AU2002239251A1 - Method and apparatus for implementing a parallel correlator and applications thereof - Google Patents

Method and apparatus for implementing a parallel correlator and applications thereof

Info

Publication number
AU2002239251A1
AU2002239251A1 AU2002239251A AU3925102A AU2002239251A1 AU 2002239251 A1 AU2002239251 A1 AU 2002239251A1 AU 2002239251 A AU2002239251 A AU 2002239251A AU 3925102 A AU3925102 A AU 3925102A AU 2002239251 A1 AU2002239251 A1 AU 2002239251A1
Authority
AU
Australia
Prior art keywords
implementing
applications
parallel correlator
correlator
parallel
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.)
Abandoned
Application number
AU2002239251A
Other languages
English (en)
Inventor
Michael J. Bultman
Gregory S. Rawlins
Michael W. Rawlins
David F. Sorrells
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.)
ParkerVision Inc
Original Assignee
ParkerVision 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 ParkerVision Inc filed Critical ParkerVision Inc
Publication of AU2002239251A1 publication Critical patent/AU2002239251A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10Complex mathematical operations
    • G06F17/15Correlation function computation including computation of convolution operations
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10Complex mathematical operations
    • G06F17/14Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/141Discrete Fourier transforms
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10Complex mathematical operations
    • G06F17/14Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/147Discrete orthonormal transforms, e.g. discrete cosine transform, discrete sine transform, and variations therefrom, e.g. modified discrete cosine transform, integer transforms approximating the discrete cosine transform

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Computational Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Analysis (AREA)
  • Databases & Information Systems (AREA)
  • Algebra (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Discrete Mathematics (AREA)
  • Computing Systems (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Mobile Radio Communication Systems (AREA)
AU2002239251A 2000-11-14 2001-11-14 Method and apparatus for implementing a parallel correlator and applications thereof Abandoned AU2002239251A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US24800100P 2000-11-14 2000-11-14
US60/248,001 2000-11-14
PCT/US2001/043077 WO2002041494A2 (en) 2000-11-14 2001-11-14 Method and apparatus for implementing a parallel correlator and applications thereof

Publications (1)

Publication Number Publication Date
AU2002239251A1 true AU2002239251A1 (en) 2002-05-27

Family

ID=22937232

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002239251A Abandoned AU2002239251A1 (en) 2000-11-14 2001-11-14 Method and apparatus for implementing a parallel correlator and applications thereof

Country Status (3)

Country Link
US (3) US7010559B2 (US07233969-20070619-P00001.png)
AU (1) AU2002239251A1 (US07233969-20070619-P00001.png)
WO (1) WO2002041494A2 (US07233969-20070619-P00001.png)

