CA2245373A1 - Frequency mixing passive transponder - Google Patents

Frequency mixing passive transponder

Info

Publication number
CA2245373A1
CA2245373A1 CA002245373A CA2245373A CA2245373A1 CA 2245373 A1 CA2245373 A1 CA 2245373A1 CA 002245373 A CA002245373 A CA 002245373A CA 2245373 A CA2245373 A CA 2245373A CA 2245373 A1 CA2245373 A1 CA 2245373A1
Authority
CA
Canada
Prior art keywords
wave
waves
producing
frequency
frequency mixing
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.)
Granted
Application number
CA002245373A
Other languages
French (fr)
Other versions
CA2245373C (en
Inventor
Paul A. Nysen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xcyte Inc
Original Assignee
Xcyte Inc
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 Xcyte Inc filed Critical Xcyte Inc
Publication of CA2245373A1 publication Critical patent/CA2245373A1/en
Application granted granted Critical
Publication of CA2245373C publication Critical patent/CA2245373C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/75—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors
    • G01S13/751—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal
    • G01S13/758—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal using a signal generator powered by the interrogation signal
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/74—Systems using reradiation of acoustic waves, e.g. IFF, i.e. identification of friend or foe

Abstract

A transponder device, receiving a plurality of waves having differing frequencies, and producing a wave, having a frequency differing from the plurality of received waves, having characteristic modifications, having a mixer, receiving at least two waves and producing a mixed wave having a frequency differing from the received plurality of waves; and a wave modifying device, producing a characteristically modified wave from an input wave, the mixer being interconnected with the wave modifying device to produce, from the received plurality of waves, an output which is both characteristically modified and at a frequency of the mixed wave. The device may include one or more antenna structures, and preferably produces a mixed wave which is then characteristically modified and emitted from the device. The wave modifying device is, for example, a semiconductor modulator or an acoustic wave device.
CA002245373A 1997-08-18 1998-08-18 Frequency mixing passive transponder Expired - Fee Related CA2245373C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/914,455 US6060815A (en) 1997-08-18 1997-08-18 Frequency mixing passive transponder
US08/914,455 1997-08-18

Publications (2)

Publication Number Publication Date
CA2245373A1 true CA2245373A1 (en) 1999-02-18
CA2245373C CA2245373C (en) 2008-04-22

Family

ID=25434394

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002245373A Expired - Fee Related CA2245373C (en) 1997-08-18 1998-08-18 Frequency mixing passive transponder

Country Status (2)

Country Link
US (1) US6060815A (en)
CA (1) CA2245373C (en)

