Connect public, paid and private patent data with Google Patents Public Datasets

Verfahren und System zur Abwärtsumsetzung von einem elektromagnetischen Signal

Info

Publication number
DE69940960D1
DE69940960D1 DE1999640960 DE69940960A DE69940960D1 DE 69940960 D1 DE69940960 D1 DE 69940960D1 DE 1999640960 DE1999640960 DE 1999640960 DE 69940960 A DE69940960 A DE 69940960A DE 69940960 D1 DE69940960 D1 DE 69940960D1
Authority
DE
Grant status
Grant
Patent type
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.)
Active
Application number
DE1999640960
Other languages
English (en)
Inventor
David F Sorrels
Michael J Bultman
Robert W Cook
Richard C Looke
Charley D Moses Jr
Gregory S Rawlins
Michael W Rawlins
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
Grant date
Family has litigation

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/32Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38Demodulator circuits; Receiver circuits
    • H04L27/3845Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier
    • H04L27/3881Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier using sampling and digital processing, not including digital systems which imitate heterodyne or homodyne demodulation
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03CMODULATION
    • H03C1/00Amplitude modulation
    • H03C1/62Modulators in which amplitude of carrier component in output is dependent upon strength of modulating signal, e.g. no carrier output when no modulating signal is present
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03DDEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00Transference of modulation from one carrier to another, e.g. frequency-changing
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03DDEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14Balanced arrangements
    • H03D7/1425Balanced arrangements with transistors
    • H03D7/1441Balanced arrangements with transistors using field-effect transistors
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03DDEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14Balanced arrangements
    • H03D7/1425Balanced arrangements with transistors
    • H03D7/1475Subharmonic mixer arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/0003Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
    • H04B1/0007Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage
    • H04B1/0025Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage using a sampling rate lower than twice the highest frequency component of the sampled signal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06Receivers
    • H04B1/16Circuits
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06Receivers
    • H04B1/16Circuits
    • H04B1/26Circuits for superheterodyne receivers
    • H04B1/28Circuits for superheterodyne receivers the receiver comprising at least one semiconductor device having three or more electrodes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas
    • H04B7/12Frequency diversity
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; Arrangements for supplying electrical power along data transmission lines
    • H04L25/08Modifications for reducing interference; Modifications for reducing effects due to line faults ; Receiver end arrangements for detecting or overcoming line faults
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/02Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/06Demodulator circuits; Receiver circuits
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/10Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/12Modulator circuits; Transmitter circuits
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/10Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/14Demodulator circuits; Receiver circuits
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/10Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/14Demodulator circuits; Receiver circuits
    • H04L27/144Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements
    • H04L27/148Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using filters, including PLL-type filters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/10Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/14Demodulator circuits; Receiver circuits
    • H04L27/156Demodulator circuits; Receiver circuits with demodulation using temporal properties of the received signal, e.g. detecting pulse width
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2647Arrangements specific to the receiver
    • H04L27/2655Synchronisation arrangements
    • H04L27/2668Details of algorithms
    • H04L27/2669Details of algorithms characterised by the domain of operation
    • H04L27/2672Frequency domain
DE1999640960 1998-10-21 1999-10-20 Verfahren und System zur Abwärtsumsetzung von einem elektromagnetischen Signal Active DE69940960D1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US09176022 US6061551A (en) 1998-10-21 1998-10-21 Method and system for down-converting electromagnetic signals
US09293342 US6687493B1 (en) 1998-10-21 1999-04-16 Method and circuit for down-converting a signal using a complementary FET structure for improved dynamic range
US09293095 US6580902B1 (en) 1998-10-21 1999-04-16 Frequency translation using optimized switch structures

Publications (1)

Publication Number Publication Date
DE69940960D1 true DE69940960D1 (de) 2009-07-16

Family

ID=22642661

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1999640960 Active DE69940960D1 (de) 1998-10-21 1999-10-20 Verfahren und System zur Abwärtsumsetzung von einem elektromagnetischen Signal

Country Status (4)

Country Link
US (25) US6061551A (de)
KR (1) KR100556637B1 (de)
DE (1) DE69940960D1 (de)
EP (1) EP1315285B8 (de)

Families Citing this family (155)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6694128B1 (en) 1998-08-18 2004-02-17 Parkervision, Inc. Frequency synthesizer using universal frequency translation technology
US9325556B2 (en) 1998-10-21 2016-04-26 Parkervision, Inc. Methods and systems for down-converting a signal
US8406724B2 (en) 1998-10-21 2013-03-26 Parkervision, Inc. Applications of universal frequency translation
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US6061551A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
US6560301B1 (en) * 1998-10-21 2003-05-06 Parkervision, Inc. Integrated frequency translation and selectivity with a variety of filter embodiments
US7010286B2 (en) 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
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
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
US6061555A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for ensuring reception of a communications signal
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
US6704558B1 (en) 1999-01-22 2004-03-09 Parkervision, Inc. Image-reject down-converter and embodiments thereof, such as the family radio service
US7209725B1 (en) 1999-01-22 2007-04-24 Parkervision, Inc Analog zero if FM decoder and embodiments thereof, such as the family radio service
US6704549B1 (en) 1999-03-03 2004-03-09 Parkvision, Inc. Multi-mode, multi-band communication system
US7110435B1 (en) * 1999-03-15 2006-09-19 Parkervision, Inc. Spread spectrum applications of universal frequency translation
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
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
US7065162B1 (en) 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
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
US6478793B1 (en) * 1999-06-11 2002-11-12 Sherwood Services Ag Ablation treatment of bone metastases
CA2281236C (en) 1999-09-01 2010-02-09 Tajinder Manku Direct conversion rf schemes using a virtually generated local oscillator
US8838033B2 (en) * 1999-10-21 2014-09-16 Broadcom Corporation System and method for signal amplification
US8014724B2 (en) 1999-10-21 2011-09-06 Broadcom Corporation System and method for signal limiting
DE60028937T2 (de) * 1999-12-14 2006-11-23 Matsushita Electric Industrial Co., Ltd., Kadoma Hochfrequenz zusammengesetzter schaltergauelement
US7327775B1 (en) * 1999-12-23 2008-02-05 Nokia Corporation CDMA receiver
US6634555B1 (en) 2000-01-24 2003-10-21 Parker Vision, Inc. Bar code scanner using universal frequency translation technology for up-conversion and down-conversion
US7743074B1 (en) * 2000-04-05 2010-06-22 Microsoft Corporation Context aware systems and methods utilizing hierarchical tree structures
DE60037722D1 (de) * 2000-05-17 2008-02-21 Sony Deutschland Gmbh AM Empfänger
US6484096B2 (en) * 2000-06-06 2002-11-19 Satellite Devices Limited Wireless vehicle monitoring system
US6484095B2 (en) 2000-06-06 2002-11-19 Satellite Devices Ltd. Vehicle operation and position recording system incorporating GPS
US7215931B2 (en) * 2001-06-19 2007-05-08 Sirific Wireless Corporation Method and apparatus for up-and-down-conversion of radio frequency (RF) signals
US7010559B2 (en) * 2000-11-14 2006-03-07 Parkervision, Inc. Method and apparatus for a parallel correlator and applications thereof
US7454453B2 (en) 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
US7016616B2 (en) * 2000-12-05 2006-03-21 Elan Microelectronics Corporation Integrated circuit receiver available for infrared or ultrasonic transmission with digital filtering
US7110732B2 (en) * 2001-04-09 2006-09-19 Texas Instruments Incorporated Subsampling RF receiver architecture
US7116728B2 (en) * 2001-05-25 2006-10-03 Matsushita Electric Industrial Co., Ltd. Quadrature alignment in communications receivers using dual delay lines
US7047029B1 (en) * 2001-09-10 2006-05-16 The Directv Group, Inc. Adaptive transmission system
US9485010B1 (en) 2001-09-10 2016-11-01 The Directv Group, Inc. Adaptive coding and modulation for spot beam satellite broadcast
US7012556B2 (en) * 2001-10-08 2006-03-14 Qinetiq Limited Signal processing system and method
US7085335B2 (en) * 2001-11-09 2006-08-01 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
US8045935B2 (en) * 2001-12-06 2011-10-25 Pulse-Link, Inc. High data rate transmitter and receiver
JP4166466B2 (ja) * 2001-12-19 2008-10-15 ソニー株式会社 無線通信システム及び無線通信方法、無線通信装置及びその制御方法、並びにコンピュータ・プログラム
US6975848B2 (en) * 2002-06-04 2005-12-13 Parkervision, Inc. Method and apparatus for DC offset removal in a radio frequency communication channel
US7321640B2 (en) * 2002-06-07 2008-01-22 Parkervision, Inc. Active polyphase inverter filter for quadrature signal generation
US7099367B2 (en) * 2002-06-14 2006-08-29 Time Domain Corporation Method and apparatus for converting RF signals to baseband
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
JP4180890B2 (ja) * 2002-11-21 2008-11-12 三星電子株式会社Samsung Electronics Co.,Ltd. 超広帯域無線送信機及び超広帯域無線受信機並びに超広帯域無線通信方法
KR100471156B1 (ko) * 2002-12-03 2005-03-10 삼성전기주식회사 주파수 분배방식을 이용한 광대역 주파수 발생 장치
JP4311034B2 (ja) * 2003-02-14 2009-08-12 沖電気工業株式会社 帯域復元装置及び電話機
WO2004099987A1 (en) * 2003-04-08 2004-11-18 Zeroplus Technology Co., Ltd Logic analyzer data retrieving circuit and its retrieving method
KR100531619B1 (ko) * 2003-04-10 2005-11-28 주식회사 케이티프리텔 수신전용 패스를 포함하는 통신 시스템의 수신감도를측정하는 장치 및 방법
DE10317570B3 (de) * 2003-04-16 2004-09-16 Koenig & Bauer Ag Antriebsvorrichtung eines Aggregates einer Druckmaschine
US7181199B2 (en) 2003-04-30 2007-02-20 Parkervision, Inc. Real-time wireless exchange of objects
US7801936B2 (en) * 2003-06-17 2010-09-21 Robinson Gaudino Caputo Method of generating complex waveforms and modulating signals
US8751552B2 (en) * 2003-06-17 2014-06-10 The Pulse Perfect Corporation, Inc. System and method of generating complex waveforms
US7653349B1 (en) 2003-06-18 2010-01-26 The Directv Group, Inc. Adaptive return link for two-way satellite communication systems
US20050035660A1 (en) * 2003-07-31 2005-02-17 John Santhoff Electromagnetic pulse generator
US20050035663A1 (en) * 2003-07-31 2005-02-17 Steven Moore Electromagnetic pulse generator
US20050024038A1 (en) * 2003-07-31 2005-02-03 John Santhoff Sampling circuit apparatus and method
US7499684B2 (en) * 2003-09-19 2009-03-03 Ipr Licensing, Inc. Master-slave local oscillator porting between radio integrated circuits
US20050113045A1 (en) * 2003-11-21 2005-05-26 John Santhoff Bridged ultra-wideband communication method and apparatus
US7046618B2 (en) * 2003-11-25 2006-05-16 Pulse-Link, Inc. Bridged ultra-wideband communication method and apparatus
EP1718179A2 (de) * 2004-01-16 2006-11-08 GHZ TR Corporation Verfahren und vorrichtung für kraftfahrzeugradarsensoren
US6809675B1 (en) * 2004-03-05 2004-10-26 International Business Machines Corporation Redundant analog to digital state machine employed to multiple states on a single line
US7110742B2 (en) * 2004-03-16 2006-09-19 Broadcom Corporation Low noise amplifier with constant input impedance
EP1596504B1 (de) * 2004-05-11 2007-03-14 Sony Deutschland GmbH Polschaltabwärtsumsetzer mit einem symmetrischen Resonator
JP4138758B2 (ja) * 2004-07-23 2008-08-27 シャープ株式会社 無線受信装置、無線通信システムおよび電子機器
US7553309B2 (en) * 2004-10-08 2009-06-30 Covidien Ag Electrosurgical system employing multiple electrodes and method thereof
US7282049B2 (en) * 2004-10-08 2007-10-16 Sherwood Services Ag Electrosurgical system employing multiple electrodes and method thereof
US7776035B2 (en) * 2004-10-08 2010-08-17 Covidien Ag Cool-tip combined electrode introducer
US7467075B2 (en) * 2004-12-23 2008-12-16 Covidien Ag Three-dimensional finite-element code for electrosurgery and thermal ablation simulations
US20070066971A1 (en) * 2005-09-21 2007-03-22 Podhajsky Ronald J Method and system for treating pain during an electrosurgical procedure
US7879031B2 (en) * 2005-09-27 2011-02-01 Covidien Ag Cooled RF ablation needle
US20070078454A1 (en) * 2005-09-30 2007-04-05 Mcpherson James W System and method for creating lesions using bipolar electrodes
US20070078453A1 (en) * 2005-10-04 2007-04-05 Johnson Kristin D System and method for performing cardiac ablation
US7496158B2 (en) * 2005-10-11 2009-02-24 L-3 Communications Integrated Systems L.P. Swept bandpass filter frequency modulated continuous wave (FMCW) receiver and related method
WO2007044749A3 (en) * 2005-10-11 2007-05-31 L 3 Integrated Systems Co Direct bandpass sampling receivers and related methods
US7489745B2 (en) * 2005-10-11 2009-02-10 L-3 Communications Integrated Systems L.P. Reconfigurable direct RF bandpass sampling receiver and related methods
KR100653642B1 (ko) * 2005-11-18 2006-11-28 삼성전자주식회사 Dc 옵셋 제거된 기저 대역 신호를 이용하는 rf 수신장치 및 방법
US7706743B1 (en) 2005-11-21 2010-04-27 Michael David Moore Low power radio device for providing access to aircraft communications (or other specialized communications) to the general public via commercial radio bands and receivers
US8795270B2 (en) * 2006-04-24 2014-08-05 Covidien Ag System and method for ablating tissue
US20070258838A1 (en) * 2006-05-03 2007-11-08 Sherwood Services Ag Peristaltic cooling pump system
US20070260240A1 (en) 2006-05-05 2007-11-08 Sherwood Services Ag Soft tissue RF transection and resection device
US7546817B2 (en) * 2006-07-21 2009-06-16 Radio Systems Corporation Animal containment transmitter system
US7763018B2 (en) 2006-07-28 2010-07-27 Covidien Ag Cool-tip thermocouple including two-piece hub
WO2008065791A1 (fr) * 2006-11-30 2008-06-05 Murata Manufacturing Co., Ltd. Procédé de correction d'erreur de caractéristiques hautes fréquences d'un composant électronique
US20080153429A1 (en) * 2006-12-22 2008-06-26 Sony Ericsson Mobile Communications Ab Network Managed Compressed Mode Operation
US8211099B2 (en) 2007-01-31 2012-07-03 Tyco Healthcare Group Lp Thermal feedback systems and methods of using the same
US9486269B2 (en) * 2007-06-22 2016-11-08 Covidien Lp Electrosurgical systems and cartridges for use therewith
US8181995B2 (en) 2007-09-07 2012-05-22 Tyco Healthcare Group Lp Cool tip junction
US8218575B2 (en) 2007-11-26 2012-07-10 Versitech Limited Method and system for shortening the length of time gaps between data units in a data switching network
US8292880B2 (en) 2007-11-27 2012-10-23 Vivant Medical, Inc. Targeted cooling of deployable microwave antenna
US8249129B2 (en) * 2007-12-19 2012-08-21 L-3 Communications Integrated Systems L.P. Wideband frequency hopping spread spectrum transmitters and related methods
US9488478B2 (en) * 2008-06-02 2016-11-08 The Boeing Company Methods and systems for visual flight rule (VFR) chart generation
US8608739B2 (en) * 2008-07-22 2013-12-17 Covidien Lp Electrosurgical devices, systems and methods of using the same
CN101465656A (zh) * 2008-09-05 2009-06-24 华为技术有限公司 一种变频的装置、方法和系统
JP5195234B2 (ja) * 2008-09-29 2013-05-08 ソニー株式会社 受信装置及び受信方法
US20100087808A1 (en) * 2008-10-03 2010-04-08 Vivant Medical, Inc. Combined Frequency Microwave Ablation System, Devices and Methods of Use
US8428465B2 (en) * 2008-10-29 2013-04-23 Calix, Inc. Return path for uspstream communications originating from optical node
US20110033189A1 (en) * 2008-10-29 2011-02-10 Calix Networks, Inc. Return path compliance in networks
WO2010051857A1 (en) * 2008-11-10 2010-05-14 Oticon A/S N band fm demodulation to aid cochlear hearing impaired persons
US8509354B2 (en) * 2008-12-18 2013-08-13 L—3 Communications Integrated Systems L.P. System and method for improved spur reduction in direct RF receiver architectures
US8509368B2 (en) * 2008-12-18 2013-08-13 L-3 Communications Integrated Systems, L.P. System and method for clock jitter compensation in direct RF receiver architectures
US8081946B2 (en) * 2008-12-23 2011-12-20 L-3 Communications Integrated Systems L.P. Interference cancellation for reconfigurable direct RF bandpass sampling interference cancellation
US8078130B2 (en) * 2008-12-23 2011-12-13 L-3 Communications Integrated Systems L.P. Systems and methods for interference cancellation
US7994968B2 (en) * 2009-02-26 2011-08-09 Mcewan Technologies, Llc RF magnitude sampler for holographic radar
US20100256735A1 (en) * 2009-04-03 2010-10-07 Board Of Regents, The University Of Texas System Intraluminal stent with seam
US8323275B2 (en) 2009-06-19 2012-12-04 Vivant Medical, Inc. Laparoscopic port with microwave rectifier
EP2288041A3 (de) * 2009-08-18 2013-04-24 Gerald Youngblood Direktumsetzempfänger
US20110050359A1 (en) * 2009-09-01 2011-03-03 Provigent Ltd High-Performance Conversion Between Single-Ended and Differential/Common-Mode Signals
US8469953B2 (en) 2009-11-16 2013-06-25 Covidien Lp Twin sealing chamber hub
WO2011069229A1 (en) * 2009-12-11 2011-06-16 Ess Technology, Inc. Virtual weaver architecture filter
US20110151979A1 (en) * 2009-12-23 2011-06-23 Aristocrat Technologies Australia Pty Limited Method of enabling restoration of games and a method of restoring games
US8237472B2 (en) * 2010-01-29 2012-08-07 National Chiao Tung University Frequency multiplier device and method thereof
US8974449B2 (en) 2010-07-16 2015-03-10 Covidien Lp Dual antenna assembly with user-controlled phase shifting
KR101723235B1 (ko) * 2010-10-04 2017-04-04 삼성전자주식회사 입체 영상의 입체감을 감쇠하기 위한 장치 및 방법
US8592747B2 (en) * 2011-01-19 2013-11-26 Baker Hughes Incorporated Programmable filters for improving data fidelity in swept-wavelength interferometry-based systems
US8401050B1 (en) 2011-03-15 2013-03-19 L-3 Communications Integrated Systems L.P. Multiple projection sampling for RF sampling receivers
US9114181B2 (en) 2011-03-30 2015-08-25 Covidien Lp Process of cooling surgical device battery before or during high temperature sterilization
US9113943B2 (en) 2011-03-30 2015-08-25 Covidien Lp Ultrasonic surgical instruments
WO2012132215A1 (ja) 2011-03-31 2012-10-04 ルネサスエレクトロニクス株式会社 シリアル通信装置
US9577855B1 (en) 2011-07-13 2017-02-21 Softronics, Ltd. Channelized multicarrier digitizer
US9184771B2 (en) 2011-10-12 2015-11-10 Optis Cellular Technology, Llc Digital down conversion and demodulation
EP2783493A1 (de) * 2011-11-25 2014-10-01 Widex A/S Automatische fsk-abstimmschaltung für ein hörgerät und verfahren
US20130163787A1 (en) * 2011-12-23 2013-06-27 Nancy Diane Moon Electronically Orbited Speaker System
EP2610434A1 (de) * 2011-12-29 2013-07-03 Welltec A/S Bohrloch-Anzeigesystem
WO2013118115A1 (en) * 2012-02-08 2013-08-15 Anatech Advanced Nmr Algorithms Technologies Ltd Apparatus and method for non-invasive measurement of blood parameters
US8965290B2 (en) * 2012-03-29 2015-02-24 General Electric Company Amplitude enhanced frequency modulation
US8817908B2 (en) * 2012-04-16 2014-08-26 Intel Corporation Generating and/or receiving, at least in part, signal that includes at least one waveform
EP2717530B1 (de) * 2012-05-09 2015-09-16 Huawei Technologies Co., Ltd. Trägersynchronisationsverfahren, -schaltung und -system
EP2863823B1 (de) 2012-06-22 2017-08-16 Covidien LP Mikrowellenthermometrie für mikrowellenablationssysteme
US9259269B2 (en) 2012-08-07 2016-02-16 Covidien Lp Microwave ablation catheter and method of utilizing the same
WO2014057234A1 (en) 2012-10-08 2014-04-17 Mbda Uk Limited Improvements in and relating to radar receivers
GB2506671B (en) * 2012-10-08 2015-11-18 Mbda Uk Ltd Improvements in and relating to radar receivers
US9270393B2 (en) * 2012-12-20 2016-02-23 Visteon Global Technologies, Inc. Method and system for reducing amplitude modulation (AM) noise in AM broadcast signals
US8711982B1 (en) * 2013-03-08 2014-04-29 Hong Kong Applied Science & Technology Research Institute Company, Ltd. Amplitude-shift-keying (ASK) envelope detector and demodulation circuits
US9014293B2 (en) 2013-03-15 2015-04-21 Tm Ip Holdings, Llc Transpositional modulation systems and methods
US9515815B2 (en) * 2013-03-15 2016-12-06 Tm Ip Holdings, Llc Transpositional modulation systems, methods and devices
JP2016514550A (ja) 2013-03-29 2016-05-23 コビディエン エルピー ステップダウン同軸マイクロ波アブレーションアプリケータ及び同を製造するための方法
WO2014195739A8 (en) * 2013-06-06 2015-01-15 Elektrotehnicki Fakultet Sveucilista U Osijeku Energy-efficient system for distant measurement of analogue signals
GB201609341D0 (en) 2013-12-03 2016-07-13 Radio Systems Corp Method and apparatus for verifying battery authenticity
JP2015130583A (ja) * 2014-01-07 2015-07-16 ローム株式会社 Ad変換回路
US9088471B1 (en) 2014-02-19 2015-07-21 Qualcomm Incorporated Quadrature combining and adjusting
US9473340B2 (en) * 2014-12-15 2016-10-18 Apple Inc. Orthogonal frequency division multiplexing polar transmitter
US9559735B2 (en) * 2015-01-30 2017-01-31 Qualcomm Incorporated Switching resonator filter circuits and methods
US9537690B1 (en) * 2015-07-10 2017-01-03 Keysight Technologies, Inc. Method and apparatus for extraction of baseband waveform from amplitude modulated signal via time domain sampling
CN105472858A (zh) * 2015-11-26 2016-04-06 中国科学院上海应用物理研究所 一种多路频率信号的产生及合成装置
US20170237450A1 (en) * 2016-02-16 2017-08-17 Thomson Licensing Apparatus and method for controlling a filter in a signal communication device
RU169628U1 (ru) * 2016-04-01 2017-03-24 Акционерное общество "Научно-исследовательский институт электронной техники" Генератор на кмоп транзисторах ультравысоких модулированных по частоте колебаний

