JP2577490B2 - Ｆｍフロントエンド部のａｇｃ回路 - Google Patents

Ｆｍフロントエンド部のａｇｃ回路

Info

Publication number
JP2577490B2
JP2577490B2 JP2174509A JP17450990A JP2577490B2 JP 2577490 B2 JP2577490 B2 JP 2577490B2 JP 2174509 A JP2174509 A JP 2174509A JP 17450990 A JP17450990 A JP 17450990A JP 2577490 B2 JP2577490 B2 JP 2577490B2
Authority
JP
Japan
Prior art keywords
signal
circuit
agc
phi
input
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
JP2174509A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0465907A (ja
Inventor
望 川田
豊 松本
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
Tokyo Shibaura Electric Co Ltd
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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Priority to JP2174509A priority Critical patent/JP2577490B2/ja
Priority to KR1019910011160A priority patent/KR950004747B1/ko
Priority to US07/725,522 priority patent/US5369792A/en
Priority to EP91111029A priority patent/EP0464792B1/en
Priority to DE69127934T priority patent/DE69127934T2/de
Publication of JPH0465907A publication Critical patent/JPH0465907A/ja
Application granted granted Critical
Publication of JP2577490B2 publication Critical patent/JP2577490B2/ja
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)
JP2174509A 1990-07-03 1990-07-03 Ｆｍフロントエンド部のａｇｃ回路 Expired - Lifetime JP2577490B2 (ja)

Priority Applications (5)

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
KR1019910011160A KR950004747B1 (ko) 1990-07-03 1991-07-02 Fm프론트엔드부의 agc회로
US07/725,522 US5369792A (en) 1990-07-03 1991-07-03 AGC circuit of FM front-end portion for controlling bandwidth detection sensitivity
EP91111029A EP0464792B1 (en) 1990-07-03 1991-07-03 AGC circuit of FM front-end portion
DE69127934T DE69127934T2 (de) 1990-07-03 1991-07-03 AGC-Schaltung einer FM-Eingangsstufe

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
JPH0465907A JPH0465907A (ja) 1992-03-02
JP2577490B2 true JP2577490B2 (ja) 1997-01-29

Family

ID=15979752

Family Applications (1)

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

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
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

Also Published As

Publication number Publication date
DE69127934T2 (de) 1998-03-05
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
US5369792A (en) 1994-11-29

Similar Documents

Publication Publication Date Title
JP2577490B2 (ja) Ｆｍフロントエンド部のａｇｃ回路
JPH08154061A (ja) 放送信号受信装置
JPS632364B2 (enExample)
EP1383318B1 (en) Television tuner in which influence from analog signals is suppressed when receiving digital signals
JPH10190509A (ja) マイクロ波放送受信回路
US5303410A (en) Signal strength meter circuit for radio receiver
JP2699698B2 (ja) 受信装置
US5095283A (en) Amplifier circuit having feedback circuit
JP3174230B2 (ja) ラジオ受信機
JPH0337771B2 (enExample)
KR100340434B1 (ko) 위성방송용 튜너
JPS6041331A (ja) ラジオ受信機
JPH0416495Y2 (enExample)
JPS6322739B2 (enExample)
KR940003616Y1 (ko) 유선 tv 튜너에서 1차 발진단과 2차 발진단과의 발진신호 상호간섭 억제회로
JP3289693B2 (ja) Ｆｍチューナフロントエンドの自動利得制御回路
JP2522432Y2 (ja) Ｆｍ受信装置
KR0133242Y1 (ko) 강전계영역을 보완한 위성방송 튜너
JP2519320Y2 (ja) チューナのａｇｃ回路
JPH03214931A (ja) 受信装置
JPH04192891A (ja) 受信回路
JPS628975B2 (enExample)
JPH11340849A (ja) Ａｍ受信装置
JPS58201415A (ja) 受信機のａｇｃ回路
JP2001168747A (ja) Ａｇｃ回路

Legal Events

Date Code Title Description
FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20071107

Year of fee payment: 11

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20081107

Year of fee payment: 12

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20091107

Year of fee payment: 13

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20101107

Year of fee payment: 14

EXPY Cancellation because of completion of term
FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20101107

Year of fee payment: 14