DE69606095D1 - Störungsunterdrückungs-Verfahren und -System für Rückkehrsignale in Kabelanlagen - Google Patents
Störungsunterdrückungs-Verfahren und -System für Rückkehrsignale in KabelanlagenInfo
- Publication number
- DE69606095D1 DE69606095D1 DE69606095T DE69606095T DE69606095D1 DE 69606095 D1 DE69606095 D1 DE 69606095D1 DE 69606095 T DE69606095 T DE 69606095T DE 69606095 T DE69606095 T DE 69606095T DE 69606095 D1 DE69606095 D1 DE 69606095D1
- Authority
- DE
- Germany
- Prior art keywords
- signal
- interference
- return
- reference signal
- frequencies
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/10—Adaptations for transmission by electrical cable
- H04N7/102—Circuits therefor, e.g. noise reducers, equalisers, amplifiers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
- H04N7/17309—Transmission or handling of upstream communications
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/473,755 US5742591A (en) | 1995-06-07 | 1995-06-07 | Interference cancellation system for CATV return transmissions |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69606095D1 true DE69606095D1 (de) | 2000-02-17 |
DE69606095T2 DE69606095T2 (de) | 2000-05-25 |
Family
ID=23880839
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69606095T Expired - Lifetime DE69606095T2 (de) | 1995-06-07 | 1996-05-23 | Störungsunterdrückungs-Verfahren und -System für Rückkehrsignale in Kabelanlagen |
Country Status (6)
Country | Link |
---|---|
US (1) | US5742591A (de) |
EP (1) | EP0748120B1 (de) |
AT (1) | ATE188828T1 (de) |
CA (1) | CA2176409C (de) |
DE (1) | DE69606095T2 (de) |
ES (1) | ES2142026T3 (de) |
Families Citing this family (49)
Publication number | Priority date | Publication date | Assignee | Title |
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US5915205A (en) * | 1996-01-19 | 1999-06-22 | Texas Instruments Incorporated | Ingress noise cancellation for upstream signals on a cable television system using an antenna to determine local noise |
US5881363A (en) * | 1996-04-29 | 1999-03-09 | Philips Electronics North America | Method and apparatus for combatting ingress and multipath in a CATV return channel |
US6192087B1 (en) | 1996-11-15 | 2001-02-20 | Conexant Systems, Inc. | Method and apparatus for spectral shaping in signal-point limited transmission systems |
US6278744B1 (en) | 1996-11-15 | 2001-08-21 | Conexant Systems, Inc. | System for controlling and shaping the spectrum and redundancy of signal-point limited transmission |
US6859828B1 (en) * | 1997-02-25 | 2005-02-22 | Agilent Technologies, Inc. | Bi-directional test system for network analysis |
US5870513A (en) * | 1997-06-17 | 1999-02-09 | Cable Television Laboratories, Inc. | Bidirectional cable network with a mixing tap for suppressing undesirable noise in signals from a remote end of the network |
GB9713790D0 (en) * | 1997-07-01 | 1997-09-03 | Raychem Sa Nv | Noise monitoring unit |
US6269093B1 (en) * | 1997-12-16 | 2001-07-31 | Nokia Mobile Phones Limited | Adaptive removal of disturbance in TDMA acoustic peripheral devices |
US6363105B1 (en) * | 1998-02-17 | 2002-03-26 | Ericsson Inc. | Flexible sliding correlator for direct sequence spread spectrum systems |
US5994955A (en) * | 1998-06-26 | 1999-11-30 | Maxim Integrated Products, Inc. | Driver amplifiers with low noise standby mode characteristics |
US6760316B1 (en) | 1998-10-30 | 2004-07-06 | Broadcom Corporation | Method and apparatus for the synchronization of multiple cable modem termination system devices |
US6961314B1 (en) | 1998-10-30 | 2005-11-01 | Broadcom Corporation | Burst receiver for cable modem system |
ATE412289T1 (de) | 1998-10-30 | 2008-11-15 | Broadcom Corp | Kabelmodemsystem |
