SE9302934D0 - Radio receiver - Google Patents

Radio receiver

Info

Publication number
SE9302934D0
SE9302934D0 SE9302934A SE9302934A SE9302934D0 SE 9302934 D0 SE9302934 D0 SE 9302934D0 SE 9302934 A SE9302934 A SE 9302934A SE 9302934 A SE9302934 A SE 9302934A SE 9302934 D0 SE9302934 D0 SE 9302934D0
Authority
SE
Sweden
Prior art keywords
flo
mixer
supplied
frequency
processing unit
Prior art date
Application number
SE9302934A
Other languages
English (en)
Other versions
SE502599C2 (sv
SE9302934L (sv
Inventor
Bjoern Lindqvist
Martin Isberg
Original Assignee
Bjoern Lindqvist
Martin Isberg
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 Bjoern Lindqvist, Martin Isberg filed Critical Bjoern Lindqvist
Priority to SE9302934A priority Critical patent/SE502599C2/sv
Publication of SE9302934D0 publication Critical patent/SE9302934D0/sv
Priority to EP94850153A priority patent/EP0643494B1/en
Priority to DE69432004T priority patent/DE69432004T2/de
Priority to NZ264412A priority patent/NZ264412A/en
Priority to AU72837/94A priority patent/AU676933B2/en
Priority to US08/303,183 priority patent/US5530929A/en
Priority to FI944167A priority patent/FI111490B/sv
Priority to CN94113706A priority patent/CN1049310C/zh
Priority to MYPI94002374A priority patent/MY114659A/en
Priority to JP6216278A priority patent/JPH07245568A/ja
Priority to KR1019940022721A priority patent/KR100214365B1/ko
Priority to TW086220153U priority patent/TW354206U/zh
Publication of SE9302934L publication Critical patent/SE9302934L/sv
Publication of SE502599C2 publication Critical patent/SE502599C2/sv

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
    • H04B1/26—Circuits for superheterodyne receivers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/22—Homodyne or synchrodyne circuits
    • H03D1/2245—Homodyne or synchrodyne circuits using two quadrature channels
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)
  • Noise Elimination (AREA)
  • Transceivers (AREA)
SE9302934A 1993-09-09 1993-09-09 Sätt och anordning vid en homodynmottagare för att minimera läckage av störsignaler SE502599C2 (sv)

Priority Applications (12)

Application Number Priority Date Filing Date Title
SE9302934A SE502599C2 (sv) 1993-09-09 1993-09-09 Sätt och anordning vid en homodynmottagare för att minimera läckage av störsignaler
EP94850153A EP0643494B1 (en) 1993-09-09 1994-09-06 Radio receiver
DE69432004T DE69432004T2 (de) 1993-09-09 1994-09-06 Radioempfänger
NZ264412A NZ264412A (en) 1993-09-09 1994-09-07 Homodyne radio receiver: local oscillator frequency multiplied by rational number before application to quadrature mixer
AU72837/94A AU676933B2 (en) 1993-09-09 1994-09-08 Radio receiver
US08/303,183 US5530929A (en) 1993-09-09 1994-09-08 Homodyne receiver minimizing oscillator leakage
KR1019940022721A KR100214365B1 (ko) 1993-09-09 1994-09-09 호모다인 수신기의 방법 및 장치
FI944167A FI111490B (sv) 1993-09-09 1994-09-09 Radiomottagare
CN94113706A CN1049310C (zh) 1993-09-09 1994-09-09 无线电接收机
MYPI94002374A MY114659A (en) 1993-09-09 1994-09-09 Homodyne receiver minimizing oscillator leakage
JP6216278A JPH07245568A (ja) 1993-09-09 1994-09-09 ラジオ受信機
TW086220153U TW354206U (en) 1993-09-09 1994-09-14 Radio receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9302934A SE502599C2 (sv) 1993-09-09 1993-09-09 Sätt och anordning vid en homodynmottagare för att minimera läckage av störsignaler

Publications (3)

Publication Number Publication Date
SE9302934D0 true SE9302934D0 (sv) 1993-09-09
SE9302934L SE9302934L (sv) 1995-03-10
SE502599C2 SE502599C2 (sv) 1995-11-20

Family

ID=20391045

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9302934A SE502599C2 (sv) 1993-09-09 1993-09-09 Sätt och anordning vid en homodynmottagare för att minimera läckage av störsignaler

Country Status (12)

Country Link
US (1) US5530929A (sv)
EP (1) EP0643494B1 (sv)
JP (1) JPH07245568A (sv)
KR (1) KR100214365B1 (sv)
CN (1) CN1049310C (sv)
AU (1) AU676933B2 (sv)
DE (1) DE69432004T2 (sv)
FI (1) FI111490B (sv)
MY (1) MY114659A (sv)
NZ (1) NZ264412A (sv)
SE (1) SE502599C2 (sv)
TW (1) TW354206U (sv)

