SG44852A1 - A direct conversion receiver - Google Patents

A direct conversion receiver

Info

Publication number
SG44852A1
SG44852A1 SG1996008833A SG1996008833A SG44852A1 SG 44852 A1 SG44852 A1 SG 44852A1 SG 1996008833 A SG1996008833 A SG 1996008833A SG 1996008833 A SG1996008833 A SG 1996008833A SG 44852 A1 SG44852 A1 SG 44852A1
Authority
SG
Singapore
Prior art keywords
direct conversion
conversion receiver
receiver
direct
conversion
Prior art date
Application number
SG1996008833A
Other languages
English (en)
Inventor
Rishi Mohindra
Original Assignee
Koninkl Philips Electronics Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of SG44852A1 publication Critical patent/SG44852A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/30—Circuits for homodyne or synchrodyne receivers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
    • H03D3/04—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by counting or integrating cycles of oscillations
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Superheterodyne Receivers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
SG1996008833A 1992-11-26 1993-11-18 A direct conversion receiver SG44852A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92203648 1992-11-26

Publications (1)

Publication Number Publication Date
SG44852A1 true SG44852A1 (en) 1997-12-19

Family

ID=8211074

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1996008833A SG44852A1 (en) 1992-11-26 1993-11-18 A direct conversion receiver

Country Status (6)

Country Link
US (1) US5438692A (de)
JP (1) JP3524947B2 (de)
KR (1) KR100288169B1 (de)
DE (1) DE69332685T2 (de)
SG (1) SG44852A1 (de)
TW (1) TW225067B (de)