Families Citing this family (73)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080065290A1 (en) * 2000-09-08 2008-03-13 Automotive Technologies International, Inc. Component Monitoring System
US7549327B2 (en) * 2001-02-16 2009-06-23 Automotive Technologies International, Inc. Tire-mounted energy generator and monitor
US6367697B1 (en) * 1997-08-28 2002-04-09 Supersensor (Proprietary) Limited Reader arrangement for an electronic identification system having a plurality of reader heads for energizing transponders
EP1038257B2 (en) * 1998-07-21 2008-10-08 Nxp B.V. System for the transmission of data from a data carrier to a station by means of at least one other auxiliary carrier signal
GB9911878D0 (en) * 1999-05-22 1999-07-21 Marconi Electronic Syst Ltd Identification tag
FI116188B (en) * 1999-06-08 2005-09-30 Valtion Teknillinen Method and apparatus for converting electromagnetic energy of objects
US6650695B1 (en) * 1999-08-03 2003-11-18 Intel Corporation Wireless digital data transmission from a passive transceiver
US7889052B2 (en) 2001-07-10 2011-02-15 Xatra Fund Mx, Llc Authorizing payment subsequent to RF transactions
KR100366268B1 (en) * 2000-07-04 2002-12-31 (주)크레디패스 Passive Identification System
GB2370640A (en) * 2000-08-08 2002-07-03 Transense Technologies Plc SAW device with integral patch antenna
EP1184678A3 (en) * 2000-08-28 2003-01-29 Stanley Electric Co., Ltd. Radar transceiver
US7725427B2 (en) 2001-05-25 2010-05-25 Fred Bishop Recurrent billing maintenance with radio frequency payment devices
US7705732B2 (en) 2001-07-10 2010-04-27 Fred Bishop Authenticating an RF transaction using a transaction counter
US8001054B1 (en) 2001-07-10 2011-08-16 American Express Travel Related Services Company, Inc. System and method for generating an unpredictable number using a seeded algorithm
US9024719B1 (en) 2001-07-10 2015-05-05 Xatra Fund Mx, Llc RF transaction system and method for storing user personal data
US20040236699A1 (en) 2001-07-10 2004-11-25 American Express Travel Related Services Company, Inc. Method and system for hand geometry recognition biometrics on a fob
US9454752B2 (en) 2001-07-10 2016-09-27 Chartoleaux Kg Limited Liability Company Reload protocol at a transaction processing entity
US8279042B2 (en) 2001-07-10 2012-10-02 Xatra Fund Mx, Llc Iris scan biometrics on a payment device
US7249112B2 (en) 2002-07-09 2007-07-24 American Express Travel Related Services Company, Inc. System and method for assigning a funding source for a radio frequency identification device
US7303120B2 (en) * 2001-07-10 2007-12-04 American Express Travel Related Services Company, Inc. System for biometric security using a FOB
US7668750B2 (en) 2001-07-10 2010-02-23 David S Bonalle Securing RF transactions using a transactions counter
US7360689B2 (en) * 2001-07-10 2008-04-22 American Express Travel Related Services Company, Inc. Method and system for proffering multiple biometrics for use with a FOB
US8548927B2 (en) 2001-07-10 2013-10-01 Xatra Fund Mx, Llc Biometric registration for facilitating an RF transaction
US7735725B1 (en) 2001-07-10 2010-06-15 Fred Bishop Processing an RF transaction using a routing number
US9031880B2 (en) 2001-07-10 2015-05-12 Iii Holdings 1, Llc Systems and methods for non-traditional payment using biometric data
US8294552B2 (en) 2001-07-10 2012-10-23 Xatra Fund Mx, Llc Facial scan biometrics on a payment device
US7003167B2 (en) * 2001-11-01 2006-02-21 Hewlett-Packard Development Company, L.P. Single-pass guaranteed-fit data compression using rate feedback
US6856275B1 (en) 2001-12-26 2005-02-15 Raytheon Company Semiconductor article harmonic identification
WO2003065326A2 (en) * 2002-01-31 2003-08-07 Instrumentel Limited Wireless remote control systems
US6970089B2 (en) 2002-07-03 2005-11-29 Battelle Memorial Institute K1-53 Full-spectrum passive communication system and method
US6805287B2 (en) 2002-09-12 2004-10-19 American Express Travel Related Services Company, Inc. System and method for converting a stored value card to a credit card
US7283053B2 (en) * 2003-01-27 2007-10-16 University Of Pittsburgh - Of The Commonwealth System Of Higher Education RFID radio frequency identification or property monitoring method and associated apparatus
AU2003901240A0 (en) 2003-03-17 2003-04-03 Zip Holdings Pty Ltd Memory devices
US7667589B2 (en) * 2004-03-29 2010-02-23 Impinj, Inc. RFID tag uncoupling one of its antenna ports and methods
US7528728B2 (en) * 2004-03-29 2009-05-05 Impinj Inc. Circuits for RFID tags with multiple non-independently driven RF ports
US7423539B2 (en) * 2004-03-31 2008-09-09 Impinj, Inc. RFID tags combining signals received from multiple RF ports
US7394878B2 (en) * 2004-06-28 2008-07-01 X-Cyte, Inc. Digital frequency determining apparatus and methods using matched filters
US7341181B2 (en) * 2004-07-01 2008-03-11 American Express Travel Related Services Company, Inc. Method for biometric security using a smartcard
