015-05-15 2020-05-12 At&T Intellectual Property I, L.P. Transmission medium having a conductive material and methods for use therewith
US9917341B2 (en) 2015-05-27 2018-03-13 At&T Intellectual Property I, L.P. Apparatus and method for launching electromagnetic waves and for modifying radial dimensions of the propagating electromagnetic waves
CN106716851B (en) * 2015-05-30 2020-02-14 华为技术有限公司 Interference signal cancellation device and method
US10154493B2 (en) 2015-06-03 2018-12-11 At&T Intellectual Property I, L.P. Network termination and methods for use therewith
US10812174B2 (en) 2015-06-03 2020-10-20 At&T Intellectual Property I, L.P. Client node device and methods for use therewith
US9866309B2 (en) 2015-06-03 2018-01-09 At&T Intellectual Property I, Lp Host node device and methods for use therewith
US9912381B2 (en) 2015-06-03 2018-03-06 At&T Intellectual Property I, Lp Network termination and methods for use therewith
US10103801B2 (en) 2015-06-03 2018-10-16 At&T Intellectual Property I, L.P. Host node device and methods for use therewith
US10348391B2 (en) 2015-06-03 2019-07-09 At&T Intellectual Property I, L.P. Client node device with frequency conversion and methods for use therewith
US9913139B2 (en) 2015-06-09 2018-03-06 At&T Intellectual Property I, L.P. Signal fingerprinting for authentication of communicating devices
US10142086B2 (en) 2015-06-11 2018-11-27 At&T Intellectual Property I, L.P. Repeater and methods for use therewith
US9608692B2 (en) 2015-06-11 2017-03-28 At&T Intellectual Property I, L.P. Repeater and methods for use therewith
US9820146B2 (en) 2015-06-12 2017-11-14 At&T Intellectual Property I, L.P. Method and apparatus for authentication and identity management of communicating devices
US9667317B2 (en) 2015-06-15 2017-05-30 At&T Intellectual Property I, L.P. Method and apparatus for providing security using network traffic adjustments
US9640850B2 (en) 2015-06-25 2017-05-02 At&T Intellectual Property I, L.P. Methods and apparatus for inducing a non-fundamental wave mode on a transmission medium
US9509415B1 (en) 2015-06-25 2016-11-29 At&T Intellectual Property I, L.P. Methods and apparatus for inducing a fundamental wave mode on a transmission medium
US9865911B2 (en) 2015-06-25 2018-01-09 At&T Intellectual Property I, L.P. Waveguide system for slot radiating first electromagnetic waves that are combined into a non-fundamental wave mode second electromagnetic wave on a transmission medium
US10148016B2 (en) 2015-07-14 2018-12-04 At&T Intellectual Property I, L.P. Apparatus and methods for communicating utilizing an antenna array
US10320586B2 (en) 2015-07-14 2019-06-11 At&T Intellectual Property I, L.P. Apparatus and methods for generating non-interfering electromagnetic waves on an insulated transmission medium
US10170840B2 (en) 2015-07-14 2019-01-01 At&T Intellectual Property I, L.P. Apparatus and methods for sending or receiving electromagnetic signals
US10341142B2 (en) 2015-07-14 2019-07-02 At&T Intellectual Property I, L.P. Apparatus and methods for generating non-interfering electromagnetic waves on an uninsulated conductor
US10044409B2 (en) 2015-07-14 2018-08-07 At&T Intellectual Property I, L.P. Transmission medium and methods for use therewith
US9628116B2 (en) 2015-07-14 2017-04-18 At&T Intellectual Property I, L.P. Apparatus and methods for transmitting wireless signals
US10033107B2 (en) 2015-07-14 2018-07-24 At&T Intellectual Property I, L.P. Method and apparatus for coupling an antenna to a device
US10033108B2 (en) 2015-07-14 2018-07-24 At&T Intellectual Property I, L.P. Apparatus and methods for generating an electromagnetic wave having a wave mode that mitigates interference
US9722318B2 (en) 2015-07-14 2017-08-01 At&T Intellectual Property I, L.P. Method and apparatus for coupling an antenna to a device
US9882257B2 (en) 2015-07-14 2018-01-30 At&T Intellectual Property I, L.P. Method and apparatus for launching a wave mode that mitigates interference
US9836957B2 (en) 2015-07-14 2017-12-05 At&T Intellectual Property I, L.P. Method and apparatus for communicating with premises equipment
US10205655B2 (en) 2015-07-14 2019-02-12 At&T Intellectual Property I, L.P. Apparatus and methods for communicating utilizing an antenna array and multiple communication paths
US9853342B2 (en) 2015-07-14 2017-12-26 At&T Intellectual Property I, L.P. Dielectric transmission medium connector and methods for use therewith
US9847566B2 (en) 2015-07-14 2017-12-19 At&T Intellectual Property I, L.P. Method and apparatus for adjusting a field of a signal to mitigate interference
US9608740B2 (en) 2015-07-15 2017-03-28 At&T Intellectual Property I, L.P. Method and apparatus for launching a wave mode that mitigates interference
US10090606B2 (en) 2015-07-15 2018-10-02 At&T Intellectual Property I, L.P. Antenna system with dielectric array and methods for use therewith
US9793951B2 (en) 2015-07-15 2017-10-17 At&T Intellectual Property I, L.P. Method and apparatus for launching a wave mode that mitigates interference
US9871283B2 (en) 2015-07-23 2018-01-16 At&T Intellectual Property I, Lp Transmission medium having a dielectric core comprised of plural members connected by a ball and socket configuration
US9749053B2 (en) 2015-07-23 2017-08-29 At&T Intellectual Property I, L.P. Node device, repeater and methods for use therewith
US9948333B2 (en) 2015-07-23 2018-04-17 At&T Intellectual Property I, L.P. Method and apparatus for wireless communications to mitigate interference
US10784670B2 (en) 2015-07-23 2020-09-22 At&T Intellectual Property I, L.P. Antenna support for aligning an antenna
US9912027B2 (en) 2015-07-23 2018-03-06 At&T Intellectual Property I, L.P. Method and apparatus for exchanging communication signals
US10020587B2 (en) 2015-07-31 2018-07-10 At&T Intellectual Property I, L.P. Radial antenna and methods for use therewith
US9967173B2 (en) 2015-07-31 2018-05-08 At&T Intellectual Property I, L.P. Method and apparatus for authentication and identity management of communicating devices
US9735833B2 (en) 2015-07-31 2017-08-15 At&T Intellectual Property I, L.P. Method and apparatus for communications management in a neighborhood network
US9641205B1 (en) * 2015-09-08 2017-05-02 Amazon Technologies, Inc. Active interference cancellation
US9904535B2 (en) 2015-09-14 2018-02-27 At&T Intellectual Property I, L.P. Method and apparatus for distributing software
US10079661B2 (en) 2015-09-16 2018-09-18 At&T Intellectual Property I, L.P. Method and apparatus for use with a radio distributed antenna system having a clock reference
US9705571B2 (en) 2015-09-16 2017-07-11 At&T Intellectual Property I, L.P. Method and apparatus for use with a radio distributed antenna system
US10009063B2 (en) 2015-09-16 2018-06-26 At&T Intellectual Property I, L.P. Method and apparatus for use with a radio distributed antenna system having an out-of-band reference signal
US10051629B2 (en) 2015-09-16 2018-08-14 At&T Intellectual Property I, L.P. Method and apparatus for use with a radio distributed antenna system having an in-band reference signal
US10009901B2 (en) 2015-09-16 2018-06-26 At&T Intellectual Property I, L.P. Method, apparatus, and computer-readable storage medium for managing utilization of wireless resources between base stations
US10136434B2 (en) 2015-09-16 2018-11-20 At&T Intellectual Property I, L.P. Method and apparatus for use with a radio distributed antenna system having an ultra-wideband control channel
US9769128B2 (en) 2015-09-28 2017-09-19 At&T Intellectual Property I, L.P. Method and apparatus for encryption of communications over a network
US9729197B2 (en) 2015-10-01 2017-08-08 At&T Intellectual Property I, L.P. Method and apparatus for communicating network management traffic over a network
US9876264B2 (en) 2015-10-02 2018-01-23 At&T Intellectual Property I, Lp Communication system, guided wave switch and methods for use therewith
US9882277B2 (en) 2015-10-02 2018-01-30 At&T Intellectual Property I, Lp Communication device and antenna assembly with actuated gimbal mount
US10074890B2 (en) 2015-10-02 2018-09-11 At&T Intellectual Property I, L.P. Communication device and antenna with integrated light assembly
US10665942B2 (en) 2015-10-16 2020-05-26 At&T Intellectual Property I, L.P. Method and apparatus for adjusting wireless communications
US10355367B2 (en) 2015-10-16 2019-07-16 At&T Intellectual Property I, L.P. Antenna structure for exchanging wireless signals
US10051483B2 (en) 2015-10-16 2018-08-14 At&T Intellectual Property I, L.P. Method and apparatus for directing wireless signals
US10491260B2 (en) 2015-10-21 2019-11-26 Lg Electronics Inc. Method for controlling self-interference duplication signal for removing self-interference in environment supporting full-duplex radio (FDR) communication, and apparatus therefor
US10110306B2 (en) 2015-12-13 2018-10-23 GenXComm, Inc. Interference cancellation methods and apparatus
CN106130600B (en) * 2016-06-22 2018-11-02 电子科技大学 A kind of feedback reconstructing system of self-interference signal
US10257746B2 (en) * 2016-07-16 2019-04-09 GenXComm, Inc. Interference cancellation methods and apparatus
US9628124B1 (en) * 2016-08-17 2017-04-18 Intel Corporation Sensor signals interference mitigation method and apparatus
US9912419B1 (en) 2016-08-24 2018-03-06 At&T Intellectual Property I, L.P. Method and apparatus for managing a fault in a distributed antenna system
US9860075B1 (en) 2016-08-26 2018-01-02 At&T Intellectual Property I, L.P. Method and communication node for broadband distribution
US10291311B2 (en) 2016-09-09 2019-05-14 At&T Intellectual Property I, L.P. Method and apparatus for mitigating a fault in a distributed antenna system
US11032819B2 (en) 2016-09-15 2021-06-08 At&T Intellectual Property I, L.P. Method and apparatus for use with a radio distributed antenna system having a control channel reference signal
DE102016218891A1 (en) * 2016-09-29 2018-03-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Antenna measuring station
MX2019003935A (en) 2016-10-07 2019-06-10 Powercast Corp Automated system for lighting control.
US10135146B2 (en) 2016-10-18 2018-11-20 At&T Intellectual Property I, L.P. Apparatus and methods for launching guided waves via circuits
US10340600B2 (en) 2016-10-18 2019-07-02 At&T Intellectual Property I, L.P. Apparatus and methods for launching guided waves via plural waveguide systems
US10135147B2 (en) 2016-10-18 2018-11-20 At&T Intellectual Property I, L.P. Apparatus and methods for launching guided waves via an antenna
US10298336B1 (en) * 2016-10-20 2019-05-21 Google Llc Isolating dual polarized patch antennas
