KR950004747B1 - Fm프론트엔드부의 agc회로 - Google Patents

Fm프론트엔드부의 agc회로 Download PDF

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Publication number
KR950004747B1
KR950004747B1 KR1019910011160A KR910011160A KR950004747B1 KR 950004747 B1 KR950004747 B1 KR 950004747B1 KR 1019910011160 A KR1019910011160 A KR 1019910011160A KR 910011160 A KR910011160 A KR 910011160A KR 950004747 B1 KR950004747 B1 KR 950004747B1
Authority
KR
South Korea
Prior art keywords
signal
circuit
amplifier
input
attenuation
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
KR1019910011160A
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English (en)
Korean (ko)
Other versions
KR920003678A (ko
Inventor
유타카 마츠모토
노조무 가와다
Original Assignee
가부시키가이샤 도시바
아오이 죠이치
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 가부시키가이샤 도시바, 아오이 죠이치 filed Critical 가부시키가이샤 도시바
Publication of KR920003678A publication Critical patent/KR920003678A/ko
Application granted granted Critical
Publication of KR950004747B1 publication Critical patent/KR950004747B1/ko
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Noise Elimination (AREA)
KR1019910011160A 1990-07-03 1991-07-02 Fm프론트엔드부의 agc회로 Expired - Lifetime KR950004747B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP02-174509 1990-07-03
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
KR920003678A KR920003678A (ko) 1992-02-29
KR950004747B1 true KR950004747B1 (ko) 1995-05-06

Family

ID=15979752

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910011160A Expired - Lifetime KR950004747B1 (ko) 1990-07-03 1991-07-02 Fm프론트엔드부의 agc회로

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)

Families Citing this family (31)

* 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
JP3604274B2 (ja) * 1998-03-10 2004-12-22 パイオニア株式会社 Ｒｆ−ａｇｃ回路を備えた受信機
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
DE10025837A1 (de) * 2000-05-25 2001-12-13 Rohde & Schwarz Breitbandempfänger
US6532358B1 (en) * 2000-08-03 2003-03-11 Tektronix, Inc. Overload distortion protection for a wideband receiver
JP2003218711A (ja) 2002-01-22 2003-07-31 Alps Electric Co Ltd Ｆｍ受信機のａｇｃ回路
US6961552B2 (en) * 2002-03-25 2005-11-01 Broadcom Corporation LNA gain adjustment for intermodulation interference reduction
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
DE69126373T2 (de) * 1990-06-29 1998-01-15 Sanyo Electric Co Automatische Verstärkungsregelung für einen Radioempfänger
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

Also Published As

Publication number Publication date
EP0464792A3 (enExample) 1994-01-19
DE69127934D1 (de) 1997-11-20
JPH0465907A (ja) 1992-03-02
EP0464792A2 (en) 1992-01-08
JP2577490B2 (ja) 1997-01-29
KR920003678A (ko) 1992-02-29
DE69127934T2 (de) 1998-03-05
US5369792A (en) 1994-11-29
EP0464792B1 (en) 1997-10-15

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