US7325724B2 (en) 2004-07-01 2008-02-05 American Express Travel Related Services Company, Inc. Method for registering a biometric for use with a smartcard
US7314164B2 (en) 2004-07-01 2008-01-01 American Express Travel Related Services Company, Inc. System for biometric security using a smartcard
US7314165B2 (en) 2004-07-01 2008-01-01 American Express Travel Related Services Company, Inc. Method and system for smellprint recognition biometrics on a smartcard
US7318550B2 (en) 2004-07-01 2008-01-15 American Express Travel Related Services Company, Inc. Biometric safeguard method for use with a smartcard
US7363504B2 (en) 2004-07-01 2008-04-22 American Express Travel Related Services Company, Inc. Method and system for keystroke scan recognition biometrics on a smartcard
US7642898B1 (en) * 2005-02-08 2010-01-05 University Of Central Florida Research Foundation, Inc. Orthogonal frequency coding for surface acoustic wave communication, tag and sensor application
US8308478B2 (en) * 2005-03-01 2012-11-13 Dentsply International Inc. Methods for indirect bonding of orthodontic appliances
US7359823B2 (en) * 2005-05-25 2008-04-15 Avery Dennison RFID device variable test systems and methods
US7259676B2 (en) * 2005-05-31 2007-08-21 Symbol Technologies, Inc. Mode-diversity RFAID tag and interrogator system and method for identifying an RFAID transponder
WO2007105128A1 (en) * 2006-03-10 2007-09-20 Ipico Innovation Inc. System for and method of reading electronic tags
US8131239B1 (en) 2006-08-21 2012-03-06 Vadum, Inc. Method and apparatus for remote detection of radio-frequency devices
WO2008061313A1 (en) * 2006-11-24 2008-05-29 Mems-Id Pty Ltd Tagging methods and apparatus
US8289201B2 (en) 2007-06-06 2012-10-16 The Boeing Company Method and apparatus for using non-linear ground penetrating radar to detect objects located in the ground
US8299924B2 (en) * 2007-06-06 2012-10-30 The Boeing Company Method and apparatus for locating objects using radio frequency identification
US8903669B1 (en) 2009-03-27 2014-12-02 The Boeing Company Multi-band receiver using harmonic synchronous detection
US8275572B2 (en) * 2009-06-10 2012-09-25 The Boeing Company Difference frequency detection with range measurement
GB2478961B (en) * 2010-03-25 2014-06-18 Guidance Ip Ltd Active target with height diversity
WO2014012012A1 (en) * 2012-07-12 2014-01-16 Cornell University Rfid device, methods and applications
RU2522886C2 (en) * 2012-10-26 2014-07-20 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" Multichannel reflecting delay line on surface acoustic waves
US9040920B1 (en) 2013-01-02 2015-05-26 The Boeing Company Optical object detection system
US9197294B2 (en) * 2013-03-12 2015-11-24 Tyco Fire & Security Gmbh Transponder tag with improved tolerance to presence of near-field loading material
US9395434B2 (en) 2013-04-25 2016-07-19 The United States Of America As Represented By The Secretary Of The Army Multitone harmonic radar and method of use
US10203405B2 (en) 2013-04-25 2019-02-12 The United States Of America As Represented By The Secretary Of The Army Multitone radar with range determination and method of use
US9817014B2 (en) 2013-06-03 2017-11-14 Mnemonics, Inc. Saw-based tachometer or RPM detector
US9742441B2 (en) 2013-07-03 2017-08-22 The United States Of America As Represented By The Secretary Of The Navy Apparatus and methods of accessing all channels of a superheterodyne receiver simultaneously
WO2015151836A1 (en) * 2014-03-31 2015-10-08 株式会社村田製作所 Position-detecting system
US9404810B2 (en) 2014-04-16 2016-08-02 Mnemonics, Inc. Wireless surface acoustic wave temperature sensor and interrogation system apparatus capable of generating a self synchronizing shaft position indicator for moving platforms
US9607189B2 (en) 2015-01-14 2017-03-28 Tactilis Sdn Bhd Smart card system comprising a card and a carrier
US10395227B2 (en) 2015-01-14 2019-08-27 Tactilis Pte. Limited System and method for reconciling electronic transaction records for enhanced security
US10037528B2 (en) 2015-01-14 2018-07-31 Tactilis Sdn Bhd Biometric device utilizing finger sequence for authentication
AU2016371057A1 (en) * 2015-12-17 2018-07-19 Humatics Corporation Radio-frequency localization techniques and associated systems, devices, and methods
NO341062B1 (en) 2016-01-14 2017-08-14 Sintef Tto As Semi-passive transponder
US10234543B2 (en) 2016-04-20 2019-03-19 The United States Of America As Represented By The Secretary Of The Army Methods and systems for locating targets using non linear radar with a matched filter which uses exponential value of the transmit signal
US11712637B1 (en) 2018-03-23 2023-08-01 Steven M. Hoffberg Steerable disk or ball
CN116996105A (en) * 2023-07-03 2023-11-03 中国舰船研究设计中心 Aircraft correction instruction transmission link design method based on radio frequency integration

