FR2458943B1 - Circuit de demodulation de signaux a modulation de frequence - Google Patents

Circuit de demodulation de signaux a modulation de frequence

Info

Publication number
FR2458943B1
FR2458943B1 FR8012412A FR8012412A FR2458943B1 FR 2458943 B1 FR2458943 B1 FR 2458943B1 FR 8012412 A FR8012412 A FR 8012412A FR 8012412 A FR8012412 A FR 8012412A FR 2458943 B1 FR2458943 B1 FR 2458943B1
Authority
FR
France
Prior art keywords
modulated signal
demodulation circuit
frequency modulated
signal demodulation
frequency
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
Application number
FR8012412A
Other languages
English (en)
Other versions
FR2458943A1 (fr
Inventor
Kazuyuki Suenaga
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Publication of FR2458943A1 publication Critical patent/FR2458943A1/fr
Application granted granted Critical
Publication of FR2458943B1 publication Critical patent/FR2458943B1/fr
Expired 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
    • H03D3/26—Demodulation of angle-, frequency- or phase- modulated oscillations by means of sloping amplitude/frequency characteristic of tuned or reactive circuit
FR8012412A 1979-06-05 1980-06-04 Circuit de demodulation de signaux a modulation de frequence Expired FR2458943B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6946779A JPS55162607A (en) 1979-06-05 1979-06-05 Fm demodulation circuit

Publications (2)

Publication Number Publication Date
FR2458943A1 FR2458943A1 (fr) 1981-01-02
FR2458943B1 true FR2458943B1 (fr) 1986-08-14

Family

ID=13403488

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8012412A Expired FR2458943B1 (fr) 1979-06-05 1980-06-04 Circuit de demodulation de signaux a modulation de frequence

Country Status (5)

Country Link
US (1) US4359694A (fr)
JP (1) JPS55162607A (fr)
DE (1) DE3021256C2 (fr)
FR (1) FR2458943B1 (fr)
GB (1) GB2055266B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6049987B2 (ja) * 1980-12-22 1985-11-06 日本ビクター株式会社 Ｆｍ復調回路
US4518997A (en) * 1983-01-13 1985-05-21 Zenith Radio Corporation Demodulator having two phase shift networks for wide band television audio
FR2620881B1 (fr) * 1987-09-22 1989-12-29 Radiotechnique Ind & Comm Procede et dispositif pour accorder un circuit resonnant
GB2263369A (en) * 1992-01-20 1993-07-21 Racal Res Ltd Frequency discriminator

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2100394A (en) * 1936-01-23 1937-11-30 Bell Telephone Labor Inc Reception of frequency modulated waves and circuits therefor
DE1010565B (de) * 1956-03-22 1957-06-19 Telefunken Gmbh Fernsehempfaenger mit einem auf mindestens zwei Frequenzen umschaltbaren Tonzwischenfrequenzverstaerker, insbesondere Mehrnormenfernsehempfaenger
NL107366C (fr) * 1956-03-27
US3024421A (en) * 1957-09-20 1962-03-06 Jean H Clark Linear discriminator circuit
DE1150113B (de) * 1958-11-22 1963-06-12 Fernseh Gmbh Fernsehempfaenger nach dem Differenztraegerverfahren fuer wahlweisen Empfang von Fernseh-sendungen mit unterschiedlichem Frequenzabstand zwischen dem amplitudenmodulierten Bildtraeger und dem frequenzmodulierten Tontraeger
BE625466A (fr) * 1962-02-17
FR87133E (fr) * 1964-01-03 Int Standard Electric Corp
US3800226A (en) * 1971-01-07 1974-03-26 Magnavox Co Multiple frequency fm detector
JPS5855696B2 (ja) * 1976-12-11 1983-12-10 富士通テン株式会社 Ａｍ・ｆｍ兼用周波数弁別器
JPS54128257A (en) * 1978-03-29 1979-10-04 Hitachi Ltd Fm detection circuit

Also Published As

Publication number Publication date
JPS55162607A (en) 1980-12-18
DE3021256A1 (de) 1980-12-11
DE3021256C2 (de) 1986-01-16
GB2055266B (en) 1984-02-01
FR2458943A1 (fr) 1981-01-02
GB2055266A (en) 1981-02-25
US4359694A (en) 1982-11-16

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Legal Events

Date Code Title Description
ST Notification of lapse