DE69127934T2 - AGC-Schaltung einer FM-Eingangsstufe - Google Patents

AGC-Schaltung einer FM-Eingangsstufe

Info

Publication number
DE69127934T2
DE69127934T2 DE69127934T DE69127934T DE69127934T2 DE 69127934 T2 DE69127934 T2 DE 69127934T2 DE 69127934 T DE69127934 T DE 69127934T DE 69127934 T DE69127934 T DE 69127934T DE 69127934 T2 DE69127934 T2 DE 69127934T2
Authority
DE
Germany
Prior art keywords
signal
agc
level
agc circuit
outputting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69127934T
Other languages
German (de)
English (en)
Other versions
DE69127934D1 (de
Inventor
Nozomu Kawada
Yutaka Matsumoto
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Application granted granted Critical
Publication of DE69127934D1 publication Critical patent/DE69127934D1/de
Publication of DE69127934T2 publication Critical patent/DE69127934T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/14—Automatic detuning arrangements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Superheterodyne Receivers (AREA)
  • Noise Elimination (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
DE69127934T 1990-07-03 1991-07-03 AGC-Schaltung einer FM-Eingangsstufe Expired - Lifetime DE69127934T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2174509A JP2577490B2 (ja) 1990-07-03 1990-07-03 Ｆｍフロントエンド部のａｇｃ回路

Publications (2)

Publication Number Publication Date
DE69127934D1 DE69127934D1 (de) 1997-11-20
DE69127934T2 true DE69127934T2 (de) 1998-03-05

Family

ID=15979752

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69127934T Expired - Lifetime DE69127934T2 (de) 1990-07-03 1991-07-03 AGC-Schaltung einer FM-Eingangsstufe

Country Status (5)

Country Link
US (1) US5369792A (enExample)
EP (1) EP0464792B1 (enExample)
JP (1) JP2577490B2 (enExample)
KR (1) KR950004747B1 (enExample)
DE (1) DE69127934T2 (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10025837A1 (de) * 2000-05-25 2001-12-13 Rohde & Schwarz Breitbandempfänger
DE19910371B4 (de) * 1998-03-10 2008-12-24 Pioneer Electronic Corp. Empfänger mit automatischer Hochfrequenzsignal-Verstärkungssteuerschaltung

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5270824A (en) * 1991-12-30 1993-12-14 Zenith Electronics Corporation AGC circuit for double conversion digital television tuner
DE4303110A1 (de) * 1993-02-04 1994-08-18 Kolbe & Co Hans Rundfunk-Empfangssystem
US5481226A (en) * 1994-10-25 1996-01-02 Motorola, Inc. Low-voltage intermediate frequency amplifier providing automatic gain control of a source amplifier
US5722063A (en) * 1994-12-16 1998-02-24 Qualcomm Incorporated Method and apparatus for increasing receiver immunity to interference
KR0168790B1 (ko) * 1995-07-06 1999-02-01 김광호 수신신호세기의 동적범위를 확장시키는 셀룰라 통신시스템의 수신기
US5697081A (en) * 1995-09-12 1997-12-09 Oki Telecom, Inc. Intermodulation distortion reduction circuit utilizing variable attenuation
EP0798850B1 (en) * 1996-03-27 2004-10-13 Philips Intellectual Property & Standards GmbH Improvements in or relating to radio receivers
DE69731137T2 (de) * 1996-03-27 2006-03-09 Philips Intellectual Property & Standards Gmbh Verbesserung in oder bezüglich Radioempfänger
US5745844A (en) * 1996-10-04 1998-04-28 Motorola, Inc. Receiver control in a communication device by antenna de-tuning in strong signal conditions, and method therefor
JPH10276109A (ja) * 1997-03-27 1998-10-13 Alps Electric Co Ltd テレビジョン信号受信用チュ−ナ
JPH10276125A (ja) * 1997-03-28 1998-10-13 Matsushita Electric Ind Co Ltd 移動無線受信装置
JPH10276112A (ja) * 1997-03-28 1998-10-13 Sanyo Electric Co Ltd ラジオ受信機
US6236863B1 (en) * 1997-03-31 2001-05-22 Oki Telecom, Inc. Comprehensive transmitter power control system for radio telephones
JPH11136142A (ja) * 1997-11-03 1999-05-21 Nec Shizuoka Ltd 利得制御回路及び利得制御方法
JPH11154882A (ja) * 1997-11-21 1999-06-08 Hitachi Denshi Ltd 無線機
US6212244B1 (en) * 1998-01-09 2001-04-03 Golden Bridge Technology, Inc. Fast response automatic gain control
GB2342238A (en) * 1998-09-30 2000-04-05 Sony Uk Ltd Digital terrestrial TV tuner
JP3121319B2 (ja) * 1998-12-17 2000-12-25 日本電気株式会社 Ｄｓ−ｃｄｍａマルチユーザ干渉キャンセラとそのシステム
US6229998B1 (en) 1999-04-12 2001-05-08 Qualcomm Inc. Method and system for detecting in-band jammers in a spread spectrum wireless base station
DE10005605B4 (de) * 2000-02-09 2004-04-08 Infineon Technologies Ag Analoge Vorstufe
US6532358B1 (en) * 2000-08-03 2003-03-11 Tektronix, Inc. Overload distortion protection for a wideband receiver
US6961552B2 (en) * 2002-03-25 2005-11-01 Broadcom Corporation LNA gain adjustment for intermodulation interference reduction
JP2003218711A (ja) 2002-01-22 2003-07-31 Alps Electric Co Ltd Ｆｍ受信機のａｇｃ回路
JP3770231B2 (ja) 2002-04-16 2006-04-26 松下電器産業株式会社 高周波信号受信装置
US20040162043A1 (en) * 2003-02-14 2004-08-19 Motorola, Inc. System and method for compensating receiver gain using a mixed signal technique by implementing both automatic gain control (AGC) and bit-normalization
JP4719139B2 (ja) * 2006-12-05 2011-07-06 トヨタ自動車株式会社 中空バルブ
JP4844847B2 (ja) * 2008-03-17 2011-12-28 トヨタ自動車株式会社 中空バルブ
CN108112068B (zh) * 2017-12-04 2020-12-11 中国电子科技集团公司第三十研究所 一种适用于ofdm系统的快速自动增益控制方法
US10931321B1 (en) 2020-01-08 2021-02-23 Eagle Technology, Llc System and method for optimizing intermodulation performance of receivers

