KR830006983A - 복조회로 - Google Patents

복조회로 Download PDF

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Publication number
KR830006983A
KR830006983A KR1019810002415A KR810002415A KR830006983A KR 830006983 A KR830006983 A KR 830006983A KR 1019810002415 A KR1019810002415 A KR 1019810002415A KR 810002415 A KR810002415 A KR 810002415A KR 830006983 A KR830006983 A KR 830006983A
Authority
KR
South Korea
Prior art keywords
signal
output
circuit
limiter output
limiter
Prior art date
Application number
KR1019810002415A
Other languages
English (en)
Other versions
KR860000186B1 (ko
Inventor
코오조오 요시히사
이사무 오구이
Original Assignee
사바 쇼오이찌
도오쿄오 시바우라덴기 가부시기 가이샤
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 사바 쇼오이찌, 도오쿄오 시바우라덴기 가부시기 가이샤 filed Critical 사바 쇼오이찌
Publication of KR830006983A publication Critical patent/KR830006983A/ko
Application granted granted Critical
Publication of KR860000186B1 publication Critical patent/KR860000186B1/ko

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
    • H03D3/04—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by counting or integrating cycles of oscillations

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Television Signal Processing For Recording (AREA)
  • Networks Using Active Elements (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Circuits Of Receivers In General (AREA)
  • Television Receiver Circuits (AREA)

Abstract

내용 없음

Description

복조회로
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제6도는 본 발명에 관한 FM 복조회로의 1실시예를 나타내는 회로도.
제7(a)도 내지 제7(f)도는 제6도의 동작을 설명하기 위한 신호 파형도이다.

Claims (2)

  1. FM 신호의 리미터출력을 적분, 또는 소정시간지연하는 회로와, 이 적분 또는 소정시간 지연하는 회로의 출력과 상기 리미터 출력을 괘산(掛算)하는 괘산회로와, 이 괘산회로의 출력으로부터 상기 FM 신호의 복조신호를 얻는 출력회로와를 구비한 FM 복조회로.
  2. 상기 FM신호의 리미터출력과 이 리미터출력의 적분신호를 괘산하는 괘산회로를 더블밸런스형 차동증폭기로 하고, 이 덜블밸런스형 차동증폭기의 한쌍의 차동증폭기로 구성되는 부분의 한쪽의 입력을 상기 리미터출력으로 하고, 다른쪽의 입력을 상기 적분신호로 하고, 상기 한쌍의 차동증폭기의 전류전원측의 차동증폭기의 입력을 상기 리미터출력으로 한 것을 특징으로 하는 특허청구의 범위 제1항 기재의 FM 복조회로.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019810002415A 1980-07-03 1981-07-03 Fm 복조회로 KR860000186B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9094080A JPS5715505A (en) 1980-07-03 1980-07-03 Fm demodulation circuit
JP90940 1980-07-03

Publications (2)

Publication Number Publication Date
KR830006983A true KR830006983A (ko) 1983-10-12
KR860000186B1 KR860000186B1 (ko) 1986-02-28

Family

ID=14012442

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019810002415A KR860000186B1 (ko) 1980-07-03 1981-07-03 Fm 복조회로

Country Status (5)

Country Link
US (1) US4511849A (ko)
JP (1) JPS5715505A (ko)
KR (1) KR860000186B1 (ko)
DE (1) DE3125825C2 (ko)
GB (1) GB2079076B (ko)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61171322U (ko) * 1985-04-12 1986-10-24
JPH0659010B2 (ja) * 1985-12-18 1994-08-03 株式会社日立製作所 Ｆｍ信号復調器
EP0289346B1 (en) * 1987-04-30 1995-08-16 Matsushita Electric Industrial Co., Ltd. Frequency demodulation circuit
JPH083939B2 (ja) * 1988-09-19 1996-01-17 松下電器産業株式会社 Ｆｍ復調回路
IL89259A0 (en) * 1989-02-10 1989-09-10 Avr Communications Ltd Audio apparatus
JPH04134929A (ja) * 1990-09-26 1992-05-08 Pioneer Electron Corp マルチパス検出器
TW257917B (en) * 1994-04-12 1995-09-21 Philips Electronics Nv Receiver comprising a pulse count FM demodulator, and pulse count FM demodulator
JPH09172584A (ja) * 1995-12-20 1997-06-30 Rohm Co Ltd Ｓｉｆ信号処理回路

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4979719A (ko) * 1972-12-08 1974-08-01
JPS5639565B2 (ko) * 1972-12-21 1981-09-14
JPS5233460A (en) * 1975-09-10 1977-03-14 Sony Corp Fm demodulator
JPS52149907A (en) * 1976-06-09 1977-12-13 Hitachi Ltd Intra-office noise reducing device of fm receiver
JPS5328361A (en) * 1976-08-27 1978-03-16 Sony Corp Quadratur e phase detection circuit
EP0003393B1 (en) * 1978-01-18 1982-06-23 Rca Corporation Chroma demodulator circuit for secam television signals
JPS54101651A (en) * 1978-01-27 1979-08-10 Toshiba Corp Fm demodulator circuit
JPS54161260A (en) * 1978-06-09 1979-12-20 Sanyo Electric Co Ltd Fm demodulation circuit
US4342000A (en) * 1979-04-04 1982-07-27 Nippon Gakki Seizo Kabushiki Kaisha FM Detecting circuit
JPS55158733A (en) * 1979-05-29 1980-12-10 Toshiba Corp Delay type fm demodulating circuit
US4280100A (en) * 1979-09-20 1981-07-21 Bell & Howell Company Time modulation pulse averaging demodulator

Also Published As

Publication number Publication date
DE3125825C2 (de) 1985-09-26
US4511849A (en) 1985-04-16
DE3125825A1 (de) 1982-04-08
GB2079076B (en) 1984-11-21
KR860000186B1 (ko) 1986-02-28
JPS5715505A (en) 1982-01-26
GB2079076A (en) 1982-01-13
JPS6236401B2 (ko) 1987-08-06

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