KR830008564A - 펄스잡음 제거회로 - Google Patents

펄스잡음 제거회로 Download PDF

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Publication number
KR830008564A
KR830008564A KR1019810004887A KR810004887A KR830008564A KR 830008564 A KR830008564 A KR 830008564A KR 1019810004887 A KR1019810004887 A KR 1019810004887A KR 810004887 A KR810004887 A KR 810004887A KR 830008564 A KR830008564 A KR 830008564A
Authority
KR
South Korea
Prior art keywords
circuit
stereo
input terminal
signal
gate
Prior art date
Application number
KR1019810004887A
Other languages
English (en)
Other versions
KR860000413B1 (ko
Inventor
히로야스 기시
준지 사까모또
사다오 콘도오
Original Assignee
이우에 가오루
산요덴기 가부시기가이샤
도오교오산요덴기 가부시기가이샤
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 이우에 가오루, 산요덴기 가부시기가이샤, 도오교오산요덴기 가부시기가이샤 filed Critical 이우에 가오루
Publication of KR830008564A publication Critical patent/KR830008564A/ko
Application granted granted Critical
Publication of KR860000413B1 publication Critical patent/KR860000413B1/ko

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/16—Modifications for eliminating interference voltages or currents
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H04H40/36—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving
    • H04H40/45—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving
    • H04H40/72—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving for noise suppression
    • 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
    • H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
    • H03G3/345—Muting during a short period of time when noise pulses are detected, i.e. blanking
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Manipulation Of Pulses (AREA)
  • Noise Elimination (AREA)

Abstract

내용 없음

Description

펄스잡음 제거회로
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제3도는 본 발명의 일실시예를 나타낸 회로블록도.
제4도는 제3도의 회로블록의 일부를 상세히 설명하는 회로블록도.

Claims (1)

  1. FM스테레오신호를 복조하는 복조회로와 이 복조회로의 출력신호를 지연시키는 지연회로와, 이 지연회로의 출력신호중에 포함되는 스테레오파일로트신호를 사용해서 스테레오 스위칭신호를 발생하는 스위칭신호발생회로와, 상기 지연회로의 출력신호와 상기 스위칭신호발생회로의 출력신호를 사용해서 좌우 스테레오신호를 발생시키는 스테레오 멀티 플렉스회로를 갖춘 FM스테레오수신키에 있어서, 상기 지연회로의 출력신호가 인가되는 제1입력단자, 제2입력단자 및 상기 스테레오 멀티플렉스회로의 입력단에 접속되는 출력단자를 갖는 감산회로와, 상기 제1입력단자와 제2입력단자와의 사이에 삽입되는 콘덴서와, 상기 스테레오파일로트신호와, 동일레벨, 동일주파수의 제어신호를 발생하는 제어 신호발생회로와, 상기 감산회로의 제3입력단자와 상기 제어신호발생 회로의 출력단자와의 사이에 삽입되는 게이트와, 상기 복조회로의 출력신호중에 포함되는 펄스잡음을 검출해서 상기 게이트를 제어하는 게이트제어회로로 이루어지고, 펄스잡음의 발생시에 상기 게이트를 차단하므로서 펄스잡음을 제거함과 동시에, 상기 게이트의 도통, 차단에 관계없이, 스테레오멀티플렉스회로의 입력단에 스테레오파일로트신호가 인가되지 않도록 되어 있는 것을 특징으로 하는 펄스잡음 제거회로.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019810004887A 1981-01-20 1981-12-12 펄스잡음 제거회로 KR860000413B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP56-7465 1981-01-20
JP56007465A JPS57121345A (en) 1981-01-20 1981-01-20 Pulse noise eliminating circuit
JP7465 1981-01-20

Publications (2)

Publication Number Publication Date
KR830008564A true KR830008564A (ko) 1983-12-10
KR860000413B1 KR860000413B1 (ko) 1986-04-17

Family

ID=11666555

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019810004887A KR860000413B1 (ko) 1981-01-20 1981-12-12 펄스잡음 제거회로

Country Status (5)

Country Link
US (1) US4419541A (ko)
EP (1) EP0056464B1 (ko)
JP (1) JPS57121345A (ko)
KR (1) KR860000413B1 (ko)
DE (1) DE3172638D1 (ko)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8203384A (nl) * 1982-08-31 1984-03-16 Philips Nv Fm-stereo-ontvanger.
NL8204687A (nl) * 1982-12-03 1984-07-02 Philips Nv Klokgestuurde filterinrichting.
US4574390A (en) * 1983-03-26 1986-03-04 Victor Company Of Japan, Limited Noise reduction for stereophonic FM signals by high-speed sampling and linear interpolation
US4528678A (en) * 1983-07-05 1985-07-09 Westinghouse Electric Corp. Nonlinear noise reduction apparatus with memory
JPS60165834A (ja) * 1984-02-09 1985-08-29 Clarion Co Ltd 自動周波数制御回路
JPS61184933A (ja) * 1985-02-12 1986-08-18 Clarion Co Ltd パルス性雑音除去用信号補償ゲ−ト回路
JPS61205030A (ja) * 1985-03-08 1986-09-11 Nec Corp 信号処理装置
NL8603249A (nl) * 1986-12-22 1988-07-18 Philips Nv Inrichting voor het decoderen van een stereomultiplexsignaal.
US4872207A (en) * 1987-04-15 1989-10-03 Motorola, Inc. Automatic IF tangent lock control circuit
US4847903A (en) * 1987-05-22 1989-07-11 Recoton Corporation Wireless remote speaker system
US5170489A (en) * 1988-11-30 1992-12-08 Ellis Glazebrook Noise blanker with continuous wave interference compensation
US5077797A (en) * 1989-05-25 1991-12-31 Sanyo Electric Co., Ltd. Fm stereo receiver
US5036543A (en) * 1989-06-30 1991-07-30 Pioneer Electronic Corporation Noise suppression apparatus for FM receiver
JPH04134928A (ja) * 1990-09-26 1992-05-08 Pioneer Electron Corp ノイズ除去回路
JP2721275B2 (ja) * 1991-01-30 1998-03-04 株式会社東芝 パイロット・キャンセル装置
DE4105123A1 (de) * 1991-02-19 1992-08-27 Becker Autoradio Schaltungsanordnung zur unterdrueckung von stoersignalen
US5249233A (en) * 1992-04-06 1993-09-28 Ford Motor Company Multipath noise minimizer for radio receiver
US5408685A (en) * 1992-04-06 1995-04-18 Ford Motor Company Multipath detector using phase comparison of stereo pilot signal
US5357574A (en) * 1992-12-14 1994-10-18 Ford Motor Company Coherent signal generation in digital radio receiver
DE4330892A1 (de) * 1993-09-11 1995-03-16 Blaupunkt Werke Gmbh Schaltungsanordnung zur Befreiung eines Multiplexsignals von Zündstörungen
JPH07231268A (ja) * 1993-12-21 1995-08-29 Toshiba Corp Ｆｍチューナにおけるパルスノイズキャンセラ
US6137831A (en) * 1997-06-20 2000-10-24 Johnson; Neldon P. Method and apparatus for reducing receiver imposed distortion
WO2003010894A1 (fr) * 2001-07-25 2003-02-06 Niigata Seimitsu Co., Ltd. Circuit d'extraction de signal faible
TW200400701A (en) * 2002-04-26 2004-01-01 Niigata Seimitsu Co Ltd Radio receiver
JP2005192132A (ja) * 2003-12-26 2005-07-14 Pioneer Electronic Corp ノイズ除去装置
JP4297182B2 (ja) * 2007-07-20 2009-07-15 株式会社デンソー 受信装置
US8964991B2 (en) * 2008-06-17 2015-02-24 Himax Tehnologies Limted Method for processing an input composite signal and signal processing apparatus thereof
GB2481237A (en) * 2010-06-17 2011-12-21 Nokia Corp Protecting a speaker arrangement against over-modulated broadcasts
CN111480306B (zh) * 2017-12-13 2023-06-30 瑞典爱立信有限公司 估计光链路的传播延迟差的方法和用于所述方法的装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL145420B (nl) * 1969-10-25 1975-03-17 Philips Nv Schakeling voor het onderdrukken van storingen in een fm radio-ontvanger.
JPS5368901A (en) * 1976-12-02 1978-06-19 Clarion Co Ltd Noise limiting system
JPS5816653B2 (ja) * 1976-03-19 1983-04-01 三洋電機株式会社 Ｆｍ受信機のパルス性雑音除去装置
JPS52132712A (en) * 1976-04-30 1977-11-07 Clarion Co Ltd Noise deleting system
NL186732C (nl) * 1978-01-25 1991-02-01 Philips Nv Ruisreduktieschakeling voor stereosignalen.
JPS54122004A (en) * 1978-03-15 1979-09-21 Pioneer Electronic Corp Fm receiver
JPS5531342A (en) * 1978-08-28 1980-03-05 Pioneer Electronic Corp Receiving device
US4314377A (en) * 1979-04-27 1982-02-02 Sanyo Electric Co., Ltd. Noise removing apparatus

Also Published As

Publication number Publication date
JPS6221461B2 (ko) 1987-05-13
EP0056464A2 (en) 1982-07-28
JPS57121345A (en) 1982-07-28
KR860000413B1 (ko) 1986-04-17
EP0056464A3 (en) 1983-05-11
DE3172638D1 (en) 1985-11-14
EP0056464B1 (en) 1985-10-09
US4419541A (en) 1983-12-06

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