Family Cites Families (147)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2817012A (en) * 1952-02-20 1957-12-17 Gen Railway Signal Co Inductive control system for railroads
US3513470A (en) * 1958-07-07 1970-05-19 Itt Radio transponder
US3025524A (en) * 1959-05-06 1962-03-13 Charles H Thies Calibrated thin metal lamina antenna
US3209350A (en) * 1963-10-04 1965-09-28 Gen Electric Identification interrogation system
US3939463A (en) * 1964-02-05 1976-02-17 The United States Of America As Represented By The Secretary Of The Navy Acoustic transponder navigation system
US3273146A (en) * 1964-08-07 1966-09-13 Gen Electric Object identifying apparatus
GB1206925A (en) * 1968-02-03 1970-09-30 Tokyo Shibaura Electric Co Object identification system
US3600710A (en) * 1968-08-12 1971-08-17 Zenith Radio Corp Acoustic surface wave filter
US3521280A (en) * 1969-01-16 1970-07-21 Gen Res Corp Coded labels
US3665480A (en) * 1969-01-23 1972-05-23 Raytheon Co Annular slot antenna with stripline feed
IL33938A0 (en) 1969-02-26 1970-06-17 Unisearch Ltd An electronic surveillance system
GB1292380A (en) * 1969-04-02 1972-10-11 Unisearch Ltd Electronic surveillance systems
US3706094A (en) * 1970-02-26 1972-12-12 Peter Harold Cole Electronic surveillance system
US4003073A (en) * 1970-06-29 1977-01-11 Motorola, Inc. Integrated circuit device employing metal frame means with preformed conductor means
US3689929A (en) * 1970-11-23 1972-09-05 Howard B Moody Antenna structure
GB1362238A (en) * 1971-07-21 1974-07-30 Mullard Ltd Acoustic surface wave devices
GB1413486A (en) 1972-04-26 1975-11-12 Marconi Co Ltd Oscillators including piezo electric surface wave delay devices
US3870994A (en) * 1972-12-22 1975-03-11 Bendix Corp Geographic addressing by interrogation for controlling airport ground traffic
US3810257A (en) * 1973-02-01 1974-05-07 Texas Instruments Inc Acoustic surface wave transducer configuration for reducing triple transit signals
US3845420A (en) * 1973-03-02 1974-10-29 Raytheon Co Surface acoustic wave phase control device
US4058217A (en) * 1973-05-01 1977-11-15 Unisearch Limited Automatic article sorting system
US3845490A (en) * 1973-05-03 1974-10-29 Gen Electric Stripline slotted balun dipole antenna
GB1435746A (en) * 1973-05-03 1976-05-12 Standard Telephones Cables Ltd Code generator
US3909838A (en) * 1973-08-01 1975-09-30 Signetics Corp Encapsulated integrated circuit and method
US3889258A (en) * 1973-08-22 1975-06-10 Texas Instruments Inc Navigation ranging synchronization
US3878528A (en) * 1973-10-12 1975-04-15 Boeing Co Passive identification system
US4044355A (en) * 1973-11-20 1977-08-23 Saab-Scania Aktiebolag Measurement of contents of tanks etc. with microwave radiations
US3931597A (en) * 1974-02-04 1976-01-06 The Magnavox Company Apparatus and method for phase-encoded surface wave devices
US3936774A (en) * 1974-03-14 1976-02-03 Texas Instruments Incorporated High bulk mode rejection surface wave device
US3898592A (en) * 1974-05-08 1975-08-05 Sperry Rand Corp Acoustic surface wave signal processors
US3886504A (en) 1974-05-20 1975-05-27 Texas Instruments Inc Acoustic surface wave resonator devices
GB1500289A (en) 1974-06-03 1978-02-08 Rca Corp Homodyne communication system
US4166258A (en) * 1974-08-29 1979-08-28 International Business Machines Corporation Thin-film integrated circuit with tank circuit characteristics and applications to thin-film filters and oscillators
CA1047615A (en) * 1974-12-25 1979-01-30 Yasutoshi Komatsu Surface acoustic wave filter
US4001691A (en) * 1975-01-30 1977-01-04 Gruenberg Elliot Communications relay system
US3961293A (en) 1975-02-03 1976-06-01 Texas Instruments Incorporated Multi-resonant surface wave resonator
US3961290A (en) * 1975-02-07 1976-06-01 Texas Instruments Incorporated Programmable phase coded surface wave device
US4042926A (en) * 1975-03-27 1977-08-16 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Automatic transponder
US3981011A (en) * 1975-03-31 1976-09-14 Sperry Rand Corporation Object identification system using an RF roll-call technique