Family Cites Families (928)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US535514A (en) * 1895-03-12 Dominique leonard van riet
US35829A (en) * 1862-07-08 Improvement in pumps
US35494A (en) * 1862-06-03 Improvement in stoves
US1688570A (en) 1924-03-06 1928-10-23 Williams Foundry & Machine Com Vulcanizer head
US1699570A (en) 1927-09-23 1929-01-22 American Telephone & Telegraph Carrier suppression modulation
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 (de) * 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 (de) * 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
US3241078A (en) 1963-06-18 1966-03-15 Honeywell Inc Dual output synchronous detector utilizing transistorized differential amplifiers
US3246440A (en) * 1963-07-24 1966-04-19 Chicago United Products Compan Fastener assembly
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
DE1936252U (de) 1965-05-11 1966-04-07 Vdo Schindling Temperaturfuehler.
US3426084A (en) * 1966-06-15 1969-02-04 Parke Davis & Co Process for the production of beta-nitroethanol
FR1504609A (fr) * 1966-09-21 1967-12-08 Ibm France Système de transmission de données
US3454718A (en) * 1966-10-03 1969-07-08 Xerox Corp Fsk transmitter with transmission of the same number of cycles of each carrier frequency
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
US3617892A (en) * 1967-02-27 1971-11-02 Rca Corp Frequency modulation system for spreading radiated power
NL6706736A (de) 1967-05-13 1968-11-14 Philips Nv
US3622885A (en) 1968-07-26 1971-11-23 Autophon Ag System for the parallel transmission of signals
US3629696A (en) * 1968-08-06 1971-12-21 Northeast Electronics Corp Method and apparatus for measuring delay distortion including simultaneously applied modulated signals
US3548342A (en) * 1968-10-15 1970-12-15 Ibm Digitally controlled amplitude modulation circuit
US3614627A (en) 1968-10-15 1971-10-19 Data Control Systems Inc Universal demodulation system
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 (de) * 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 (de) 1969-12-11 1971-02-11
US6531979B1 (en) 1970-02-10 2003-03-11 The United States Of America As Represented By The Secretary Of The Navy Adaptive time-compression stabilizer
US3626315A (en) 1970-04-07 1971-12-07 Sperry Rand Corp Voltage-controlled oscillator selectively injection locked to stable frequency harmonics
US4004237A (en) 1970-05-01 1977-01-18 Harris Corporation System for communication and navigation
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
US3809821A (en) 1971-10-08 1974-05-07 W Melvin Three-channel data modem apparatus
US3740636A (en) 1971-11-05 1973-06-19 Us Navy Charge regulator and monitor for spacecraft solar cell/battery system control
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
FR2245130B1 (de) 1973-09-21 1977-03-11 Jaeger
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 (de) 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
US4020487A (en) 1975-10-31 1977-04-26 Fairchild Camera And Instrument Corporation Analog-to-digital converter employing common mode rejection circuit
JPS5823978B2 (de) * 1975-11-11 1983-05-18 Sony Corp
JPS5826699B2 (de) 1975-11-13 1983-06-04 Sony Corp
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 (de) 1976-09-30 1984-04-06 Nippon Electric Co
JPS5731811B2 (de) 1977-05-16 1982-07-07
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
US4173164A (en) 1977-06-01 1979-11-06 Nippon Gakki Seizo Kabushiki Kaisha Electronic musical instrument with frequency modulation of a tone signal with an audible frequency signal
US4346477A (en) * 1977-08-01 1982-08-24 E-Systems, Inc. Phase locked sampling radio receiver
JPS6145433B2 (de) 1977-10-27 1986-10-08 Sony Corp
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
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
JPS56500198A (de) 1979-01-29 1981-02-19
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, De
US4250458A (en) * 1979-05-31 1981-02-10 Digital Communications Corporation Baseband DC offset detector and control circuit for DC coupled digital demodulator
US4409877A (en) 1979-06-11 1983-10-18 Cbs, Inc. Electronic tone generating system
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
US4484143A (en) 1982-05-17 1984-11-20 Rockwell International Corporation CCD Demodulator circuit
US4320536A (en) * 1979-09-18 1982-03-16 Dietrich James L Subharmonic pumped mixer circuit
JPS6211826B2 (de) * 1979-09-28 1987-03-14 Nippon Electric Co
FR2471081B1 (fr) * 1979-11-30 1986-05-30 Thomson Csf Filtre a capacites commutees a transfert de charges
US4356558A (en) * 1979-12-20 1982-10-26 Martin Marietta Corporation Optimum second order digital filter
US4286283A (en) 1979-12-20 1981-08-25 Rca Corporation Transcoder
FR2473808A1 (fr) * 1980-01-11 1981-07-17 Thomson Csf Melangeur subharmonique pour recepteur a ondes millimetriques et recepteur utilisant un tel melangeur
US4370572A (en) * 1980-01-17 1983-01-25 Trw Inc. Differential sample-and-hold circuit
FR2474791B1 (de) 1980-01-29 1982-11-26 Thomson Csf
DE3007907C2 (de) 1980-03-01 1988-04-21 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt, De
DE3016082C2 (de) * 1980-04-25 1982-10-21 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
US4253066A (en) * 1980-05-13 1981-02-24 Fisher Charles B Synchronous detection with sampling
US4485347A (en) * 1980-09-04 1984-11-27 Mitsubishi Denki Kabushiki Kaisha Digital FSK demodulator
US4393352A (en) 1980-09-18 1983-07-12 The Perkin-Elmer Corporation Sample-and-hold hybrid active RC filter
US4472785A (en) * 1980-10-13 1984-09-18 Victor Company Of Japan, Ltd. Sampling frequency converter
US4334324A (en) 1980-10-31 1982-06-08 Rca Corporation Complementary symmetry FET frequency converter circuits
US4517519A (en) * 1980-11-07 1985-05-14 Kabushiki Kaisha Suwa Seikosha FSK Demodulator employing a switched capacitor filter and period counters
US4360867A (en) * 1980-12-08 1982-11-23 Bell Telephone Laboratories, Incorporated Broadband frequency multiplication by multitransition operation of step recovery diode
DE3047386C2 (de) 1980-12-16 1989-05-11 Philips Patentverwaltung Gmbh, 2000 Hamburg, De
US4363976A (en) 1981-01-19 1982-12-14 Rockwell International Corporation Subinterval sampler
US4393395A (en) 1981-01-26 1983-07-12 Rca Corporation Balanced modulator with feedback stabilization of carrier balance
CA1170354A (en) * 1981-02-18 1984-07-03 Takao Mogi Aft circuit
GB2094079A (en) 1981-02-20 1982-09-08 Philips Electronic Associated Fm demodulator
US4352209A (en) 1981-03-23 1982-09-28 John Ma Up-down frequency converter for cable T.V.
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
DE3121146C2 (de) * 1981-05-27 1988-09-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
US4481642A (en) * 1981-06-02 1984-11-06 Texas Instruments Incorporated Integrated circuit FSK modem
US4483017A (en) 1981-07-31 1984-11-13 Rca Corporation Pattern recognition system using switched capacitors
US4517520A (en) * 1981-08-24 1985-05-14 Trio Kabushiki Kaisha Circuit for converting a staircase waveform into a smoothed analog signal
GB2106359B (en) * 1981-09-24 1985-07-03 Standard Telephones Cables Ltd Direct conversion radio receiver for fm signals
FR2515449B1 (fr) * 1981-10-23 1986-08-14 Thomson Csf Dispositif melangeur subharmonique hyperfrequence et systeme hyperfrequence utilisant un tel dispositif
US4446438A (en) * 1981-10-26 1984-05-01 Gte Automatic Electric Incorporated Switched capacitor n-path filter
JPS58105493A (en) * 1981-12-16 1983-06-23 Matsushita Electric Ind Co Ltd Storing and holding device for amplitude of pulse signal
US4441080A (en) 1981-12-17 1984-04-03 Bell Telephone Laboratories, Incorporated Amplifier with controlled gain
JPS58133004A (en) 1982-02-03 1983-08-08 Matsushita Electric Ind Co Ltd Amplitude detector
US4456990A (en) * 1982-02-10 1984-06-26 Fisher Charles B Periodic wave elimination by negative feedback
FR2521784B1 (fr) 1982-02-12 1985-09-20 Thomson Csf Melangeur a transistor pour hyperfrequences
JPS58139399A (en) 1982-02-15 1983-08-18 Hitachi Ltd Semiconductor storage device
US4479226A (en) * 1982-03-29 1984-10-23 At&T Bell Laboratories Frequency-hopped single sideband mobile radio system
US4481490A (en) * 1982-06-07 1984-11-06 Ael Microtel, Ltd. Modulator utilizing high and low frequency carriers
US4510467A (en) 1982-06-28 1985-04-09 Gte Communication Systems Corporation Switched capacitor DSB modulator/demodulator
US4504803A (en) * 1982-06-28 1985-03-12 Gte Lenkurt, Incorporated Switched capacitor AM modulator/demodulator
US4463320A (en) 1982-07-06 1984-07-31 Rockwell International Corporation Automatic gain control circuit
US4510453A (en) 1982-07-13 1985-04-09 Westinghouse Electric Corp. Frequency modulation or pulse modulation demodulator
US4470145A (en) 1982-07-26 1984-09-04 Hughes Aircraft Company Single sideband quadricorrelator
WO1985004750A1 (fr) 1982-11-26 1985-10-24 Mitsubishi Denki Kabushiki Kaisha Circuit d'entree analogique
JPH0110007Y2 (de) * 1983-01-28 1989-03-22
JPS59144249A (en) 1983-02-08 1984-08-18 Nec Corp Pulse signal transmission system
GB2141007B (en) 1983-06-02 1986-07-23 Standard Telephones Cables Ltd Demodulator logic for frequency shift keyed signals
US4616191A (en) * 1983-07-05 1986-10-07 Raytheon Company Multifrequency microwave source
NL8302482A (nl) * 1983-07-12 1985-02-01 Philips Nv Bandsperfilter van het geschakelde capaciteiten type.
US4663744A (en) 1983-08-31 1987-05-05 Terra Marine Engineering, Inc. Real time seismic telemetry system
US4591930A (en) 1983-09-23 1986-05-27 Eastman Kodak Company Signal processing for high resolution electronic still camera
GB2149244B (en) * 1983-10-29 1987-01-21 Standard Telephones Cables Ltd Digital demodulator arrangement for quadrature signals
FR2554994B1 (fr) 1983-11-15 1989-05-26 Thomson Csf Dispositif de generation d'une frequence fractionnaire d'une frequence de reference
JPH0793553B2 (ja) 1983-11-18 1995-10-09 株式会社日立製作所 スイッチド・キャパシタ・フィルタ
US4660164A (en) 1983-12-05 1987-04-21 The United States Of America As Represented By The Secretary Of The Navy Multiplexed digital correlator
US4577157A (en) * 1983-12-12 1986-03-18 International Telephone And Telegraph Corporation Zero IF receiver AM/FM/PM demodulator using sampling techniques
JPS60130203A (en) 1983-12-19 1985-07-11 Matsushita Electric Ind Co Ltd Frequency converter
US4562414A (en) 1983-12-27 1985-12-31 Motorola, Inc. Digital frequency modulation system and method
JPH0354904B2 (de) 1983-12-28 1991-08-21
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
US4547746A (en) 1984-04-09 1985-10-15 Rockwell International Corporation VSWR Tolerant linear power amplifier
US4970703A (en) 1984-05-10 1990-11-13 Magnavox Government And Industrial Electronics Company Switched capacitor waveform processing circuit
US4601046A (en) 1984-05-15 1986-07-15 Halpern Peter H System for transmitting data through a troposcatter medium
GB2161344A (en) 1984-07-06 1986-01-08 Philips Electronic Associated Transmission of digital data
JPS6160515U (de) * 1984-08-22 1986-04-23
US4621217A (en) * 1984-09-21 1986-11-04 Tektronix, Inc. Anti-aliasing filter circuit for oscilloscopes
US4603300A (en) * 1984-09-21 1986-07-29 General Electric Company Frequency modulation detector using digital signal vector processing
US4596046A (en) 1984-10-01 1986-06-17 Motorola, Inc. Split loop AFC system for a SSB receiver
DE3541031A1 (de) 1984-11-22 1986-05-22 Zellweger Uster Ag Verfahren und vorrichtung zum demodulieren von hochfrequent modulierten signalen mittels digitaler filter und digitaler demodulatoren, sowie anwendung des verfahrens in einem fernsteuerempfaenger
US4716388A (en) 1984-12-24 1987-12-29 Jacobs Gordon M Multiple output allpass switched capacitor filters
US4651210A (en) 1984-12-24 1987-03-17 Rca Corporation Adjustable gamma controller
US4570738A (en) * 1985-01-03 1986-02-18 Yamaha Hatsudoki Kabushiki Kaisha Snow vehicle equipped with wide, low-pressure tires
US4716376A (en) 1985-01-31 1987-12-29 At&T Information Systems Inc. Adaptive FSK demodulator and threshold detector
EP0193899B1 (de) 1985-03-04 1990-06-13 Dymax Corporation Sender-Empfänger mit Aufwärtsmischung zum Verfolgen eines Kennzeichen eines Zellgewebes
US4893316A (en) 1985-04-04 1990-01-09 Motorola, Inc. Digital radio frequency receiver
JPH0347766B2 (de) 1985-04-26 1991-07-22 Tokyo Shibaura Electric Co
DE3516492C2 (de) 1985-05-08 1989-03-16 Standard Elektrik Lorenz Ag, 7000 Stuttgart, De
US4612518A (en) * 1985-05-28 1986-09-16 At&T Bell Laboratories QPSK modulator or demodulator using subharmonic pump carrier signals
US4833445A (en) 1985-06-07 1989-05-23 Sequence Incorporated Fiso sampling system
GB2177273A (en) 1985-06-26 1987-01-14 Philips Electronic Associated R f power amplifier
EP0208982B1 (de) 1985-07-03 1990-09-12 Siemens Aktiengesellschaft Digitale Filterweiche, insbesondere für einen Datenempfänger
GB8517230D0 (en) 1985-07-08 1985-08-14 Philips Electronic Associated Radio system & transmitter
US4634998A (en) * 1985-07-17 1987-01-06 Hughes Aircraft Company Fast phase-lock frequency synthesizer with variable sampling efficiency
US4810904A (en) 1985-07-17 1989-03-07 Hughes Aircraft Company Sample-and-hold phase detector circuit
US4713164A (en) * 1985-07-25 1987-12-15 Confidence Corporation Apparatus for analyzing malodors in the breath
US4785463A (en) 1985-09-03 1988-11-15 Motorola, Inc. Digital global positioning system receiver
US4675882A (en) 1985-09-10 1987-06-23 Motorola, Inc. FM demodulator
GB2181914B (en) 1985-10-22 1989-09-20 Plessey Co Plc Frequency doubling oscillator and heterodyne circuit incorporating same
US5345239A (en) 1985-11-12 1994-09-06 Systron Donner Corporation High speed serrodyne digital frequency translator
US4653117A (en) 1985-11-18 1987-03-24 Motorola, Inc. Dual conversion FM receiver using phase locked direct conversion IF
CA1244139A (en) 1985-12-11 1988-11-01 Larry J. Conway Microwave waveform receiver
US4648021A (en) 1986-01-03 1987-03-03 Motorola, Inc. Frequency doubler circuit and method
US4740675A (en) 1986-04-10 1988-04-26 Hewlett-Packard Company Digital bar code slot reader with threshold comparison of the differentiated bar code signal
US4751468A (en) 1986-05-01 1988-06-14 Tektronix, Inc. Tracking sample and hold phase detector
US4733403A (en) 1986-05-12 1988-03-22 Motorola, Inc. Digital zero IF selectivity section
JPS62264728A (en) 1986-05-12 1987-11-17 Minolta Camera Co Ltd Analog-digital converter
GB2192509B (en) 1986-06-20 1990-01-10 Sgs Microelettronica Spa Sampled data band-pass filter device
US4757538A (en) 1986-07-07 1988-07-12 Tektronix, Inc. Separation of L+R from L-R in BTSC system
US4688253A (en) 1986-07-28 1987-08-18 Tektronix, Inc. L+R separation system
US4791600A (en) 1986-07-28 1988-12-13 Tektronix, Inc. Digital pipelined heterodyne circuit
US4740792A (en) * 1986-08-27 1988-04-26 Hughes Aircraft Company Vehicle location system
JPS6369099A (en) 1986-09-10 1988-03-29 Yamaha Corp Sample/hold circuit