Families Citing this family (83)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6061551A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
US7515896B1 (en) 1998-10-21 2009-04-07 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US6542722B1 (en) * 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
US7236754B2 (en) 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
US6813485B2 (en) * 1998-10-21 2004-11-02 Parkervision, Inc. Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same
US7039372B1 (en) 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
US6853690B1 (en) 1999-04-16 2005-02-08 Parkervision, Inc. Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments
US6879817B1 (en) * 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
US7110435B1 (en) * 1999-03-15 2006-09-19 Parkervision, Inc. Spread spectrum applications of universal frequency translation
US7065162B1 (en) 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
US7110444B1 (en) 1999-08-04 2006-09-19 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
US7010286B2 (en) 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
US6674818B1 (en) 2000-04-17 2004-01-06 Rf Micro Devices, Inc. Reduced complexity decision circuitry
US6661834B1 (en) 2000-04-17 2003-12-09 Rf Micro Devices, Inc. Carrier recovery for spread spectrum communications
US6693954B1 (en) * 2000-04-17 2004-02-17 Rf Micro Devices, Inc. Apparatus and method of early-late symbol tracking for a complementary code keying receiver
US7454453B2 (en) * 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
US7010559B2 (en) * 2000-11-14 2006-03-07 Parkervision, Inc. Method and apparatus for a parallel correlator and applications thereof
EP1207657B1 (en) * 2000-11-20 2007-10-31 Lucent Technologies Inc. Detection method and apparatus for phase-modulated CCK symbols with a correlator-bank
US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
US7324433B1 (en) 2001-11-29 2008-01-29 Marvell International Ltd. Method and apparatus for determining signal quality
US7321640B2 (en) * 2002-06-07 2008-01-22 Parkervision, Inc. Active polyphase inverter filter for quadrature signal generation
US7379883B2 (en) 2002-07-18 2008-05-27 Parkervision, Inc. Networking methods and systems
US7460584B2 (en) 2002-07-18 2008-12-02 Parkervision, Inc. Networking methods and systems
WO2004019579A1 (en) * 2002-08-13 2004-03-04 Vanu, Inc. Noise-adaptive decoding
JP3751600B2 (ja) * 2003-03-27 2006-03-01 株式会社東芝 受信装置及び受信方法
US7324609B1 (en) * 2003-11-05 2008-01-29 Advanced Micro Devices, Inc. DC offset cancellation in a direct conversion receiver configured for receiving an OFDM signal
US7630457B2 (en) * 2003-12-18 2009-12-08 Freescale Semiconductor, Inc. Method and apparatus for demodulating a received signal within a coded system
US20050141784A1 (en) * 2003-12-31 2005-06-30 Ferriz Rafael M. Image scaling using an array of processing elements
WO2005086709A2 (en) * 2004-03-05 2005-09-22 Vanu, Inc. Controlling jitter effects
US7330522B2 (en) * 2004-04-07 2008-02-12 Integrated System Solution Corp. Complementary code keying (CCK) sequentially decoding apparatus and process thereof
KR100688086B1 (ko) * 2004-12-13 2007-03-02 한국전자통신연구원 상관 계수의 대칭성을 이용한 상관 장치 및 그 방법
US7312700B2 (en) * 2005-01-26 2007-12-25 Broadcom Corporation GPS enabled cell phone with common interest alerts
US7606292B1 (en) * 2005-05-24 2009-10-20 L-3 Communications Corporation Sub-sequence accumulation filter and method
US20070038560A1 (en) * 2005-08-12 2007-02-15 Carl Ansley Transaction payment system and processing
US20080140468A1 (en) * 2006-12-06 2008-06-12 International Business Machines Corporation Complex exponential smoothing for identifying patterns in business data
DE102007002230A1 (de) * 2007-01-10 2008-07-17 Benecke-Kaliko Ag Thermoplastische Folie
US8312551B2 (en) * 2007-02-15 2012-11-13 Harris Corporation Low level sequence as an anti-tamper Mechanism
US7937427B2 (en) * 2007-04-19 2011-05-03 Harris Corporation Digital generation of a chaotic numerical sequence
US7921145B2 (en) * 2007-05-22 2011-04-05 Harris Corporation Extending a repetition period of a random sequence
US8611530B2 (en) * 2007-05-22 2013-12-17 Harris Corporation Encryption via induced unweighted errors
US7995757B2 (en) 2007-05-31 2011-08-09 Harris Corporation Closed galois field combination
US7970809B2 (en) * 2007-06-07 2011-06-28 Harris Corporation Mixed radix conversion with a priori defined statistical artifacts
US7962540B2 (en) * 2007-06-07 2011-06-14 Harris Corporation Mixed radix number generator with chosen statistical artifacts
US7974413B2 (en) * 2007-06-07 2011-07-05 Harris Corporation Spread spectrum communications system and method utilizing chaotic sequence
US8005221B2 (en) * 2007-08-01 2011-08-23 Harris Corporation Chaotic spread spectrum communications system receiver
US7995749B2 (en) * 2007-10-30 2011-08-09 Harris Corporation Cryptographic system configured for extending a repetition period of a random sequence
US8180055B2 (en) * 2008-02-05 2012-05-15 Harris Corporation Cryptographic system incorporating a digitally generated chaotic numerical sequence
US8363830B2 (en) 2008-02-07 2013-01-29 Harris Corporation Cryptographic system configured to perform a mixed radix conversion with a priori defined statistical artifacts
US8040937B2 (en) * 2008-03-26 2011-10-18 Harris Corporation Selective noise cancellation of a spread spectrum signal
US8139764B2 (en) * 2008-05-06 2012-03-20 Harris Corporation Closed galois field cryptographic system
US8320557B2 (en) 2008-05-08 2012-11-27 Harris Corporation Cryptographic system including a mixed radix number generator with chosen statistical artifacts
US8145692B2 (en) * 2008-05-29 2012-03-27 Harris Corporation Digital generation of an accelerated or decelerated chaotic numerical sequence
US8200728B2 (en) * 2008-05-29 2012-06-12 Harris Corporation Sine/cosine generator
US8064552B2 (en) * 2008-06-02 2011-11-22 Harris Corporation Adaptive correlation
US8068571B2 (en) * 2008-06-12 2011-11-29 Harris Corporation Featureless coherent chaotic amplitude modulation
US8228971B2 (en) * 2008-07-29 2012-07-24 Agere Systems Inc. Technique for searching for a preamble signal in a spread spectrum signal using a fast Hadamard transform
US8325702B2 (en) * 2008-08-29 2012-12-04 Harris Corporation Multi-tier ad-hoc network in which at least two types of non-interfering waveforms are communicated during a timeslot
US8165065B2 (en) * 2008-10-09 2012-04-24 Harris Corporation Ad-hoc network acquisition using chaotic sequence spread waveform
US8351484B2 (en) * 2008-12-29 2013-01-08 Harris Corporation Communications system employing chaotic spreading codes with static offsets
US8406276B2 (en) * 2008-12-29 2013-03-26 Harris Corporation Communications system employing orthogonal chaotic spreading codes
US8457077B2 (en) * 2009-03-03 2013-06-04 Harris Corporation Communications system employing orthogonal chaotic spreading codes
US8509284B2 (en) * 2009-06-08 2013-08-13 Harris Corporation Symbol duration dithering for secured chaotic communications
US8428102B2 (en) * 2009-06-08 2013-04-23 Harris Corporation Continuous time chaos dithering
US8428103B2 (en) * 2009-06-10 2013-04-23 Harris Corporation Discrete time chaos dithering
US8406352B2 (en) * 2009-07-01 2013-03-26 Harris Corporation Symbol estimation for chaotic spread spectrum signal
US8340295B2 (en) * 2009-07-01 2012-12-25 Harris Corporation High-speed cryptographic system using chaotic sequences
US8379689B2 (en) * 2009-07-01 2013-02-19 Harris Corporation Anti-jam communications having selectively variable peak-to-average power ratio including a chaotic constant amplitude zero autocorrelation waveform
US8363700B2 (en) 2009-07-01 2013-01-29 Harris Corporation Rake receiver for spread spectrum chaotic communications systems
US8428104B2 (en) 2009-07-01 2013-04-23 Harris Corporation Permission-based multiple access communications systems
US8385385B2 (en) * 2009-07-01 2013-02-26 Harris Corporation Permission-based secure multiple access communication systems
US8369376B2 (en) * 2009-07-01 2013-02-05 Harris Corporation Bit error rate reduction in chaotic communications
US8848909B2 (en) * 2009-07-22 2014-09-30 Harris Corporation Permission-based TDMA chaotic communication systems
US8369377B2 (en) * 2009-07-22 2013-02-05 Harris Corporation Adaptive link communications using adaptive chaotic spread waveform
US8345725B2 (en) 2010-03-11 2013-01-01 Harris Corporation Hidden Markov Model detection for spread spectrum waveforms
CN102291167B (zh) * 2011-08-05 2018-06-15 中兴通讯股份有限公司 一种性能测试方法和系统
US10043535B2 (en) 2013-01-15 2018-08-07 Staton Techiya, Llc Method and device for spectral expansion for an audio signal
US10045135B2 (en) 2013-10-24 2018-08-07 Staton Techiya, Llc Method and device for recognition and arbitration of an input connection
US10043534B2 (en) 2013-12-23 2018-08-07 Staton Techiya, Llc Method and device for spectral expansion for an audio signal
EP3616326A4 (en) 2017-04-24 2021-01-06 Chaos Prime, Inc. COMMUNICATION SYSTEM USING FREQUENCY-SHIFT MODULATION SPREAD SIGNALS BASED ON A CHAOTIC SEQUENCE
US10911095B2 (en) 2017-08-31 2021-02-02 Tokay Systems Llc Fallthrough correlation techniques for arbitrary-phase spread spectrum waveforms