US10374316B2 (en) 2016-10-21 2019-08-06 At&T Intellectual Property I, L.P. System and dielectric antenna with non-uniform dielectric
US10811767B2 (en) 2016-10-21 2020-10-20 At&T Intellectual Property I, L.P. System and dielectric antenna with convex dielectric radome
US9876605B1 (en) 2016-10-21 2018-01-23 At&T Intellectual Property I, L.P. Launcher and coupling system to support desired guided wave mode
US9991580B2 (en) 2016-10-21 2018-06-05 At&T Intellectual Property I, L.P. Launcher and coupling system for guided wave mode cancellation
US10312567B2 (en) 2016-10-26 2019-06-04 At&T Intellectual Property I, L.P. Launcher with planar strip antenna and methods for use therewith
US10498044B2 (en) 2016-11-03 2019-12-03 At&T Intellectual Property I, L.P. Apparatus for configuring a surface of an antenna
US10224634B2 (en) 2016-11-03 2019-03-05 At&T Intellectual Property I, L.P. Methods and apparatus for adjusting an operational characteristic of an antenna
US10225025B2 (en) 2016-11-03 2019-03-05 At&T Intellectual Property I, L.P. Method and apparatus for detecting a fault in a communication system
US10291334B2 (en) 2016-11-03 2019-05-14 At&T Intellectual Property I, L.P. System for detecting a fault in a communication system
US10340601B2 (en) 2016-11-23 2019-07-02 At&T Intellectual Property I, L.P. Multi-antenna system and methods for use therewith
US10535928B2 (en) 2016-11-23 2020-01-14 At&T Intellectual Property I, L.P. Antenna system and methods for use therewith
US10178445B2 (en) 2016-11-23 2019-01-08 At&T Intellectual Property I, L.P. Methods, devices, and systems for load balancing between a plurality of waveguides
US10090594B2 (en) 2016-11-23 2018-10-02 At&T Intellectual Property I, L.P. Antenna system having structural configurations for assembly
US10340603B2 (en) 2016-11-23 2019-07-02 At&T Intellectual Property I, L.P. Antenna system having shielded structural configurations for assembly
US10361489B2 (en) 2016-12-01 2019-07-23 At&T Intellectual Property I, L.P. Dielectric dish antenna system and methods for use therewith
US10305190B2 (en) 2016-12-01 2019-05-28 At&T Intellectual Property I, L.P. Reflecting dielectric antenna system and methods for use therewith
US10819035B2 (en) 2016-12-06 2020-10-27 At&T Intellectual Property I, L.P. Launcher with helical antenna and methods for use therewith
US10382976B2 (en) 2016-12-06 2019-08-13 At&T Intellectual Property I, L.P. Method and apparatus for managing wireless communications based on communication paths and network device positions
US10694379B2 (en) 2016-12-06 2020-06-23 At&T Intellectual Property I, L.P. Waveguide system with device-based authentication and methods for use therewith
US10326494B2 (en) 2016-12-06 2019-06-18 At&T Intellectual Property I, L.P. Apparatus for measurement de-embedding and methods for use therewith
US10135145B2 (en) 2016-12-06 2018-11-20 At&T Intellectual Property I, L.P. Apparatus and methods for generating an electromagnetic wave along a transmission medium
US10637149B2 (en) 2016-12-06 2020-04-28 At&T Intellectual Property I, L.P. Injection molded dielectric antenna and methods for use therewith
US9927517B1 (en) 2016-12-06 2018-03-27 At&T Intellectual Property I, L.P. Apparatus and methods for sensing rainfall
US10727599B2 (en) 2016-12-06 2020-07-28 At&T Intellectual Property I, L.P. Launcher with slot antenna and methods for use therewith
US10020844B2 (en) 2016-12-06 2018-07-10 T&T Intellectual Property I, L.P. Method and apparatus for broadcast communication via guided waves
US10439675B2 (en) 2016-12-06 2019-10-08 At&T Intellectual Property I, L.P. Method and apparatus for repeating guided wave communication signals
US10755542B2 (en) 2016-12-06 2020-08-25 At&T Intellectual Property I, L.P. Method and apparatus for surveillance via guided wave communication
US9893795B1 (en) 2016-12-07 2018-02-13 At&T Intellectual Property I, Lp Method and repeater for broadband distribution
US10446936B2 (en) 2016-12-07 2019-10-15 At&T Intellectual Property I, L.P. Multi-feed dielectric antenna system and methods for use therewith
US10027397B2 (en) 2016-12-07 2018-07-17 At&T Intellectual Property I, L.P. Distributed antenna system and methods for use therewith
US10547348B2 (en) 2016-12-07 2020-01-28 At&T Intellectual Property I, L.P. Method and apparatus for switching transmission mediums in a communication system
US10243270B2 (en) 2016-12-07 2019-03-26 At&T Intellectual Property I, L.P. Beam adaptive multi-feed dielectric antenna system and methods for use therewith
US10168695B2 (en) 2016-12-07 2019-01-01 At&T Intellectual Property I, L.P. Method and apparatus for controlling an unmanned aircraft
US10139820B2 (en) 2016-12-07 2018-11-27 At&T Intellectual Property I, L.P. Method and apparatus for deploying equipment of a communication system
US10359749B2 (en) 2016-12-07 2019-07-23 At&T Intellectual Property I, L.P. Method and apparatus for utilities management via guided wave communication
US10389029B2 (en) 2016-12-07 2019-08-20 At&T Intellectual Property I, L.P. Multi-feed dielectric antenna system with core selection and methods for use therewith
US10777873B2 (en) 2016-12-08 2020-09-15 At&T Intellectual Property I, L.P. Method and apparatus for mounting network devices
US10411356B2 (en) 2016-12-08 2019-09-10 At&T Intellectual Property I, L.P. Apparatus and methods for selectively targeting communication devices with an antenna array
US10069535B2 (en) 2016-12-08 2018-09-04 At&T Intellectual Property I, L.P. Apparatus and methods for launching electromagnetic waves having a certain electric field structure
US9998870B1 (en) 2016-12-08 2018-06-12 At&T Intellectual Property I, L.P. Method and apparatus for proximity sensing
US10916969B2 (en) 2016-12-08 2021-02-09 At&T Intellectual Property I, L.P. Method and apparatus for providing power using an inductive coupling
US10530505B2 (en) 2016-12-08 2020-01-07 At&T Intellectual Property I, L.P. Apparatus and methods for launching electromagnetic waves along a transmission medium
US10601494B2 (en) 2016-12-08 2020-03-24 At&T Intellectual Property I, L.P. Dual-band communication device and method for use therewith
US10938108B2 (en) 2016-12-08 2021-03-02 At&T Intellectual Property I, L.P. Frequency selective multi-feed dielectric antenna system and methods for use therewith
US10326689B2 (en) 2016-12-08 2019-06-18 At&T Intellectual Property I, L.P. Method and system for providing alternative communication paths
US9911020B1 (en) 2016-12-08 2018-03-06 At&T Intellectual Property I, L.P. Method and apparatus for tracking via a radio frequency identification device
US10103422B2 (en) 2016-12-08 2018-10-16 At&T Intellectual Property I, L.P. Method and apparatus for mounting network devices
US10389037B2 (en) 2016-12-08 2019-08-20 At&T Intellectual Property I, L.P. Apparatus and methods for selecting sections of an antenna array and use therewith
US9838896B1 (en) 2016-12-09 2017-12-05 At&T Intellectual Property I, L.P. Method and apparatus for assessing network coverage
US10340983B2 (en) 2016-12-09 2019-07-02 At&T Intellectual Property I, L.P. Method and apparatus for surveying remote sites via guided wave communications
US10264586B2 (en) 2016-12-09 2019-04-16 At&T Mobility Ii Llc Cloud-based packet controller and methods for use therewith
EP3340477B1 (en) 2016-12-23 2021-11-03 Nxp B.V. A wireless transmitter, a circuit, and method for driver harmonic reduction
US9973940B1 (en) 2017-02-27 2018-05-15 At&T Intellectual Property I, L.P. Apparatus and methods for dynamic impedance matching of a guided wave launcher
US10298293B2 (en) 2017-03-13 2019-05-21 At&T Intellectual Property I, L.P. Apparatus of communication utilizing wireless network devices
US10020897B1 (en) * 2017-04-17 2018-07-10 Rosemount Aerospace Inc. Phased array tuning for interference suppression
TWI643400B (en) * 2017-10-16 2018-12-01 和碩聯合科技股份有限公司 Dual band antenna module
US10003364B1 (en) 2017-11-09 2018-06-19 At&T Intellectual Property I, L.P. Guided wave communication system with interference cancellation and methods for use therewith
US10555318B2 (en) 2017-11-09 2020-02-04 At&T Intellectual Property I, L.P. Guided wave communication system with resource allocation and methods for use therewith
US10355745B2 (en) 2017-11-09 2019-07-16 At&T Intellectual Property I, L.P. Guided wave communication system with interference mitigation and methods for use therewith
US20190215139A1 (en) * 2018-01-08 2019-07-11 Maxlinear, Inc. Digital CW Cancellation for High QAM For Point-to-Point FDD Systems
JP7238799B2 (en) * 2018-01-31 2023-03-14 ソニーグループ株式会社 Transmitting device, transmitting method, receiving device, receiving method, and communication system
WO2019171360A1 (en) 2018-03-09 2019-09-12 Isotropic Systems Ltd. Dynamic interference reduction for antenna beam tracking systems
US10579702B2 (en) 2018-04-19 2020-03-03 City University Of Hong Kong Systems and methods for signal processing using coordinate descent techniques for unit modulus least squares (UMLS) and unit-modulus quadratic program (UMQP)
US10581155B1 (en) * 2018-09-27 2020-03-03 Amazon Technologies, Inc. Active interference cancellation
US11150409B2 (en) 2018-12-27 2021-10-19 GenXComm, Inc. Saw assisted facet etch dicing
US10727945B1 (en) 2019-07-15 2020-07-28 GenXComm, Inc. Efficiently combining multiple taps of an optical filter
US11215755B2 (en) 2019-09-19 2022-01-04 GenXComm, Inc. Low loss, polarization-independent, large bandwidth mode converter for edge coupling
US11539394B2 (en) 2019-10-29 2022-12-27 GenXComm, Inc. Self-interference mitigation in in-band full-duplex communication systems
KR102104618B1 (en) * 2019-11-07 2020-04-24 한화시스템 주식회사 Antenna appartus, active electronically scanned arrary radar using the same, and error correcting method of the same
US11796737B2 (en) 2020-08-10 2023-10-24 GenXComm, Inc. Co-manufacturing of silicon-on-insulator waveguides and silicon nitride waveguides for hybrid photonic integrated circuits
WO2022046548A1 (en) * 2020-08-28 2022-03-03 Isco International, Llc Method and system for mitigating interference in the near field
WO2023075850A1 (en) 2021-10-25 2023-05-04 GenXComm, Inc. Hybrid photonic integrated circuits for ultra-low phase noise signal generators
CN114336050B (en) * 2022-03-04 2022-07-29 中国人民解放军海军工程大学 Multi-mode field cancellation coupling interference suppression method
US11476574B1 (en) 2022-03-31 2022-10-18 Isco International, Llc Method and system for driving polarization shifting to mitigate interference
US11949489B1 (en) 2022-10-17 2024-04-02 Isco International, Llc Method and system for improving multiple-input-multiple-output (MIMO) beam isolation via alternating polarization