US4745463A (en) 1986-09-25 1988-05-17 Rca Licensing Corporation Generalized chrominance signal demodulator for a sampled data television signal processing system
US4791584A (en) 1986-10-15 1988-12-13 Eastman Kodak Company Sub-nyquist interferometry
NL8603110A (nl) 1986-12-08 1988-07-01 Philips Nv Schakeling voor het terugwinnen van een draaggolf.
JPS63153691A (en) 1986-12-17 1988-06-27 Star Seimitsu Kk Data transfer for semiconductor data carrier system
US4811422A (en) 1986-12-22 1989-03-07 Kahn Leonard R Reduction of undesired harmonic components
US5014304A (en) 1987-01-09 1991-05-07 Sgs-Thomson Microelectronics S.R.L. Method of reconstructing an analog signal, particularly in digital telephony applications, and a circuit device implementing the method
GB8701495D0 (en) 1987-01-23 1987-02-25 Gen Electric Co Plc Electrical signal mixer circuits
US4737969A (en) 1987-01-28 1988-04-12 Motorola, Inc. Spectrally efficient digital modulation method and apparatus
US4806790A (en) 1987-02-16 1989-02-21 Nec Corporation Sample-and-hold circuit
JPS63215185A (en) 1987-03-03 1988-09-07 Matsushita Electric Ind Co Ltd Sub-nyquist coding device and decoding device
FR2612018B1 (fr) 1987-03-06 1989-05-26 Labo Electronique Physique Melangeur hyperfrequences
US4871987A (en) 1987-03-28 1989-10-03 Kabushiki Kaisha Kenwood FSK or am modulator with digital waveform shaping
US4761798A (en) 1987-04-02 1988-08-02 Itt Aerospace Optical Baseband phase modulator apparatus employing digital techniques
US4816704A (en) 1987-04-21 1989-03-28 Fiori David Frequency-to-voltage converter
US4789837A (en) 1987-04-22 1988-12-06 Sangamo Weston, Inc. Switched capacitor mixer/multiplier
FR2615675B1 (fr) 1987-05-21 1989-06-30 Alcatel Espace Procede de demodulation de signaux modules numeriquement et dispositif de mise en oeuvre d'un tel procede
US4855894A (en) 1987-05-25 1989-08-08 Kabushiki Kaisha Kenwood Frequency converting apparatus
US4811362A (en) 1987-06-15 1989-03-07 Motorola, Inc. Low power digital receiver
US4910752A (en) 1987-06-15 1990-03-20 Motorola, Inc. Low power digital receiver
US4772853A (en) 1987-08-12 1988-09-20 Rockwell International Corporation Digital delay FM demodulator with filtered noise dither
US4862121A (en) 1987-08-13 1989-08-29 Texas Instruments Incorporated Switched capacitor filter
GB8719849D0 (en) 1987-08-21 1987-09-30 British Telecomm Fsk discriminator
FR2619973B1 (fr) 1987-08-26 1990-01-05 France Etat Dispositif de filtre echantillonne a capacites commutees
EP0305775B1 (de) 1987-08-29 1994-01-26 Fujitsu Limited FSK-Demodulationsschaltung
GB8720794D0 (en) 1987-09-04 1987-10-14 Marconi Instruments Ltd Frequency synthesizer
US4841265A (en) 1987-09-25 1989-06-20 Nec Corporation Surface acoustic wave filter
US5020149A (en) 1987-09-30 1991-05-28 Conifer Corporation Integrated down converter and interdigital filter apparatus and method for construction thereof
WO1989004093A1 (en) 1987-10-27 1989-05-05 Nysen Paul A Passive universal communicator
US4922452A (en) 1987-11-16 1990-05-01 Analytek, Ltd. 10 Gigasample/sec two-stage analog storage integrated circuit for transient digitizing and imaging oscillography
US4814649A (en) 1987-12-18 1989-03-21 Rockwell International Corporation Dual gate FET mixing apparatus with feedback means
USRE35494E (en) 1987-12-22 1997-04-22 Sgs-Thomson Microelectronics, S.R.L. Integrated active low-pass filter of the first order
US4857928A (en) 1988-01-28 1989-08-15 Motorola, Inc. Method and arrangement for a sigma delta converter for bandpass signals
US4819252A (en) 1988-02-16 1989-04-04 Thomson Consumer Electronics, Inc. Sampled data subsampling apparatus
GB8806202D0 (en) 1988-03-16 1988-04-13 Philips Electronic Associated Direct conversion receiver
NL8800696A (nl) 1988-03-21 1989-10-16 Philips Nv Bemonsteringssysteem, pulsgeneratiesschakeling en bemonsteringsschakeling geschikt voor toepassing in een bemonsteringssysteem, en oscilloscoop voorzien van een bemonsteringssysteem.
US4885671A (en) 1988-03-24 1989-12-05 General Electric Company Pulse-by-pulse current mode controlled power supply
GB8807272D0 (en) 1988-03-26 1988-05-25 Stc Plc Direct conversion radio
US4995055A (en) 1988-06-16 1991-02-19 Hughes Aircraft Company Time shared very small aperture satellite terminals
GB8814412D0 (en) 1988-06-17 1989-05-04 Philips Electronic Associated A zero if receiver
FR2633467B1 (fr) 1988-06-24 1990-08-24 Thomson Csf Multiplicateur de frequence a rang de multiplication programmable
US4944025A (en) 1988-08-09 1990-07-24 At&E Corporation Direct conversion FM receiver with offset
ES2045047T3 (es) 1988-08-31 1994-01-16 Siemens Ag Multiplicador de cuatro cuadrantes de entradas multiples.
GB8820554D0 (en) 1988-08-31 1988-09-28 Philips Electronic Associated Broad bandwidth planar power combiner/divider device
WO1990003699A1 (en) 1988-09-19 1990-04-05 Telefonaktiebolaget Lm Ericsson Log-polar signal processing
US5062122A (en) 1988-09-28 1991-10-29 Kenwood Corporation Delay-locked loop circuit in spread spectrum receiver
US5220583A (en) 1988-10-03 1993-06-15 Motorola, Inc. Digital fm demodulator with a reduced sampling rate
US4972436A (en) 1988-10-14 1990-11-20 Hayes Microcomputer Products, Inc. High performance sigma delta based analog modem front end
US4868908A (en) 1988-10-18 1989-09-19 Ventritex Power supply down-conversion, regulation and low battery detection system
US4943974A (en) 1988-10-21 1990-07-24 Geostar Corporation Detection of burst signal transmissions
US5016242A (en) 1988-11-01 1991-05-14 Gte Laboratories Incorporated Microwave subcarrier generation for fiber optic systems
JPH02131629A (en) 1988-11-12 1990-05-21 Nec Corp Transmitter-receiver for frequency diversity
US4894766A (en) 1988-11-25 1990-01-16 Hazeltine Corporation Power supply frequency converter
US4873492A (en) 1988-12-05 1989-10-10 American Telephone And Telegraph Company, At&T Bell Laboratories Amplifier with modulated resistor gain control
US5280648A (en) 1988-12-06 1994-01-18 Zenith Electronics Corporation Double-balanced high level wide band RF mixer
US5027163A (en) 1988-12-06 1991-06-25 Zenith Electronics Corporation High level wide band RF mixer
GB8828667D0 (en) 1988-12-08 1989-01-11 Philips Electronic Associated Processing sampled analogue electrical signals
FR2640829B1 (fr) 1988-12-20 1991-02-08 Thomson Hybrides Microondes Dispositif pour la modulation ou la demodulation directe en hyperfrequences
US4885587A (en) 1988-12-22 1989-12-05 Westinghouse Electric Corp. Multibit decorrelated spur digital radio frequency memory
JP2576612B2 (ja) 1988-12-28 1997-01-29 日本ビクター株式会社 信号変換装置
US5058107A (en) 1989-01-05 1991-10-15 Hughes Aircraft Company Efficient digital frequency division multiplexed signal receiver
US5251218A (en) 1989-01-05 1993-10-05 Hughes Aircraft Company Efficient digital frequency division multiplexed signal receiver
US4890162A (en) 1989-01-26 1989-12-26 Rca Licensing Corporation Adjustable antialias filters
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
US4888557A (en) 1989-04-10 1989-12-19 General Electric Company Digital subharmonic sampling down-converter
CA2014916C (en) 1989-04-20 1994-11-08 Yoichiro Minami Direct conversion receiver with dithering local carrier frequency for detecting transmitted carrier frequency
EP0393470B1 (de) 1989-04-20 1995-02-22 Siemens Aktiengesellschaft Übertragungsstrecke
FR2646741B1 (fr) 1989-05-03 1994-09-02 Thomson Hybrides Microondes Echantillonneur-bloqueur a haute frequence d'echantillonnage
US4931716A (en) * 1989-05-05 1990-06-05 Milan Jovanovic Constant frequency zero-voltage-switching multi-resonant converter
US4931921A (en) 1989-05-30 1990-06-05 Motorola, Inc. Wide bandwidth frequency doubler
ES2079397T3 (es) * 1989-06-09 1996-01-16 Telefunken Microelectron Disposicion de un circuito para la conversion de frecuencias.
US5157687A (en) 1989-06-29 1992-10-20 Symbol Technologies, Inc. Packet data communication network
DE3925329A1 (de) 1989-07-31 1991-02-07 Siemens Ag Schaltungsanordnung zum regeln der amplitude von videosignalen
US4893341A (en) 1989-08-01 1990-01-09 At&E Corporation Digital receiver operating at sub-nyquist sampling rate
US4992736A (en) 1989-08-04 1991-02-12 General Electric Company Radio frequency receiver for a NMR instrument
US5170414A (en) 1989-09-12 1992-12-08 Siemens Pacesetter, Inc. Adjustable output level signal transmitter
US4982353A (en) 1989-09-28 1991-01-01 General Electric Company Subsampling time-domain digital filter using sparsely clocked output latch
US4955079A (en) 1989-09-29 1990-09-04 Raytheon Company Waveguide excited enhancement and inherent rejection of interference in a subharmonic mixer
US5015963A (en) 1989-09-29 1991-05-14 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Synchronous demodulator
US5012245A (en) 1989-10-04 1991-04-30 At&T Bell Laboratories Integral switched capacitor FIR filter/digital-to-analog converter for sigma-delta encoded digital audio
JPH03132185A (en) 1989-10-17 1991-06-05 Sanyo Electric Co Ltd Television signal converter
US5003621A (en) 1989-11-02 1991-03-26 Motorola, Inc. Direct conversion FM receiver
US5005169A (en) 1989-11-16 1991-04-02 Westinghouse Electric Corp. Frequency division multiplex guardband communication system for sending information over the guardbands
US5063387A (en) 1989-11-20 1991-11-05 Unisys Corporation Doppler frequency compensation circuit
JPH03160803A (en) 1989-11-20 1991-07-10 Pioneer Electron Corp Balanced mixer circuit
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
US5006810A (en) 1989-12-14 1991-04-09 Northern Telecom Limited Second order active filters
US5020745A (en) 1989-12-20 1991-06-04 General Electric Company Reaction wheel fricton compensation using dither
US5023572A (en) * 1989-12-20 1991-06-11 Westinghouse Electric Corp. Voltage-controlled oscillator with rapid tuning loop and method for tuning same
US5239496A (en) 1989-12-27 1993-08-24 Nynex Science & Technology, Inc. Digital parallel correlator
GB9001302D0 (en) 1990-01-19 1990-03-21 Philips Electronic Associated Radio receiver
JPH063861B2 (ja) 1990-02-14 1994-01-12 株式会社東芝 アクティブ・フィルタ
US5263194A (en) 1990-03-07 1993-11-16 Seiko Corp. Zero if radio receiver for intermittent operation
US5230097A (en) 1990-03-09 1993-07-20 Scientific-Atlanta, Inc. Offset frequency converter for phase/amplitude data measurement receivers
US5113094A (en) 1990-03-13 1992-05-12 Wiltron Company Method and apparatus for increasing the high frequency sensitivity response of a sampler frequency converter
US5179730A (en) 1990-03-23 1993-01-12 Rockwell International Corporation Selectivity system for a direct conversion receiver
US5095536A (en) 1990-03-23 1992-03-10 Rockwell International Corporation Direct conversion receiver with tri-phase architecture
US5095533A (en) 1990-03-23 1992-03-10 Rockwell International Corporation Automatic gain control system for a direct conversion receiver
JPH0512891B2 (de) 1990-03-26 1993-02-19 Seiko Epson Corp
JPH043540A (en) 1990-04-19 1992-01-08 Yamaha Corp Spread spectrum communication equipment
GB9010637D0 (en) 1990-05-11 1990-07-04 Secr Defence A high frequency multichannel diversity differential phase shift(dpsk)communications system
US5033110A (en) 1990-05-18 1991-07-16 Northern Telecom Limited Frequency converter for a radio communications system
US5010585A (en) 1990-06-01 1991-04-23 Garcia Rafael A Digital data and analog radio frequency transmitter
US5047860A (en) 1990-06-01 1991-09-10 Gary Rogalski Wireless audio and video signal transmitter and receiver system apparatus
JP2927896B2 (ja) 1990-06-28 1999-07-28 日本電気株式会社 スペクトラム抑制回路
JP2679889B2 (ja) 1990-07-19 1997-11-19 株式会社テック 無線通信装置及びその装置の受信制御方式
JP2817373B2 (ja) 1990-07-30 1998-10-30 松下電器産業株式会社 ダイレクトコンバージョン受信機
GB9017418D0 (en) 1990-08-08 1990-09-19 Gen Electric Co Plc Half frequency mixer
USRE35829E (en) 1990-08-27 1998-06-23 Axonn Corporation Binary phase shift keying modulation system and/or frequency multiplier
US5214787A (en) 1990-08-31 1993-05-25 Karkota Jr Frank P Multiple audio channel broadcast system
JPH04123614A (en) 1990-09-14 1992-04-23 Nec Corp Level converting circuit
JPH04127601A (en) 1990-09-18 1992-04-28 Victor Co Of Japan Ltd Frequency conversion circuit
US5126682A (en) 1990-10-16 1992-06-30 Stanford Telecommunications, Inc. Demodulation method and apparatus incorporating charge coupled devices
KR960000775B1 (ko) 1990-10-19 1996-01-12 세끼모또 타다히로 고주파 전력 증폭기의 출력레벨 제어회로
KR920010383B1 (ko) 1990-10-23 1992-11-27 강진구 방송신호 직접 수신회로
US5222079A (en) 1990-10-25 1993-06-22 Motorola, Inc. Adaptive information signal receiver
JP2801389B2 (ja) 1990-11-02 1998-09-21 キヤノン株式会社 信号処理装置
JPH04177946A (en) 1990-11-09 1992-06-25 Sony Corp Digital demodulator
NL9002489A (nl) 1990-11-15 1992-06-01 Philips Nv Ontvanger.
US5263196A (en) 1990-11-19 1993-11-16 Motorola, Inc. Method and apparatus for compensation of imbalance in zero-if downconverters
FR2669787A1 (fr) 1990-11-23 1992-05-29 Alcatel Telspace Melangeur hyperfrequence symetrique.
US5083050A (en) 1990-11-30 1992-01-21 Grumman Aerospace Corporation Modified cascode mixer circuit
US5136264A (en) 1990-12-05 1992-08-04 At&T Bell Laboratories Transmitter including an fsk modulator having a switched capacitor
US5136267A (en) 1990-12-26 1992-08-04 Audio Precision, Inc. Tunable bandpass filter system and filtering method
US5287516A (en) 1991-01-10 1994-02-15 Landis & Gyr Betriebs Ag Demodulation process for binary data
US5220680A (en) 1991-01-15 1993-06-15 Pactel Corporation Frequency signal generator apparatus and method for simulating interference in mobile communication systems
JP2850160B2 (ja) 1991-01-25 1999-01-27 松下電器産業株式会社 時分割複信無線送受信装置
US5212827A (en) 1991-02-04 1993-05-18 Motorola, Inc. Zero intermediate frequency noise blanker
US5249203A (en) 1991-02-25 1993-09-28 Rockwell International Corporation Phase and gain error control system for use in an i/q direct conversion receiver
JP2749456B2 (ja) 1991-03-06 1998-05-13 三菱電機株式会社 無線通信機
US5150124A (en) 1991-03-25 1992-09-22 Motorola, Inc. Bandpass filter demodulation for FM-CW systems
US5444865A (en) 1991-04-01 1995-08-22 Motorola, Inc. Generating transmit injection from receiver first and second injections
US5278826A (en) 1991-04-11 1994-01-11 Usa Digital Radio Method and apparatus for digital audio broadcasting and reception
US5315583A (en) 1991-04-11 1994-05-24 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
US5682099A (en) 1994-03-14 1997-10-28 Baker Hughes Incorporated Method and apparatus for signal bandpass sampling in measurement-while-drilling applications
US5239686A (en) 1991-04-29 1993-08-24 Echelon Corporation Transceiver with rapid mode switching capability
GB9109617D0 (en) 1991-05-03 1991-06-26 Texas Instruments Ltd Method and apparatus for signal processing
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
WO1992021194A1 (en) 1991-05-10 1992-11-26 Echelon Corporation Power line communication while avoiding determinable interference harmonics