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5345250B2 (enExample) * 1974-10-02 1978-12-05
US4013964A (en) * 1975-10-22 1977-03-22 Motorola, Inc. Automatic gain control means for a single sideband radio receiver
JPS583331A (ja) * 1981-06-29 1983-01-10 Hitachi Ltd Ａｇｃ回路
JPS5928711A (ja) * 1982-08-09 1984-02-15 Matsushita Electric Ind Co Ltd 受信装置
JPS59212038A (ja) * 1983-05-18 1984-11-30 Pioneer Electronic Corp 受信装置
US4538300A (en) * 1983-09-07 1985-08-27 Sprague Electric Company Linear signal strength detector in AM radio
JPS6137620U (ja) * 1984-08-10 1986-03-08 アルパイン株式会社 ラジオ受信機
JPH01129620A (ja) * 1987-11-16 1989-05-22 Sanyo Electric Co Ltd ラジオ受信機
JPH01133409A (ja) * 1987-11-19 1989-05-25 Sanyo Electric Co Ltd オートサーチチューナ
DE69032634T2 (de) * 1989-06-27 1999-01-28 Nec Corp., Tokio/Tokyo Steuerschaltung für die Ausgangswellenform
JPH0338906A (ja) * 1989-07-05 1991-02-20 Pioneer Electron Corp 受信装置
JPH0795699B2 (ja) * 1989-10-26 1995-10-11 松下電器産業株式会社 受信機
EP0464669B1 (en) * 1990-06-29 1997-06-04 Sanyo Electric Co., Ltd. AGC circuit for radio receiver
JP2589202B2 (ja) * 1990-06-29 1997-03-12 三洋電機株式会社 ラジオ用感度切換え回路

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19910371B4 (de) * 1998-03-10 2008-12-24 Pioneer Electronic Corp. Empfänger mit automatischer Hochfrequenzsignal-Verstärkungssteuerschaltung
DE10025837A1 (de) * 2000-05-25 2001-12-13 Rohde & Schwarz Breitbandempfänger

Also Published As

Publication number Publication date
EP0464792B1 (en) 1997-10-15
KR920003678A (ko) 1992-02-29
DE69127934D1 (de) 1997-11-20
KR950004747B1 (ko) 1995-05-06
EP0464792A2 (en) 1992-01-08
EP0464792A3 (enExample) 1994-01-19
JPH0465907A (ja) 1992-03-02
JP2577490B2 (ja) 1997-01-29
US5369792A (en) 1994-11-29

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)