FR2377131A1 - Installation de telecinema - Google Patents

Installation de telecinema

Info

Publication number
FR2377131A1
FR2377131A1 FR7700373A FR7700373A FR2377131A1 FR 2377131 A1 FR2377131 A1 FR 2377131A1 FR 7700373 A FR7700373 A FR 7700373A FR 7700373 A FR7700373 A FR 7700373A FR 2377131 A1 FR2377131 A1 FR 2377131A1
Authority
FR
France
Prior art keywords
flying spot
sequence
receiver
spot film
performs frame
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
FR7700373A
Other languages
English (en)
Other versions
FR2377131B1 (fr
Inventor
Sylvain Kretschmer
Rene Romeas
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 FR7700373A priority Critical patent/FR2377131A1/fr
Publication of FR2377131A1 publication Critical patent/FR2377131A1/fr
Application granted granted Critical
Publication of FR2377131B1 publication Critical patent/FR2377131B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/36—Scanning of motion picture films, e.g. for telecine
    • H04N3/38—Scanning of motion picture films, e.g. for telecine with continuously moving film

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Scanning (AREA)

Abstract

L'invention se rapporte aux installations de télécinéma à spot mobile et défilement continu comportant une entrée de commande de synchronisation permettant de régler la vitesse de défilement du film par rapport à des impulsions de synchronisation vidéo délivrées par un générateur de télévision. Selon l'invention, le mode de synchronisation du télécinéma consiste à repérer chaque début d'image du film et à verrouiller l'entrée de commande de synchronisation sur le signal de synchronisation vidéo dès que le début d'une image coïncide avec une impulsion de synchronisation correspondant à l'une des deux trames d'analyse, afin de respecter toujours la même séquence de trame par rapport au signal de synchronisation vidéo. L'invention s'applique aux télécinémas à défilement continu utilisant pour l'entraînement du film un moteur ayant deux possibilites de fonctionnement, chacune correspondant à une séquence de trame différente.
FR7700373A 1977-01-07 1977-01-07 Installation de telecinema Granted FR2377131A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7700373A FR2377131A1 (fr) 1977-01-07 1977-01-07 Installation de telecinema

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7700373A FR2377131A1 (fr) 1977-01-07 1977-01-07 Installation de telecinema

Publications (2)

Publication Number Publication Date
FR2377131A1 true FR2377131A1 (fr) 1978-08-04
FR2377131B1 FR2377131B1 (fr) 1982-02-19

Family

ID=9185240

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7700373A Granted FR2377131A1 (fr) 1977-01-07 1977-01-07 Installation de telecinema

Country Status (1)

Country Link
FR (1) FR2377131A1 (fr)

Also Published As

Publication number Publication date
FR2377131B1 (fr) 1982-02-19

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Legal Events

Date Code Title Description
ST Notification of lapse