US5355114A (en) 1991-05-10 1994-10-11 Echelon Corporation Reconstruction of signals using redundant channels
US5790587A (en) 1991-05-13 1998-08-04 Omnipoint Corporation Multi-band, multi-mode spread-spectrum communication system
US5337014A (en) 1991-06-21 1994-08-09 Harris Corporation Phase noise measurements utilizing a frequency down conversion/multiplier, direct spectrum measurement technique
US5260970A (en) 1991-06-27 1993-11-09 Hewlett-Packard Company Protocol analyzer pod for the ISDN U-interface
JPH05102899A (ja) 1991-08-16 1993-04-23 Shiyoudenriyoku Kosoku Tsushin Kenkyusho:Kk 多周波通信方式
US5252865A (en) 1991-08-22 1993-10-12 Triquint Semiconductor, Inc. Integrating phase detector
US5151661A (en) 1991-08-26 1992-09-29 Westinghouse Electric Corp. Direct digital FM waveform generator for radar systems
FR2681994B1 (fr) 1991-09-26 1994-09-30 Alcatel Telspace Dispositif de transmission numerique comportant un recepteur a demodulation coherente realisee directement en hyperfrequence.
US5218562A (en) 1991-09-30 1993-06-08 American Neuralogix, Inc. Hamming data correlator having selectable word-length
JP2800500B2 (ja) 1991-10-01 1998-09-21 松下電器産業株式会社 バースト送信出力制御回路
US5307517A (en) 1991-10-17 1994-04-26 Rich David A Adaptive notch filter for FM interference cancellation
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.
US5222144A (en) 1991-10-28 1993-06-22 Ford Motor Company Digital quadrature radio receiver with two-step processing
US5204642A (en) 1991-10-31 1993-04-20 Advanced Micro Devices, Inc. Frequency controlled recursive oscillator having sinusoidal output
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
US5263198A (en) 1991-11-05 1993-11-16 Honeywell Inc. Resonant loop resistive FET mixer
ES2104798T3 (es) 1991-11-27 1997-10-16 Italtel Spa Multiplicador de frecuencia de radiofrecuencia que comprende un circuito de control automatico de nivel.
DE4241882A1 (de) 1991-12-13 1993-06-17 Clarion Co Ltd
JPH05168041A (ja) 1991-12-16 1993-07-02 Sony Corp 映像信号記録装置
JPH05175730A (ja) 1991-12-25 1993-07-13 Fujitsu Ten Ltd 時分割式ダイレクト受信機
JPH05175734A (ja) 1991-12-25 1993-07-13 Matsushita Electric Ind Co Ltd Fm復調器
JPH05183456A (ja) 1991-12-27 1993-07-23 Nec Corp 制御信号発生装置
US5172019A (en) 1992-01-17 1992-12-15 Burr-Brown Corporation Bootstrapped FET sampling switch
US5590155A (en) 1992-10-30 1996-12-31 Kabushiki Kaisha Toshiba Equipment for generating a transmit signal from first and second digital signals
JP2842725B2 (ja) 1992-02-17 1999-01-06 日本電気エンジニアリング株式会社 ディジタル・アナログ変換器
JPH05259745A (ja) 1992-03-11 1993-10-08 Sumitomo Electric Ind Ltd ミキサ回路
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
US5222250A (en) 1992-04-03 1993-06-22 Cleveland John F Single sideband radio signal processing system
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
US5410541A (en) 1992-05-04 1995-04-25 Ivon International, Inc. System for simultaneous analog and digital communications over an analog channel
JPH05315608A (ja) * 1992-05-13 1993-11-26 Tadahiro Omi 半導体装置
US5400084A (en) 1992-05-14 1995-03-21 Hitachi America, Ltd. Method and apparatus for NTSC signal interference cancellation using recursive digital notch filters
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
US5325204A (en) 1992-05-14 1994-06-28 Hitachi America, Ltd. Narrowband interference cancellation through the use of digital recursive notch filters
JPH05327356A (ja) 1992-05-22 1993-12-10 Sanyo Electric Co Ltd 周波数変換装置
WO1993026094A1 (en) 1992-06-08 1993-12-23 Motorola, Inc. Receiver automatic gain control
JP3166321B2 (ja) 1992-07-01 2001-05-14 日本電気株式会社 変調信号送信システム
US5592415A (en) 1992-07-06 1997-01-07 Hitachi, Ltd. Non-volatile semiconductor memory
US5465071A (en) 1992-07-13 1995-11-07 Canon Kabushiki Kaisha Information signal processing apparatus
US5465415A (en) 1992-08-06 1995-11-07 National Semiconductor Corporation Even order term mixer
JPH0658705A (ja) 1992-08-12 1994-03-04 Mishima Kosan Co Ltd 金属物体の距離検出装置
US5493581A (en) 1992-08-14 1996-02-20 Harris Corporation Digital down converter and method
WO1994005087A1 (en) 1992-08-25 1994-03-03 Wireless Access, Inc. A direct conversion receiver for multiple protocols
FR2695211B1 (fr) 1992-08-26 1994-11-18 Kollmorgen Artus Dispositif et procédé d'analyse de signaux ILS.
WO1994006206A1 (en) 1992-08-27 1994-03-17 Motorola Inc. Push pull buffer with noise cancelling symmetry
US5471162A (en) 1992-09-08 1995-11-28 The Regents Of The University Of California High speed transient sampler
JPH0690225A (ja) 1992-09-09 1994-03-29 Shodenryoku Kosoku Tsushin Kenkyusho:Kk ダイバーシティ無線受信機
US5339395A (en) 1992-09-17 1994-08-16 Delco Electronics Corporation Interface circuit for interfacing a peripheral device with a microprocessor operating in either a synchronous or an asynchronous mode
FR2696598B1 (fr) * 1992-10-01 1994-11-04 Sgs Thomson Microelectronics Circuit élévateur de tension de type pompe de charge avec oscillateur bootstrapé.
US5594470A (en) 1992-10-02 1997-01-14 Teletransaction, Inc. Highly integrated portable electronic work slate unit
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
JPH06130821A (ja) 1992-10-19 1994-05-13 Fuji Photo Film Co Ltd 湿式電子写真現像装置
US5428640A (en) 1992-10-22 1995-06-27 Digital Equipment Corporation Switch circuit for setting and signaling a voltage level
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 シャープ株式会社 フィルタ回路
DE69329140D1 (de) 1992-11-26 2000-09-07 Koninkl Philips Electronics Nv Direktumsetzempfänger
US5438692A (en) 1992-11-26 1995-08-01 U.S. Philips Corporation Direct conversion receiver
US5339459A (en) 1992-12-03 1994-08-16 Motorola, Inc. High speed sample and hold circuit and radio constructed therewith
DE69427378D1 (de) 1993-01-08 2001-07-05 Sony Corp Monolithische integrierte Mikrowellenschaltung
JP3025384B2 (ja) 1993-01-13 2000-03-27 シャープ株式会社 デジタルfm復調装置
US5661424A (en) 1993-01-27 1997-08-26 Gte Laboratories Incorporated Frequency hopping synthesizer using dual gate amplifiers
JPH06237276A (ja) 1993-02-12 1994-08-23 Fujitsu Ltd 直交変調器
CA2154180C (en) 1993-02-17 1999-04-06 Alan L. Wilson Multiple-modulation communication system
JP3400003B2 (ja) 1993-02-18 2003-04-28 株式会社日立国際電気 複素変復調方式
GB2308514B (en) 1993-03-01 1997-09-17 Texas Instruments Ltd A digital oscillator
US5389839A (en) 1993-03-03 1995-02-14 Motorola, Inc. Integratable DC blocking circuit
CA2132026C (en) 1993-03-04 2007-10-30 Per Anders Lennart Stein Modular radio communications system
FR2702903B1 (fr) 1993-03-17 1995-05-24 Europ Agence Spatiale Récepteur de signaux radiofréquences.
CA2156430C (en) 1993-03-31 2000-03-21 Ian Christopher Smith Generation of optical signals with rf components
US5495200A (en) 1993-04-06 1996-02-27 Analog Devices, Inc. Double sampled biquad switched capacitor filter
US5523760A (en) 1993-04-12 1996-06-04 The Regents Of The University Of California Ultra-wideband receiver
US5392460A (en) 1993-04-23 1995-02-21 Nokia Mobile Phones Ltd. Dual mode radiotelephone terminal selectively operable for frequency modulated or phase modulated operation
US5465418A (en) 1993-04-29 1995-11-07 Drexel University Self-oscillating mixer circuits and methods therefor
US5369404A (en) 1993-04-30 1994-11-29 The Regents Of The University Of California Combined angle demodulator and digitizer
US5479447A (en) 1993-05-03 1995-12-26 The Board Of Trustees Of The Leland Stanford, Junior University Method and apparatus for adaptive, variable bandwidth, high-speed data transmission of a multicarrier signal over digital subscriber lines
US5375146A (en) 1993-05-06 1994-12-20 Comsat Corporation Digital frequency conversion and tuning scheme for microwave radio receivers and transmitters
US5400363A (en) 1993-05-07 1995-03-21 Loral Aerospace Corp. Quadrature compensation for orthogonal signal channels
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
US5438329A (en) 1993-06-04 1995-08-01 M & Fc Holding Company, Inc. Duplex bi-directional multi-mode remote instrument reading and telemetry system
US5410743A (en) 1993-06-14 1995-04-25 Motorola, Inc. Active image separation mixer
CA2120077A1 (en) 1993-06-17 1994-12-18 Louis Labreche System and method for modulating a carrier frequency
EP0656161A4 (de) 1993-06-21 1995-11-02 Motorola Inc Frequenzumsetzungsvorrichtung und verfahren in einer kommunikationseinrichtung.
US5423082A (en) 1993-06-24 1995-06-06 Motorola, Inc. Method for a transmitter to compensate for varying loading without an isolator
CA2125468C (en) 1993-06-28 1998-04-21 Danny Thomas Pinckley Method of selectively reducing spectral components in a wideband radio frequency signal
US5559468A (en) 1993-06-28 1996-09-24 Motorola, Inc. Feedback loop closure in a linear transmitter
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
US5347280A (en) 1993-07-02 1994-09-13 Texas Instruments Deutschland Gmbh Frequency diversity transponder arrangement
GB9313981D0 (en) 1993-07-06 1993-08-18 Plessey Semiconductors Ltd Wide-band microwave modulator arrangements
JP3189508B2 (ja) 1993-07-08 2001-07-16 株式会社村田製作所 弾性表面波フィルタ
JP3139225B2 (ja) 1993-07-08 2001-02-26 株式会社村田製作所 弾性表面波フィルタ
US5949471A (en) 1993-07-29 1999-09-07 Gemstar Development Corporation Apparatus and method for improved parental control of television use
US5428638A (en) 1993-08-05 1995-06-27 Wireless Access Inc. Method and apparatus for reducing power consumption in digital communications devices
US5440311A (en) 1993-08-06 1995-08-08 Martin Marietta Corporation Complementary-sequence pulse radar with matched filtering and Doppler tolerant sidelobe suppression preceding Doppler filtering
FI107855B (fi) 1993-09-10 2001-10-15 Nokia Mobile Phones Ltd Vt-signaalin demodulointi sigma-delta-muuntimella
US5617451A (en) 1993-09-13 1997-04-01 Matsushita Electric Industrial Co., Ltd. Direct-conversion receiver for digital-modulation signal with signal strength detection
GB2282030B (en) 1993-09-14 1997-09-24 Plessey Semiconductors Ltd Direct conversion receiver
DE4420376C2 (de) 1993-09-22 1998-09-17 Hewlett Packard Co Quadraturmodulator
US5454007A (en) 1993-09-24 1995-09-26 Rockwell International Corporation Arrangement for and method of concurrent quadrature downconversion input sampling of a bandpass signal
US5481570A (en) 1993-10-20 1996-01-02 At&T Corp. Block radio and adaptive arrays for wireless systems
US5434546A (en) 1993-11-15 1995-07-18 Palmer; James K. Circuit for simultaneous amplitude modulation of a number of signals
US5539770A (en) 1993-11-19 1996-07-23 Victor Company Of Japan, Ltd. Spread spectrum modulating apparatus using either PSK or FSK primary modulation
US5422909A (en) 1993-11-30 1995-06-06 Motorola, Inc. Method and apparatus for multi-phase component downconversion
GB9326464D0 (en) 1993-12-24 1994-02-23 Philips Electronics Uk Ltd Receiver having an adjustable bandwidth filter
US5461646A (en) 1993-12-29 1995-10-24 Tcsi Corporation Synchronization apparatus for a diversity receiver
JP2638462B2 (ja) * 1993-12-29 1997-08-06 日本電気株式会社 半導体装置
KR100217715B1 (ko) 1993-12-31 1999-09-01 윤종용 직접확산/부호분할 다중접근 시스템에서의 업-링크 접근 시스템
US5454009A (en) 1994-01-13 1995-09-26 Scientific-Atlanta, Inc. Method and apparatus for providing energy dispersal using frequency diversity in a satellite communications system
US5574755A (en) 1994-01-25 1996-11-12 Philips Electronics North America Corporation I/Q quadraphase modulator circuit
US5463356A (en) 1994-01-28 1995-10-31 Palmer; James K. FM band multiple signal modulator
DE69522245T2 (de) 1994-01-31 2002-05-16 Hitachi Electronics Fernsehkamera mit digitaler Videosignalbearbeitungsschaltung
US5446421A (en) 1994-02-02 1995-08-29 Thomson Consumer Electronics, Inc. Local oscillator phase noise cancelling modulation technique
US5410270A (en) 1994-02-14 1995-04-25 Motorola, Inc. Differential amplifier circuit having offset cancellation and method therefor
US5552789A (en) 1994-02-14 1996-09-03 Texas Instruments Deutschland Gmbh Integrated vehicle communications system
US5483600A (en) 1994-02-14 1996-01-09 Aphex Systems, Ltd. Wave dependent compressor
US5523719A (en) 1994-02-15 1996-06-04 Rockwell International Corporation Component insensitive, analog bandpass filter
US5809060A (en) 1994-02-17 1998-09-15 Micrilor, Inc. High-data-rate wireless local-area network
GB2286950B (en) 1994-02-22 1998-06-17 Roke Manor Research A direct conversion receiver
US5557641A (en) 1994-03-04 1996-09-17 Stanford Telecommunications, Inc. Charge-coupled-device based transmitters and receivers
US5483549A (en) 1994-03-04 1996-01-09 Stanford Telecommunications, Inc. Receiver having for charge-coupled-device based receiver signal processing
CN1149366A (zh) 1994-03-31 1997-05-07 塞里迪安公司阿比特龙分公司 用来把码包括到音频信号中并且解码的设备和方法
DE69522447T2 (de) 1994-04-12 2002-05-02 Koninkl Philips Electronics Nv Puls-zähl-fm-demodulator und empfänger damit
US5412352A (en) 1994-04-18 1995-05-02 Stanford Telecommunications, Inc. Modulator having direct digital synthesis for broadband RF transmission
JPH07307620A (ja) 1994-05-11 1995-11-21 Fujitsu Ltd ボトム検出回路
EP0683571B1 (de) 1994-05-16 2003-07-23 SANYO ELECTRIC Co., Ltd. Einrichtung zum Diversity-Empfang
US5416449A (en) 1994-05-23 1995-05-16 Synergy Microwave Corporation Modulator with harmonic mixers
US5564097A (en) 1994-05-26 1996-10-08 Rockwell International Spread intermediate frequency radio receiver with adaptive spurious rejection
FR2720880B1 (fr) 1994-06-06 1996-08-02 Fournier Jean Michel Dispositif de suppression du signal image d'un signal de base transposé à une fréquence intermédiaire.
US5640415A (en) 1994-06-10 1997-06-17 Vlsi Technology, Inc. Bit error performance of a frequency hopping, radio communication system
US5517688A (en) 1994-06-20 1996-05-14 Motorola, Inc. MMIC FET mixer and method
US5907149A (en) 1994-06-27 1999-05-25 Polaroid Corporation Identification card with delimited usage
EP0691733A3 (de) 1994-07-08 1996-01-31 Victor Company Of Japan
WO1996002977A1 (en) 1994-07-13 1996-02-01 Stanford Telecommunications, Inc. Method and apparatus for alias-driven frequency downconversion (mixing)
EP0696854A1 (de) 1994-08-08 1996-02-14 THOMSON multimedia S.A. Rundfunkempfänger für analoge und digitale Signale
US5495500A (en) 1994-08-09 1996-02-27 Intermec Corporation Homodyne radio architecture for direct sequence spread spectrum data reception
US5703584A (en) 1994-08-22 1997-12-30 Adaptec, Inc. Analog data acquisition system
JP3142222B2 (ja) 1994-08-22 2001-03-07 松下電器産業株式会社 スペクトル拡散通信同期方法とその回路装置
WO1996008078A1 (en) 1994-09-02 1996-03-14 Philips Electronics N.V. Receiver with quadrature decimation stage, method of processing digital signals
US5551076A (en) 1994-09-06 1996-08-27 Motorola, Inc. Circuit and method of series biasing a single-ended mixer
JP3577754B2 (ja) 1994-09-09 2004-10-13 ソニー株式会社 通信方法及び装置
JP3178997B2 (ja) 1994-09-16 2001-06-25 株式会社東芝 周波数変換回路およびこの周波数変換回路を備えた無線通信装置
US5742189A (en) 1994-09-16 1998-04-21 Kabushiki Kaisha Toshiba Frequency conversion circuit and radio communication apparatus with the same
US5638396A (en) 1994-09-19 1997-06-10 Textron Systems Corporation Laser ultrasonics-based material analysis system and method