Family Cites Families (276)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2057613A (en) 1932-07-28 1936-10-13 Gen Electric Diversity factor receiving system
US2241078A (en) 1937-11-01 1941-05-06 Frederick K Vreeland Multiplex communication
US2283575A (en) 1938-04-19 1942-05-19 Rca Corp High frequency transmission system
GB519264A (en) * 1938-10-10 1940-03-20 Philips Nv Improvements in or relating to multi-carrier transmission systems
GB556208A (en) 1941-04-25 1943-09-24 Standard Telephones Cables Ltd Arrangement for conversion of frequency modulation to phase modulation and the application thereof to the production of a frequency modulated wave from a frequency stable oscillator
US2462069A (en) * 1942-05-07 1949-02-22 Int Standard Electric Corp Radio communication system
US2410350A (en) 1943-02-06 1946-10-29 Standard Telephones Cables Ltd Method and means for communication
US2472798A (en) 1943-11-29 1949-06-14 Rca Corp Low-pass filter system
US2462181A (en) * 1944-09-28 1949-02-22 Western Electric Co Radio transmitting system
US2451430A (en) 1946-04-23 1948-10-12 Jefferson Standard Broadcastin Carrier frequency shift signaling
BE473802A (US07233969-20070619-P00001.png) 1946-08-20
GB651011A (en) * 1947-04-22 1951-03-07 Ericsson Telefon Ab L M Improvements in modulation devices particularly for wide frequency bands
US2497859A (en) * 1947-11-19 1950-02-21 Western Union Telegraph Co Frequency diversity telegraph system
US2802208A (en) 1952-06-25 1957-08-06 Charles F Hobbs Radio frequency multiplexing
US2985875A (en) 1958-02-12 1961-05-23 Marconi Wireless Telegraph Co Radio communication systems
US3069679A (en) 1959-04-22 1962-12-18 Westinghouse Electric Corp Multiplex communication systems
NL257346A (US07233969-20070619-P00001.png) * 1959-10-30
US3246084A (en) 1960-08-26 1966-04-12 Bolt Beranek & Newman Method of and apparatus for speech compression and the like
US3114106A (en) 1960-11-23 1963-12-10 Mcmauus Robert Paul Frequency diversity system
US3023309A (en) * 1960-12-19 1962-02-27 Bell Telephone Labor Inc Communication system
US3104393A (en) 1961-10-18 1963-09-17 Joseph H Vogelman Method and apparatus for phase and amplitude control in ionospheric communications systems
US3226643A (en) 1962-01-08 1965-12-28 Avco Corp Command communication system of the rectangular wave type
US3258694A (en) 1964-01-03 1966-06-28 Multi-channel p.m. transmitter with automatic modulation index control
US3384822A (en) 1964-03-21 1968-05-21 Nippon Electric Co Frequency-shift-keying phase-modulation code transmission system
US3383598A (en) 1965-02-15 1968-05-14 Space General Corp Transmitter for multiplexed phase modulated singaling system
FR1504609A (fr) 1966-09-21 1967-12-08 Ibm France Système de transmission de données
US3555428A (en) * 1966-10-03 1971-01-12 Xerox Corp Fsk receiver for detecting a data signal with the same number of cycles of each carrier frequency
US3454718A (en) 1966-10-03 1969-07-08 Xerox Corp Fsk transmitter with transmission of the same number of cycles of each carrier frequency
US3617892A (en) 1967-02-27 1971-11-02 Rca Corp Frequency modulation system for spreading radiated power
NL6706736A (US07233969-20070619-P00001.png) 1967-05-13 1968-11-14 Philips Nv
CH497089A (de) 1968-07-26 1970-09-30 Autophon Ag Anlage zur Übermittlung von kontinuierlichen Signalen
US3629696A (en) 1968-08-06 1971-12-21 Northeast Electronics Corp Method and apparatus for measuring delay distortion including simultaneously applied modulated signals
US3614627A (en) 1968-10-15 1971-10-19 Data Control Systems Inc Universal demodulation system
US3548342A (en) 1968-10-15 1970-12-15 Ibm Digitally controlled amplitude modulation circuit
US3614630A (en) 1969-02-04 1971-10-19 Develco Radio frequency standard and voltage controlled oscillator
US3626417A (en) 1969-03-07 1971-12-07 Everett A Gilbert Hybrid frequency shift-amplitude modulated tone system
FR2040580A5 (US07233969-20070619-P00001.png) * 1969-04-03 1971-01-22 Inst Francais Du Petrole
US3617898A (en) 1969-04-09 1971-11-02 Eugene A Janning Jr Orthogonal passive frequency converter with control port and signal port
US3643168A (en) * 1969-07-07 1972-02-15 Standard Kallsman Ind Inc Solid-state tuned uhf television tuner
US3767984A (en) 1969-09-03 1973-10-23 Nippon Electric Co Schottky barrier type field effect transistor
US3623160A (en) 1969-09-17 1971-11-23 Sanders Associates Inc Data modulator employing sinusoidal synthesis
DE1962156A1 (US07233969-20070619-P00001.png) 1969-12-11 1971-02-11
US3641442A (en) * 1970-06-25 1972-02-08 Hughes Aircraft Co Digital frequency synthesizer
US3621402A (en) 1970-08-03 1971-11-16 Bell Telephone Labor Inc Sampled data filter
US3689841A (en) 1970-10-23 1972-09-05 Signatron Communication system for eliminating time delay effects when used in a multipath transmission medium
US3702440A (en) 1970-11-16 1972-11-07 Motorola Inc Selective calling system providing an increased number of calling codes or auxiliary information transfer
US3662268A (en) 1970-11-17 1972-05-09 Bell Telephone Labor Inc Diversity communication system using distinct spectral arrangements for each branch
US3694754A (en) 1970-12-28 1972-09-26 Tracor Suppression of electrostatic noise in antenna systems
US3716730A (en) * 1971-04-19 1973-02-13 Motorola Inc Intermodulation rejection capabilities of field-effect transistor radio frequency amplifiers and mixers
US3714577A (en) * 1971-05-06 1973-01-30 W Hayes Single sideband am-fm modulation system
US3735048A (en) 1971-05-28 1973-05-22 Motorola Inc In-band data transmission system
US3719903A (en) 1971-06-25 1973-03-06 Bell Telephone Labor Inc Double sideband modem with either suppressed or transmitted carrier
US3736513A (en) 1971-06-28 1973-05-29 Warwick Electronics Inc Receiver tuning system
US3806811A (en) 1972-01-20 1974-04-23 Gte Sylvania Inc Multiple carrier phase modulated signal generating apparatus
US3764921A (en) 1972-10-27 1973-10-09 Control Data Corp Sample and hold circuit
US3991277A (en) 1973-02-15 1976-11-09 Yoshimutsu Hirata Frequency division multiplex system using comb filters
US3852530A (en) 1973-03-19 1974-12-03 M Shen Single stage power amplifiers for multiple signal channels
US3868601A (en) * 1973-06-18 1975-02-25 Us Navy Digital single-sideband modulator
US4066841A (en) * 1974-01-25 1978-01-03 Serck Industries Limited Data transmitting systems