US4023167A (en) * 1975-06-16 1977-05-10 Wahlstrom Sven E Radio frequency detection system and method for passive resonance circuits
GB1513466A (en) * 1975-09-19 1978-06-07 Mullard Ltd Acoustic surface wave devices
US4096477A (en) * 1975-10-06 1978-06-20 Northwestern University Identification system using coded passive transponders
US4059831A (en) * 1975-10-06 1977-11-22 Northwestern University Passive transponders using acoustic surface wave devices
US4069472A (en) * 1975-12-25 1978-01-17 Tokyo Shibaura Electric Co., Ltd. Foreground subject-identifying apparatus
FR2346899A1 (en) * 1976-03-30 1977-10-28 Thomson Csf PROCESS FOR MODIFYING THE INFLUENCE OF TEMPERATURE ON THE PROPAGATION TIME OF ELASTIC SURFACE WAVES AND DEVICE OBTAINED BY LEDIT PROCEDE
FR2343258A1 (en) * 1976-07-01 1977-09-30 Trt Telecom Radio Electr RADIO-ELECTRIC SYSTEM FOR LOCATING A DETERMINED OBJECT
JPS5923123B2 (en) * 1976-08-30 1984-05-31 新日本無線株式会社 Micro stripline antenna device
US4143340A (en) * 1976-09-01 1979-03-06 The Magnavox Company Acoustic surface wave device with improved transducer
US4241352A (en) * 1976-09-15 1980-12-23 Ball Brothers Research Corporation Feed network scanning antenna employing rotating directional coupler
GB1544774A (en) * 1977-01-24 1979-04-25 Secr Defence Radio identification systems
JPS53120295A (en) 1977-03-30 1978-10-20 Toshiba Corp Subject discrimination device
JPS547257A (en) * 1977-06-20 1979-01-19 Hitachi Ltd Elastic surface wave device
US4141712A (en) * 1977-07-18 1979-02-27 Diacon Inc. Manufacturing process for package for electronic devices
US4106020A (en) * 1977-07-21 1978-08-08 Rca Corporation FM-CW Radar ranging system
US4155056A (en) * 1977-08-25 1979-05-15 Bell Telephone Laboratories, Incorporated Cascaded grating resonator filters with external input-output couplers
US4138681A (en) * 1977-08-29 1979-02-06 Motorola, Inc. Portable radio antenna
FR2403689A1 (en) * 1977-09-20 1979-04-13 Thomson Csf SURFACE ELASTIC WAVE DEVICE FOR TREATMENT OF HIGH FREQUENCY SIGNALS
NO146835C (en) * 1977-12-09 1982-12-15 Lintech Instr Ltd PASSIVE TRANSPONDER ELEMENT.
DE2821299A1 (en) * 1978-05-16 1979-11-22 Siemens Ag DEVICE FOR IDENTIFICATION OF OBJECTS AND PERSONS
US4288343A (en) * 1978-07-17 1981-09-08 Beckman Instruments, Inc. Method for increasing shelf-life of a serum bilirubin reference composition and composition produced thereby
US4234666A (en) * 1978-07-26 1980-11-18 Western Electric Company, Inc. Carrier tapes for semiconductor devices
US4213104A (en) * 1978-09-25 1980-07-15 United Technologies Corporation Vacuum encapsulation for surface acoustic wave (SAW) devices
US4263571A (en) * 1978-11-15 1981-04-21 Hitachi, Ltd. Surface acoustic wave filter
US4218680A (en) * 1979-01-12 1980-08-19 Motorola, Inc. Coded coherent transponder
US4242685A (en) * 1979-04-27 1980-12-30 Ball Corporation Slotted cavity antenna
US4259673A (en) * 1979-06-05 1981-03-31 Harold Guretzky Stub matched antenna and method of feeding same
JPS5610725A (en) * 1979-07-09 1981-02-03 Murata Mfg Co Ltd Elastic surface wave device
US4297701A (en) * 1979-08-08 1981-10-27 John D. Angleman Rangefinder using expanded time delay
US5019815A (en) 1979-10-12 1991-05-28 Lemelson Jerome H Radio frequency controlled interrogator-responder system with passive code generator
US4288689A (en) * 1979-10-12 1981-09-08 Lemelson Jerome H Automatic vehicle identification system and method
US4339753A (en) * 1979-12-19 1982-07-13 Rca Corporation Vehicle identification system
US4330790A (en) * 1980-03-24 1982-05-18 National Semiconductor Corporation Tape operated semiconductor device packaging
US4331740A (en) * 1980-04-14 1982-05-25 National Semiconductor Corporation Gang bonding interconnect tape process and structure for semiconductor device automatic assembly
JPS56160102A (en) * 1980-05-13 1981-12-09 Koki Tanaka Folded antenna using coaxial line
US4267534A (en) * 1980-05-23 1981-05-12 Sperry Corporation Surface acoustic wave reflectors with weighted arrays of segmented and non-segmented lineal elements
US4320402A (en) * 1980-07-07 1982-03-16 General Dynamics Corp./Electronics Division Multiple ring microstrip antenna
