JPS5715505A - Fm demodulation circuit - Google Patents

Fm demodulation circuit

Info

Publication number
JPS5715505A
JPS5715505A JP9094080A JP9094080A JPS5715505A JP S5715505 A JPS5715505 A JP S5715505A JP 9094080 A JP9094080 A JP 9094080A JP 9094080 A JP9094080 A JP 9094080A JP S5715505 A JPS5715505 A JP S5715505A
Authority
JP
Japan
Prior art keywords
signal
trs
demodulation circuit
transistors
circuit
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.)
Granted
Application number
JP9094080A
Other languages
English (en)
Other versions
JPS6236401B2 (ja
Inventor
Isamu Okui
Kozo Yoshihisa
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
Toshiba Corp
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP9094080A priority Critical patent/JPS5715505A/ja
Priority to GB8119947A priority patent/GB2079076B/en
Priority to US06/279,078 priority patent/US4511849A/en
Priority to DE3125825A priority patent/DE3125825C2/de
Priority to KR1019810002415A priority patent/KR860000186B1/ko
Publication of JPS5715505A publication Critical patent/JPS5715505A/ja
Publication of JPS6236401B2 publication Critical patent/JPS6236401B2/ja
Granted legal-status Critical Current

Links

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)
  • Television Signal Processing For Recording (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Television Receiver Circuits (AREA)
  • Networks Using Active Elements (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Circuits Of Receivers In General (AREA)
JP9094080A 1980-07-03 1980-07-03 Fm demodulation circuit Granted JPS5715505A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP9094080A JPS5715505A (en) 1980-07-03 1980-07-03 Fm demodulation circuit
GB8119947A GB2079076B (en) 1980-07-03 1981-06-29 Fm demodulators
US06/279,078 US4511849A (en) 1980-07-03 1981-06-30 FM Pulse counting demodulator with multiplier for input and delayed input signals
DE3125825A DE3125825C2 (de) 1980-07-03 1981-07-01 Schaltungsanordnung zur Demodulation von FM-Signalen
KR1019810002415A KR860000186B1 (ko) 1980-07-03 1981-07-03 Fm 복조회로

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
JPS5715505A true JPS5715505A (en) 1982-01-26
JPS6236401B2 JPS6236401B2 (ja) 1987-08-06

Family

ID=14012442

Family Applications (1)

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

Country Status (5)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61171322U (ja) * 1985-04-12 1986-10-24
JPS62143505A (ja) * 1985-12-18 1987-06-26 Hitachi Ltd Ｆｍ信号復調器

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4979719A (ja) * 1972-12-08 1974-08-01
JPS54161260A (en) * 1978-06-09 1979-12-20 Sanyo Electric Co Ltd Fm demodulation circuit

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5639565B2 (ja) * 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
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4979719A (ja) * 1972-12-08 1974-08-01
JPS54161260A (en) * 1978-06-09 1979-12-20 Sanyo Electric Co Ltd Fm demodulation circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61171322U (ja) * 1985-04-12 1986-10-24
JPS62143505A (ja) * 1985-12-18 1987-06-26 Hitachi Ltd Ｆｍ信号復調器
JPH0659010B2 (ja) * 1985-12-18 1994-08-03 株式会社日立製作所 Ｆｍ信号復調器

Also Published As

Publication number Publication date
GB2079076B (en) 1984-11-21
GB2079076A (en) 1982-01-13
US4511849A (en) 1985-04-16
JPS6236401B2 (ja) 1987-08-06
KR860000186B1 (ko) 1986-02-28
DE3125825A1 (de) 1982-04-08
KR830006983A (ko) 1983-10-12
DE3125825C2 (de) 1985-09-26

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