US3949300A (en) 1974-07-03 1976-04-06 Sadler William S Emergency radio frequency warning device
JPS5113208U (US07233969-20070619-P00001.png) 1974-07-17 1976-01-30
US3967202A (en) 1974-07-25 1976-06-29 Northern Illinois Gas Company Data transmission system including an RF transponder for generating a broad spectrum of intelligence bearing sidebands
NL168099C (nl) * 1974-09-12 1982-02-16 Philips Nv Modulatie- en filterinrichting voor digitale signalen.
US4035732A (en) 1974-10-03 1977-07-12 The United States Of America As Represented By The Secretary Of The Army High dynamic range receiver front end mixer requiring low local oscillator injection power
US3980945A (en) 1974-10-07 1976-09-14 Raytheon Company Digital communications system with immunity to frequency selective fading
US3940697A (en) * 1974-12-02 1976-02-24 Hy-Gain Electronics Corporation Multiple band scanning radio
US3987280A (en) 1975-05-21 1976-10-19 The United States Of America As Represented By The Secretary Of The Navy Digital-to-bandpass converter
US4017798A (en) 1975-09-08 1977-04-12 Ncr Corporation Spread spectrum demodulator
US4013966A (en) 1975-10-16 1977-03-22 The United States Of America As Represented By The Secretary Of The Navy Fm rf signal generator using step recovery diode
US4047121A (en) 1975-10-16 1977-09-06 The United States Of America As Represented By The Secretary Of The Navy RF signal generator
US4019140A (en) 1975-10-24 1977-04-19 Bell Telephone Laboratories, Incorporated Methods and apparatus for reducing intelligible crosstalk in single sideband radio systems
US4045740A (en) 1975-10-28 1977-08-30 The United States Of America As Represented By The Secretary Of The Army Method for optimizing the bandwidth of a radio receiver
JPS5823978B2 (ja) * 1975-11-11 1983-05-18 ソニー株式会社 チユ−ナ
JPS5826699B2 (ja) 1975-11-13 1983-06-04 ソニー株式会社 チユ−ナ
US4032847A (en) 1976-01-05 1977-06-28 Raytheon Company Distortion adapter receiver having intersymbol interference correction
US4066919A (en) * 1976-04-01 1978-01-03 Motorola, Inc. Sample and hold circuit
JPS52141113A (en) * 1976-05-19 1977-11-25 Nippon Telegr & Teleph Corp <Ntt> Transmission diversity system
US4048598A (en) 1976-05-28 1977-09-13 Rca Corporation Uhf tuning circuit utilizing a varactor diode
NL175575C (nl) 1976-05-28 1984-11-16 Philips Nv Filter- en demodulatie-inrichting.
US4081748A (en) 1976-07-01 1978-03-28 Northern Illinois Gas Company Frequency/space diversity data transmission system
US4080573A (en) 1976-07-16 1978-03-21 Motorola, Inc. Balanced mixer using complementary devices
US4051475A (en) 1976-07-21 1977-09-27 The United States Ofamerica As Represented By The Secretary Of The Army Radio receiver isolation system
JPS5914939B2 (ja) 1976-09-30 1984-04-06 日本電気株式会社 搬送波再生装置
JPS53140962A (en) * 1977-05-16 1978-12-08 Hitachi Denshi Ltd Electronic switch circuit
US4145659A (en) * 1977-05-25 1979-03-20 General Electric Company UHF electronic tuner
US4130765A (en) 1977-05-31 1978-12-19 Rafi Arakelian Low supply voltage frequency multiplier with common base transistor amplifier
US4346477A (en) 1977-08-01 1982-08-24 E-Systems, Inc. Phase locked sampling radio receiver
JPS5461822A (en) 1977-10-27 1979-05-18 Sony Corp Transmitter circuit
US4170764A (en) 1978-03-06 1979-10-09 Bell Telephone Laboratories, Incorporated Amplitude and frequency modulation system
DE2813946C2 (de) * 1978-03-31 1980-01-31 Siemens Ag, 1000 Berlin Und 8000 Muenchen Filterschaltung mit einer biquadratischen Übertragungsfunktion
US4204171A (en) 1978-05-30 1980-05-20 Rca Corporation Filter which tracks changing frequency of input signal
US4241451A (en) 1978-06-26 1980-12-23 Rockwell International Corporation Single sideband signal demodulator
US4193036A (en) * 1978-07-03 1980-03-11 Motorola, Inc. Balanced active mixer circuit
US4210872A (en) 1978-09-08 1980-07-01 American Microsystems, Inc. High pass switched capacitor filter section
US4308614A (en) 1978-10-26 1981-12-29 Fisher Charles B Noise-reduction sampling system
US4253067A (en) * 1978-12-11 1981-02-24 Rockwell International Corporation Baseband differentially phase encoded radio signal detector
US4389579A (en) 1979-02-13 1983-06-21 Motorola, Inc. Sample and hold circuit
DE2921219C2 (de) * 1979-05-25 1986-12-04 Blaupunkt-Werke Gmbh, 3200 Hildesheim HF-Empfangsstufe für Fernsehgeräte
US4250458A (en) * 1979-05-31 1981-02-10 Digital Communications Corporation Baseband DC offset detector and control circuit for DC coupled digital demodulator
US4320361A (en) 1979-07-20 1982-03-16 Marconi Instruments Limited Amplitude and frequency modulators using a switchable component controlled by data signals
US4245355A (en) * 1979-08-08 1981-01-13 Eaton Corporation Microwave frequency converter
US4320536A (en) 1979-09-18 1982-03-16 Dietrich James L Subharmonic pumped mixer circuit
JPS5648732A (en) 1979-09-28 1981-05-02 Nec Corp Radio equipment
FR2471081B1 (fr) 1979-11-30 1986-05-30 Thomson Csf Filtre a capacites commutees a transfert de charges
US4286283A (en) 1979-12-20 1981-08-25 Rca Corporation Transcoder
US4356558A (en) 1979-12-20 1982-10-26 Martin Marietta Corporation Optimum second order digital filter
US4370572A (en) * 1980-01-17 1983-01-25 Trw Inc. Differential sample-and-hold circuit
FR2474791A1 (fr) 1980-01-29 1981-07-31 Thomson Csf Systeme de transmission radioelectrique en diversite, de structure simple et economique, et reseau de telecommunication comportant de tels systemes
DE3016082C2 (de) * 1980-04-25 1982-10-21 Siemens AG, 1000 Berlin und 8000 München Aus CTD-Elementen bestehende, mit einer vorgebbaren Abtast- und Taktfrequenz f &darr;T&darr; betriebene elektrische Filterschaltung
US4253066A (en) * 1980-05-13 1981-02-24 Fisher Charles B Synchronous detection with sampling
US4334324A (en) 1980-10-31 1982-06-08 Rca Corporation Complementary symmetry FET frequency converter circuits
US4360867A (en) 1980-12-08 1982-11-23 Bell Telephone Laboratories, Incorporated Broadband frequency multiplication by multitransition operation of step recovery diode
GB2094080B (en) * 1981-02-18 1984-11-07 Sony Corp Automatic fine tuning circuits for television receivers
US4384357A (en) 1981-04-03 1983-05-17 Canadian Patens & Development Limited Self-synchronization circuit for a FFSK or MSK demodulator
US4380828A (en) * 1981-05-26 1983-04-19 Zenith Radio Corporation UHF MOSFET Mixer
US4591930A (en) * 1983-09-23 1986-05-27 Eastman Kodak Company Signal processing for high resolution electronic still camera