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5835848A (en) * 1996-12-30 1998-11-10 Lucent Technologies Inc. Range repeater for a transmission system
US20020086640A1 (en) * 2000-12-29 2002-07-04 Wherenet Corp Interference suppression for wireless local area network and location system

Family Cites Families (281)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2632058A (en) * 1946-03-22 1953-03-17 Bell Telephone Labor Inc Pulse code communication
US3445771A (en) * 1966-02-28 1969-05-20 Honeywell Inc Automatic data channel equalization apparatus utilizing a transversal filter
US3571725A (en) * 1967-05-25 1971-03-23 Nippon Electric Co Multilevel signal transmission system
CH486805A (en) 1968-10-10 1970-02-28 Philips Nv Filter network with at least one tapped electromagnetic delay line
US3714437A (en) * 1970-08-14 1973-01-30 Bell Telephone Labor Inc Optical communication system with pcm encoding with plural discrete unequally spaced intensity levels
US3806915A (en) * 1972-09-05 1974-04-23 Us Navy Multithreshold analog to digital converter
BE810757A (en) 1973-02-15 1974-08-08 PROCEDURE FOR DETERMINING THE MODULATION TRANSMISSION FUNCTION
IT1091439B (en) * 1977-10-13 1985-07-06 Studi E Lab Telcomunicazioni S Modulation process for digital fibre=optic transmission - using combined pulse amplitude and pulse position modulation and three signal patterns per signal period
US4220923A (en) * 1978-03-29 1980-09-02 Harris Corporation Adaptive interference reduction system for crosstalk cancellation in a dual polarization system
IT1118625B (en) 1979-05-11 1986-03-03 Cselt Centro Studi Lab Telecom IMPROVEMENTS TO EQUALIZERS FOR TRANSMISSION OF CI NUMBER SIGNALS
US4287756A (en) 1979-10-24 1981-09-08 Gallagher John J Stratified fluid interface recorder
DE2944459C2 (en) 1979-11-03 1984-04-26 ANT Nachrichtentechnik GmbH, 7150 Backnang Method for transmitting bipolar signals by means of an optical transmitter
US4386339A (en) * 1980-03-31 1983-05-31 Hewlett-Packard Company Direct flash analog-to-digital converter and method
US4349914A (en) 1980-04-01 1982-09-14 Ford Aerospace & Communications Corp. Bit synchronous switching system for space diversity operation
US4363127A (en) 1981-01-12 1982-12-07 Ford Aerospace & Communications Corporation Line signaling apparatus and techniques for digital data links
US4393499A (en) 1981-03-11 1983-07-12 Ford Aerospace & Communications Corporation Adaptive signal quality measurement circuit for PSK and FSK demodulators
US4387461A (en) * 1981-03-11 1983-06-07 Ford Aerospace & Communications Corporation Experientially determined signal quality measurement device for antipodal data
FR2508254A1 (en) 1981-06-22 1982-12-24 Roche Bernard INTEGRATED MONOLITHIC "CODEC + FILTERS" CIRCUITS
FR2511566A1 (en) 1981-08-12 1983-02-18 Thomson Csf THRESHOLD OPTICAL RECEIVER FOR DIGITAL RATE DIGITAL TRANSMISSION SYSTEM
US4470126A (en) 1981-10-29 1984-09-04 American Microsystems, Inc. Programmable transversal filter
US4464771A (en) 1982-04-02 1984-08-07 Motorola, Inc. Phase-locked loop circuit arrangement
US4475227A (en) 1982-04-14 1984-10-02 At&T Bell Laboratories Adaptive prediction
EP0102815B1 (en) * 1982-09-02 1989-04-26 BRITISH TELECOMMUNICATIONS public limited company Optical communication
JPS5974756A (en) * 1982-10-21 1984-04-27 Kokusai Denshin Denwa Co Ltd <Kdd> Monitoring device of signal quality
GB2143096B (en) * 1983-07-06 1987-02-04 Motorola Israel Ltd Clock recovery circuit
US4618941A (en) 1983-09-19 1986-10-21 Motorola, Inc. Apparatus and method for generating filtered multilevel data from NRZ data
DE3422828A1 (en) * 1984-06-20 1986-01-02 Robert Bosch Gmbh, 7000 Stuttgart DATA RECEIVER FOR RECORDED DATA
JPS61245718A (en) 1985-04-24 1986-11-01 Iwatsu Electric Co Ltd Digital-analog converter
US4776032A (en) * 1985-05-15 1988-10-04 Nippon Telegraph And Telephone Corporation Repeater for a same frequency with spillover measurement
FR2608792B1 (en) 1986-12-23 1989-03-31 Thomson Csf DEVICE FOR AMPLIFYING OPTICAL SIGNALS WITH A PHOTOSENSITIVE MEDIUM
WO1988005235A1 (en) * 1987-01-12 1988-07-14 Fujitsu Limited Discrimination timing control circuit
GB8713699D0 (en) 1987-06-11 1987-07-15 British Telecomm Optical receiver circuit
US4873700A (en) 1987-10-14 1989-10-10 National Semiconductor Corporation Auto-threshold/adaptive equalizer
US4830493A (en) * 1987-10-29 1989-05-16 Beckman Instruments, Inc. UV scanning system for centrifuge
CA1272529A (en) 1987-12-31 1990-08-07 Northern Telecom Limited Apparatus and method for noise reduction in a digital line receiver
JPH01223837A (en) * 1988-03-03 1989-09-06 Nec Corp Optical multi-value transmitter
US5387887A (en) * 1988-05-20 1995-02-07 Texas Instruments Incorporated Miniature digitally controlled programmable transversal filter using LSI GaAs integrated circuits
JPH0227802A (en) * 1988-07-18 1990-01-30 Toshiba Corp Active array antenna
US5072221A (en) 1988-08-04 1991-12-10 Signal Processing Technologies, Inc. Error limiting analog to digital converter
GB2223369B (en) 1988-08-18 1992-11-18 Plessey Co Plc Analogue-to-digital converters
US4953041A (en) 1989-01-24 1990-08-28 Maxtor Corporation Read channel detector for use in digital magnetic recording systems
US5225798A (en) 1989-02-13 1993-07-06 Electronic Decisions Incorporated Programmable transversal filter
US4952193A (en) * 1989-03-02 1990-08-28 American Nucleonics Corporation Interference cancelling system and method
JP2800233B2 (en) 1989-03-10 1998-09-21 株式会社日立製作所 AD converter
US5237590A (en) 1989-03-13 1993-08-17 Hitachi, Ltd. Timing extraction circuit and communication system utilizing the same
US4942593A (en) 1989-03-16 1990-07-17 Dallas Semiconductor Corporation Telecommunications interface with improved jitter reporting
DE3913520A1 (en) 1989-04-25 1990-10-31 Standard Elektrik Lorenz Ag OPTICAL CABLE TELEVISION TRANSMISSION SYSTEM
JP2672146B2 (en) * 1989-04-26 1997-11-05 キヤノン株式会社 Communication system, communication system, transmitter and receiver
CA1326719C (en) 1989-05-30 1994-02-01 Thomas E. Moore Ds3 to 28 vt1.5 sonet interface circuit
US5115450A (en) * 1989-07-06 1992-05-19 Advanced Micro Devices, Inc. High speed digital to analog to digital communication system
US5184131A (en) * 1989-07-06 1993-02-02 Nissan Motor Co., Ltd. A-d converter suitable for fuzzy controller
IT1230808B (en) 1989-08-09 1991-10-29 Co E P T E Costruzioni Elettro TAPE FOR THE MARKING IN PARTICULAR OF ELECTRICAL AND SIMILAR CABLES AND THE MARKING PROCEDURE.
US5132639A (en) 1989-09-07 1992-07-21 Ortel Corporation Predistorter for linearization of electronic and optical signals
US5252930A (en) 1989-09-07 1993-10-12 Ortel Corporation Predistorter for linearization of electronic and optical signals
FR2652215B1 (en) 1989-09-19 1994-06-10 France Etat METHOD FOR ENCODING A DIGITAL SIGNAL, ENCODER AND DECODER FOR IMPLEMENTING SAID METHOD, REGENERATION METHOD AND CORRESPONDING REGENERATOR.
CA1323657C (en) * 1989-09-22 1993-10-26 Mohsen Kavenrad Optical homodyne dpsk receiver with optical amplifier
US5007106A (en) * 1989-11-08 1991-04-09 At&T Bell Laboratories Optical Homodyne Receiver
US5111065A (en) * 1990-03-23 1992-05-05 Massachusetts Institute Of Technology Diode driver circuit utilizing discrete-value DC current source