US4434383A (en) * 1981-02-09 1984-02-28 Motorola Inc. Temperature stable surface acoustic wave device
US4910521A (en) 1981-08-03 1990-03-20 Texas Instruments Incorporated Dual band communication receiver
US4388524A (en) * 1981-09-16 1983-06-14 Walton Charles A Electronic identification and recognition system with code changeable reactance
US4422055A (en) * 1981-10-30 1983-12-20 United Technologies Corporation Strain relief technique for surface acoustic wave devices
US4410823A (en) * 1981-11-13 1983-10-18 Zenith Radio Corporation Surface acoustic wave device employing reflectors
US4423392A (en) * 1981-11-30 1983-12-27 Wolfson Ronald I Dual-mode stripline antenna feed performing multiple angularly separated beams in space
DE3209962A1 (en) * 1982-03-18 1983-09-29 Siemens AG, 1000 Berlin und 8000 München ELECTRONIC COMPONENT WORKING WITH ACOUSTIC SHAFTS
GB2117992B (en) * 1982-03-24 1985-09-18 Philips Electronic Associated Parallel-series acoustic wave device arrangement
US4625184A (en) * 1982-07-02 1986-11-25 Clarion Co., Ltd. Surface acoustic wave device with impedance matching network formed thereon
US4480150A (en) * 1982-07-12 1984-10-30 Motorola Inc. Lead frame and method
US4477813A (en) * 1982-08-11 1984-10-16 Ball Corporation Microstrip antenna system having nonconductively coupled feedline
US4462011A (en) * 1982-12-27 1984-07-24 Lockheed Missiles & Space Company, Inc. Low drift relative phase sensor employing surface acoustic waves
US4706105A (en) * 1983-02-02 1987-11-10 Hitachi, Ltd. Semiconductor device and method of producing the same
US4589422A (en) * 1983-02-04 1986-05-20 National Research Development Corporation Electromagnetic medical applicators
US4642640A (en) * 1983-04-25 1987-02-10 Sensormatic Electronics Corporation Signal receptor-reradiator and surveillance tag using the same
GB2142475A (en) 1983-06-29 1985-01-16 Decca Ltd Wide beam microwave antenna
US4625208A (en) * 1983-06-30 1986-11-25 X-Cyte Inc. Surface acoustic wave passive transponder having acoustic wave reflectors
US4605929A (en) * 1983-06-30 1986-08-12 X-Cyte Inc. Surface acoustic wave passive transponder having optimally-sized transducers
US4604623A (en) * 1983-06-30 1986-08-05 X-Cyte Inc. Surface acoustic wave passive transponder having non-reflective transducers and pads
US4625207A (en) * 1983-06-30 1986-11-25 X-Cyte Inc. Surface acoustic wave passive transponder having amplitude and phase-modifying surface pads
US4620191A (en) * 1983-06-30 1986-10-28 Halvor Skeie Surface acoustic wave passive transponder having parallel acoustic wave paths
US4725841A (en) * 1983-06-30 1988-02-16 X-Cyte, Inc. System for interrogating a passive transponder carrying phase-encoded information
US4623890A (en) * 1983-06-30 1986-11-18 X-Cyte Inc. Apparatus for compensating non-linearities in frequency-modulated signal
US4554549A (en) * 1983-09-19 1985-11-19 Raytheon Company Microstrip antenna with circular ring
US4912471A (en) 1983-11-03 1990-03-27 Mitron Systems Corporation Interrogator-responder communication system
US4644384A (en) * 1984-02-02 1987-02-17 National Semiconductor Corporation Apparatus and method for packaging eprom integrated circuits
DE3512628A1 (en) * 1984-04-11 1985-10-17 Moran, Peter, Cork PACKAGE FOR AN INTEGRATED CIRCUIT
AU568157B2 (en) 1984-10-09 1987-12-17 X-Cyte Inc. Compensating for non-linear frequency variation in a system for interrogating a transponder
AU565454B2 (en) 1984-10-09 1987-09-17 X-Cyte Inc. Saw transponder
AU564509B2 (en) 1984-10-09 1987-08-13 X-Cyte Inc. Phase-encoded transponder interrogation
AU564844B2 (en) 1984-10-09 1987-08-27 X-Cyte Inc. Saw transponder
US4845397A (en) 1984-12-19 1989-07-04 Tektronix, Inc. Constraining mount system for surface acoustic wave devices
US4745401A (en) 1985-09-09 1988-05-17 Minnesota Mining And Manufacturing Company RF reactivatable marker for electronic article surveillance system
JPS6297418A (en) * 1985-10-23 1987-05-06 Clarion Co Ltd Packaging method for surface acoustic wave device
US4734698A (en) * 1985-10-31 1988-03-29 X-Cyte, Inc. Passive interrogator label system having offset compensation and temperature compensation for a surface acoustic wave transponder
