GB1509958A - Control circuit for controlling the resting frequency of a frequency-modulated colour television sub-carrier - Google Patents

Control circuit for controlling the resting frequency of a frequency-modulated colour television sub-carrier

Info

Publication number
GB1509958A
GB1509958A GB3562275A GB3562275A GB1509958A GB 1509958 A GB1509958 A GB 1509958A GB 3562275 A GB3562275 A GB 3562275A GB 3562275 A GB3562275 A GB 3562275A GB 1509958 A GB1509958 A GB 1509958A
Authority
GB
United Kingdom
Prior art keywords
frequency
oscillator
during
resting
frequencies
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
GB3562275A
Other languages
English (en)
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 GB1509958A publication Critical patent/GB1509958A/en
Expired 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
    • H04N11/183—Encoding means therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)
  • Color Television Systems (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
GB3562275A 1974-08-30 1975-08-28 Control circuit for controlling the resting frequency of a frequency-modulated colour television sub-carrier Expired GB1509958A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7429725A FR2283611A1 (fr) 1974-08-30 1974-08-30 Dispositif d'asservissement de la frequence de repos d'une sous-porteuse de television en couleur et codeurs correspondants pour le systeme secam

Publications (1)

Publication Number Publication Date
GB1509958A true GB1509958A (en) 1978-05-10

Family

ID=9142706

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3562275A Expired GB1509958A (en) 1974-08-30 1975-08-28 Control circuit for controlling the resting frequency of a frequency-modulated colour television sub-carrier

Country Status (4)

Country Link
DE (1) DE2538355C2 (bg)
FR (1) FR2283611A1 (bg)
GB (1) GB1509958A (bg)
SU (1) SU645626A3 (bg)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2050105B (en) * 1979-04-05 1983-06-15 Rca Corp Automatic chroma gain control circuit for secam coder
GB2048610B (en) * 1979-04-05 1983-04-27 Rca Corp Automatic limit control for secam encoder
US4287530A (en) * 1980-05-09 1981-09-01 Motorola Inc. Demodulator system including a tunable discriminator suitable for use in a secam television receiver
NL8201188A (nl) * 1982-03-23 1983-10-17 Philips Nv Kodeerschakeling voor een secam-kleurentelevisie-overdracht.
FR2544946B1 (fr) * 1983-04-20 1987-02-13 Matra Oscillateur module en frequence et codeur de television incorporant un tel oscillateur
FR2550404B2 (fr) * 1983-06-01 1989-01-06 Cgv Comp Gen Videotech Systeme codeur couleur secam pour application grand public
DE3831240A1 (de) * 1988-09-14 1990-03-22 Thomson Brandt Gmbh Demodulator fuer frequenzmodulierte bildsignale

Also Published As

Publication number Publication date
SU645626A3 (ru) 1979-01-30
FR2283611B1 (bg) 1981-05-29
FR2283611A1 (fr) 1976-03-26
DE2538355C2 (de) 1982-07-15
DE2538355A1 (de) 1976-03-11

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee