FR2412216A1 - Circuit de traitement des signaux de chrominance dans le systeme secam - Google Patents

Circuit de traitement des signaux de chrominance dans le systeme secam

Info

Publication number
FR2412216A1
FR2412216A1 FR7738094A FR7738094A FR2412216A1 FR 2412216 A1 FR2412216 A1 FR 2412216A1 FR 7738094 A FR7738094 A FR 7738094A FR 7738094 A FR7738094 A FR 7738094A FR 2412216 A1 FR2412216 A1 FR 2412216A1
Authority
FR
France
Prior art keywords
during line
circuit
chrominance signal
processing circuit
signal processing
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
FR7738094A
Other languages
English (en)
Other versions
FR2412216B1 (fr
Inventor
Michel Van Den Driessche
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
Priority to FR7738094A priority Critical patent/FR2412216A1/fr
Priority to SU782700454A priority patent/SU803876A3/ru
Publication of FR2412216A1 publication Critical patent/FR2412216A1/fr
Application granted granted Critical
Publication of FR2412216B1 publication Critical patent/FR2412216B1/fr
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

CIRCUIT DE TRAITEMENT DES SIGNAUX DE CHROMINANCE DANS LE SYSTEME SECAM, DESTINE A SUPPRIMER, DANS CES SIGNAUX, LES PARASITES ET DEFORMATIONS D'ONDE QUI S'Y SUPERPOSENT PENDANT L'INTERVALLE DE RETOUR DE LIGNE, PUIS A DESACCENTUER CES SIGNAUX DE CHROMINANCE. L'INVENTION PREVOIT DE DEMODULER LES SIGNAUX PAR UN DISCRIMINATEUR A LARGE ZONE UTILE DE TRAVAIL, PUIS DE LES ADAPTER SOUS FAIBLE IMPEDANCE DE FACON A NE PAS LES DEFORMER A TRAVERS LE CIRCUIT DE DESACCENTUATION. PENDANT L'INTERVALLE DE RETOUR DE LIGNE, LE CIRCUIT DE DESACCENTUATION EST COURT-CIRCUITE ET UNE TENSION MEMORISEE EST DELIVREE, EGALE A LA TENSION DEMODULEE DE F ROUGE OU F BLEU TRANSMISE EN DEBUT DE LIGNE. APPLICATION AU CIRCUIT DE DECODAGE DES COULEURS DANS LES RECEPTEURS DE TELEVISION EN COULEURS SELON LE SYSTEME SECAM.
FR7738094A 1977-12-16 1977-12-16 Circuit de traitement des signaux de chrominance dans le systeme secam Granted FR2412216A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7738094A FR2412216A1 (fr) 1977-12-16 1977-12-16 Circuit de traitement des signaux de chrominance dans le systeme secam
SU782700454A SU803876A3 (ru) 1977-12-16 1978-12-15 Устройство коррекции видеосигналаСиСТЕМы цВЕТНОгО ТЕлЕВидЕНи CEKAM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7738094A FR2412216A1 (fr) 1977-12-16 1977-12-16 Circuit de traitement des signaux de chrominance dans le systeme secam

Publications (2)

Publication Number Publication Date
FR2412216A1 true FR2412216A1 (fr) 1979-07-13
FR2412216B1 FR2412216B1 (fr) 1982-10-22

Family

ID=9198963

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7738094A Granted FR2412216A1 (fr) 1977-12-16 1977-12-16 Circuit de traitement des signaux de chrominance dans le systeme secam

Country Status (2)

Country Link
FR (1) FR2412216A1 (fr)
SU (1) SU803876A3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2491710A1 (fr) * 1980-10-02 1982-04-09 Philips Nv Circuit demodulateur pour l'obtention d'un signal sequentiel par lignes a partir d'un signal d'information couleur module en frequence
FR2500702A1 (fr) * 1981-02-24 1982-08-27 Thomson Brandt Filtre de desaccentuation du signal de chrominance et recepteur de television comportant un tel filtre

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2491710A1 (fr) * 1980-10-02 1982-04-09 Philips Nv Circuit demodulateur pour l'obtention d'un signal sequentiel par lignes a partir d'un signal d'information couleur module en frequence
FR2500702A1 (fr) * 1981-02-24 1982-08-27 Thomson Brandt Filtre de desaccentuation du signal de chrominance et recepteur de television comportant un tel filtre
EP0059133A1 (fr) * 1981-02-24 1982-09-01 Societe Electronique De La Region Pays De Loire Filtre de désaccentuation du signal de chrominance, et récepteur de télévision comportant un tel filtre

Also Published As

Publication number Publication date
SU803876A3 (ru) 1981-02-07
FR2412216B1 (fr) 1982-10-22

Similar Documents

Publication Publication Date Title
AU549450B2 (en) Television receiver including a circuit for doubling line scanning frequency
ES2115514A1 (es) Metodo y aparato para identificar canales de señalizacion.
EP0172474A3 (en) Ccd output signal generating circuit
ES8304394A1 (es) "una disposicion de circuito para controlar el nivel de corriente continua de una senal de video".
JPS55112081A (en) Solid state pickup device
EP0293135A3 (fr) Adaptateur de câble comprenant un commutateur
FR2412216A1 (fr) Circuit de traitement des signaux de chrominance dans le systeme secam
MY104156A (en) Blanking circuits for television receivers
ES8205488A1 (es) Perfeccionamientos introducidos en un receptor de television
GB2005111A (en) A telephone charge pulse receiver circuit
EP0172572A3 (en) Televison sync signal processing circuit
GB2188512B (en) Subcarrier generating device for color signal processing circuit
EP0158409A3 (fr) Détecteur de seuil perfectionné
JPS6459092A (en) Radar equipment
JPS57131067A (en) Trigger circuit for signal waveform observing device
SU1177955A1 (ru) Устройство дистанционного управлени включением радиостанции
JPS57148482A (en) Time code signal generating equipment
Thelen Trunk Test Circuit
AU554100B2 (en) Television receiver including a circuit for doubling line scanning frequency
JPS54804A (en) Impedance matching system for multi-frequency signal receiver
DE3571295D1 (en) Circuit arrangement for collision detection
JPS57131181A (en) Automatic switching device of antenna
JPS57142041A (en) Storage circuit for reception electric field in radio equipment
EP0113082A3 (fr) Dispositif pour la réception d'un signal optique
GB1418085A (en) Circuit arrangement for generating prefix signals in telecommuni cation and particularly telephone systems

Legal Events

Date Code Title Description
ST Notification of lapse