US4703327A (en) * 1985-10-31 1987-10-27 X-Cyte, Inc. Interrogator/receiver system for use with a remote transponder
US4724443A (en) * 1985-10-31 1988-02-09 X-Cyte, Inc. Patch antenna with a strip line feed element
US4802216A (en) 1985-11-22 1989-01-31 Allied-Signal Inc. Interrogator and transponder test equipment
US4737790A (en) * 1986-03-03 1988-04-12 X-Cyte, Inc. Passive interrogator label system with a surface acoustic wave transponder operating at its third harmonic and having increased bandwidth
US4786907A (en) 1986-07-14 1988-11-22 Amtech Corporation Transponder useful in a system for identifying objects
US4739328A (en) * 1986-07-14 1988-04-19 Amtech Corporation System for identifying particular objects
US4782345A (en) 1986-07-29 1988-11-01 Amtech Corporation Transponder antenna
US4737789A (en) * 1986-12-02 1988-04-12 X Cyte, Inc. Inductive antenna coupling for a surface acoustic wave transponder
US4800392A (en) 1987-01-08 1989-01-24 Motorola, Inc. Integral laminar antenna and radio housing
AU610927B2 (en) 1987-09-17 1991-05-30 Amalgamated Wireless (Australasia) Limited Electronic tagging system
US4816839A (en) 1987-12-18 1989-03-28 Amtech Corporation Transponder antenna
US4864158A (en) 1988-01-28 1989-09-05 Amtech Corporation Rapid signal validity checking apparatus
US4853705A (en) 1988-05-11 1989-08-01 Amtech Technology Corporation Beam powered antenna
US4942393A (en) 1988-05-27 1990-07-17 Lectron Products, Inc. Passive keyless entry system
JPH0217487A (en) 1988-07-06 1990-01-22 Hitachi Ltd Frequency sensor
US4931664A (en) 1988-08-02 1990-06-05 Gte Products Corporation Controller for coded surface acoustical wave (SAW) security system
US4888591A (en) 1988-10-06 1989-12-19 Amtech Technology Corporation Signal discrimination system
NO169983C (en) 1988-10-27 1992-08-26 Micro Design As PROCEDURE AND DEVICE FOR INDIVIDUAL IDENTIFICATION
US4933588A (en) 1988-12-23 1990-06-12 Raytheon Company Higher order transverse mode suppression in surface acoustic wave resonators
US4999636A (en) 1989-02-17 1991-03-12 Amtech Technology Corporation Range limiting system
US4951057A (en) 1989-11-13 1990-08-21 X-Cyte, Inc. Inductive input/output coupling for a surface acoustic wave device
US5095240A (en) 1989-11-13 1992-03-10 X-Cyte, Inc. Inductively coupled saw device and method for making the same
US5182570A (en) 1989-11-13 1993-01-26 X-Cyte Inc. End fed flat antenna
US5030807A (en) 1990-01-16 1991-07-09 Amtech Corporation System for reading and writing data from and into remote tags
US5055659A (en) 1990-02-06 1991-10-08 Amtech Technology Corp. High speed system for reading and writing data from and into remote tags
US5252962A (en) 1990-08-03 1993-10-12 Bio Medic Data Systems System monitoring programmable implantable transponder
DE4213882A1 (en) 1992-04-28 1993-11-04 Bosch Gmbh Robert DEVICE OF A VEHICLE FOR DATA TRANSFER TO A FIXED BAKE AND COMMUNICATION SYSTEM FORMED WITH IT
NO176900C (en) 1992-07-31 1995-06-14 Micro Design As Procedure for individual identification using electronic interrogation, and an identification tag for the same
US5453748A (en) 1993-11-15 1995-09-26 Westinghouse Norden Systems Method and apparatus for responding to an interrogation signal
US5613197A (en) 1994-11-03 1997-03-18 Hughes Aircraft Co. Multi-channel transponder with channel amplification at a common lower frequency
US5488379A (en) 1995-01-05 1996-01-30 Hughes Aircraft Company Apparatus and method for positioning an antenna in a remote ground terminal
US5761615A (en) 1995-05-31 1998-06-02 Motorola, Inc. Wide band zero if quadrature demodulator using a intermediate frequency and a single local oscillator
US5721783A (en) 1995-06-07 1998-02-24 Anderson; James C. Hearing aid with wireless remote processor
US5596326A (en) 1995-07-17 1997-01-21 Northrop Grumman Corporation Secondary surveillance radar interrogation system using dual frequencies
US5697091A (en) 1996-02-07 1997-12-09 Ford Motor Company Distortion-free chopper-based signal mixer
US5654693A (en) 1996-04-10 1997-08-05 X-Cyte, Inc. Layered structure for a transponder tag