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JPH0936768A (ja) * 1995-07-13 1997-02-07 Sony Corp 受信用ｉｃおよびスーパーヘテロダイン受信機
DE59600988D1 (de) * 1995-07-18 1999-01-28 Siemens Ag Verfahren zur Erhöhung der Empfangsempfindlichkeit in Homodyn-Empfängern
US5838735A (en) * 1996-07-08 1998-11-17 Telefonaktiebolaget Lm Ericsson Method and apparatus for compensating for a varying d.c. offset in a sampled signal
US5749051A (en) * 1996-07-18 1998-05-05 Ericsson Inc. Compensation for second order intermodulation in a homodyne receiver
US5918169A (en) * 1996-09-25 1999-06-29 Ericsson, Inc. Homodyne cellular base station
US5918167A (en) * 1997-03-11 1999-06-29 Northern Telecom Limited Quadrature downconverter local oscillator leakage canceller
JP4236059B2 (ja) * 1997-03-12 2009-03-11 エヌエックスピー ビー ヴィ 周波数変換回路
JP3360004B2 (ja) * 1997-03-20 2002-12-24 松下電器産業株式会社 無線受信装置
US6442382B1 (en) * 1997-06-27 2002-08-27 Agere Systems Guardian Corp. Filter switching system and method
DE59811085D1 (de) * 1997-09-11 2004-05-06 Infineon Technologies Ag Oszillatorschaltungsanordnung
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
US6157262A (en) * 1997-12-22 2000-12-05 Honeywell International Inc. Phase locked loop frequency source having reduced load pull
US6192225B1 (en) 1998-04-22 2001-02-20 Ericsson Inc. Direct conversion receiver
JPH11331029A (ja) * 1998-05-19 1999-11-30 Matsushita Electric Ind Co Ltd 双方向型無線通信装置およびそれを用いたｐｃｍｃｉａカード型双方向無線通信装置
US6243569B1 (en) * 1998-08-12 2001-06-05 Analog Devices, Inc. Direct conversion circuit for radio frequency signals
EP1033820A4 (en) * 1998-09-30 2004-08-11 Mitsubishi Electric Corp HARMONIOUS DIRECT CONVERSION RECEIVER AND TRANSMITTER RECEIVER WITH THE SAME RECEIVER
US6246867B1 (en) * 1998-11-17 2001-06-12 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for saving current while performing signal strength measurements in a homodyne receiver
DE19857303A1 (de) * 1998-12-14 2000-06-15 Thomson Brandt Gmbh Verfahren zum Ansteuern einer Empfangsstufe
AU2133400A (en) 1998-12-24 2000-07-31 Telefonaktiebolaget Lm Ericsson (Publ) Communication receiver having reduced dynamic range
WO2000052839A1 (fr) * 1999-03-01 2000-09-08 Mitsubishi Denki Kabushiki Kaisha Unite d'emission et de reception
CA2281236C (en) 1999-09-01 2010-02-09 Tajinder Manku Direct conversion rf schemes using a virtually generated local oscillator
US6516183B1 (en) 1999-09-10 2003-02-04 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for disturbance compensation of a direct conversion receiver in a full duplex transceiver
DE19946494A1 (de) 1999-09-28 2001-05-03 Infineon Technologies Ag Empfänger für verschiedene Frequenzbänder
US6745019B1 (en) * 2000-02-15 2004-06-01 Nera A.S.A. Process and system for reducing leakage of local oscillator
TW448610B (en) * 2000-02-29 2001-08-01 Microelectronics Tech Inc RF signal down converting method and circuit having high separation of signal
FR2814606A1 (fr) * 2000-09-25 2002-03-29 Koninkl Philips Electronics Nv Source de signal a filtre polyphase
US6856199B2 (en) 2000-10-10 2005-02-15 California Institute Of Technology Reconfigurable distributed active transformers
WO2002031967A2 (en) 2000-10-10 2002-04-18 California Institute Of Technology Distributed circular geometry power amplifier architecture
TWM318850U (en) 2001-06-25 2007-09-11 Niigata Seimitsu Co Ltd Receiver and composite parts
EP1271792A1 (en) * 2001-06-25 2003-01-02 Motorola, Inc. Low leakage local oscillator system
CN100508407C (zh) 2001-06-29 2009-07-01 新泻精密株式会社 接收机
US7469136B2 (en) * 2001-11-30 2008-12-23 Motorola, Inc. RF receivers and methods therefor
US10129627B2 (en) 2001-12-21 2018-11-13 One-E-Way, Inc. Wireless digital audio music system
JP3907499B2 (ja) * 2002-03-05 2007-04-18 シャープ株式会社 受信装置およびこれを用いた移動体端末
TWI326967B (en) 2002-03-11 2010-07-01 California Inst Of Techn Differential amplifier
US7027793B2 (en) 2002-11-15 2006-04-11 Qualcomm Incorporated Direct conversion with variable amplitude LO signals
US7480343B2 (en) * 2003-07-16 2009-01-20 Ericsson Technology Licensing Ab Transceiver architecture with reduced VCO-pulling sensitivity
TWI345369B (en) * 2004-01-28 2011-07-11 Mediatek Inc High dynamic range time-varying integrated receiver for elimination of off-chip filters
KR100570712B1 (ko) * 2004-05-17 2006-04-12 전자부품연구원 높은 반송파 억압비를 가지는 2의 ｎ제곱차 저조파 주파수변조기 및 이를 이용한 직접 변환 송신기
JP4546295B2 (ja) * 2005-03-16 2010-09-15 富士通セミコンダクター株式会社 受信装置
TWI292255B (en) * 2005-08-12 2008-01-01 Via Tech Inc Mixer for homodyne rf receiver
KR100653199B1 (ko) * 2005-11-18 2006-12-05 삼성전자주식회사 로컬 신호를 이용하여 수신 신호에서 리키지 성분을제거하는 ｒｆ 수신 장치 및 방법
US7577418B2 (en) * 2006-07-18 2009-08-18 United Microelectronics Corp. Sub-harmonic mixer and down converter with the same
CN101162910B (zh) * 2006-10-10 2011-09-21 北京六合万通微电子技术股份有限公司 本振泄漏自动消除装置和方法
US7710197B2 (en) 2007-07-11 2010-05-04 Axiom Microdevices, Inc. Low offset envelope detector and method of use
US9374100B2 (en) * 2009-07-01 2016-06-21 Qualcomm Incorporated Low power LO distribution using a frequency-multiplying subharmonically injection-locked oscillator
US9509354B2 (en) * 2012-10-31 2016-11-29 Telefonaktiebolaget Lm Ericsson (Publ) Homodyne receiver with improved linearity

