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Machine translation
1. (WO1982000556) SYNCHRONIZER FOR TELEVISION AUDIO AND VIDEO SIGNALS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1982/000556    International Application No.:    PCT/US1981/000978
Publication Date: 18.02.1982 International Filing Date: 21.07.1981
IPC:
H04N 5/073 (2006.01)
Applicants: COOPER, J., Carl;
Inventors: COOPER, J., Carl;
Priority Data:
Title (EN) SYNCHRONIZER FOR TELEVISION AUDIO AND VIDEO SIGNALS
(FR) SYNCHRONISEUR DE SIGNAUX AUDIO ET VIDEO DE TELEVISION
Abstract: front page image
(EN)Audio and video portions of a television signal which have become out of synchronization because of delays resulting from video processing equipment are synchronized by measuring the video delay and delaying the associated audio signal by a corresponding amount. The delay detector (6) and a continuously variable audio delay circuit (8) function as a closed loop system to insert the correct amount of continuously variable audio delay time, so that the audio portion of the program may be synchronized to video signals having arbitrary and random processing delay times.
(FR)Des portions audio et video d'un signal de television desynchronisees a cause de retards dus au materiel de traitement video sont synchronisees en mesurant le retard video et en temporisant le signal audio associe d'une ampleur correspondante. Le detecteur de retard (6) et un circuit de retard audio variable de maniere continue (8) fonctionnent comme un systeme a boucle fermee pour introduire la valeur correcte du temps de retard audio variable en continu, de telle sorte que la portion audio du programme puisse etre synchronisee sur les signaux video ayant des temps de retard de traitement arbitraires et aleatoires.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)