Also Published As

Publication number Publication date
US6060815A (en) 2000-05-09
CA2245373C (en) 2008-04-22

Similar Documents

Publication Publication Date Title
CA2245373A1 (en) Frequency mixing passive transponder
WO2000052840A8 (en) Multi-band transceiver utilizing direct conversion receiver and direct conversion receiver
RU98104139A (en) COMMUNICATION DEVICE FOR RECEIVING COMMUNICATION SIGNALS IN MULTIPLE RADIO FREQUENCY BANDS (OPTIONS) AND METHOD FOR RECEIVING SIGNALS FROM MULTIPLE BANDS
CA2261108A1 (en) Acoustic heterodyne device and method
CA2005725A1 (en) Digital beam forming radar system
WO1998032188A3 (en) Direct digital synthesizer driven phased array antenna
WO2000033612A3 (en) Bending wave acoustic devices
EP1499029A3 (en) Multimode wireless communication system
CA2120057A1 (en) Time Division Duplex Transceiver
CA2379870A1 (en) Testing response of a radio transceiver
TW367663B (en) Circuit for simultaneous frequency doubler and mixer
EP0823788A3 (en) Receiving mixer circuit for mobile radio transceiver designed to operate with multiple modulation modes and multiple frequency bands
CA2227673A1 (en) Transceiver bandwidth extension using double mixing
CA2104729A1 (en) Quadrature Modulation Circuit for Use in a Radio Transmitter
US5734332A (en) Identification device
CA2375291A1 (en) Generation of virtual local oscillator inputs for use in direct conversion radio systems
EP0257687A3 (en) Digital transmission system
JPS55161429A (en) Signal transmitting and receiving system
JPS5692480A (en) Radio wave transmitter
KR970056096A (en) Transceiver for satellite communication system
WO2000045192A3 (en) Receiving device for a radar device and corresponding radar device
DE59507513D1 (en) Radar
JPH02118479A (en) Radar device
JPS5530227A (en) Communication system
KR880005757A (en) receiving set

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20150818