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US4063173A (en) * 1976-04-01 1977-12-13 Motorola, Inc. Dual mode receiver
DE3240565C2 (de) * 1982-11-03 1985-12-12 Telefunken electronic GmbH, 6000 Frankfurt Direktmischender Synchronempfänger
JPS61171207A (ja) * 1985-01-25 1986-08-01 Nec Corp 受信機
US4783843A (en) * 1986-05-23 1988-11-08 Peninsula Engineering Group, Inc. Split band filter for cellular mobile radio
US5029237A (en) * 1988-06-30 1991-07-02 At&E Corporation Radio receiver frequency control system
GB9015059D0 (en) * 1990-07-09 1990-08-29 C Com Group Plc Radio receivers
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
US5187722A (en) * 1990-08-13 1993-02-16 At&T Bell Laboratories Frequency synthesis using fractional frequency multiplication
US5241702A (en) * 1990-09-06 1993-08-31 Telefonaktiebolaget L M Ericsson D.c. offset compensation in a radio receiver
US5146186A (en) * 1991-05-13 1992-09-08 Microsource, Inc. Programmable-step, high-resolution frequency synthesizer which substantially eliminates spurious frequencies without adversely affecting phase noise
US5263197A (en) * 1991-09-20 1993-11-16 Matsushita Communication Industrial Corporation Of America Dual port oscillator for two-stage direct conversion receiver

Also Published As

Publication number Publication date
SE502599C2 (sv) 1995-11-20
FI944167A0 (sv) 1994-09-09
FI944167A (sv) 1995-03-10
KR950010396A (ko) 1995-04-28
EP0643494A1 (en) 1995-03-15
AU676933B2 (en) 1997-03-27
CN1049310C (zh) 2000-02-09
AU7283794A (en) 1995-03-23
SE9302934L (sv) 1995-03-10
CN1111857A (zh) 1995-11-15
FI111490B (sv) 2003-07-31
KR100214365B1 (ko) 1999-08-02
DE69432004D1 (de) 2003-02-20
EP0643494B1 (en) 2003-01-15
MY114659A (en) 2002-12-31
DE69432004T2 (de) 2003-12-11
TW354206U (en) 1999-03-01
NZ264412A (en) 1996-11-26
US5530929A (en) 1996-06-25
JPH07245568A (ja) 1995-09-19

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Legal Events

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NUG Patent has lapsed