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KR100355684B1 (ko) * 1992-11-26 2002-12-11 코닌클리케 필립스 일렉트로닉스 엔.브이. 직접변환수신기
US5617451A (en) * 1993-09-13 1997-04-01 Matsushita Electric Industrial Co., Ltd. Direct-conversion receiver for digital-modulation signal with signal strength detection
US5598441A (en) * 1994-10-13 1997-01-28 Westinghouse Electric Corp. Carrier acquisition technique for mobile radio QPSK demodulator
US5949832A (en) * 1996-03-26 1999-09-07 Sicom, Inc. Digital receiver with tunable analog filter and method therefor
CN1101091C (zh) * 1996-09-06 2003-02-05 皇家菲利浦电子有限公司 零中频接收机
US6011816A (en) * 1996-09-18 2000-01-04 Wireless Access Direct demodulation method and apparatus
US5870670A (en) * 1996-09-23 1999-02-09 Motorola, Inc. Integrated image reject mixer
US6009317A (en) * 1997-01-17 1999-12-28 Ericsson Inc. Method and apparatus for compensating for imbalances between quadrature signals
US5893029A (en) * 1997-02-10 1999-04-06 Motorola, Inc. Baseband phase-locked direct conversion receiver with frequency offset
US6633550B1 (en) 1997-02-20 2003-10-14 Telefonaktiebolaget Lm Ericsson (Publ) Radio transceiver on a chip
US5901184A (en) * 1997-06-18 1999-05-04 Lsi Logic Corporation Extended range voltage controlled oscillator for frequency synthesis in a satellite receiver
JP3048136B2 (ja) * 1997-12-18 2000-06-05 日本電気株式会社 無線選択呼出受信機
US6192225B1 (en) 1998-04-22 2001-02-20 Ericsson Inc. Direct conversion receiver
US6243569B1 (en) 1998-08-12 2001-06-05 Analog Devices, Inc. Direct conversion circuit for radio frequency signals
US6091940A (en) 1998-10-21 2000-07-18 Parkervision, Inc. Method and system for frequency up-conversion
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
US6694128B1 (en) 1998-08-18 2004-02-17 Parkervision, Inc. Frequency synthesizer using universal frequency translation technology
US6061551A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
US7065327B1 (en) 1998-09-10 2006-06-20 Intel Corporation Single-chip CMOS direct-conversion transceiver
US6542722B1 (en) 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
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
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US7039372B1 (en) 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
US6560301B1 (en) 1998-10-21 2003-05-06 Parkervision, Inc. Integrated frequency translation and selectivity with a variety of filter embodiments
US6049706A (en) 1998-10-21 2000-04-11 Parkervision, Inc. Integrated frequency translation and selectivity
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
FI112741B (fi) * 1998-11-26 2003-12-31 Nokia Corp Menetelmä ja järjestely RF-signaalien lähettämiseksi ja vastaanottamiseksi tiedonsiirtojärjestelmien erilaisissa radiorajapinnoissa
US6704549B1 (en) 1999-03-03 2004-03-09 Parkvision, Inc. Multi-mode, multi-band communication system
US6704558B1 (en) 1999-01-22 2004-03-09 Parkervision, Inc. Image-reject down-converter and embodiments thereof, such as the family radio service
US6879817B1 (en) 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
US6304136B1 (en) * 1999-03-03 2001-10-16 Level One Communications, Inc. Reduced noise sensitivity, high performance FM demodulator circuit and method
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
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
US6766148B1 (en) * 2000-03-21 2004-07-20 Koninklijke Phillips Electronics N.V. Switched sideband frequency low-IF transmitter
US7010286B2 (en) 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
US7454453B2 (en) 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
US6694131B1 (en) 2001-02-21 2004-02-17 Mitsubishi Electric Corporation Method and apparatus for adaptive image rejection
CN1578986A (zh) * 2001-08-31 2005-02-09 皇家飞利浦电子股份有限公司 确定数据信号质量的设备和方法
US6845233B2 (en) * 2001-10-09 2005-01-18 Freescale Semiconductor, Inc. RF receivers with reduced spurious response for mobile stations and methods therefor
US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
US7460584B2 (en) 2002-07-18 2008-12-02 Parkervision, Inc. Networking methods and systems
US7379883B2 (en) 2002-07-18 2008-05-27 Parkervision, Inc. Networking methods and systems
JP3711106B2 (ja) * 2002-12-27 2005-10-26 株式会社東芝 データ処理装置及びデータ処理方法
US7003263B2 (en) * 2003-05-12 2006-02-21 Lucent Technologies Inc. Telecommunications receiver and a transmitter
US7164901B2 (en) * 2003-12-24 2007-01-16 Agency For Science, Technology And Research DC offset-free RF front-end circuits and systems for direct conversion receivers
JP4095587B2 (ja) * 2004-06-30 2008-06-04 株式会社東芝 データ処理装置及びデータ処理方法
JP4488855B2 (ja) * 2004-09-27 2010-06-23 パナソニック株式会社 半導体回路装置
GB2424326B (en) * 2005-03-18 2008-01-16 Motorola Inc Receiver for receipt and demodulation of a frequency modulated RF signal and method of operation therein
CA2623805A1 (en) * 2007-03-02 2008-09-02 Robert A. Hubbs Quality of service based preemptive routing
US8140038B2 (en) * 2009-10-14 2012-03-20 Issc Technologies Corp. Adaptive receivers
US9024815B2 (en) 2011-05-27 2015-05-05 Brooks Engineering International, Llc Direct-to-digital software-defined radar
US8737549B2 (en) 2012-04-30 2014-05-27 Lsi Corporation Receiver having limiter-enhanced data eye openings
US9893916B2 (en) * 2016-07-01 2018-02-13 Texas Instruments Incorporated Methods and apparatus for performing a high speed phase demodulation scheme using a low bandwidth phase-lock loop

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2180419A (en) * 1985-09-16 1987-03-25 Philips Electronic Associated Direct conversion receiver
US5109544A (en) * 1990-11-05 1992-04-28 Motorola, Inc. Paging receiver with automatic frequency control

Also Published As

Publication number Publication date
DE69332685T2 (de) 2003-11-13
JPH06224951A (ja) 1994-08-12
JP3524947B2 (ja) 2004-05-10
KR100288169B1 (ko) 2001-05-02
DE69332685D1 (de) 2003-03-20
TW225067B (de) 1994-06-11
KR940012878A (ko) 1994-06-24
US5438692A (en) 1995-08-01

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