US5012475A (en) * 1990-04-17 1991-04-30 Wavelength Lasers, Inc. Analog compensation system for linear lasers
IT1239609B (en) 1990-05-11 1993-11-11 Bordoni Ugo Fondazione METHOD FOR THE FORMATION OF A MULTI-LEVEL SIGNAL ON A COHERENT OPTICAL CARRIER THROUGH PHASE MODULATION AND POLARIZATION OF THE CARRIER AND HETERODINE TRANSMISSION AND RECEPTION APPARATUS OF SIGNALS FORMED WITH SUCH METHOD
US5121411A (en) 1990-07-24 1992-06-09 Motorola, Inc. Multi-edge clock recovery method
FR2668867B1 (en) * 1990-11-02 1993-01-29 Burger Jacques BINARY CODING METHOD WITH SUBSTANTIALLY UNIFORM BINARY ELEMENTS, AND CORRESPONDING INCREMENTATION AND DECREMENTATION METHODS.
DE4040170A1 (en) * 1990-12-15 1992-06-17 Standard Elektrik Lorenz Ag TRANSMISSION SIGNAL
US5222103A (en) 1991-01-02 1993-06-22 Gte Laboratories Incorporated Differential quadrature phase shift keying encoder for subcarrier systems
US5293406A (en) * 1991-03-11 1994-03-08 Nippon Telegraph And Telephone Corporation Quadrature amplitude modulator with distortion compensation
US5208833A (en) * 1991-04-08 1993-05-04 Motorola, Inc. Multi-level symbol synchronizer
JPH04329025A (en) * 1991-04-30 1992-11-17 Toshiba Corp D/a converter
US5678198A (en) 1991-05-22 1997-10-14 Southwestern Bell Technology Resources, Inc. System for controlling signal level at both ends of a transmission link, based upon a detected value
FR2681202B1 (en) 1991-09-06 1993-11-12 Alcatel Cit OPTICAL COMMUNICATION LINK WITH CORRECTION OF NON-LINEAR EFFECTS, AND METHOD FOR PROCESSING AN OPTICAL SIGNAL.
US5243613A (en) 1991-11-05 1993-09-07 Synchronous Communications, Inc. Method and apparatus to compensate for distortion in optical transmission systems
US5282072A (en) * 1991-11-19 1994-01-25 Harmonic Lightwaves, Inc. Shunt-expansive predistortion linearizers for optical analog transmitters
US5223834A (en) 1991-11-29 1993-06-29 Industrial Technology Research Institute Timing control for precharged circuit
US5361156A (en) 1991-12-09 1994-11-01 Scientific-Atlanta, Inc. Method and apparatus for predistortion
FR2685835A1 (en) 1991-12-31 1993-07-02 France Telecom VERY LONG DISTANCE TRANSMISSION SYSTEM ON OPTICAL FIBER COMPENSATED FOR DISTORTIONS AT RECEPTION.
EP0554736B1 (en) 1992-02-01 1996-04-10 Alcatel SEL Aktiengesellschaft Digital optical transmission system with a dispersing optical waveguide at the working wavelength
JP3255179B2 (en) * 1992-02-14 2002-02-12 ソニー株式会社 Data detection device
JPH05304492A (en) * 1992-04-03 1993-11-16 Nec Corp Radio communication equipment
US5291031A (en) * 1992-04-06 1994-03-01 Telecommunications Research Laboratories Optical phase difference range determination in liquid level sensor
JP3223562B2 (en) * 1992-04-07 2001-10-29 株式会社日立製作所 Optical transmission device, optical transmission device, and optical modulator
US5528710A (en) 1992-05-05 1996-06-18 British Telecommunications Public Limited Corporation Optical switching device with passive input and output stages and active amplifier in a matrix stage
CA2072052C (en) 1992-06-23 1999-01-26 Ian R. Macdonald Apparatus for optoelectronic transversal filter
US5327279A (en) 1992-07-17 1994-07-05 United Technologies Corporation Apparatus for linearization of optic modulators using a feed-forward predistortion circuit
US5450044A (en) 1993-04-14 1995-09-12 Acrodyne Industries, Inc. Quadrature amplitude modulator including a digital amplitude modulator as a component thereof
ATE163792T1 (en) * 1992-08-06 1998-03-15 Koninkl Philips Electronics Nv DEVICE FOR REPRODUCING A DIGITAL SIGNAL FROM A RECORDING MEDIUM HAVING A VARIABLE EQUALIZER
FR2694862B1 (en) 1992-08-14 1994-09-16 Cit Alcatel Predistortion semiconductor optical source.
GB9217819D0 (en) 1992-08-21 1992-10-07 Philips Electronics Uk Ltd Data coding system
GB9218009D0 (en) 1992-08-25 1992-10-14 Philips Electronics Uk Ltd A method of,and transmitter for,transmitting a digital signal
US5436756A (en) 1992-09-30 1995-07-25 At&T Bell Laboratories Suppressed photocurrent, quantum well optical modulation device
US5481389A (en) * 1992-10-09 1996-01-02 Scientific-Atlanta, Inc. Postdistortion circuit for reducing distortion in an optical communications system
US5321543A (en) 1992-10-20 1994-06-14 General Instrument Corporation Apparatus and method for linearizing an external optical modulator
DE69322733T2 (en) * 1992-10-21 1999-07-01 At & T Corp Cascaded distortion compensation in optical analog systems
US5483552A (en) * 1992-10-27 1996-01-09 Matsushita Electric Industrial Co., Ltd. Adaptive equalizing apparatus for controlling the input signal level of quantized feedback
DE4236488A1 (en) 1992-10-29 1994-05-05 Sel Alcatel Ag Circuit at the receiving end for a system for the optical transmission of a digital signal via an optical fiber with dispersion
AU5550694A (en) 1992-11-06 1994-06-08 Pericle Communications Company Adaptive data rate modem
US5444864A (en) 1992-12-22 1995-08-22 E-Systems, Inc. Method and apparatus for cancelling in-band energy leakage from transmitter to receiver
US5428831A (en) 1993-01-08 1995-06-27 American Nucleonics Corporation Signal path length correlator and method and an interference cancellation system using the same
JPH06224852A (en) 1993-01-25 1994-08-12 Matsushita Electric Ind Co Ltd Optical transmission system
US5606734A (en) * 1993-03-02 1997-02-25 American Nucleonics Corporation Structure generated composite reference signal for interference suppression in an adaptive loop
US5321710A (en) 1993-04-19 1994-06-14 Raynet Corporation Predistortion method and apparatus for laser linearization
EP0634424B1 (en) * 1993-07-13 1997-05-28 Huntsman Petrochemical Corporation Polyether amine modification of polypropylene
US5985999A (en) 1993-07-13 1999-11-16 Huntsman, Petrochemical Corporation Dyeable polyolefin containing polyetheramine modified functionalized polyolefin
US5783630A (en) 1993-07-13 1998-07-21 Huntsman Petrochemical Corporation Polyether amine modification of polypropylene
US5959032A (en) * 1993-07-13 1999-09-28 Huntsman Petrochemical Corporation Polyether amine modification of polypropylene
US6031048A (en) * 1993-07-13 2000-02-29 Huntsman Petrochemical Corporation Polyether amine modification of polypropylene
JPH0779424A (en) * 1993-09-06 1995-03-20 Hitachi Ltd Multi-point video communication equipment
US5761243A (en) * 1993-09-16 1998-06-02 U.S. Philips Corporation Digital receiver with noise filter which also serves as a feedback filter providing intersymbol interference reduction
US5413047A (en) * 1993-10-15 1995-05-09 Atlantic Richfield Company Overburden removal method with blast casting and excavating apparatus
US5382955A (en) * 1993-11-04 1995-01-17 Tektronix, Inc. Error tolerant thermometer-to-binary encoder
US5818517A (en) * 1993-11-12 1998-10-06 Northern Telecom Limited Broadband interference reduction
US5424680A (en) 1993-11-30 1995-06-13 Harmonic Lightwaves, Inc. Predistorter for high frequency optical communications devices
DE4341408A1 (en) * 1993-12-04 1995-06-08 Sel Alcatel Ag Optical system for the transmission of a multi-stage signal