KR970000660B1 (ko) 1994-09-27 1997-01-16 양승택 저속데이타 전용 위성통신 단말지구국의 주파수상향 고출력증폭기(tbu)
US5757299A (en) 1994-09-30 1998-05-26 Yamaha Corporation Analog-Digital converter using delta sigma modulation digital filtering, and gain-scaling
WO1996011527A1 (en) 1994-10-07 1996-04-18 Massachusetts Institute Of Technology Quadrature sampling system and hybrid equalizer
US5920842A (en) 1994-10-12 1999-07-06 Pixel Instruments Signal synchronization
GB2324919B (en) 1994-10-12 1999-01-27 Hewlett Packard Co Modulation and frequency conversion by time sharing
US5523726A (en) 1994-10-13 1996-06-04 Westinghouse Electric Corporation Digital quadriphase-shift keying modulator
US5768323A (en) 1994-10-13 1998-06-16 Westinghouse Electric Corporation Symbol synchronizer using modified early/punctual/late gate technique
US5471665A (en) 1994-10-18 1995-11-28 Motorola, Inc. Differential DC offset compensation circuit
US5805460A (en) 1994-10-21 1998-09-08 Alliedsignal Inc. Method for measuring RF pulse rise time, fall time and pulse width
JP3581448B2 (ja) 1994-10-21 2004-10-27 キヤノン株式会社 スペクトラム拡散通信装置
US5953642A (en) * 1994-10-26 1999-09-14 Siemens Aktiengesellschaft System for contactless power and data transmission
GB2294599B (en) 1994-10-28 1999-04-14 Marconi Instruments Ltd A frequency synthesiser
US5650785A (en) 1994-11-01 1997-07-22 Trimble Navigation Limited Low power GPS receiver
US5678226A (en) 1994-11-03 1997-10-14 Watkins Johnson Company Unbalanced FET mixer
DE69426650T2 (de) 1994-11-07 2001-09-06 Alcatel Sa Mischer für Sender, mit einem Eingang im Strom-Modus
CN1087120C (zh) 1994-11-10 2002-07-03 松下电器产业株式会社 直接变频接收机
JP2950739B2 (ja) 1994-11-11 1999-09-20 沖電気工業株式会社 デュアルモード送信装置
US5465410A (en) 1994-11-22 1995-11-07 Motorola, Inc. Method and apparatus for automatic frequency and bandwidth control
JP3478508B2 (ja) 1994-11-22 2003-12-15 ユニデン株式会社 無線通信装置
EP0714035A1 (de) * 1994-11-24 1996-05-29 The Furukawa Electric Co., Ltd. Radargerät
US5680418A (en) 1994-11-28 1997-10-21 Ericsson, Inc. Removing low frequency interference in a digital FM receiver
WO1996017441A1 (en) 1994-11-30 1996-06-06 Matsushita Electric Industrial Co., Ltd. Receiving circuit
US5648985A (en) 1994-11-30 1997-07-15 Rockwell Semiconductor Systems, Inc. Universal radio architecture for low-tier personal communication system
US5515014A (en) 1994-11-30 1996-05-07 At&T Corp. Interface between SAW filter and Gilbert cell mixer
US5621455A (en) 1994-12-01 1997-04-15 Objective Communications, Inc. Video modem for transmitting video data over ordinary telephone wires
US5903178A (en) 1994-12-16 1999-05-11 Matsushita Electronics Corporation Semiconductor integrated circuit
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
US5724653A (en) 1994-12-20 1998-03-03 Lucent Technologies Inc. Radio receiver with DC offset correction circuit
KR100427836B1 (ko) 1994-12-23 2004-10-14 퀄컴 인코포레이티드 듀얼모드fm/cdma통신시스템
JP3084196B2 (ja) 1994-12-27 2000-09-04 アイコム株式会社 無線通信機
US5579347A (en) 1994-12-28 1996-11-26 Telefonaktiebolaget Lm Ericsson Digitally compensated direct conversion receiver
US5668836A (en) 1994-12-29 1997-09-16 Motorola, Inc. Split frequency band signal digitizer and method
US5748683A (en) 1994-12-29 1998-05-05 Motorola, Inc. Multi-channel transceiver having an adaptive antenna array and method
US5572262A (en) 1994-12-29 1996-11-05 Philips Electronics North America Corporation Receiver based methods and devices for combating co-channel NTSC interference in digital transmission
US5579341A (en) 1994-12-29 1996-11-26 Motorola, Inc. Multi-channel digital transceiver and method
JP2571033B2 (ja) 1994-12-30 1997-01-16 日本電気株式会社 送信電力増幅回路の出力制御回路
JPH08223065A (ja) 1995-02-13 1996-08-30 Toshiba Corp 周波数変換器
US5995030A (en) 1995-02-16 1999-11-30 Advanced Micro Devices Apparatus and method for a combination D/A converter and FIR filter employing active current division from a single current source
DE69624020D1 (de) 1995-02-21 2002-11-07 Tait Electronics Ltd Nullzwischenfrequenz-Empfänger
US5915278A (en) 1995-02-27 1999-06-22 Mallick; Brian C. System for the measurement of rotation and translation for modal analysis
FR2731310B1 (fr) 1995-03-02 1997-04-11 Alcatel Telspace Dispositif et procede de reception multidebit a filtrage unique d'interpolation et d'adaptation
US5606731A (en) 1995-03-07 1997-02-25 Motorola, Inc. Zerox-IF receiver with tracking second local oscillator and demodulator phase locked loop oscillator
FR2731853B1 (fr) 1995-03-17 1997-06-06 Valeo Electronique Procede et dispositif de demodulation par echantillonnage, notamment pour systeme d'alarme de vehicule automobile
US5483193A (en) 1995-03-24 1996-01-09 Ford Motor Company Circuit for demodulating FSK signals
US5697074A (en) 1995-03-30 1997-12-09 Nokia Mobile Phones Limited Dual rate power control loop for a transmitter
US5737035A (en) 1995-04-21 1998-04-07 Microtune, Inc. Highly integrated television tuner on a single microcircuit
JPH08307159A (ja) 1995-04-27 1996-11-22 Sony Corp 高周波増幅回路、送信装置、及び受信装置
US5640424A (en) 1995-05-16 1997-06-17 Interstate Electronics Corporation Direct downconverter circuit for demodulator in digital data transmission system
US5640698A (en) 1995-06-06 1997-06-17 Stanford University Radio frequency signal reception using frequency shifting by discrete-time sub-sampling down-conversion
US5692020A (en) 1995-06-07 1997-11-25 Discovision Associates Signal processing apparatus and method
US5764087A (en) 1995-06-07 1998-06-09 Aai Corporation Direct digital to analog microwave frequency signal simulator
GB9511551D0 (en) 1995-06-07 1995-08-02 Discovision Ass Signal processing system
KR100395584B1 (ko) 1995-06-08 2004-02-11 코닌클리케 필립스 일렉트로닉스 엔.브이. 위상변조기와주파수멀티플라이어를갖는전송기를이용한전송시스템
US5812786A (en) 1995-06-21 1998-09-22 Bell Atlantic Network Services, Inc. Variable rate and variable mode transmission system
US5675392A (en) 1995-06-21 1997-10-07 Sony Corporation Mixer with common-mode noise rejection
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
US5903827A (en) 1995-07-07 1999-05-11 Fujitsu Compound Semiconductor, Inc. Single balanced frequency downconverter for direct broadcast satellite transmissions and hybrid ring signal combiner
JP3189631B2 (ja) 1995-07-10 2001-07-16 株式会社村田製作所 ミキサ
US5691629A (en) 1995-07-13 1997-11-25 The United States Of America As Represented By The Secretary Of The Air Force Non-volatile power supply having energy efficient DC/DC voltage converters with a small storage capacitor
US5745846A (en) 1995-08-07 1998-04-28 Lucent Technologies, Inc. Channelized apparatus for equalizing carrier powers of multicarrier signal
JP4091671B2 (ja) 1995-08-08 2008-05-28 松下電器産業株式会社 直流オフセット補償装置
US5757864A (en) 1995-08-17 1998-05-26 Rockwell Semiconductor Systems, Inc. Receiver with filters offset correction
US5822373A (en) 1995-08-17 1998-10-13 Pittway Corporation Method and apparatus for optimization of wireless communications
EP0846333A4 (de) 1995-08-21 2000-05-10 Diasense Inc Synchrone detektion für photoleitende detektoren
US6026286A (en) 1995-08-24 2000-02-15 Nortel Networks Corporation RF amplifier, RF mixer and RF receiver
US5636140A (en) 1995-08-25 1997-06-03 Advanced Micro Devices, Inc. System and method for a flexible MAC layer interface in a wireless local area network
US5563550A (en) 1995-08-28 1996-10-08 Lockheed Martin Corporation Recovery of data from amplitude modulated signals with self-coherent demodulation
US5859878A (en) 1995-08-31 1999-01-12 Northrop Grumman Corporation Common receive module for a programmable digital radio
US6072994A (en) 1995-08-31 2000-06-06 Northrop Grumman Corporation Digitally programmable multifunction radio system architecture
US5903823A (en) 1995-09-19 1999-05-11 Fujitsu Limited Radio apparatus with distortion compensating function
US5602847A (en) 1995-09-27 1997-02-11 Lucent Technologies Inc. Segregated spectrum RF downconverter for digitization systems
DE69630512T2 (de) 1995-09-29 2004-05-06 Matsushita Electric Industrial Co., Ltd., Kadoma Leistungsverstärker und kommunikationsvorrichtung
FR2739938B1 (fr) 1995-10-17 1997-11-07 Sextant Avionique Recepteur de determination d'une position a partir de reseaux de satellites
GB9521769D0 (en) 1995-10-24 1996-01-03 Philips Electronics Nv Transmitter
JPH09121124A (ja) 1995-10-25 1997-05-06 Fujitsu Ltd ダブルバランス型ミキサ回路
US6034566A (en) * 1995-11-07 2000-03-07 Takeshi Ikeda Tuning amplifier
FR2741221B1 (fr) 1995-11-13 1997-12-05 Alcatel Telspace Etage de demodulation directe d'un signal module en quadrature de phase et recepteur comprenant un tel etage de demodulation
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
US5778022A (en) 1995-12-06 1998-07-07 Rockwell International Corporation Extended time tracking and peak energy in-window demodulation for use in a direct sequence spread spectrum system
US5909460A (en) 1995-12-07 1999-06-01 Ericsson, Inc. Efficient apparatus for simultaneous modulation and digital beamforming for an antenna array
JP3406443B2 (ja) 1995-12-08 2003-05-12 日本ビクター株式会社 無線伝送装置
US5862173A (en) 1995-12-11 1999-01-19 Ericsson Inc. Re-orthogonalization of wideband CDMA signals
US5887001A (en) 1995-12-13 1999-03-23 Bull Hn Information Systems Inc. Boundary scan architecture analog extension with direct connections
FR2742620B1 (fr) 1995-12-15 1998-02-20 Matra Communication Dispositif melangeur a rejection de frequence image
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
US5659372A (en) 1995-12-22 1997-08-19 Samsung Electronics Co., Ltd. Digital TV detector responding to final-IF signal with vestigial sideband below full sideband in frequency
JP3338747B2 (ja) 1995-12-28 2002-10-28 日本電気株式会社 干渉波除去装置
FR2743231B1 (fr) 1995-12-29 1998-01-30 Thomson Multimedia Sa Procede et dispositif de diversite de frequence d'une porteuse shf
FR2743227B1 (fr) 1995-12-29 1998-03-06 Thomson Broadcast Systems Dispositif demodulateur de frequence monolithiquement integrable
US7536331B1 (en) 1996-01-02 2009-05-19 Robert W. Fletcher Method for determining the risk associated with licensing or enforcing intellectual property
US5736895A (en) 1996-01-16 1998-04-07 Industrial Technology Research Institute Biquadratic switched-capacitor filter using single operational amplifier
US5901347A (en) 1996-01-17 1999-05-04 Motorola, Inc. Fast automatic gain control circuit and method for zero intermediate frequency receivers and radiotelephone using same
US5864754A (en) 1996-02-05 1999-01-26 Hotto; Robert System and method for radio signal reconstruction using signal processor
US5697091A (en) 1996-02-07 1997-12-09 Ford Motor Company Distortion-free chopper-based signal mixer
US6122287A (en) 1996-02-09 2000-09-19 Microcom Systems, Inc. Method and apparatus for detecting switched network protocols
US6546061B2 (en) 1996-10-02 2003-04-08 Telefonaktiebolaget Lm Ericsson (Publ) Signal transformation method and apparatus
US5732333A (en) 1996-02-14 1998-03-24 Glenayre Electronics, Inc. Linear transmitter using predistortion
JP2782057B2 (ja) 1996-02-19 1998-07-30 国際電気株式会社 スペクトル拡散通信方式のための逆拡散回路
US5729829A (en) 1996-02-29 1998-03-17 American Nucleonics Corporation Interference mitigation method and apparatus for multiple collocated transceivers
US5689413A (en) 1996-03-04 1997-11-18 Motorola, Inc. Voltage convertor for a portable electronic device
US6160280A (en) 1996-03-04 2000-12-12 Motorola, Inc. Field effect transistor
GB2311194B (en) 1996-03-12 2000-05-31 Nokia Mobile Phones Ltd Transmitting and receiving radio signals
JP3712291B2 (ja) 1996-03-12 2005-11-02 和夫 坪内 表面弾性波デバイスを用いた無線スイッチ装置
US5758274A (en) 1996-03-13 1998-05-26 Symbol Technologies, Inc. Radio frequency receiver with automatic gain control
JPH09251651A (ja) 1996-03-15 1997-09-22 Toshiba Corp 位相差電圧生成回路
DE19610760A1 (de) 1996-03-19 1997-09-25 Telefunken Microelectron Sende-Empfangs-Umschalter mit Halbleitern
CN1165438A (zh) 1996-03-19 1997-11-19 三星电子株式会社 输出稳定频率的频率转换器
US5663878A (en) 1996-03-21 1997-09-02 Unitrode Corporation Apparatus and method for generating a low frequency AC signal
US5663986A (en) 1996-03-25 1997-09-02 The United States Of America As Represented By The Secretary Of The Navy Apparatus and method of transmitting data over a coaxial cable in a noisy environment
JP3125675B2 (ja) 1996-03-29 2001-01-22 三菱電機株式会社 容量型センサインターフェース回路
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
FI100286B (fi) 1996-04-01 1997-10-31 Nokia Mobile Phones Ltd Lähetin/vastaanotin RF-signaalin lähettämiseksi ja vastaanottamiseksi kahdella taajuusalueella
JPH10229378A (ja) 1996-04-02 1998-08-25 Sharp Corp マッチドフィルタ
DE69735031D1 (de) 1996-04-04 2006-03-30 New Japan Radio Corp Ltd Korrelator für Spreizspektrumsignale
WO1997038490A1 (en) 1996-04-08 1997-10-16 Romano Harry A Interrupt modulation method and appratus
JP3255843B2 (ja) 1996-04-17 2002-02-12 沖電気工業株式会社 デュアルモード無線装置におけるディジタル・アナログ共用回路
US5754056A (en) 1996-04-23 1998-05-19 David Sarnoff Research Center, Inc. Charge detector with long integration time
EP0804038B1 (de) 1996-04-26 2004-07-07 Hamamatsu Photonics K.K. Festkörperbildaufnahmegerät
US5768118A (en) 1996-05-01 1998-06-16 Compaq Computer Corporation Reciprocating converter
US5787125A (en) 1996-05-06 1998-07-28 Motorola, Inc. Apparatus for deriving in-phase and quadrature-phase baseband signals from a communication signal
US5729577A (en) 1996-05-21 1998-03-17 Motorola, Inc. Signal processor with improved efficiency
US6067329A (en) 1996-05-31 2000-05-23 Matsushita Electric Industrial Co., Ltd. VSB demodulator
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
US5724002A (en) 1996-06-13 1998-03-03 Acrodyne Industries, Inc. Envelope detector including sample-and-hold circuit controlled by preceding carrier pulse peak(s)
US5841324A (en) 1996-06-20 1998-11-24 Harris Corporation Charge-based frequency locked loop and method
US5930301A (en) 1996-06-25 1999-07-27 Harris Corporation Up-conversion mechanism employing side lobe-selective pre-distortion filter and frequency replica-selecting bandpass filter respectively installed upstream and downstream of digital-to-analog converter
US5884154A (en) * 1996-06-26 1999-03-16 Raytheon Company Low noise mixer circuit having passive inductor elements
DE69731358T2 (de) 1996-06-28 2005-11-03 Koninklijke Philips Electronics N.V. Verfahren zur vereinfachung der demodulation in einem mehrfachträger-übertragungssystem
US5898912A (en) 1996-07-01 1999-04-27 Motorola, Inc. Direct current (DC) offset compensation method and apparatus
US6005903A (en) 1996-07-08 1999-12-21 Mendelovicz; Ephraim Digital correlator
US5793801A (en) 1996-07-09 1998-08-11 Telefonaktiebolaget Lm Ericsson Frequency domain signal reconstruction compensating for phase adjustments to a sampling signal
US5896304A (en) 1996-07-12 1999-04-20 General Electric Company Low power parallel correlator for measuring correlation between digital signal segments
US5699006A (en) 1996-07-12 1997-12-16 Motorola, Inc. DC blocking apparatus and technique for sampled data filters
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
