DE3855278T2 - Rundfunkempfänger mit breitbandigem automatischem Verstärkungsregler - Google Patents

Rundfunkempfänger mit breitbandigem automatischem Verstärkungsregler

Info

Publication number
DE3855278T2
DE3855278T2 DE3855278T DE3855278T DE3855278T2 DE 3855278 T2 DE3855278 T2 DE 3855278T2 DE 3855278 T DE3855278 T DE 3855278T DE 3855278 T DE3855278 T DE 3855278T DE 3855278 T2 DE3855278 T2 DE 3855278T2
Authority
DE
Germany
Prior art keywords
circuit
signal
tuning
output
detector
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
DE3855278T
Other languages
German (de)
English (en)
Other versions
DE3855278D1 (de
Inventor
Sakae Sugayama
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=17735173&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3855278(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Application granted granted Critical
Publication of DE3855278D1 publication Critical patent/DE3855278D1/de
Publication of DE3855278T2 publication Critical patent/DE3855278T2/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
    • H04B1/16—Circuits
    • 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
    • H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
    • 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
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/06—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers
    • H03J7/065—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers the counter or frequency divider being used in a phase locked loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Noise Elimination (AREA)
  • Superheterodyne Receivers (AREA)
DE3855278T 1987-11-16 1988-11-15 Rundfunkempfänger mit breitbandigem automatischem Verstärkungsregler Expired - Lifetime DE3855278T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62288821A JPH01129620A (ja) 1987-11-16 1987-11-16 ラジオ受信機

Publications (2)

Publication Number Publication Date
DE3855278D1 DE3855278D1 (de) 1996-06-13
DE3855278T2 true DE3855278T2 (de) 1997-01-23

Family

ID=17735173

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3855278T Expired - Lifetime DE3855278T2 (de) 1987-11-16 1988-11-15 Rundfunkempfänger mit breitbandigem automatischem Verstärkungsregler

Country Status (6)

Country Link
US (1) US4955077A (en:Method)
EP (1) EP0316879B1 (en:Method)
JP (1) JPH01129620A (en:Method)
KR (1) KR960008414B1 (en:Method)
CN (1) CN1011106B (en:Method)
DE (1) DE3855278T2 (en:Method)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2546347B2 (ja) * 1988-08-15 1996-10-23 日本電気株式会社 無線送受信装置
US5239701A (en) * 1989-11-15 1993-08-24 Sanyo Electric Co., Ltd. Radio receiver with improved channel selection and reception
US5321851A (en) * 1989-11-15 1994-06-14 Sanyo Electric Co., Ltd. Radio receiver comprising automatic gain controlling function
DE3942959C2 (de) * 1989-12-23 1995-06-29 Telefunken Microelectron Funkempfänger
ATE155626T1 (de) * 1990-01-23 1997-08-15 Governors Of Paisley College O Amplitudenregelkreisschaltungen
JP2577490B2 (ja) * 1990-07-03 1997-01-29 株式会社東芝 Ｆｍフロントエンド部のａｇｃ回路
JPH056943U (ja) * 1991-02-28 1993-01-29 株式会社東芝 ゲインコントロール回路
US5379445A (en) * 1991-11-01 1995-01-03 Comsat Automatic gain control for reducing effects of jamming
JPH05335855A (ja) * 1992-05-29 1993-12-17 Sanyo Electric Co Ltd ラジオ受信機
DE4241362C2 (de) * 1992-12-09 1997-06-05 Blaupunkt Werke Gmbh Rundfunkempfänger
US5465406A (en) * 1994-09-06 1995-11-07 Ford Motor Company Automatic gain control overshoot limiter for AM receiver
US5613230A (en) * 1995-06-09 1997-03-18 Ford Motor Company AM receiver search tuning with adaptive control
JPH0946614A (ja) * 1995-07-27 1997-02-14 Nec Corp 自動利得制御回路およびその回路を用いた受信用フロン トエンド装置
JP2996170B2 (ja) * 1996-03-21 1999-12-27 日本電気株式会社 利得制御回路
JP3503722B2 (ja) * 1996-05-17 2004-03-08 パイオニア株式会社 多値ディジタル伝送システム
JPH10145250A (ja) * 1996-11-12 1998-05-29 Nec Corp 無線受信装置
JP3203202B2 (ja) * 1997-03-31 2001-08-27 三洋電機株式会社 ラジオ受信機
JP3304886B2 (ja) * 1998-06-29 2002-07-22 日本電気株式会社 自動利得制御方法、その装置および通信用受信装置
JP2001189692A (ja) * 1999-12-28 2001-07-10 Matsushita Electric Ind Co Ltd 受信装置及び利得制御方法
JP3906792B2 (ja) 2002-01-22 2007-04-18 松下電器産業株式会社 高周波信号受信装置とその製造方法
JP2005094502A (ja) * 2003-09-18 2005-04-07 Matsushita Electric Ind Co Ltd 受信回路
JP2006166009A (ja) * 2004-12-07 2006-06-22 Mitsubishi Electric Corp 受信装置
US7668517B2 (en) * 2006-06-14 2010-02-23 Mediatek Inc. Radio frequency signal receiver with adequate automatic gain control
JP2008294629A (ja) * 2007-05-23 2008-12-04 Funai Electric Co Ltd テレビ受信機

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5139576B2 (en:Method) * 1972-04-13 1976-10-28
JPS5643809A (en) * 1979-09-19 1981-04-22 Hitachi Ltd Automatic gain controller
JPS6150354U (en:Method) * 1984-09-03 1986-04-04

Also Published As

Publication number Publication date
KR890009106A (ko) 1989-07-15
JPH01129620A (ja) 1989-05-22
EP0316879B1 (en) 1996-05-08
CN1011106B (zh) 1991-01-02
EP0316879A3 (en) 1991-01-02
DE3855278D1 (de) 1996-06-13
KR960008414B1 (en) 1996-06-26
CN1035924A (zh) 1989-09-27
EP0316879A2 (en) 1989-05-24
JPH0461531B2 (en:Method) 1992-10-01
US4955077A (en) 1990-09-04

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8365 Fully valid after opposition proceedings