US5534101A (en) * 1994-03-02 1996-07-09 Telecommunication Research Laboratories Method and apparatus for making optical components by direct dispensing of curable liquid
DE69517614T2 (en) 1994-03-22 2001-02-15 Uniphase Opto Holdings Inc Semiconductor diode laser and its manufacturing process
US5648987A (en) * 1994-03-24 1997-07-15 Samsung Electronics Co., Ltd. Rapid-update adaptive channel-equalization filtering for digital radio receivers, such as HDTV receivers
JPH0854425A (en) 1994-04-28 1996-02-27 Hoechst Celanese Corp Electro-optical sensor device
US5408485A (en) * 1994-05-11 1995-04-18 Alcatel Network Systems, Inc. Laser modulation controller using NRZ electrical modulation level control
US5798854A (en) 1994-05-19 1998-08-25 Ortel Corporation In-line predistorter for linearization of electronic and optical signals
IT1268070B1 (en) 1994-06-06 1997-02-20 Cselt Centro Studi Lab Telecom CIRCUIT IN CMOS TECHNOLOGY FOR HIGH SPEED PILOTING OF OPTICAL SOURCES.
US5539774A (en) 1994-06-15 1996-07-23 International Business Machines Corporation Dual decision equalization method and device
EP0714558B1 (en) 1994-06-20 1999-01-20 Koninklijke Philips Electronics N.V. Radiation-emitting semiconductor index-guided diode
JP2864988B2 (en) * 1994-06-21 1999-03-08 日本電気株式会社 Soft decision signal output type receiver
JPH0817088A (en) * 1994-06-28 1996-01-19 Hitachi Ltd Ld driver for magneto-optical disk
US5757763A (en) * 1994-07-12 1998-05-26 Massachusetts Institute Of Technology Optical information storage via amplitude modulation
DE4431237A1 (en) 1994-09-02 1996-03-07 Bosch Gmbh Robert Method for obtaining bit-specific reliability information
JP2690027B2 (en) * 1994-10-05 1997-12-10 株式会社エイ・ティ・アール音声翻訳通信研究所 Pattern recognition method and apparatus
US5644325A (en) * 1994-12-12 1997-07-01 Auravision Corporation Digital to analog converter with improved output level control
US5625722A (en) * 1994-12-21 1997-04-29 Lucent Technologies Inc. Method and apparatus for generating data encoded pulses in return-to-zero format
KR960024899A (en) * 1994-12-31 1996-07-20 김주용 Representative selector and its implementation
CA2166829A1 (en) 1995-02-02 1996-08-03 Attilio Joseph Rainal System and method for minimizing nonlinear distortion in optical communication systems employing laser intensity modulation
TW282598B (en) 1995-02-22 1996-08-01 Fujitsu Ltd
AU4935296A (en) 1995-03-16 1996-10-08 Telecommunications Research Laboratories Networking computers via shared use of voice telephone lines
US5691978A (en) 1995-04-07 1997-11-25 Signal Science, Inc. Self-cancelling full-duplex RF communication system
US5548253A (en) 1995-04-17 1996-08-20 Omnipoint Corporation Spectrally efficient quadrature amplitude modulator
US5612653A (en) * 1995-06-07 1997-03-18 Telecommunications Research Laboratories LAN star connection using negative impedance for matching
US5557439A (en) 1995-07-25 1996-09-17 Ciena Corporation Expandable wavelength division multiplexed optical communications systems
US5625360A (en) * 1995-09-05 1997-04-29 Motorola, Inc. Current source for reducing noise glitches generated in a digital to analog converter and method therefor
US5920600A (en) 1995-09-18 1999-07-06 Oki Electric Industry Co., Ltd. Bit phase synchronizing circuitry for controlling phase and frequency, and PLL circuit therefor
JP3260263B2 (en) 1995-09-27 2002-02-25 富士通株式会社 Laser diode drive
US6002274A (en) 1995-09-29 1999-12-14 Dallas Semiconductor Oversampled state machine for jitter tolerant pulse detection
GB2306066B (en) 1995-10-02 2000-02-16 Northern Telecom Ltd Method of processing multi-level signals for simple clock recovery
US5825825A (en) 1996-09-17 1998-10-20 Northern Telecom Limited Method of processing multi-level signals for simple clock recovery
CA2161847A1 (en) 1995-10-31 1997-05-01 Wayne D. Grover Method for preconfiguring a network to withstand anticipated failures
US5784032A (en) * 1995-11-01 1998-07-21 Telecommunications Research Laboratories Compact diversity antenna with weak back near fields
JP2871561B2 (en) 1995-11-30 1999-03-17 株式会社エイ・ティ・アール音声翻訳通信研究所 Unspecified speaker model generation device and speech recognition device
US5861966A (en) * 1995-12-27 1999-01-19 Nynex Science & Technology, Inc. Broad band optical fiber telecommunications network
US5764542A (en) * 1996-01-11 1998-06-09 Eaton Corporation Noise filtering utilizing running average
US5699022A (en) 1996-02-09 1997-12-16 Dsc Communications Corporation Adaptive cable equalizer
US5978417A (en) 1996-02-23 1999-11-02 National Semiconductor Corporation Adaptive cable equalizer
US5706008A (en) * 1996-03-01 1998-01-06 Analog Devices, Inc. High bandwidth parallel analog-to-digital converter
WO1997035390A1 (en) 1996-03-20 1997-09-25 Philips Electronics N.V. Predistortion circuit for an analog signal in a video communication network
FR2746994B1 (en) 1996-03-29 1998-04-30 Alcatel Telspace ROBUST PHASE ESTIMATOR AND RECOVERY FOR DIGITAL SIGNALS AFFECTED IN PARTICULAR BY PHASE JIT
US5774505A (en) * 1996-04-04 1998-06-30 Hewlett-Packard Company Intersymbol interference cancellation with reduced complexity
US5903337A (en) * 1996-04-18 1999-05-11 Fuji Photo Film Co., Ltd. Film viewer
US5959750A (en) 1996-06-06 1999-09-28 Lucent Technologies Inc. Method of upgrading transmission capacity by Raman amplification
US5887022A (en) * 1996-06-12 1999-03-23 Telecommunications Research Laboratories Peer-peer frequency hopping spread spectrum wireless system
JP2817785B2 (en) * 1996-06-20 1998-10-30 日本電気株式会社 Automatic discrimination point control discriminator and control method thereof
US6317469B1 (en) 1996-06-28 2001-11-13 Lsi Logic Corporation Method and apparatus for utilizing a data processing system for multi-level data communications providing self-clocking
JP3056077B2 (en) 1996-07-19 2000-06-26 静岡日本電気株式会社 Time diversity receiver
CA2183140C (en) * 1996-08-12 2001-11-20 Grant Mcgibney Ofdm timing and frequency recovery system
JP3099745B2 (en) 1996-08-13 2000-10-16 日本電気株式会社 Automatic equalizer
US5968198A (en) 1996-08-16 1999-10-19 Ericsson, Inc. Decoder utilizing soft information output to minimize error rates
JP3148692B2 (en) 1996-09-04 2001-03-19 株式会社エイ・ティ・アール音声翻訳通信研究所 Similarity search device
JP3340341B2 (en) 1996-10-03 2002-11-05 沖電気工業株式会社 Level identification circuit
CA2188358A1 (en) * 1996-10-21 1998-04-21 Michael J. Sieben optical modulation system
US5802089A (en) 1996-10-22 1998-09-01 Maxim Integrated Products, Inc. Laser diode driver having automatic power control with smooth enable function
US5844436A (en) 1996-11-06 1998-12-01 Northern Telecom Ltd. Method of recovering a sampling clock in a framed data communications format with reduced phase jitter and wander
US5848139A (en) 1996-11-19 1998-12-08 Telecommunications Research Laboratories Telecommunication traffic pricing control system
US5828329A (en) 1996-12-05 1998-10-27 3Com Corporation Adjustable temperature coefficient current reference
EP0849723A3 (en) * 1996-12-20 1998-12-30 ATR Interpreting Telecommunications Research Laboratories Speech recognition apparatus equipped with means for removing erroneous candidate of speech recognition
US5801657A (en) 1997-02-05 1998-09-01 Stanford University Serial analog-to-digital converter using successive comparisons