US5911123A (en) 1996-07-31 1999-06-08 Siemens Information And Communications Networks, Inc. System and method for providing wireless connections for single-premises digital telephones
US5802463A (en) 1996-08-20 1998-09-01 Advanced Micro Devices, Inc. Apparatus and method for receiving a modulated radio frequency signal by converting the radio frequency signal to a very low intermediate frequency signal
US6330244B1 (en) 1996-09-05 2001-12-11 Jerome Swartz System for digital radio communication between a wireless lan and a PBX
US5956345A (en) 1996-09-13 1999-09-21 Lucent Technologies Inc. IS-95 compatible wideband communication scheme
US5705949A (en) 1996-09-13 1998-01-06 U.S. Robotics Access Corp. Compensation method for I/Q channel imbalance errors
US5894496A (en) 1996-09-16 1999-04-13 Ericsson Inc. Method and apparatus for detecting and compensating for undesired phase shift in a radio transceiver
US6018553A (en) 1996-09-18 2000-01-25 Wireless Access Multi-level mixer architecture for direct conversion of FSK signals
US5818582A (en) 1996-09-19 1998-10-06 Ciencia, Inc. Apparatus and method for phase fluorometry
US5870670A (en) 1996-09-23 1999-02-09 Motorola, Inc. Integrated image reject mixer
JP4043521B2 (ja) 1996-10-02 2008-02-06 テレフォンアクチーボラゲット エル エム エリクソン(パブル) 信号変換方法および信号変換装置
JPH10117220A (ja) 1996-10-11 1998-05-06 Hitachi Denshi Ltd ディジタル復調器
US5945660A (en) 1996-10-16 1999-08-31 Matsushita Electric Industrial Co., Ltd. Communication system for wireless bar code reader
US5767726A (en) 1996-10-21 1998-06-16 Lucent Technologies Inc. Four terminal RF mixer device
JPH10126307A (ja) 1996-10-21 1998-05-15 Murata Mfg Co Ltd 高周波複合部品
US5909447A (en) 1996-10-29 1999-06-01 Stanford Telecommunications, Inc. Class of low cross correlation palindromic synchronization sequences for time tracking in synchronous multiple access communication systems
US6005887A (en) 1996-11-14 1999-12-21 Ericcsson, Inc. Despreading of direct sequence spread spectrum communications signals
US5905433A (en) 1996-11-25 1999-05-18 Highwaymaster Communications, Inc. Trailer communications system
DE19648915C2 (de) 1996-11-26 2001-02-22 Temic Semiconductor Gmbh Verfahren zur Frequenzumsetzung
JP3557059B2 (ja) 1996-11-27 2004-08-25 富士通株式会社 パルス幅制御装置
JPH10163756A (ja) 1996-11-28 1998-06-19 Fujitsu Ltd 自動周波数制御装置
FR2756686B1 (fr) 1996-11-29 1999-02-19 Thomson Csf Procede et dispositif de radiodiffusion mixte analogique et numerique d'emission radiophonique diffusee par un meme emetteur
FR2756682B1 (fr) 1996-12-03 1999-05-14 Schneider Electric Sa Cellule photoelectrique a amplification stabilisee
JP3884115B2 (ja) 1996-12-10 2007-02-21 三菱電機株式会社 デジタルマッチドフィルタ
US5886547A (en) 1996-12-16 1999-03-23 Motorola, Inc. Circuit and method of controlling mixer linearity
US5834985A (en) 1996-12-20 1998-11-10 Telefonaktiebolaget L M Ericsson (Publ) Digital continuous phase modulation for a DDS-driven phase locked loop
US5970053A (en) 1996-12-24 1999-10-19 Rdl, Inc. Method and apparatus for controlling peak factor of coherent frequency-division-multiplexed systems
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
US5937013A (en) 1997-01-03 1999-08-10 The Hong Kong University Of Science & Technology Subharmonic quadrature sampling receiver and design
US6031217A (en) 1997-01-06 2000-02-29 Texas Instruments Incorporated Apparatus and method for active integrator optical sensors
US5901348A (en) 1997-01-10 1999-05-04 Ail Systems, Inc. Apparatus for enhancing sensitivity in compressive receivers and method for the same
GB2321352B (en) 1997-01-11 2001-04-04 Plessey Semiconductors Ltd Image reject mixer
GB2321149B (en) 1997-01-11 2001-04-04 Plessey Semiconductors Ltd Low voltage double balanced mixer
US6009317A (en) 1997-01-17 1999-12-28 Ericsson Inc. Method and apparatus for compensating for imbalances between quadrature signals
US5926513A (en) 1997-01-27 1999-07-20 Alcatel Alsthom Compagnie Generale D'electricite Receiver with analog and digital channel selectivity
US5881375A (en) 1997-01-31 1999-03-09 Glenayre Electronics, Inc. Paging transmitter having broadband exciter using an intermediate frequency above the transmit frequency
DE19703889C1 (de) 1997-02-03 1998-02-19 Bosch Gmbh Robert Abtast-Phasendetektor
US7356042B2 (en) 1999-06-03 2008-04-08 Tellabs Beford, Inc. Distributed ethernet hub
US6091939A (en) 1997-02-18 2000-07-18 Ericsson Inc. Mobile radio transmitter with normal and talk-around frequency bands
EP0862274A1 (de) 1997-02-26 1998-09-02 TELEFONAKTIEBOLAGET L M ERICSSON (publ) Verfahren und Gerät zur Abtastung eines Analogsignals
DE19708163A1 (de) 1997-02-28 1998-09-10 Bosch Gmbh Robert Schaltung zur Signalaufbereitung von in einem Heterodyninterferometer auftretenden Signalen
DE69818327D1 (de) 1997-03-05 2003-10-30 Nec Corp Direktmischempfänger zur Unterdrückung von Offset-Gleichspannungen
JPH10247952A (ja) 1997-03-05 1998-09-14 Fujitsu Ltd 位相変調器
JP3911788B2 (ja) 1997-03-10 2007-05-09 ソニー株式会社 固体撮像素子およびその駆動方法
US5918167A (en) 1997-03-11 1999-06-29 Northern Telecom Limited Quadrature downconverter local oscillator leakage canceller
EP0900481B1 (de) 1997-03-12 2006-06-14 Philips Electronics N.V. Frequenzumsetzungsschaltung
US6072996A (en) 1997-03-28 2000-06-06 Intel Corporation Dual band radio receiver
US5903196A (en) 1997-04-07 1999-05-11 Motorola, Inc. Self centering frequency multiplier
US5878088A (en) 1997-04-10 1999-03-02 Thomson Consumer Electronics, Inc. Digital variable symbol timing recovery system for QAM
JPH10294676A (ja) 1997-04-17 1998-11-04 Yozan:Kk 待ち受け回路
US5894239A (en) 1997-04-18 1999-04-13 International Business Machines Corporation Single shot with pulse width controlled by reference oscillator
US6038265A (en) 1997-04-21 2000-03-14 Motorola, Inc. Apparatus for amplifying a signal using digital pulse width modulators
GB2325102B (en) 1997-05-09 2001-10-10 Nokia Mobile Phones Ltd Down conversion mixer
US6169733B1 (en) 1997-05-12 2001-01-02 Northern Telecom Limited Multiple mode capable radio receiver device
JP3413060B2 (ja) 1997-05-13 2003-06-03 松下電器産業株式会社 直接変換受信機
US6026125A (en) 1997-05-16 2000-02-15 Multispectral Solutions, Inc. Waveform adaptive ultra-wideband transmitter
US7209523B1 (en) 1997-05-16 2007-04-24 Multispectral Solutions, Inc. Ultra-wideband receiver and transmitter
US5999561A (en) 1997-05-20 1999-12-07 Sanconix, Inc. Direct sequence spread spectrum method, computer-based product, apparatus and system tolerant to frequency reference offset
GB9711823D0 (en) 1997-06-06 1997-08-06 Nokia Mobile Phones Ltd Radio reciever and method of operation
US5825257A (en) 1997-06-17 1998-10-20 Telecommunications Research Laboratories GMSK modulator formed of PLL to which continuous phase modulated signal is applied
US6608647B1 (en) 1997-06-24 2003-08-19 Cognex Corporation Methods and apparatus for charge coupled device image acquisition with independent integration and readout
CN1139273C (zh) 1997-06-27 2004-02-18 皇家菲利浦电子有限公司 具有低功耗和良好频谱规范的无线通信设备
US5907197A (en) 1997-06-30 1999-05-25 Compaq Computer Corporation AC/DC portable power connecting architecture
KR100268648B1 (ko) 1997-07-14 2000-10-16 이계철 저주파필터
DE69830228D1 (de) * 1997-07-25 2005-06-23 Koninkl Philips Electronics Nv Multistandardempfang
US6223061B1 (en) 1997-07-25 2001-04-24 Cleveland Medical Devices Inc. Apparatus for low power radio communications
US5834987A (en) 1997-07-30 1998-11-10 Ercisson Inc. Frequency synthesizer systems and methods for three-point modulation with a DC response
US6240100B1 (en) 1997-07-31 2001-05-29 Motorola, Inc. Cellular TDMA base station receiver with dynamic DC offset correction
EP0895386B1 (de) 1997-07-31 2003-01-29 Micronas Semiconductor Holding AG Trägerregelkreis für einen Empfänger von digital übertragenen Signalen
US5892380A (en) 1997-08-04 1999-04-06 Motorola, Inc. Method for shaping a pulse width and circuit therefor
US5872446A (en) 1997-08-12 1999-02-16 International Business Machines Corporation Low voltage CMOS analog multiplier with extended input dynamic range
WO1999008389A3 (en) * 1997-08-12 1999-04-29 Koninkl Philips Electronics Nv A digital communication device and a mixer
DE19735798C1 (de) 1997-08-18 1998-07-16 Siemens Ag Sendeempfänger
US6128746A (en) 1997-08-26 2000-10-03 International Business Machines Corporation Continuously powered mainstore for large memory subsystems
US6298065B1 (en) 1997-08-29 2001-10-02 Lucent Technologies Inc. Method for multi-mode operation of a subscriber line card in a telecommunications system
US5982315A (en) 1997-09-12 1999-11-09 Qualcomm Incorporated Multi-loop Σ Δ analog to digital converter
DE69814887D1 (de) 1997-09-15 2003-06-26 Siemens Mobile Comm Spa Spiegelfrequenzbeseitigender subharmonischer frequenzumsetzer mit mikrostreifenleitern, insbesondere zur verwendung in mobilfunkgeräten
US5949827A (en) 1997-09-19 1999-09-07 Motorola, Inc. Continuous integration digital demodulator for use in a communication device
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
JPH11112882A (ja) 1997-09-30 1999-04-23 Olympus Optical Co Ltd 撮像装置
US6047026A (en) 1997-09-30 2000-04-04 Ohm Technologies International, Llc Method and apparatus for automatic equalization of very high frequency multilevel and baseband codes using a high speed analog decision feedback equalizer
DE69838230D1 (de) 1997-10-03 2007-09-20 Ericsson Telefon Ab L M Frequenzumsetzer und verfahren
US6385439B1 (en) 1997-10-31 2002-05-07 Telefonaktiebolaget Lm Ericsson (Publ) Linear RF power amplifier with optically activated switches
US5883548A (en) 1997-11-10 1999-03-16 The United States Of America As Represented By The Secretary Of The Navy Demodulation system and method for recovering a signal of interest from an undersampled, modulated carrier
US6054889A (en) 1997-11-11 2000-04-25 Trw Inc. Mixer with improved linear range
US6567483B1 (en) 1997-11-11 2003-05-20 Ericsson, Inc. Matched filter using time-multiplexed precombinations
US6330292B1 (en) 1997-11-11 2001-12-11 Telefonaktiebolaget Lm Ericsson Reduced power matched filter
KR100324259B1 (ko) * 1998-02-12 2002-02-21 다카토리 수나오 매치드필터뱅크
KR100297340B1 (ko) 1997-11-18 2001-10-26 이형도 비대칭플라이백컨버터
US6005506A (en) 1997-12-09 1999-12-21 Qualcomm, Incorporated Receiver with sigma-delta analog-to-digital converter for sampling a received signal
US6049573A (en) 1997-12-11 2000-04-11 Massachusetts Institute Of Technology Efficient polyphase quadrature digital tuner
JP3070733B2 (ja) 1997-12-12 2000-07-31 日本電気株式会社 自動周波数制御方法および装置
JPH11177646A (ja) 1997-12-12 1999-07-02 Matsushita Electric Ind Co Ltd 復調装置
US5901054A (en) 1997-12-18 1999-05-04 Chun-Shan Institute Of Science And Technology Pulse-width-modulation control circuit
US6151354A (en) 1997-12-19 2000-11-21 Rockwell Science Center Multi-mode, multi-band, multi-user radio system architecture
GB2332822B (en) 1997-12-23 2002-08-28 Nortel Networks Corp Communication device having a wideband receiver and operating method therefor
US6343211B1 (en) 1997-12-23 2002-01-29 Nera Asa LO cancelling mixer
US6144846A (en) 1997-12-31 2000-11-07 Motorola, Inc. Frequency translation circuit and method of translating
US6098886A (en) 1998-01-21 2000-08-08 Symbol Technologies, Inc. Glove-mounted system for reading bar code symbols
US5986600A (en) 1998-01-22 1999-11-16 Mcewan; Thomas E. Pulsed RF oscillator and radar motion sensor
US6144236A (en) 1998-02-01 2000-11-07 Bae Systems Aerospace Electronics Inc. Structure and method for super FET mixer having logic-gate generated FET square-wave switching signal
US6686879B2 (en) 1998-02-12 2004-02-03 Genghiscomm, Llc Method and apparatus for transmitting and receiving signals having a carrier interferometry architecture
US5955992A (en) 1998-02-12 1999-09-21 Shattil; Steve J. Frequency-shifted feedback cavity used as a phased array antenna controller and carrier interference multiple access spread-spectrum transmitter
US5952895A (en) 1998-02-23 1999-09-14 Tropian, Inc. Direct digital synthesis of precise, stable angle modulated RF signal
US6076015A (en) 1998-02-27 2000-06-13 Cardiac Pacemakers, Inc. Rate adaptive cardiac rhythm management device using transthoracic impedance
US6195539B1 (en) 1998-03-02 2001-02-27 Mentor Graphics Corporation Method and apparatus for rejecting image signals in a receiver
US6085073A (en) 1998-03-02 2000-07-04 Motorola, Inc. Method and system for reducing the sampling rate of a signal for use in demodulating high modulation index frequency modulated signals
US6125271A (en) 1998-03-06 2000-09-26 Conexant Systems, Inc. Front end filter circuitry for a dual band GSM/DCS cellular phone
JP4083861B2 (ja) 1998-03-06 2008-04-30 株式会社日立国際電気 ディジタル信号伝送装置
US6150890A (en) 1998-03-19 2000-11-21 Conexant Systems, Inc. Dual band transmitter for a cellular phone comprising a PLL
JPH11346172A (ja) 1998-03-30 1999-12-14 Kokusai Electric Co Ltd 受信機
US6157682A (en) 1998-03-30 2000-12-05 Nortel Networks Corporation Wideband receiver with bandwidth extension
US6121819A (en) 1998-04-06 2000-09-19 Motorola, Inc. Switching down conversion mixer for use in multi-stage receiver architectures
US6144331A (en) 1998-04-08 2000-11-07 Texas Instruments Incorporated Analog to digital converter with a differential output resistor-digital-to-analog-converter for improved noise reduction
US6208875B1 (en) 1998-04-08 2001-03-27 Conexant Systems, Inc. RF architecture for cellular dual-band telephones
US6044332A (en) 1998-04-15 2000-03-28 Lockheed Martin Energy Research Corporation Surface acoustic wave harmonic analysis
US6192225B1 (en) 1998-04-22 2001-02-20 Ericsson Inc. Direct conversion receiver
US6078630A (en) 1998-04-23 2000-06-20 Lucent Technologies Inc. Phase-based receiver with multiple sampling frequencies
US6084465A (en) 1998-05-04 2000-07-04 Tritech Microelectronics, Ltd. Method for time constant tuning of gm-C filters
DE19823049C2 (de) 1998-05-22 2000-09-21 Ericsson Telefon Ab L M Leistungsverstärker-Ausgangsschaltung zur Unterdrückung von Oberschwingungen für eine Mobilfunkeinheit mit Doppelbandbetrieb und Verfahren zum Betreiben derselben
US6324379B1 (en) 1998-05-28 2001-11-27 California Amplifier, Inc. Transceiver systems and methods that preserve frequency order when downconverting communication signals and upconverting data signals
US6208636B1 (en) 1998-05-28 2001-03-27 Northpoint Technology, Ltd. Apparatus and method for processing signals selected from multiple data streams
US6057714A (en) 1998-05-29 2000-05-02 Conexant Systems, Inc. Double balance differential active ring mixer with current shared active input balun
FI120124B (fi) 1998-05-29 2009-06-30 Nokia Corp Menetelmä ja piiri signaalin näytteistämiseksi suurella näytteistystaajuudella
US5973568A (en) 1998-06-01 1999-10-26 Motorola Inc. Power amplifier output module for dual-mode digital systems
US6212369B1 (en) 1998-06-05 2001-04-03 Maxim Integrated Products, Inc. Merged variable gain mixers
US6512544B1 (en) * 1998-06-17 2003-01-28 Foveon, Inc. Storage pixel sensor and array with compression