US7103065B1 (en) | 1998-10-30 | 2006-09-05 | Broadcom Corporation | Data packet fragmentation in a cable modem system |
US6327709B1 (en) * | 1998-12-22 | 2001-12-04 | General Instruments Corporation | Method and apparatus for filtering interference and nonlinear distortions |
US6570394B1 (en) * | 1999-01-22 | 2003-05-27 | Thomas H. Williams | Tests for non-linear distortion using digital signal processing |
FI106995B (fi) * | 1999-02-26 | 2001-05-15 | Nokia Mobile Phones Ltd | Menetelmä häiriöiden pienentämiseksi vastaanottimessa |
US7620611B1 (en) * | 1999-07-20 | 2009-11-17 | Trilithic, Inc. | Neural networks for ingress monitoring |
US7161513B2 (en) * | 1999-10-19 | 2007-01-09 | Rambus Inc. | Apparatus and method for improving resolution of a current mode driver |
US7124221B1 (en) * | 1999-10-19 | 2006-10-17 | Rambus Inc. | Low latency multi-level communication interface |
US6396329B1 (en) * | 1999-10-19 | 2002-05-28 | Rambus, Inc | Method and apparatus for receiving high speed signals with low latency |
JP3802422B2 (ja) | 2000-04-24 | 2006-07-26 | ロッキード・マーティン・コーポレイション | 受動可干渉位置決めシステムおよびそのシステムの使用方法 |
US6757910B1 (en) * | 2000-06-08 | 2004-06-29 | C-Cor.Net Corporation | Adaptive filter for reducing ingress noise in CATV return signals |
IL155513A0 (en) * | 2000-10-20 | 2003-11-23 | Lockheed Corp | Civil aviation passive coherent location system and method |
US6710743B2 (en) * | 2001-05-04 | 2004-03-23 | Lockheed Martin Corporation | System and method for central association and tracking in passive coherent location applications |
CA2469185A1 (en) | 2001-12-05 | 2003-06-19 | Lockheed Martin Corporation | System and method for auto calibrated reduced rank adaptive processor |
US7971225B2 (en) * | 2002-02-08 | 2011-06-28 | Finisar Corporation | Bandpass component decimation and transmission of data in cable television digital return path |
US8861667B1 (en) | 2002-07-12 | 2014-10-14 | Rambus Inc. | Clock data recovery circuit with equalizer clock calibration |
US7292629B2 (en) * | 2002-07-12 | 2007-11-06 | Rambus Inc. | Selectable-tap equalizer |
US20040106381A1 (en) * | 2002-09-06 | 2004-06-03 | Engim Incorporated | Transmit signal cancellation in wireless receivers |
US7716712B2 (en) | 2003-06-18 | 2010-05-11 | General Instrument Corporation | Narrowband interference and identification and digital processing for cable television return path performance enhancement |
US7254200B2 (en) * | 2004-05-13 | 2007-08-07 | Hellosoft, Inc. | System and method for frequency burst detection for GSM/GPRS |
US7724848B2 (en) * | 2005-07-26 | 2010-05-25 | Data Device Corporation | Predictive signal cancellation for extracting 1 Mb/s MIL-STD-1553 component from composite high performance 1553 signal |
US20070082638A1 (en) * | 2005-09-03 | 2007-04-12 | Oleg Panfilov | Adaptive Narrowband Interference Canceller for Broadband Systems |
US7907690B2 (en) * | 2006-10-17 | 2011-03-15 | Edgewater Computer Systems, Inc. | Interference cancellation system and method using impulse response |
US7822126B2 (en) * | 2006-08-10 | 2010-10-26 | Edgewater Computer Systems, Inc. | Interference cancellation system and method |
US10162782B2 (en) | 2006-05-22 | 2018-12-25 | Edgewater Computer Systems, Inc. | Data communications system and method of data transmission |
US8135058B2 (en) | 2008-10-10 | 2012-03-13 | Csr Technology Inc. | Adaptive known signal canceller |
US9647851B2 (en) | 2008-10-13 | 2017-05-09 | Ppc Broadband, Inc. | Ingress noise inhibiting network interface device and method for cable television networks |
GB2480959B (en) | 2009-04-01 | 2014-11-26 | David Zilberberg | System for reducing noise in a catv home amplifier upstream path and a method thereof |
US8588724B2 (en) * | 2009-08-20 | 2013-11-19 | Alfred E. Mann Foundation For Scientific Research | Optimal narrowband interference removal for signals separated in time |