US5912749A (en) * 1997-02-11 1999-06-15 Lucent Technologies Inc. Call admission control in cellular networks
CA2197624C (en) 1997-02-14 2003-07-29 Robert J. Davies Hybrid single sideband optical modulator
US6002717A (en) 1997-03-06 1999-12-14 National Semiconductor Corporation Method and apparatus for adaptive equalization using feedback indicative of undercompensation
JP2996926B2 (en) * 1997-03-11 2000-01-11 株式会社エイ・ティ・アール音声翻訳通信研究所 Phoneme symbol posterior probability calculation device and speech recognition device
US5850409A (en) 1997-03-21 1998-12-15 Maxim Integrated Products, Inc. Laser modulation control method and apparatus
JPH10276093A (en) 1997-03-28 1998-10-13 Sony Corp D/a converter
CA2201834A1 (en) 1997-04-04 1998-10-04 Gennum Corporation Serial digital data communications receiver with improved automatic cable equalizer, agc system, and dc restorer
CA2202457A1 (en) 1997-04-11 1998-10-11 Telecommunications Research Laboratories Microwave phase shifter including a reflective phase shift stage and a frequency multiplication stage
CA2202458C (en) 1997-04-11 2001-02-06 Surinder Kumar Direct qam modulator
JP3039439B2 (en) * 1997-04-23 2000-05-08 日本電気株式会社 Identification level control circuit
JPH10313260A (en) * 1997-05-13 1998-11-24 Matsushita Electric Ind Co Ltd Receiver
US6052420A (en) * 1997-05-15 2000-04-18 Northern Telecom Limited Adaptive multiple sub-band common-mode RFI suppression
JP3094950B2 (en) 1997-05-28 2000-10-03 日本電気株式会社 Optical transmission device and optical transmission method
CA2206661C (en) * 1997-05-29 2004-07-20 Telecommunications Research Laboratories A duplex decision feedback equalization system
US5872468A (en) * 1997-06-12 1999-02-16 Northern Telecom Limited Level detector circuit, interface and method for interpreting and processing multi-level signals
US6072615A (en) * 1997-06-13 2000-06-06 Lucent Technologies Inc. Phase modulator-based generation of high-quality high bit rate return-to-zero optical data streams
US5825257A (en) 1997-06-17 1998-10-20 Telecommunications Research Laboratories GMSK modulator formed of PLL to which continuous phase modulated signal is applied
US6072364A (en) * 1997-06-17 2000-06-06 Amplix Adaptive digital predistortion for power amplifiers with real time modeling of memoryless complex gains
US6034996A (en) * 1997-06-19 2000-03-07 Globespan, Inc. System and method for concatenating reed-solomon and trellis codes
US6035080A (en) * 1997-06-20 2000-03-07 Henry; Charles Howard Reconfigurable add-drop multiplexer for optical communications systems
US5883910A (en) * 1997-07-03 1999-03-16 Maxim Integrated Products, Inc. High speed semiconductor laser driver circuits
US6298459B1 (en) 1997-07-18 2001-10-02 Fujitsu Limited Analog to digital converter with encoder circuit and testing method therefor
US6212654B1 (en) * 1997-07-22 2001-04-03 Lucent Technologies Inc. Coded modulation for digital storage in analog memory devices
AU756114B2 (en) 1997-07-28 2003-01-02 Nokia Siemens Networks Gmbh & Co. Kg Radio transceiver system
US6388786B1 (en) * 1997-08-15 2002-05-14 Nec Corporation Method for generating duobinary signal and optical transmitter using the same method
US6191719B1 (en) 1997-08-25 2001-02-20 Broadcom Corporation Digital to analog converter with reduced ringing
US6031874A (en) * 1997-09-26 2000-02-29 Ericsson Inc. Unequal error protection in coded modulation schemes
US6118567A (en) 1997-09-30 2000-09-12 Motorola, Inc. Efficient encoding and detection method and device for binary intensity modulated optical data signals
US6084931A (en) 1997-10-31 2000-07-04 Motorola, Inc. Symbol synchronizer based on eye pattern characteristics having variable adaptation rate and adjustable jitter control, and method therefor
US6154301A (en) 1997-11-10 2000-11-28 Harvey; Philip C. Fiber optic receiver
US6295325B1 (en) 1997-11-14 2001-09-25 Agere Systems Guardian Corp. Fixed clock based arbitrary symbol rate timing recovery loop
JP2965537B2 (en) 1997-12-10 1999-10-18 株式会社エイ・ティ・アール音声翻訳通信研究所 Speaker clustering processing device and speech recognition device
US6108474A (en) 1997-12-11 2000-08-22 Lucent Technologies Inc. Optical pulse compressor for optical communications systems
US5949926A (en) 1997-12-15 1999-09-07 Telecommunications Research Laboratories Minimum phase dispersion compensator
US6078627A (en) * 1997-12-18 2000-06-20 Advanced Micro Devices, Inc. Circuit and method for multilevel signal decoding, descrambling, and error detection
US6011952A (en) * 1998-01-20 2000-01-04 Viasat, Inc. Self-interference cancellation for relayed communication networks
US6141127A (en) 1998-02-20 2000-10-31 Lucent Technologies Inc. High capacity chirped-pulse wavelength-division multiplexed communication method and apparatus
US6452945B1 (en) 1998-03-05 2002-09-17 Kestrel Solutions, Inc. Electrical add-drop multiplexing for optical communications networks utilizing frequency division multiplexing
JP2986792B2 (en) * 1998-03-16 1999-12-06 株式会社エイ・ティ・アール音声翻訳通信研究所 Speaker normalization processing device and speech recognition device
US6169764B1 (en) * 1998-03-19 2001-01-02 Plato Labs, Inc. Analog adaptive line equalizer
US6141387A (en) 1998-03-19 2000-10-31 Motorola, Inc. Digital QAM modulator using post filtering carrier recombination
US5943457A (en) 1998-03-24 1999-08-24 Telecommunications Research Laboratories Generalized resonant coupler filters
US6118563A (en) 1998-03-25 2000-09-12 Corning Incorporated Methods and apparatus for reducing four-wave mixing
DE19815011A1 (en) 1998-04-03 1999-10-14 Temic Semiconductor Gmbh Process for the transmission of digital transmission signals
JPH11298421A (en) * 1998-04-13 1999-10-29 Nippon Hoso Kyokai <Nhk> Synchronization repeater
US6093496A (en) 1998-05-12 2000-07-25 Huntsman Petrochemical Corporation Polyolefin containing polyetheramine modified functionalized polyolefin
US6259836B1 (en) 1998-05-14 2001-07-10 Telecommunications Research Laboratories Optical frequency shifter and transmission system
US6148428A (en) 1998-05-21 2000-11-14 Calimetrics, Inc. Method and apparatus for modulation encoding data for storage on a multi-level optical recording medium
US20010024542A1 (en) 1998-06-09 2001-09-27 Stefano Aina Method and device for dropping optical channels in an optical transmission system
US6226112B1 (en) * 1998-06-18 2001-05-01 Agere Systems Inc. Optical time-division-multiplex system
US6219633B1 (en) * 1998-08-06 2001-04-17 Atr Interpreting Telecommunications Research Laboratories Apparatus and method for producing analogically similar word based on pseudo-distances between words
EP1104604A1 (en) 1998-08-10 2001-06-06 Feher Kamilo Efficient spectral saving fqpsk and fqam signal transmission and reception systems
KR100323585B1 (en) 1998-08-31 2002-10-25 한국전기통신공사 Bias Stabilization Method of Electro-optical Optical Modulator by Off-Level Sampling
US6222861B1 (en) * 1998-09-03 2001-04-24 Photonic Solutions, Inc. Method and apparatus for controlling the wavelength of a laser
US6356374B1 (en) * 1998-10-09 2002-03-12 Scientific-Atlanta, Inc. Digital optical transmitter
US6163638A (en) 1998-10-29 2000-12-19 Lucent Technologies Inc. Article comprising an optical pulse compressor