US6314279B1 (en) 1998-06-29 2001-11-06 Philips Electronics North America Corporation Frequency offset image rejection
US6404823B1 (en) 1998-07-01 2002-06-11 Conexant Systems, Inc. Envelope feedforward technique with power control for efficient linear RF power amplification
US6865399B2 (en) 2000-10-26 2005-03-08 Renesas Technology Corp. Mobile telephone apparatus
US6088348A (en) 1998-07-13 2000-07-11 Qualcom Incorporated Configurable single and dual VCOs for dual- and tri-band wireless communication systems
US6167247A (en) 1998-07-15 2000-12-26 Lucent Technologies, Inc. Local oscillator leak cancellation circuit
EP0977351B1 (de) 1998-07-30 2004-02-18 Motorola Semiconducteurs S.A. Verfahren und Gerät zur Funkübertragung
US6198941B1 (en) 1998-08-07 2001-03-06 Lucent Technologies Inc. Method of operating a portable communication device
US6188221B1 (en) 1998-08-07 2001-02-13 Van De Kop Franz Method and apparatus for transmitting electromagnetic waves and analyzing returns to locate underground fluid deposits
US6694128B1 (en) * 1998-08-18 2004-02-17 Parkervision, Inc. Frequency synthesizer using universal frequency translation technology
US6094084A (en) 1998-09-04 2000-07-25 Nortel Networks Corporation Narrowband LC folded cascode structure
US5982329A (en) 1998-09-08 1999-11-09 The United States Of America As Represented By The Secretary Of The Army Single channel transceiver with polarization diversity
US6041073A (en) 1998-09-18 2000-03-21 Golden Bridge Technology, Inc. Multi-clock matched filter for receiving signals with multipath
US6147340A (en) 1998-09-29 2000-11-14 Raytheon Company Focal plane readout unit cell background suppression circuit and method
EP1033820A4 (de) 1998-09-30 2004-08-11 Mitsubishi Electric Corp Harmonischer direktkonversions-empfänger und sende-empfänger mit demselben emfänger
US6963626B1 (en) 1998-10-02 2005-11-08 The Board Of Trustees Of The Leland Stanford Junior University Noise-reducing arrangement and method for signal processing
US6230000B1 (en) 1998-10-15 2001-05-08 Motorola Inc. Product detector and method therefor
US6560301B1 (en) 1998-10-21 2003-05-06 Parkervision, Inc. Integrated frequency translation and selectivity with a variety of filter embodiments
US6873836B1 (en) 1999-03-03 2005-03-29 Parkervision, Inc. Universal platform module and methods and apparatuses relating thereto enabled by universal frequency translation technology
US6061555A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for ensuring reception of a communications signal
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US6049706A (en) 1998-10-21 2000-04-11 Parkervision, Inc. Integrated frequency translation and selectivity
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
WO2001080418A3 (en) 2000-04-13 2002-10-31 Parkervision Inc Frequency converter
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
US7010286B2 (en) 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
US8406724B2 (en) 1998-10-21 2013-03-26 Parkervision, Inc. Applications of universal frequency translation
US7295826B1 (en) 1998-10-21 2007-11-13 Parkervision, Inc. Integrated frequency translation and selectivity with gain control functionality, and applications thereof
US6091940A (en) 1998-10-21 2000-07-18 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
US6061551A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
US7039372B1 (en) 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
US7236754B2 (en) 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
US7321735B1 (en) 1998-10-21 2008-01-22 Parkervision, Inc. Optical down-converter using universal frequency translation technology
US6366622B1 (en) 1998-12-18 2002-04-02 Silicon Wave, Inc. Apparatus and method for wireless communications
US6397051B1 (en) * 1998-12-21 2002-05-28 At&T Corporation Dual image-reject mixer receiver for multiple channel reception and processing
DE19859093A1 (de) * 1998-12-21 2000-07-27 Oce Printing Systems Gmbh Verfahren zum verbesserten elektrografischen Druck von Bilddetails sowie nach diesem Verfahren arbeitendes Druckgerät
GB9828230D0 (en) 1998-12-21 1999-02-17 Nokia Telecommunications Oy Receiver and method of receiving
US6137321A (en) 1999-01-12 2000-10-24 Qualcomm Incorporated Linear sampling switch
JP4123614B2 (ja) 1999-01-22 2008-07-23 ソニー株式会社 信号処理装置およびその方法
US7209725B1 (en) 1999-01-22 2007-04-24 Parkervision, Inc Analog zero if FM decoder and embodiments thereof, such as the family radio service
US6704558B1 (en) * 1999-01-22 2004-03-09 Parkervision, Inc. Image-reject down-converter 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
US6704549B1 (en) 1999-03-03 2004-03-09 Parkvision, Inc. Multi-mode, multi-band communication system
US7110435B1 (en) 1999-03-15 2006-09-19 Parkervision, Inc. Spread spectrum applications of universal frequency translation
US7072636B2 (en) 1999-03-25 2006-07-04 Zenith Electronics Corporation Printed circuit doubly balanced mixer for upconverter
US6114980A (en) 1999-04-13 2000-09-05 Motorola, Inc. Method and apparatus for settling a DC offset
US6963734B2 (en) 1999-12-22 2005-11-08 Parkervision, Inc. Differential frequency down-conversion using techniques of universal frequency translation technology
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
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
US6879817B1 (en) 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
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
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
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
US6445726B1 (en) 1999-04-30 2002-09-03 Texas Instruments Incorporated Direct conversion radio receiver using combined down-converting and energy spreading mixing signal
WO2000072441A1 (en) * 1999-05-24 2000-11-30 Level One Communications, Inc. Automatic gain control and offset correction
US6313685B1 (en) 1999-05-24 2001-11-06 Level One Communications, Inc. Offset cancelled integrator
US6307894B2 (en) 1999-05-25 2001-10-23 Conexant Systems, Inc. Power amplification using a direct-upconverting quadrature mixer topology
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
US7054296B1 (en) 1999-08-04 2006-05-30 Parkervision, Inc. Wireless local area network (WLAN) technology and applications including techniques of universal frequency translation
US7072390B1 (en) 1999-08-04 2006-07-04 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments
JP3677181B2 (ja) 1999-09-06 2005-07-27 株式会社東芝 可変抵抗回路及びd/a変換器
US6647270B1 (en) 1999-09-10 2003-11-11 Richard B. Himmelstein Vehicletalk
US6618579B1 (en) 1999-09-24 2003-09-09 Chase Manhattan Bank Tunable filter with bypass
US6894988B1 (en) 1999-09-29 2005-05-17 Intel Corporation Wireless apparatus having multiple coordinated transceivers for multiple wireless communication protocols
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
US7130579B1 (en) 1999-10-21 2006-10-31 Broadcom Corporation Adaptive radio transceiver with a wide tuning range VCO
US7554508B2 (en) 2000-06-09 2009-06-30 Parker Vision, Inc. Phased array antenna applications on universal frequency translation
US7082171B1 (en) 1999-11-24 2006-07-25 Parkervision, Inc. Phase shifting applications of universal frequency translation
US6697603B1 (en) 1999-12-13 2004-02-24 Andrew Corporation Digital repeater
JP3533351B2 (ja) 1999-12-28 2004-05-31 日本無線株式会社 フィードフォワード増幅器及びその制御回路
US6327313B1 (en) 1999-12-29 2001-12-04 Motorola, Inc. Method and apparatus for DC offset correction
US6634555B1 (en) 2000-01-24 2003-10-21 Parker Vision, Inc. Bar code scanner using universal frequency translation technology for up-conversion and down-conversion
US7292835B2 (en) 2000-01-28 2007-11-06 Parkervision, Inc. Wireless and wired cable modem applications of universal frequency translation technology
US6321073B1 (en) 2000-01-31 2001-11-20 Motorola, Inc. Radiotelephone receiver and method with improved dynamic range and DC offset correction
US6459889B1 (en) 2000-02-29 2002-10-01 Motorola, Inc. DC offset correction loop for radio receiver
US6625470B1 (en) 2000-03-02 2003-09-23 Motorola, Inc. Transmitter
US6741650B1 (en) 2000-03-02 2004-05-25 Adc Telecommunications, Inc. Architecture for intermediate frequency encoder
US6973476B1 (en) 2000-03-10 2005-12-06 Atheros Communications System and method for communicating data via a wireless high speed link
KR20010093750A (ko) 2000-03-29 2001-10-29 이데이 노부유끼 판매 사업 관리 시스템, 판매 사업 관리 장치 및 판매사업 관리 방법
US7193965B1 (en) 2000-05-04 2007-03-20 Intel Corporation Multi-wireless network configurable behavior
US6731146B1 (en) 2000-05-09 2004-05-04 Qualcomm Incorporated Method and apparatus for reducing PLL lock time
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
US6813320B1 (en) 2000-06-28 2004-11-02 Northrop Grumman Corporation Wireless telecommunications multi-carrier receiver architecture
US6992990B2 (en) 2000-07-17 2006-01-31 Sony Corporation Radio communication apparatus
US6437639B1 (en) 2000-07-18 2002-08-20 Lucent Technologies Inc. Programmable RC filter
JP3570359B2 (ja) 2000-08-24 2004-09-29 三菱電機株式会社 高周波モジュール
CN1226830C (zh) 2000-08-25 2005-11-09 因芬尼昂技术股份公司 混波器
US6829311B1 (en) 2000-09-19 2004-12-07 Kaben Research Inc. Complex valued delta sigma phase locked loop demodulator
JP3489621B2 (ja) 2000-09-28 2004-01-26 日本電気株式会社 ダイレクトコンバージョン受信機のベースバンド回路
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
US7454453B2 (en) 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
US6968019B2 (en) 2000-11-27 2005-11-22 Broadcom Corporation IF FSK receiver
WO2002045283A3 (en) 2000-11-29 2003-01-16 Broadcom Corp Integrated direct conversion satellite tuner
US6441694B1 (en) 2000-12-15 2002-08-27 Motorola, Inc. Method and apparatus for generating digitally modulated signals
US6509777B2 (en) * 2001-01-23 2003-01-21 Resonext Communications, Inc. Method and apparatus for reducing DC offset
US6823178B2 (en) 2001-02-14 2004-11-23 Ydi Wireless, Inc. High-speed point-to-point modem-less microwave radio frequency link using direct frequency modulation
JP4127601B2 (ja) 2001-03-09 2008-07-30 株式会社東芝 レーザ加工装置
US20020132642A1 (en) 2001-03-16 2002-09-19 Hines John Ned Common module combiner/active array multicarrier approach without linearization loops
US7522900B2 (en) 2001-03-20 2009-04-21 Broadcom Corporation DC offset correction for use in a radio architecture
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
US7319661B1 (en) 2001-04-23 2008-01-15 Emc Corporation High availability communication for wireless networks
US6741139B2 (en) 2001-05-22 2004-05-25 Ydi Wirelesss, Inc. Optical to microwave converter using direct modulation phase shift keying
US6850742B2 (en) 2001-06-01 2005-02-01 Sige Semiconductor Inc. Direct conversion receiver
US20030149579A1 (en) 2001-08-10 2003-08-07 Begemann Edwin Philip Method of increasing functionality of a product
US6690232B2 (en) 2001-09-27 2004-02-10 Kabushiki Kaisha Toshiba Variable gain amplifier
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
JP3607238B2 (ja) 2001-10-22 2005-01-05 株式会社東芝 Ofdm信号受信システム
US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
US7085335B2 (en) 2001-11-09 2006-08-01 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
US20030139180A1 (en) 2002-01-24 2003-07-24 Mcintosh Chris P. Private cellular network with a public network interface and a wireless local area network extension
FR2836305B1 (fr) 2002-02-15 2004-05-07 St Microelectronics Sa Melangeur differentiel classe ab
US20030158954A1 (en) 2002-02-19 2003-08-21 Williams Terry L. Software-defined radio communication protocol translator
US20030167204A1 (en) 2002-03-04 2003-09-04 Nokia Corporation Method and system for providing content items to users
US6903535B2 (en) * 2002-04-16 2005-06-07 Arques Technology, Inc. Biasing system and method for low voltage DC—DC converters with built-in N-FETs
US6959178B2 (en) 2002-04-22 2005-10-25 Ipr Licensing Inc. Tunable upconverter mixer with image rejection
US7194044B2 (en) 2002-05-22 2007-03-20 Alexander Neil Birkett Up/down conversion circuitry for radio transceiver
WO2003101025A3 (en) 2002-05-28 2004-02-19 Rajesh Bhalla Interworking mechanism between cdma2000 and wlan
US6975848B2 (en) 2002-06-04 2005-12-13 Parkervision, Inc. Method and apparatus for DC offset removal in a radio frequency communication channel
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
US7376091B1 (en) 2002-07-22 2008-05-20 Sprint Spectrum L.P. Wireless bridge for interfacing an 802.11 network with a cellular network
US6892057B2 (en) 2002-08-08 2005-05-10 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for reducing dynamic range of a power amplifier
JP2004201044A (ja) 2002-12-19 2004-07-15 Sony Ericsson Mobilecommunications Japan Inc 携帯通信端末装置及び利得可変回路
US20040125879A1 (en) 2002-12-31 2004-07-01 Jaussi James E. Information transmission unit
US20040184466A1 (en) 2003-03-18 2004-09-23 Ju-Nan Chang Mobile server for internetworking wpan, wlan, and wwan
US6999747B2 (en) * 2003-06-22 2006-02-14 Realtek Semiconductor Corp. Passive harmonic switch mixer
US7206566B1 (en) 2004-07-21 2007-04-17 Hrl Laboratories, Llc Apparatus and method for frequency conversion
US7358801B2 (en) 2004-08-16 2008-04-15 Texas Instruments Incorporated Reducing noise and/or power consumption in a switched capacitor amplifier sampling a reference voltage
EP1667158B1 (de) 2004-10-28 2007-01-31 SGS-THOMSON MICROELECTRONICS S.r.l. Spannungs-Abwärts-Wandler mit reduzierter Welligkeit
US9092523B2 (en) 2005-02-28 2015-07-28 Search Engine Technologies, Llc Methods of and systems for searching by incorporating user-entered information
JP5175730B2 (ja) 2005-08-15 2013-04-03 アイアールエム・リミテッド・ライアビリティ・カンパニーIrm,Llc Tpo模倣剤としての化合物および組成物
KR100768047B1 (ko) 2005-11-30 2007-10-18 엘지.필립스 엘시디 주식회사 유기발광다이오드 표시소자 및 그의 구동 방법
FI20065464A0 (fi) 2006-06-30 2006-06-30 Nokia Corp Monitoiminen passiivinen taajuussekoitin
FI20065861A0 (fi) 2006-06-30 2006-12-28 Nokia Corp Signaalien passiivinen vahvistus
FI20065862A0 (fi) 2006-06-30 2006-12-28 Nokia Corp Monitoiminen passiivinen taajuussekoitin
JP5175734B2 (ja) 2006-09-27 2013-04-03 協和発酵バイオ株式会社 シチジン5’−モノリン酸の製造法
US8649753B2 (en) 2007-09-28 2014-02-11 Broadcom Corporation Method and system for using a microstrip to switch circuits in CMOS applications
US8067925B2 (en) 2008-11-20 2011-11-29 Silergy Technology Hybrid power converter
US7994968B2 (en) 2009-02-26 2011-08-09 Mcewan Technologies, Llc RF magnitude sampler for holographic radar
JP5566057B2 (ja) 2009-07-28 2014-08-06 キヤノン株式会社 画像形成装置
JP4958052B2 (ja) 2010-02-24 2012-06-20 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー 系統電力平準化装置および画像診断システム
US8450673B2 (en) 2010-10-29 2013-05-28 Avago Technologies General Ip (Singapore) Pte. Ltd. Pixel circuit, imaging integrated circuit, and method for image information acquisition
JP5352627B2 (ja) 2011-06-24 2013-11-27 富士通テレコムネットワークス株式会社 光パケット交換装置
US8693972B2 (en) * 2011-11-04 2014-04-08 Ess Technology, Inc. Down-conversion of multiple RF channels
US8718590B2 (en) * 2012-02-23 2014-05-06 Agilent Technologies, Inc. Downconversion of comb spectrum