EP2451097A1 (de) * | 2010-11-05 | 2012-05-09 | Sony Ericsson Mobile Communications AB | Verfahren und Vorrichtung zur Störungsreduktion in einem Audiosignal während eines Anrufs |
US9059786B2 (en) * | 2011-07-07 | 2015-06-16 | Vecima Networks Inc. | Ingress suppression for communication systems |
US8942330B2 (en) | 2012-01-18 | 2015-01-27 | Baker Hughes Incorporated | Interference reduction method for downhole telemetry systems |
WO2014062933A1 (en) | 2012-10-17 | 2014-04-24 | Ppc Broadband, Inc. | Network interface device and method having passive operation mode and noise management |
US10044490B2 (en) * | 2013-11-14 | 2018-08-07 | Parallel Wireless, Inc. | Adjacent channel interference cancellation in multi-channel systems |
US10623986B2 (en) * | 2015-10-22 | 2020-04-14 | Photonic Systems, Inc. | RF signal separation and suppression system and method |
US10389464B2 (en) * | 2016-04-28 | 2019-08-20 | Samsung Electronics Co., Ltd | System and method for improved data decoding, tracking, and other receiver functions in the presence of interference |
CN110897621B (zh) * | 2019-10-21 | 2022-10-28 | 思澜科技(成都)有限公司 | 一种生理信号提取方法及其系统 |
Family Cites Families (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4689628A (en) * | 1974-08-16 | 1987-08-25 | The United States Of America As Represented By The Secretary Of The Navy | Adapive sidelobe canceller system |
US5049890A (en) * | 1974-09-23 | 1991-09-17 | The United States Of America As Represented By The Secretary Of The Navy | Sampled data processing |
US4439770A (en) * | 1976-06-23 | 1984-03-27 | The United States Of America As Represented By The Secretary Of The Navy | Cascaded adaptive loops |
JPS57125530A (en) * | 1981-01-28 | 1982-08-04 | Nippon Gakki Seizo Kk | Removing circuit for interference of adjacent station at receiver |
US4408615A (en) * | 1981-03-02 | 1983-10-11 | Cambridge Instruments, Inc. | Interference filter |
US4412341A (en) * | 1981-11-18 | 1983-10-25 | Bell Telephone Laboratories, Incorporated | Interference cancellation method and apparatus |
US4435841A (en) * | 1982-03-01 | 1984-03-06 | Zenith Radio Corporation | Communications receiver having a switchable filter input stage |
US4549183A (en) * | 1982-08-02 | 1985-10-22 | Selenia Spa | Interference suppressor for an electronically or mechanically scanning monopulse radar generating sum and difference signals from received microwave energy |
US4472814A (en) * | 1982-09-01 | 1984-09-18 | The United States Of America As Represented By The Secretary Of The Army | CW Interference cancelling system for spread spectrum signals |
US4472815A (en) * | 1982-09-27 | 1984-09-18 | The United States Of America As Represented By The Secretary Of The Army | Pulse interference cancelling system for spread spectrum signals |
US4475214A (en) * | 1982-10-12 | 1984-10-02 | The United States Of America As Represented By The Secretary Of The Army | CW Interference cancelling sytem for spread spectrum signals utilizing active coherent detection |
NL8301179A (nl) * | 1983-04-01 | 1984-11-01 | Philips Nv | Ontvanger voor hf-signalen voorzien van een paar parallelle signaalwegen. |
US4608569A (en) * | 1983-09-09 | 1986-08-26 | General Electric Company | Adaptive signal processor for interference cancellation |
US4612549A (en) * | 1983-12-23 | 1986-09-16 | General Electric Company | Interference canceller loop having automatic nulling of the loop phase shift for use in a reception system |
US4660042A (en) * | 1984-02-24 | 1987-04-21 | Litton Systems, Inc. | Cancellation system for transmitter interference with nearby receiver |
CA1235751A (en) * | 1985-01-09 | 1988-04-26 | Junji Namiki | One frequency repeater for a digital microwave radio system with cancellation of transmitter-to-receiver interference |