US6289151B1 (en) 1998-10-30 2001-09-11 Lucent Technologies Inc. All-pass optical filters
EP1145024B1 (en) 1998-11-13 2003-05-14 Broadcom Corporation Dynamic register with iddq testing capability
CA2255516A1 (en) 1998-12-11 2000-06-11 Telecommunications Research Laboratories Multiport antenna and method of processing multipath signals received by a multiport antenna
JP2000183781A (en) * 1998-12-16 2000-06-30 Antenna Giken Kk Broad band interference wave elimination device
US6211978B1 (en) * 1999-02-10 2001-04-03 Anacom Systems, Inc. Multi-channel wave division multiplexer system
US6201916B1 (en) * 1999-03-15 2001-03-13 Lucent Technologies Inc. Article comprising means for optical pulse reshaping
DE60025290T2 (en) 1999-03-26 2006-08-31 Matsushita Electric Industrial Co., Ltd., Kadoma Multi-level signal discriminator
JP2000286745A (en) * 1999-03-30 2000-10-13 Kokusai Electric Co Ltd Common antenna system
US6169912B1 (en) * 1999-03-31 2001-01-02 Pericom Semiconductor Corp. RF front-end with signal cancellation using receiver signal to eliminate duplexer for a cordless phone
US6259847B1 (en) 1999-04-07 2001-07-10 Lucent Technologies Inc. Optical communication system including broadband all-pass filter for dispersion compensation
US6304199B1 (en) 1999-05-05 2001-10-16 Maxim Integrated Products, Inc. Method and apparatus for deglitching digital to analog converters
JP4180738B2 (en) * 1999-06-14 2008-11-12 株式会社東芝 Digital signal quality monitoring method and communication apparatus using the method
US6271944B1 (en) 1999-06-30 2001-08-07 Philips Electronics North America Corp. Laser wavelength control in an optical communication system
JP2001016152A (en) * 1999-06-30 2001-01-19 Mitsubishi Electric Corp Wireless repeater
US6341023B1 (en) * 1999-07-23 2002-01-22 Tycom (Us) Inc. Multiple level modulation in a wavelength-division multiplexing (WDM) systems
US6208792B1 (en) * 1999-09-20 2001-03-27 Lucent Technologies Inc. Article comprising a planar optical waveguide with optically non-linear core
US6313713B1 (en) 1999-09-28 2001-11-06 The United States Of America As Represented By The Secretary Of The Navy Matched pair circulator antenna isolation circuit
JP3387460B2 (en) * 1999-10-01 2003-03-17 日本電気株式会社 Relay broadcasting equipment
US7061657B1 (en) 1999-10-12 2006-06-13 Futurewei Technologies, Inc. Multichannel optical communication system and method utilizing wavelength and coherence division multiplexing
US6920315B1 (en) * 2000-03-22 2005-07-19 Ericsson Inc. Multiple antenna impedance optimization
US6385435B1 (en) * 2000-04-20 2002-05-07 Jhong Sam Lee Coupled interference concellation system for wideband repeaters in a cellular system
US6473131B1 (en) 2000-06-30 2002-10-29 Stmicroelectronics, Inc. System and method for sampling an analog signal level
US6961019B1 (en) * 2000-08-10 2005-11-01 Sirf Technology, Inc. Method and apparatus for reducing GPS receiver jamming during transmission in a wireless receiver
IL154552A0 (en) * 2000-08-31 2003-09-17 Millimetrix Broadband Networks Improved spatial efficiency for wireless rings and network of links in millimeter wave (mmw) communication systems
US6539204B1 (en) * 2000-09-29 2003-03-25 Mobilian Corporation Analog active cancellation of a wireless coupled transmit signal
JP3565160B2 (en) * 2000-11-17 2004-09-15 日本電気株式会社 Cross polarization interference compensation circuit
US7099662B2 (en) * 2000-11-21 2006-08-29 Vega Grieshaber Kg Transceiver unit with interference-reducing antenna
US6560257B1 (en) * 2000-11-28 2003-05-06 Harris Corporation Low power laser driver
US6665500B2 (en) 2001-01-29 2003-12-16 Oyster Optics, Inc. Dual-mode fiber optic telecommunications system and method
US6445476B1 (en) 2001-01-29 2002-09-03 Stratalight Communications, Inc. Transmission and reception of duobinary multilevel pulse-amplitude-modulated optical signals using subsequence-based encoder
JP2002271241A (en) * 2001-03-06 2002-09-20 Matsushita Electric Ind Co Ltd Relay system
WO2002067521A1 (en) 2001-03-29 2002-08-29 Quellan, Inc. Increasing data throughput in optical fiber transmission systems
DE60238602D1 (en) 2001-04-04 2011-01-27 Quellan Inc METHOD AND SYSTEM FOR DECODING MULTI-LEVEL SIGNALS
US6978125B2 (en) * 2001-07-05 2005-12-20 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatus for tuning pre-selection filters in radio receivers
US20030030873A1 (en) 2001-05-09 2003-02-13 Quellan, Inc. High-speed adjustable multilevel light modulation
JP4792173B2 (en) * 2001-06-08 2011-10-12 インターナショナル・ビジネス・マシーンズ・コーポレーション ANTENNA DEVICE, TRANSMITTER / RECEIVER, ELECTRIC DEVICE, AND COMPUTER TERMINAL
US7068948B2 (en) 2001-06-13 2006-06-27 Gazillion Bits, Inc. Generation of optical signals with return-to-zero format
JP4278332B2 (en) * 2001-06-29 2009-06-10 日本電信電話株式会社 Optical transmitter and optical transmission system
JP2003060578A (en) * 2001-08-13 2003-02-28 Matsushita Electric Ind Co Ltd Optical transmitter, optical receiver and optical wavelength division multiplexing system
US6956914B2 (en) * 2001-09-19 2005-10-18 Gennum Corporation Transmit amplitude independent adaptive equalizer
US7092644B2 (en) * 2001-09-28 2006-08-15 New Focus, Inc. Optical receiver including a dual gain path amplifier system
US20030067990A1 (en) * 2001-10-01 2003-04-10 Bryant Paul Henry Peak to average power ratio reduction in a digitally-modulated signal
US6751587B2 (en) 2002-01-04 2004-06-15 Broadcom Corporation Efficient excitation quantization in noise feedback coding with general noise shaping
AU2003211094A1 (en) 2002-02-15 2003-09-09 Quellan, Inc. Multi-level signal clock recovery technique
US6816101B2 (en) 2002-03-08 2004-11-09 Quelian, Inc. High-speed analog-to-digital converter using a unique gray code
WO2003092237A1 (en) 2002-04-23 2003-11-06 Quellan, Inc. Combined ask/dpsk modulation system
AU2003256569A1 (en) 2002-07-15 2004-02-02 Quellan, Inc. Adaptive noise filtering and equalization
US7756421B2 (en) 2002-10-03 2010-07-13 Ciena Corporation Electrical domain compensation of non-linear effects in an optical communications system
US7934144B2 (en) 2002-11-12 2011-04-26 Quellan, Inc. High-speed analog-to-digital conversion with improved robustness to timing uncertainty
US6819166B1 (en) 2003-01-03 2004-11-16 Silicon Image, Inc. Continuous-time, low-frequency-gain/high-frequency-boosting joint adaptation equalizer and method
US20040190661A1 (en) 2003-03-26 2004-09-30 Quellan, Inc. Method and system for equalizing communication signals
US20040213354A1 (en) 2003-04-28 2004-10-28 Jones William W. Mixed domain cancellation
US7577084B2 (en) 2003-05-03 2009-08-18 Ikanos Communications Inc. ISDN crosstalk cancellation in a DSL system
US20050069063A1 (en) * 2003-09-30 2005-03-31 Intel Corporation Broadband interference cancellation
US7123676B2 (en) 2003-11-17 2006-10-17 Quellan, Inc. Method and system for antenna interference cancellation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5835848A (en) * 1996-12-30 1998-11-10 Lucent Technologies Inc. Range repeater for a transmission system
US20020086640A1 (en) * 2000-12-29 2002-07-04 Wherenet Corp Interference suppression for wireless local area network and location system

Also Published As

Publication number Publication date
US20050226353A1 (en) 2005-10-13
DE602004030032D1 (en) 2010-12-23
US7366244B2 (en) 2008-04-29
US7729431B2 (en) 2010-06-01
US20060291598A1 (en) 2006-12-28
KR20060123350A (en) 2006-12-01
EP1687929A4 (en) 2007-11-07
EP1687929A2 (en) 2006-08-09
EP1687929B1 (en) 2010-11-10
JP4510832B2 (en) 2010-07-28
WO2005050896A2 (en) 2005-06-02
US20080146183A1 (en) 2008-06-19
HK1096500A1 (en) 2007-06-01
KR101197810B1 (en) 2012-11-05
ATE488068T1 (en) 2010-11-15
JP2007519306A (en) 2007-07-12
US7123676B2 (en) 2006-10-17

Similar Documents

Publication Publication Date Title
WO2005050896A3 (en) Method and system for antenna interference cancellation
EP1667114A4 (en) Signal processing method and apparatus
GB2421674A (en) Method and system for crosstalk cancellation
AU1873899A (en) A method for improved channel impulse response estimation in tdma systems
NO20053949L (en) Downhole telemetry system using discrete multi-modulation with adaptive noise suppression
AU2003268002A1 (en) Frequency domain equalization of communication signals
AU2351500A (en) System and method for characterizing, synthesizing, and/or canceling out acoustic signals from inanimate sound sources
EP0739102A3 (en) Subband echo cancellation method using projection algorithm
GB2367137A (en) Distributed processing system for component lifetime prediction
WO2003001684A3 (en) A timing estimation method and apparatus for a location system
WO2001010170A3 (en) Feedback cancellation apparatus and methods utilizing an adaptive reference filter
WO2005060582A3 (en) A downlink activity and double talk probability detector and method for an echo canceler circuit
WO2006020361A3 (en) Systems and methods for echo cancellation and noise reduction
WO2006110319A3 (en) Method and apparatus for enhancing signal-to-noise ratio of position location measurements
WO2007013900A3 (en) Method and system for automatic control in an interference cancellation device
WO2004110078A3 (en) Receiver based saturation estimator
WO2008045537A3 (en) System and method for canceling acoustic echoes in audio-conference communication systems
WO2006065616A3 (en) Gain control for interference cancellation
WO2007005858A3 (en) Device, system and method of crosstalk cancellation
ATE265783T1 (en) METHOD AND DEVICE FOR ECHOUGH REDUCTION
EP1035681A3 (en) Method for interference cancellation
WO2001052430A8 (en) Method for interference detection and cancellation in a tramsmission system
ATE270482T1 (en) ESTIMATION OF THE CHANNEL PULSE RESPONSE USING THE SCATTERAGE OF THE RECEIVED SIGNAL
DE602004016614D1 (en) Reduction of inter-chamber interference
WO2006064024A3 (en) Processing a radiation representative signal

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2006540023

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

WWW Wipo information: withdrawn in national office

Country of ref document: DE

WWE Wipo information: entry into national phase

Ref document number: 2004811319

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 1020067012072

Country of ref document: KR

WWP Wipo information: published in national office

Ref document number: 2004811319

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1020067012072

Country of ref document: KR