Also Published As

Publication number Publication date Type
US20030186670A1 (en) 2003-10-02 application
US20090203345A1 (en) 2009-08-13 application
US6266518B1 (en) 2001-07-24 grant
US20050272395A1 (en) 2005-12-08 application
US20150312085A1 (en) 2015-10-29 application
EP1315285B1 (de) 2009-06-03 grant
US8594607B2 (en) 2013-11-26 grant
US7218907B2 (en) 2007-05-15 grant
US9306792B2 (en) 2016-04-05 grant
US9246736B2 (en) 2016-01-26 grant
US6061551A (en) 2000-05-09 grant
US7937059B2 (en) 2011-05-03 grant
US20140241464A1 (en) 2014-08-28 application
US20120220254A1 (en) 2012-08-30 application
US20150312084A1 (en) 2015-10-29 application
US9444673B2 (en) 2016-09-13 grant
US7376410B2 (en) 2008-05-20 grant
US20060141975A1 (en) 2006-06-29 application
US7936022B2 (en) 2011-05-03 grant
KR100556637B1 (ko) 2006-03-03 grant
US20160013755A1 (en) 2016-01-14 application
US8340618B2 (en) 2012-12-25 grant
US20130101064A1 (en) 2013-04-25 application
US20150341196A1 (en) 2015-11-26 application
US9319262B2 (en) 2016-04-19 grant
US20080182544A1 (en) 2008-07-31 application
US6687493B1 (en) 2004-02-03 grant
US20050202797A1 (en) 2005-09-15 application
KR20040111576A (ko) 2004-12-31 application
US20140308912A1 (en) 2014-10-16 application
US20110183640A1 (en) 2011-07-28 application
US20150244551A1 (en) 2015-08-27 application
US9288100B2 (en) 2016-03-15 grant
EP1315285A2 (de) 2003-05-28 application
US20150295536A1 (en) 2015-10-15 application
US9246737B2 (en) 2016-01-26 grant
US7194246B2 (en) 2007-03-20 grant
US20110151821A1 (en) 2011-06-23 application
US8660513B2 (en) 2014-02-25 grant
US20030139168A1 (en) 2003-07-24 application
EP1315285A3 (de) 2004-05-12 application
US7389100B2 (en) 2008-06-17 grant
US8190116B2 (en) 2012-05-29 grant
EP1315285B8 (de) 2009-08-12 grant
US9118528B2 (en) 2015-08-25 grant
US7693502B2 (en) 2010-04-06 grant
US6836650B2 (en) 2004-12-28 grant
US6580902B1 (en) 2003-06-17 grant
US20160020938A1 (en) 2016-01-21 application
US9350591B2 (en) 2016-05-24 grant
US20080272441A1 (en) 2008-11-06 application

Similar Documents

Publication Publication Date Title
DE69802716T2 (de) Verfahren und system zur reinigung von wasser
DE69808118T2 (de) Verfahren und vorrichtung zur gewichtsfüllung
DE69711234T2 (de) Gerät zur erfassung von fahrzeugen
DE69707148T2 (de) System und verfahren zur detektion von fahrzeugüberrollzuständen
DE69711184T2 (de) Verfahren und gerät zur lastanzeige
DE69720713T2 (de) Vorrichtung und verfahren zur handhabung von proben
DE69608432T2 (de) Verfahren und vorrichtung zur suspensionsentwässerung
DE69803202T2 (de) Verfahren und vorrichtung zur sprachdetektion
DE69621859T2 (de) Verfahren und Vorrichtung zur Karteninformationsverarbeitung
DE69803201T2 (de) Verfahren und system zur ausgabe von erkennungsmasken
DE69521169T2 (de) System und Verfahren zur diskreten Radarerkennung
DE69902512T2 (de) System und Verfahren zur Prüfhalterungscharakterisierung
DE69905042T2 (de) Verfahren und vorrichtung zur kühltrocknung
DE69417297T2 (de) Schaltung und Verfahren zur Unterdrückung von Störsignalen
DE69700087T2 (de) Gerät und Verfahren zur Signalanalyse
DE60021831D1 (de) Verfahren und Vorrichtung zur Eichung von Getriebeschaltern
DE69837862D1 (de) Verfahren und Vorrichtung zur Laser-Anheftungs-Mikrodissektion
DE69811321D1 (de) Verfahren und Vorrichtung zur Datenübertragung
DE69710842D1 (de) Verfahren und Einrichtung zur Ruhestrombestimmung
DE59706099D1 (de) Vorrichtung und verfahren zur positionsbestimmung
DE69807475D1 (de) System und verfahren zur änderung des programmzeitschriftenformats
DE69940804D1 (de) Verfahren und vorrichtung zur unterdrückung von abklingartefakten
DE69813582D1 (de) System und verfahren zur ortung von personen
DE60138077D1 (de) System und verfahren zur unterstuetzung von wartungsarbeiten
DE69613979T2 (de) Vorrichtung und verfahren zur verarbeitung ablaufverfolgbarer information

Legal Events

Date Code Title Description
8364 No opposition during term of opposition