US4812851A (en) * | 1985-10-31 | 1989-03-14 | Digital Marine Electronics Corporation | Radio receiver with automatic interference cancellation |
US4736455A (en) * | 1985-12-23 | 1988-04-05 | Nippon Telegraph And Telephone Corporation | Interference cancellation system |
EP0289617B1 (de) * | 1986-10-22 | 1994-01-12 | Kokusai Denshin Denwa Co., Ltd | System zur Auslöschung von Interferenzen |
US4748667A (en) * | 1986-11-04 | 1988-05-31 | Scientific Atlanta | Jamming signal scrambling and descrambling systems for CATV |
US5115454A (en) * | 1987-05-12 | 1992-05-19 | Kucar Andy D | Method and apparatus for carrier synchronization and data detection |
US4996488A (en) * | 1987-10-01 | 1991-02-26 | Nave Mark J | Measuring and limiting EMI with a selectable mode reflection network |
CA1320535C (en) * | 1988-02-29 | 1993-07-20 | Kazuzi Watanabe | Interference cancellation circuit |
US4912721A (en) * | 1988-04-29 | 1990-03-27 | Scientific-Atlanta, Inc. | Cable television spread spectrum data transmission apparatus |
US4991165A (en) * | 1988-09-28 | 1991-02-05 | The United States Of America As Represented By The Secretary Of The Navy | Digital adaptive interference canceller |
JPH0622352B2 (ja) * | 1988-10-12 | 1994-03-23 | 勝敏 嶺 | ノイズ除去方法 |
US5260707A (en) * | 1988-12-22 | 1993-11-09 | Hughes Aircraft Company | Phase coherent interference signal suppression system and method |
US5117505A (en) * | 1990-02-22 | 1992-05-26 | American Nucleonics Corporation | Interference cancellation system having noise reduction features and method |
US5125108A (en) * | 1990-02-22 | 1992-06-23 | American Nucleonics Corporation | Interference cancellation system for interference signals received with differing phases |
US5225902A (en) * | 1990-03-20 | 1993-07-06 | Scientific-Atlanta, Inc. | Automatic frequency selection in a bi-directional cable television system |
CA2078561A1 (en) * | 1990-03-20 | 1991-09-21 | Jay Cauthern Mcmullan, Jr. | Cable television radio frequency return method |
JPH03280682A (ja) * | 1990-03-28 | 1991-12-11 | Matsushita Electric Ind Co Ltd | キーイングパルス処理回路 |
US5133017A (en) * | 1990-04-09 | 1992-07-21 | Active Noise And Vibration Technologies, Inc. | Noise suppression system |
US5208837A (en) * | 1990-08-31 | 1993-05-04 | Allied-Signal Inc. | Stationary interference cancellor |
US5140699A (en) * | 1990-12-24 | 1992-08-18 | American Nucleonics Corporation | Detector DC offset compensator |
US5319636A (en) * | 1991-11-14 | 1994-06-07 | Codex Corporation | Device and method for linear listener echo cancellation |
US5148117A (en) * | 1991-11-25 | 1992-09-15 | American Nucleonics Corporation | Adaptive feed-forward method and apparatus for amplifier noise reduction |
JP3225560B2 (ja) * | 1991-11-27 | 2001-11-05 | 日本電気株式会社 | 交差偏波干渉補償装置 |
JP2780576B2 (ja) * | 1992-08-05 | 1998-07-30 | 日本電気株式会社 | 干渉波除去装置 |
-
1995
- 1995-06-07 US US08/473,755 patent/US5742591A/en not_active Expired - Fee Related
-
1996
- 1996-05-13 CA CA002176409A patent/CA2176409C/en not_active Expired - Lifetime
- 1996-05-23 ES ES96303690T patent/ES2142026T3/es not_active Expired - Lifetime
- 1996-05-23 EP EP96303690A patent/EP0748120B1/de not_active Expired - Lifetime
- 1996-05-23 DE DE69606095T patent/DE69606095T2/de not_active Expired - Lifetime
- 1996-05-23 AT AT96303690T patent/ATE188828T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0748120B1 (de) | 2000-01-12 |
EP0748120A1 (de) | 1996-12-11 |
CA2176409C (en) | 2000-08-22 |
CA2176409A1 (en) | 1996-12-08 |
ATE188828T1 (de) | 2000-01-15 |
DE69606095T2 (de) | 2000-05-25 |
US5742591A (en) | 1998-04-21 |
ES2142026T3 (es) | 2000-04-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |