JPH0429244U - - Google Patents

Info

Publication number
JPH0429244U
JPH0429244U JP7110290U JP7110290U JPH0429244U JP H0429244 U JPH0429244 U JP H0429244U JP 7110290 U JP7110290 U JP 7110290U JP 7110290 U JP7110290 U JP 7110290U JP H0429244 U JPH0429244 U JP H0429244U
Authority
JP
Japan
Prior art keywords
auto
output
function
tuner
reduces
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.)
Pending
Application number
JP7110290U
Other languages
English (en)
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 filed Critical
Priority to JP7110290U priority Critical patent/JPH0429244U/ja
Priority to GB9107414A priority patent/GB2246676B/en
Priority to DE19914111709 priority patent/DE4111709C2/de
Publication of JPH0429244U publication Critical patent/JPH0429244U/ja
Pending 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
    • H04B1/1646—Circuits adapted for the reception of stereophonic signals
    • H04B1/1661—Reduction of noise by manipulation of the baseband composite stereophonic signal or the decoded left and right channels
    • H04B1/1669—Reduction of noise by manipulation of the baseband composite stereophonic signal or the decoded left and right channels of the demodulated composite stereo signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Circuits Of Receivers In General (AREA)
  • Noise Elimination (AREA)

Description

【図面の簡単な説明】
第１図は本考案の一実施例を示すブロツク図、
第２図はインプツトレベルに対するＳメータ出力
を示す特性図、第３図は従来の回路を示すブロツ
ク図である。 １……アンテナ、２……フロントエンド、３…
…ＩＦ増幅器、４……検波器、５……マルチプレ
ツクス、６……Ｓメータ検出器、７……セペレー
シヨン制御回路、８……ハイカツト制御回路、９
……ソフトミユート回路、１１……ＩＦレベル検
波器、１２……オフセツト電圧加算器、１２ａ…
…可変抵抗器。

Claims (1)

  1. 【実用新案登録請求の範囲】 強電界ではＨｉ−Ｆｉ受信を行い、アンテナ入
    力レベルが低下するにつれて、連続的にステレオ
    からモノラルへ切り換えるオートセパレーシヨン
    機能、高域ノイズを低減するオートハイカツト機
    能、再生出力を低減するソフトミユート機能を有
    するＦＭチユーナにおいて、 ＩＦ出力を検波するレベル検波を行うレベル検
    波器と、該レベル検波器よりの出力に対して調整
    可能のオフセツト電圧を加算して直流オフセツト
    出力を得るオフセツト電圧加算器とを具備し、 前記３つのオートセパレーシヨン機能、オート
    ハイカツト機能およびソフトミユート機能を制御
    するようにしたことを特徴とするＦＭチユーナ。
JP7110290U 1990-07-05 1990-07-05 Pending JPH0429244U (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP7110290U JPH0429244U (ja) 1990-07-05 1990-07-05
GB9107414A GB2246676B (en) 1990-07-05 1991-04-09 FM Tuner
DE19914111709 DE4111709C2 (de) 1990-07-05 1991-04-10 FM-Tuner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7110290U JPH0429244U (ja) 1990-07-05 1990-07-05

Publications (1)

Publication Number Publication Date
JPH0429244U true JPH0429244U (ja) 1992-03-09

Family

ID=13450849

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7110290U Pending JPH0429244U (ja) 1990-07-05 1990-07-05

Country Status (3)

Country Link
JP (1) JPH0429244U (ja)
DE (1) DE4111709C2 (ja)
GB (1) GB2246676B (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19542738A1 (de) * 1995-11-16 1997-05-22 Bayerische Motoren Werke Ag Schaltanordnung für mobile Rundfunkempfänger
DE19630392C2 (de) * 1996-07-26 1998-10-01 Sgs Thomson Microelectronics Stereodecoder mit gleitendem Übergang zwischen Stereobetrieb und Monobetrieb
EP1931058B1 (en) * 2005-09-28 2012-08-22 Pioneer Corporation Diversity reception device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55159648U (ja) * 1979-05-07 1980-11-17

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS539403A (en) * 1976-07-14 1978-01-27 Pioneer Electronic Corp Fm stereophonic receiver
JPS5931077A (ja) * 1982-08-13 1984-02-18 Mitsubishi Electric Corp 半導体発光装置
US4691357A (en) * 1985-06-14 1987-09-01 Pioneer Electronic Corporation Stereophonic receiving circuit providing improved switching characteristics between stereophonic and monaural modes
US4727580A (en) * 1986-04-23 1988-02-23 Alpine Electronics, Inc. Radio receiver
JPH01162020A (ja) * 1987-12-18 1989-06-26 Nec Ic Microcomput Syst Ltd Ｆｍラジオ受信機

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55159648U (ja) * 1979-05-07 1980-11-17

Also Published As

Publication number Publication date
DE4111709A1 (de) 1992-01-16
GB2246676B (en) 1994-06-15
DE4111709C2 (de) 1994-06-09
GB2246676A (en) 1992-02-05
GB9107414D0 (en) 1991-05-22

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