US4660164A (en) * 1983-12-05 1987-04-21 The United States Of America As Represented By The Secretary Of The Navy Multiplexed digital correlator
US4563773A (en) * 1984-03-12 1986-01-07 The United States Of America As Represented By The Secretary Of The Army Monolithic planar doped barrier subharmonic mixer
US4725041A (en) * 1984-04-16 1988-02-16 Colt Industries Inc Fuel injection apparatus and system
US4893316A (en) * 1985-04-04 1990-01-09 Motorola, Inc. Digital radio frequency receiver
DE3516492A1 (de) * 1985-05-08 1986-11-13 Standard Elektrik Lorenz Ag, 7000 Stuttgart Funkempfaenger
DE3674096D1 (de) * 1985-07-03 1990-10-18 Siemens Ag Digitale filterweiche, insbesondere fuer einen datenempfaenger.
US4634998A (en) * 1985-07-17 1987-01-06 Hughes Aircraft Company Fast phase-lock frequency synthesizer with variable sampling efficiency
US4740792A (en) * 1986-08-27 1988-04-26 Hughes Aircraft Company Vehicle location system
JPS6369099A (ja) * 1986-09-10 1988-03-29 Yamaha Corp サンプルホ−ルド回路
US4811422A (en) * 1986-12-22 1989-03-07 Kahn Leonard R Reduction of undesired harmonic components
US4806790A (en) * 1987-02-16 1989-02-21 Nec Corporation Sample-and-hold circuit
FR2612018B1 (fr) * 1987-03-06 1989-05-26 Labo Electronique Physique Melangeur hyperfrequences
US4814649A (en) * 1987-12-18 1989-03-21 Rockwell International Corporation Dual gate FET mixing apparatus with feedback means
US4995055A (en) * 1988-06-16 1991-02-19 Hughes Aircraft Company Time shared very small aperture satellite terminals
US4893341A (en) * 1989-08-01 1990-01-09 At&E Corporation Digital receiver operating at sub-nyquist sampling rate
SE463540B (sv) * 1988-09-19 1990-12-03 Ericsson Telefon Ab L M Saett foer att i ett radiokommunikationssystem digitalisera godtyckliga radiosignaler samt anordning foer utoevande av saettet
US4894766A (en) * 1988-11-25 1990-01-16 Hazeltine Corporation Power supply frequency converter
JP2576612B2 (ja) * 1988-12-28 1997-01-29 日本ビクター株式会社 信号変換装置
US5006854A (en) * 1989-02-13 1991-04-09 Silicon Systems, Inc. Method and apparatus for converting A/D nonlinearities to random noise
US4896152A (en) * 1989-03-02 1990-01-23 General Electric Company Telemetry system with a sending station using recursive filter for bandwidth limiting
US4902979A (en) * 1989-03-10 1990-02-20 General Electric Company Homodyne down-converter with digital Hilbert transform filtering
CA2014916C (en) * 1989-04-20 1994-11-08 Yoichiro Minami Direct conversion receiver with dithering local carrier frequency for detecting transmitted carrier frequency
US4931716A (en) * 1989-05-05 1990-06-05 Milan Jovanovic Constant frequency zero-voltage-switching multi-resonant converter
EP0401771B1 (de) * 1989-06-09 1995-09-20 TEMIC TELEFUNKEN microelectronic GmbH Schaltungsanordnung zur Frequenzumsetzung
DE3925329A1 (de) * 1989-07-31 1991-02-07 Siemens Ag Schaltungsanordnung zum regeln der amplitude von videosignalen
US4982353A (en) * 1989-09-28 1991-01-01 General Electric Company Subsampling time-domain digital filter using sparsely clocked output latch
US5191459A (en) * 1989-12-04 1993-03-02 Scientific-Atlanta, Inc. Method and apparatus for transmitting broadband amplitude modulated radio frequency signals over optical links
US5239496A (en) * 1989-12-27 1993-08-24 Nynex Science & Technology, Inc. Digital parallel correlator
KR960000775B1 (ko) * 1990-10-19 1996-01-12 닛본덴기 가부시끼가이샤 고주파 전력 증폭기의 출력레벨 제어회로
US5083050A (en) * 1990-11-30 1992-01-21 Grumman Aerospace Corporation Modified cascode mixer circuit
US5140699A (en) * 1990-12-24 1992-08-18 American Nucleonics Corporation Detector DC offset compensator
US5287516A (en) * 1991-01-10 1994-02-15 Landis & Gyr Betriebs Ag Demodulation process for binary data
US5278826A (en) * 1991-04-11 1994-01-11 Usa Digital Radio Method and apparatus for digital audio broadcasting and reception
US5131014A (en) * 1991-04-19 1992-07-14 General Instrument Corporation Apparatus and method for recovery of multiphase modulated data
US5239687A (en) * 1991-05-06 1993-08-24 Chen Shih Chung Wireless intercom having a transceiver in which a bias current for the condenser microphone and the driving current for the speaker are used to charge a battery during transmission and reception, respectively
US5218562A (en) * 1991-09-30 1993-06-08 American Neuralogix, Inc. Hamming data correlator having selectable word-length
FR2682841B1 (fr) * 1991-10-21 1993-11-19 Alcatel Telspace Procede de detection de faux accrochages d'un signal de reference sur un signal initialement module en modulation numerique plurivalente decalee, procede de demodulation numerique coherente l'utilisant.
JP2897795B2 (ja) * 1991-10-31 1999-05-31 日本電気株式会社 サンプルホールド型位相比較回路
JP2842725B2 (ja) * 1992-02-17 1999-01-06 日本電気株式会社 ディジタル・アナログ変換器
US5282222A (en) * 1992-03-31 1994-01-25 Michel Fattouche Method and apparatus for multiple access between transceivers in wireless communications using OFDM spread spectrum
US5535402A (en) * 1992-04-30 1996-07-09 The United States Of America As Represented By The Secretary Of The Navy System for (N•M)-bit correlation using N M-bit correlators
US5282023A (en) * 1992-05-14 1994-01-25 Hitachi America, Ltd. Apparatus for NTSC signal interference cancellation through the use of digital recursive notch filters
JP3174340B2 (ja) * 1992-06-08 2001-06-11 モトローラ・インコーポレイテッド 受信機の自動利得制御装置
US5493581A (en) * 1992-08-14 1996-02-20 Harris Corporation Digital down converter and method
US5390215A (en) * 1992-10-13 1995-02-14 Hughes Aircraft Company Multi-processor demodulator for digital cellular base station employing partitioned demodulation procedure with pipelined execution
US5390364A (en) * 1992-11-02 1995-02-14 Harris Corporation Least-mean squares adaptive digital filter havings variable size loop bandwidth
DE4237692C1 (de) * 1992-11-07 1994-03-03 Grundig Emv Empfänger für ein digitales Rundfunksignal
JP3111425B2 (ja) * 1992-11-18 2000-11-20 株式会社鷹山 フィルタ回路
DE69420981T2 (de) * 1993-01-08 2000-04-06 Sony Corp Integrierte monolithische Mikrowellenschaltung
WO1994019892A1 (en) * 1993-02-17 1994-09-01 Motorola Inc. Multiple-modulation communication system
US5389839A (en) * 1993-03-03 1995-02-14 Motorola, Inc. Integratable DC blocking circuit
US5495200A (en) * 1993-04-06 1996-02-27 Analog Devices, Inc. Double sampled biquad switched capacitor filter
FR2705176B1 (fr) * 1993-05-12 1995-07-21 Suisse Electronique Microtech Recepteur radio fm comprenant un circuit de surechantillonnage.
JP2912791B2 (ja) * 1993-06-01 1999-06-28 松下電器産業株式会社 高周波受信装置
CA2120077A1 (en) * 1993-06-17 1994-12-18 Louis Labreche System and method for modulating a carrier frequency
US5495202A (en) * 1993-06-30 1996-02-27 Hughes Aircraft Company High spectral purity digital waveform synthesizer
US5490173A (en) * 1993-07-02 1996-02-06 Ford Motor Company Multi-stage digital RF translator
FI107855B (fi) * 1993-09-10 2001-10-15 Nokia Mobile Phones Ltd Vt-signaalin demodulointi sigma-delta-muuntimella
US5481570A (en) * 1993-10-20 1996-01-02 At&T Corp. Block radio and adaptive arrays for wireless systems
KR100217715B1 (ko) * 1993-12-31 1999-09-01 윤종용 직접확산/부호분할 다중접근 시스템에서의 업-링크 접근 시스템
US5483600A (en) * 1994-02-14 1996-01-09 Aphex Systems, Ltd. Wave dependent compressor
US5483549A (en) * 1994-03-04 1996-01-09 Stanford Telecommunications, Inc. Receiver having for charge-coupled-device based receiver signal processing
AT410047B (de) * 1994-03-31 2003-01-27 Arbitron Co Vorrichtung und verfahren zum einfügen von kodes in audiosignale und zum dekodieren
US5495500A (en) * 1994-08-09 1996-02-27 Intermec Corporation Homodyne radio architecture for direct sequence spread spectrum data reception
US5604592A (en) * 1994-09-19 1997-02-18 Textron Defense Systems, Division Of Avco Corporation Laser ultrasonics-based material analysis system and method using matched filter processing
US5757299A (en) * 1994-09-30 1998-05-26 Yamaha Corporation Analog-Digital converter using delta sigma modulation digital filtering, and gain-scaling
US5724041A (en) * 1994-11-24 1998-03-03 The Furukawa Electric Co., Ltd. Spread spectrum radar device using pseudorandom noise signal for detection of an object
US5714910A (en) * 1994-12-19 1998-02-03 Efratom Time And Frequency Products, Inc. Methods and apparatus for digital frequency generation in atomic frequency standards
ES2184833T3 (es) * 1995-02-21 2003-04-16 Tait Electronics Ltd Receptor de frecuencia intermedia nula.
US5606731A (en) * 1995-03-07 1997-02-25 Motorola, Inc. Zerox-IF receiver with tracking second local oscillator and demodulator phase locked loop oscillator
US5483193A (en) * 1995-03-24 1996-01-09 Ford Motor Company Circuit for demodulating FSK signals
US6014176A (en) * 1995-06-21 2000-01-11 Sony Corporation Automatic phase control apparatus for phase locking the chroma burst of analog and digital video data using a numerically controlled oscillator
US5812786A (en) * 1995-06-21 1998-09-22 Bell Atlantic Network Services, Inc. Variable rate and variable mode transmission system
US6026286A (en) * 1995-08-24 2000-02-15 Nortel Networks Corporation RF amplifier, RF mixer and RF receiver
US5859878A (en) * 1995-08-31 1999-01-12 Northrop Grumman Corporation Common receive module for a programmable digital radio
US5602847A (en) * 1995-09-27 1997-02-11 Lucent Technologies Inc. Segregated spectrum RF downconverter for digitization systems
JPH09114591A (ja) * 1995-10-12 1997-05-02 Semiconductor Energy Lab Co Ltd 液晶表示装置及びその表示方法
DE69636411D1 (de) * 1995-11-07 2006-09-14 Ikeda Takeshi Abstimmbarer verstärker
US5721514A (en) * 1995-11-22 1998-02-24 Efratom Time And Frequency Products, Inc. Digital frequency generation in atomic frequency standards using digital phase shifting
US5887001A (en) * 1995-12-13 1999-03-23 Bull Hn Information Systems Inc. Boundary scan architecture analog extension with direct connections
US5710998A (en) * 1995-12-19 1998-01-20 Motorola, Inc. Method and apparatus for improved zero intermediate frequency receiver latency
US5705955A (en) * 1995-12-21 1998-01-06 Motorola, Inc. Frequency locked-loop using a microcontroller as a comparator
US5864754A (en) * 1996-02-05 1999-01-26 Hotto; Robert System and method for radio signal reconstruction using signal processor
SE519541C2 (sv) * 1996-10-02 2003-03-11 Ericsson Telefon Ab L M Förfarande och anordning för transformering av en reell digital bredbandig bandpassignal till en uppsättning digitala basbandssignaler med I- och Q-komponenter
US6182011B1 (en) * 1996-04-01 2001-01-30 The United States Of America As Represented By The Administrator Of National Aeronautics And Space Administration Method and apparatus for determining position using global positioning satellites
US5787125A (en) * 1996-05-06 1998-07-28 Motorola, Inc. Apparatus for deriving in-phase and quadrature-phase baseband signals from a communication signal
JP3576702B2 (ja) * 1996-06-12 2004-10-13 富士通株式会社 可変ハイパスフィルタ
US5900746A (en) * 1996-06-13 1999-05-04 Texas Instruments Incorporated Ultra low jitter differential to fullswing BiCMOS comparator with equal rise/fall time and complementary outputs
US5884154A (en) * 1996-06-26 1999-03-16 Raytheon Company Low noise mixer circuit having passive inductor elements
US6005903A (en) * 1996-07-08 1999-12-21 Mendelovicz; Ephraim Digital correlator
US5896304A (en) * 1996-07-12 1999-04-20 General Electric Company Low power parallel correlator for measuring correlation between digital signal segments
US6028887A (en) * 1996-07-12 2000-02-22 General Electric Company Power efficient receiver
US5710992A (en) * 1996-07-12 1998-01-20 Uniden America Corporation Chain search in a scanning receiver
FI117841B (fi) * 1996-07-18 2007-03-15 Nokia Corp Järjestely radiotaajuisen signaalin lähettämiseksi ja vastaanottamiseksi kahdella taajuusalueella
US5705949A (en) * 1996-09-13 1998-01-06 U.S. Robotics Access Corp. Compensation method for I/Q channel imbalance errors
US6018553A (en) * 1996-09-18 2000-01-25 Wireless Access Multi-level mixer architecture for direct conversion of FSK signals
US5878088A (en) * 1997-04-10 1999-03-02 Thomson Consumer Electronics, Inc. Digital variable symbol timing recovery system for QAM
US5870670A (en) * 1996-09-23 1999-02-09 Motorola, Inc. Integrated image reject mixer
US5905433A (en) * 1996-11-25 1999-05-18 Highwaymaster Communications, Inc. Trailer communications system
JP3979690B2 (ja) * 1996-12-27 2007-09-19 富士通株式会社 半導体記憶装置システム及び半導体記憶装置
US6031217A (en) * 1997-01-06 2000-02-29 Texas Instruments Incorporated Apparatus and method for active integrator optical sensors
EP0863606B1 (en) * 1997-03-05 2003-09-24 Nec Corporation Direct conversion receiver capable of cancelling DC offset voltages
US5918167A (en) * 1997-03-11 1999-06-29 Northern Telecom Limited Quadrature downconverter local oscillator leakage canceller
US6169733B1 (en) * 1997-05-12 2001-01-02 Northern Telecom Limited Multiple mode capable radio receiver device
US7209523B1 (en) * 1997-05-16 2007-04-24 Multispectral Solutions, Inc. Ultra-wideband receiver and transmitter
EP0935851B1 (en) * 1997-08-12 2004-10-06 Koninklijke Philips Electronics N.V. A digital communication device and a mixer
US5872446A (en) * 1997-08-12 1999-02-16 International Business Machines Corporation Low voltage CMOS analog multiplier with extended input dynamic range
JPH11103215A (ja) * 1997-09-26 1999-04-13 Matsushita Electric Ind Co Ltd マイクロ波ミキサー回路とダウンコンバータ
US6330292B1 (en) * 1997-11-11 2001-12-11 Telefonaktiebolaget Lm Ericsson Reduced power matched filter
US6567483B1 (en) * 1997-11-11 2003-05-20 Ericsson, Inc. Matched filter using time-multiplexed precombinations
KR100324259B1 (ko) * 1998-02-12 2002-02-21 다카토리 수나오 매치드필터뱅크
US6686879B2 (en) * 1998-02-12 2004-02-03 Genghiscomm, Llc Method and apparatus for transmitting and receiving signals having a carrier interferometry architecture
US6057714A (en) * 1998-05-29 2000-05-02 Conexant Systems, Inc. Double balance differential active ring mixer with current shared active input balun
US6512544B1 (en) * 1998-06-17 2003-01-28 Foveon, Inc. Storage pixel sensor and array with compression
US6404823B1 (en) * 1998-07-01 2002-06-11 Conexant Systems, Inc. Envelope feedforward technique with power control for efficient linear RF power amplification
US6061551A (en) * 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
US7321735B1 (en) * 1998-10-21 2008-01-22 Parkervision, Inc. Optical down-converter using universal frequency translation technology
US7236754B2 (en) * 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
US6542722B1 (en) * 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
US7039372B1 (en) * 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
US6560301B1 (en) * 1998-10-21 2003-05-06 Parkervision, Inc. Integrated frequency translation and selectivity with a variety of filter embodiments
US6370371B1 (en) * 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US7209725B1 (en) * 1999-01-22 2007-04-24 Parkervision, Inc Analog zero if FM decoder and embodiments thereof, such as the family radio service
US7006805B1 (en) * 1999-01-22 2006-02-28 Parker Vision, Inc. Aliasing communication system with multi-mode and multi-band functionality and embodiments thereof, such as the family radio service
US6879817B1 (en) * 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
US7065162B1 (en) * 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
US6404758B1 (en) * 1999-04-19 2002-06-11 Ericsson, Inc. System and method for achieving slot synchronization in a wideband CDMA system in the presence of large initial frequency errors
EP1201029B1 (en) * 1999-05-24 2003-04-02 Level One Communications, Inc Automatic gain control and offset correction
JP4245227B2 (ja) * 1999-06-03 2009-03-25 シャープ株式会社 デジタルマッチドフィルタ
JP2000357951A (ja) * 1999-06-15 2000-12-26 Mitsubishi Electric Corp 遅延回路、クロック生成回路及び位相同期回路
US7072390B1 (en) * 1999-08-04 2006-07-04 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments
US7054296B1 (en) * 1999-08-04 2006-05-30 Parkervision, Inc. Wireless local area network (WLAN) technology and applications including techniques of universal frequency translation
US6335656B1 (en) * 1999-09-30 2002-01-01 Analog Devices, Inc. Direct conversion receivers and filters adapted for use therein
FI114887B (fi) * 1999-10-13 2005-01-14 U Nav Microelectronics Corp Hajaspektrivastaanottimen signaalinhakujärjestelmä
US6560451B1 (en) * 1999-10-15 2003-05-06 Cirrus Logic, Inc. Square wave analog multiplier
US6917789B1 (en) * 1999-10-21 2005-07-12 Broadcom Corporation Adaptive radio transceiver with an antenna matching circuit
US7082171B1 (en) * 1999-11-24 2006-07-25 Parkervision, Inc. Phase shifting applications of universal frequency translation
US6741650B1 (en) * 2000-03-02 2004-05-25 Adc Telecommunications, Inc. Architecture for intermediate frequency encoder
JP2001283107A (ja) * 2000-03-29 2001-10-12 Sony Corp 販売事業管理システム、販売事業管理装置及び販売事業管理方法
US7010286B2 (en) * 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
US6591310B1 (en) * 2000-05-11 2003-07-08 Lsi Logic Corporation Method of responding to I/O request and associated reply descriptor
KR100374929B1 (ko) * 2000-06-02 2003-03-06 학교법인 한국정보통신학원 주파수 변환 회로
US6992990B2 (en) * 2000-07-17 2006-01-31 Sony Corporation Radio communication apparatus
US6865399B2 (en) * 2000-10-26 2005-03-08 Renesas Technology Corp. Mobile telephone apparatus
US6526264B2 (en) * 2000-11-03 2003-02-25 Cognio, Inc. Wideband multi-protocol wireless radio transceiver system
US7010559B2 (en) * 2000-11-14 2006-03-07 Parkervision, Inc. Method and apparatus for a parallel correlator and applications thereof
WO2002045283A2 (en) * 2000-11-29 2002-06-06 Broadcom Corporation Integrated direct conversion satellite tuner
US6509777B2 (en) * 2001-01-23 2003-01-21 Resonext Communications, Inc. Method and apparatus for reducing DC offset
US6597240B1 (en) * 2001-04-02 2003-07-22 Cirrus Logic, Inc. Circuits and methods for slew rate control and current limiting in switch-mode systems
US7072433B2 (en) * 2001-07-11 2006-07-04 Micron Technology, Inc. Delay locked loop fine tune
US6917796B2 (en) * 2001-10-04 2005-07-12 Scientific Components Triple balanced mixer
US20030078011A1 (en) * 2001-10-18 2003-04-24 Integrated Programmable Communications, Inc. Method for integrating a plurality of radio systems in a unified transceiver structure and the device of the same
US7072427B2 (en) * 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
FR2836305B1 (fr) * 2002-02-15 2004-05-07 St Microelectronics Sa Melangeur differentiel classe ab
US7194044B2 (en) * 2002-05-22 2007-03-20 Alexander Neil Birkett Up/down conversion circuitry for radio transceiver
US7321640B2 (en) * 2002-06-07 2008-01-22 Parkervision, Inc. Active polyphase inverter filter for quadrature signal generation
US6892057B2 (en) * 2002-08-08 2005-05-10 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for reducing dynamic range of a power amplifier
US20040125879A1 (en) * 2002-12-31 2004-07-01 Jaussi James E. Information transmission unit
US6999747B2 (en) * 2003-06-22 2006-02-14 Realtek Semiconductor Corp. Passive harmonic switch mixer
US6992284B2 (en) * 2003-10-20 2006-01-31 Ionwerks, Inc. Ion mobility TOF/MALDI/MS using drift cell alternating high and low electrical field regions

Also Published As

Publication number Publication date
WO2002041494A2 (en) 2002-05-23
US7433910B2 (en) 2008-10-07
US20050193049A1 (en) 2005-09-01
US20050185741A1 (en) 2005-08-25
US7233969B2 (en) 2007-06-19
US7010559B2 (en) 2006-03-07
WO2002041494A3 (en) 2003-08-21
US20020124036A1 (en) 2002-09-05

Similar Documents

Publication Publication Date Title
AU2002239251A1 (en) Method and apparatus for implementing a parallel correlator and applications thereof
AU2001247753A1 (en) Method and apparatus for integrated-battery devices
AU2001243522A1 (en) Method and apparatus for inducing a cellular response
AU2001241524A1 (en) Method and apparatus for a three-dimensional web-navigator
AU2001263028A1 (en) Stream-cipher method and apparatus
AU2001246687A1 (en) A tracking device and method
AU2001256933A1 (en) Apparatus and method
AU2001247010A1 (en) Incremental alarm correlation method and apparatus
AU2001265038A1 (en) Method and apparatus for balancing distributed applications
AU2001261446A1 (en) Method and apparatus for a portable information agent
AU2001283313A1 (en) Device and method for electrodialysis
AU2001264771A1 (en) Well reference apparatus and method
AU2001224723A1 (en) Method and apparatus for automatically selecting a rule
AUPR157300A0 (en) An apparatus and method (bin03)
AUPR157400A0 (en) An apparatus and method (bin01)
AU2001286829A1 (en) Method and apparatus for implementing a web application
AU2000276393A1 (en) A method and apparatus for extracting entity names and their relations
AU2001273562A1 (en) Method and apparatus for identifying a subject
AU2001227007A1 (en) A processing method and apparatus
AU2001292146A1 (en) Plate processing device and method for processing a plate
AU2002219222A1 (en) Device and method for changing lines
AU2002227964A1 (en) Pneumatic rock-boring device and method for starting such a device
AU2002223092A1 (en) Pigging method and apparatus
AUPR111700A0 (en) Browsing method and apparatus
AU5648001A (en) Apparatus and method for de-oxygenating a fluid