JPS5698910A - Frequency demodulator - Google Patents

Frequency demodulator

Info

Publication number
JPS5698910A
JPS5698910A JP18026480A JP18026480A JPS5698910A JP S5698910 A JPS5698910 A JP S5698910A JP 18026480 A JP18026480 A JP 18026480A JP 18026480 A JP18026480 A JP 18026480A JP S5698910 A JPS5698910 A JP S5698910A
Authority
JP
Japan
Prior art keywords
frequency demodulator
demodulator
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.)
Pending
Application number
JP18026480A
Other languages
English (en)
Inventor
Buan Zantan Furansowa
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Publication of JPS5698910A publication Critical patent/JPS5698910A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/06—Transmission systems characterised by the manner in which the individual colour picture signal components are combined
    • H04N11/18—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous and sequential signals, e.g. SECAM-system
    • H04N11/186—Decoding means therefor
    • 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
    • H03D3/24—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits
    • H03D3/241—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits the oscillator being part of a phase locked loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Processing Of Color Television Signals (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
JP18026480A 1979-12-21 1980-12-18 Frequency demodulator Pending JPS5698910A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7931485A FR2472302A1 (fr) 1979-12-21 1979-12-21 Circuit a asservissement de phase, et dispositif comportant un tel circuit notamment pour la television

Publications (1)

Publication Number Publication Date
JPS5698910A true JPS5698910A (en) 1981-08-08

Family

ID=9233093

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18026480A Pending JPS5698910A (en) 1979-12-21 1980-12-18 Frequency demodulator

Country Status (9)

Country Link
US (1) US4410856A (ja)
JP (1) JPS5698910A (ja)
DD (1) DD155845A5 (ja)
DE (1) DE3048104A1 (ja)
FR (1) FR2472302A1 (ja)
GB (1) GB2066599B (ja)
IT (1) IT1129473B (ja)
PL (1) PL228661A1 (ja)
RO (1) RO78686A (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4451792A (en) * 1981-10-23 1984-05-29 Motorola, Inc. Auto-tuned frequency discriminator
NL8801143A (nl) * 1988-05-02 1989-12-01 Philips Nv Frequentiedemodulatieschakeling.
DE4113646A1 (de) * 1991-04-26 1992-10-29 Philips Patentverwaltung Schaltungsanordung zum demodulieren eines farbsignals in einem fernsehsignal
GB2307150B (en) * 1995-11-09 1999-10-20 Northern Telecom Ltd An interference reduction scheme and method
JP3614620B2 (ja) * 1997-07-30 2005-01-26 アルプス電気株式会社 テレビジョン信号及びｆｍ放送信号の復調器並びにテレビジョン信号及びｆｍ放送信号の受信機
FR2778053B1 (fr) * 1998-04-24 2000-07-21 Sgs Thomson Microelectronics Demodulateur de signal de chrominance secam a deux voies rouge>bleu et a oscillateur unique
FR2778052B1 (fr) * 1998-04-24 2000-07-21 Sgs Thomson Microelectronics Demodulateur, en particulier de signal de chrominance secam, a double ajustage en frequence
JP2003533929A (ja) * 2000-05-16 2003-11-11 インフィネオン テクノロジーズ アクチエンゲゼルシャフト 周波数復調器において許容誤差を修正するための回路構造

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1478484A (fr) * 1966-03-04 1967-04-28 Cft Comp Fse Television Perfectionnements aux dispositifs de restitution de composante continue et d'effacement de signaux parasites en télévision en couleurs
FR1563825A (ja) * 1968-01-23 1969-04-18
CH543193A (de) * 1972-03-30 1973-10-15 Bbc Brown Boveri & Cie Frequenzdetektor
US3939432A (en) * 1973-05-15 1976-02-17 Tektronix, Inc. FM limiter with input level sensing and TTL level output
US3863264A (en) * 1973-05-15 1975-01-28 Tektronix Inc Sequential color and memory decoder
DE2413913A1 (de) * 1974-03-22 1975-09-25 Alfons Simon Kupplungsmechanismus fuer insbesondere uhren
US4006429A (en) * 1975-09-26 1977-02-01 Jerrold Electronics Corporation Homodyne automatic frequency control circuit
FR2413837A1 (fr) * 1977-12-30 1979-07-27 Radiotechnique Recepteur de television selon le procede " secam ", muni d'un dispositif de calage des niveaux de reference de couleurs

Also Published As

Publication number Publication date
DE3048104A1 (de) 1981-09-10
FR2472302A1 (fr) 1981-06-26
GB2066599A (en) 1981-07-08
IT8068961A0 (it) 1980-12-19
US4410856A (en) 1983-10-18
DD155845A5 (de) 1982-07-07
IT1129473B (it) 1986-06-04
RO78686A (ro) 1982-03-24
GB2066599B (en) 1984-01-25
PL228661A1 (ja) 1981-08-21

Similar Documents

Publication Publication Date Title
IL59799A0 (en) Frequency moldulator
JPS5693437A (en) Receiver
JPS5640332A (en) Radio reciever
GB2066006B (en) Superregvenerative receiver
JPS5561147A (en) Frequency discriminator
JPS5619208A (en) Oscillator
JPS5634224A (en) Receiver
IL60172A0 (en) Demodulator
JPS5596721A (en) Receiver
JPS55132118A (en) Piezooelectric resonator
GB2066607B (en) Oscillator
GB2064892B (en) Frequency multipliers
GB2066599B (en) Frequency demodulator
JPS5730455A (en) Frequency demodulator
JPS55151803A (en) Frequency multiplier
JPS55160530A (en) Whisk
JPS55117893A (en) High frequency heater
JPS55111089A (en) High frequency heater
GB2049252B (en) Coinvalidating arrangements
JPS5560329A (en) Frequency dicriminator
JPS5639603A (en) Trapatt oscillator
JPS55159297A (en) Multiichannel receiver
JPS5620310A (en) Discriminator
JPS55158019A (en) Whisk
JPS55120091A (en) High frequency heater