FR2556524B1 - Circuit de suppression des variations d'amplitude des signaux modules en frequence - Google Patents

Circuit de suppression des variations d'amplitude des signaux modules en frequence

Info

Publication number
FR2556524B1
FR2556524B1 FR848418782A FR8418782A FR2556524B1 FR 2556524 B1 FR2556524 B1 FR 2556524B1 FR 848418782 A FR848418782 A FR 848418782A FR 8418782 A FR8418782 A FR 8418782A FR 2556524 B1 FR2556524 B1 FR 2556524B1
Authority
FR
France
Prior art keywords
amplitude
circuit
modulated signals
frequency modulated
suppressing variations
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
FR848418782A
Other languages
English (en)
Other versions
FR2556524A1 (fr
Inventor
Rodney James Lawton
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.)
Plessey Overseas Ltd
Original Assignee
Plessey Overseas 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 Plessey Overseas Ltd filed Critical Plessey Overseas Ltd
Publication of FR2556524A1 publication Critical patent/FR2556524A1/fr
Application granted granted Critical
Publication of FR2556524B1 publication Critical patent/FR2556524B1/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
    • 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
    • H03D3/001—Details of arrangements applicable to more than one type of frequency demodulator

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Circuits Of Receivers In General (AREA)
  • Details Of Television Scanning (AREA)
  • Amplifiers (AREA)
  • Burglar Alarm Systems (AREA)
  • Superheterodyne Receivers (AREA)
  • Manipulation Of Pulses (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Surgical Instruments (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
FR848418782A 1983-12-09 1984-12-07 Circuit de suppression des variations d'amplitude des signaux modules en frequence Expired FR2556524B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB838332897A GB8332897D0 (en) 1983-12-09 1983-12-09 Fm detection

Publications (2)

Publication Number Publication Date
FR2556524A1 FR2556524A1 (fr) 1985-06-14
FR2556524B1 true FR2556524B1 (fr) 1989-10-27

Family

ID=10553079

Family Applications (1)

Application Number Title Priority Date Filing Date
FR848418782A Expired FR2556524B1 (fr) 1983-12-09 1984-12-07 Circuit de suppression des variations d'amplitude des signaux modules en frequence

Country Status (5)

Country Link
US (1) US4642490A (fr)
JP (3) JPS60141004A (fr)
DE (1) DE3444185A1 (fr)
FR (1) FR2556524B1 (fr)
GB (4) GB8332897D0 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2175159B (en) * 1985-05-13 1989-07-05 Plessey Co Plc Fm receivers
GB2226723B (en) * 1988-10-06 1992-12-23 Peter Smolka A method of and system for demodulating fm signals
NL8802531A (nl) * 1988-10-14 1990-05-01 Philips Nv Fasedetector en frequentiedemodulator voorzien van zulk een fasedetector.
GB2282030B (en) * 1993-09-14 1997-09-24 Plessey Semiconductors Ltd Direct conversion receiver
JP2576774B2 (ja) * 1993-10-29 1997-01-29 日本電気株式会社 トリプラおよびクァドルプラ
GB2329600B (en) * 1996-05-29 2000-01-12 Honda Motor Co Ltd Method of forming protective film of coating surface of automobiles
US6426660B1 (en) * 2001-08-30 2002-07-30 International Business Machines Corporation Duty-cycle correction circuit
US7898302B1 (en) * 2008-10-31 2011-03-01 Maxim Integrated Products, Inc. Compact integrated circuit solutions for driving liquid lenses in autofocus applications
KR101905785B1 (ko) * 2011-04-29 2018-10-10 마벨 월드 트레이드 리미티드 자가-혼합을 이용하는 주파수 체배
US9966937B2 (en) 2011-04-29 2018-05-08 Marvell World Trade Ltd. Frequency multipliers
JP6333193B2 (ja) * 2015-02-19 2018-05-30 三菱電機株式会社 受信機

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2488936A (en) * 1940-12-12 1949-11-22 Rca Corp Frequency-modulation recording and reproducing and its combination with a radio receiver
NL136716C (fr) * 1946-12-10
GB1063641A (en) * 1964-06-01 1967-03-30 Thorn Electronics Ltd Improvements in frequency discriminators
GB1217502A (en) * 1967-01-18 1970-12-31 Plessey Co Ltd Improvements in or relating to logic circuits
US3591858A (en) * 1968-05-31 1971-07-06 Beckman Instruments Inc Pulse rate to analog converter
FR2122377B1 (fr) * 1971-01-22 1976-05-28 Labo Electro Autom Dauph
GB1409001A (en) * 1973-03-22 1975-10-08 British Aircraft Corp Ltd Frequency meter
US3935539A (en) * 1974-04-08 1976-01-27 The United States Of America As Represented By The Secretary Of The Navy A-C signal multiplying circuit by a ratio of whole numbers the numerator of which is greater than one and greater than the denominator
US3995224A (en) * 1975-04-30 1976-11-30 Rca Corporation Fast automatic gain control circuit with adjustable range
US4388595A (en) * 1981-03-26 1983-06-14 Bell Telephone Laboratories, Incorporated Apparatus and method for removing bias distortion from a product demodulator

Also Published As

Publication number Publication date
GB8414056D0 (en) 1984-07-04
US4642490A (en) 1987-02-10
GB8428217D0 (en) 1984-12-19
FR2556524A1 (fr) 1985-06-14
JPS60186104A (ja) 1985-09-21
GB8419176D0 (en) 1984-08-30
JPS60141004A (ja) 1985-07-26
GB2151095B (en) 1987-03-18
GB2151093A (en) 1985-07-10
DE3444185A1 (de) 1985-06-20
GB2151094A (en) 1985-07-10
GB2151093B (en) 1987-03-18
GB2151095A (en) 1985-07-10
GB8332897D0 (en) 1984-01-18
JPS60142604A (ja) 1985-07-27

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Legal Events

Date Code Title Description
ST Notification of lapse
AR Application made for restoration
BR Restoration of rights
ST Notification of lapse