A method and apparatus for improved acquisition and...

H - Electricity – 04 – N

Patent

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Details

H04N 7/173 (2006.01) H04N 5/44 (2006.01) H04N 5/445 (2006.01) H04N 7/16 (2006.01) H04N 7/24 (2006.01)

Patent

CA 2450021

A method for acquiring and storing schedule event information from a cyclical broadcast in an interactive television system comprising a Head end (20), transmission media (32) and a client device such as a set top box (28) and display TV (26). An request queue for particular Event Information Table (EIT) schedule sections (42) is created and serviced in optimal fashion by selecting a section from the EIT request with the least acquisition latency based on the current position in the EIT broadcast cycle, the set top box (28) processing speed and the sequence of EIT sections (42) requested.

L'invention concerne un procédé permettant d'acquérir et de stocker des informations concernant des événements de programme, à partir d'une émission cyclique, dans un système de télévision interactif, comprenant un centre distributeur (20), un support de transmission (32), et un dispositif client, tel qu'un boîtier numérique (28) et qu'un téléviseur d'affichage (26). Une file de demandes relatives à des parties de programme (42) de tableau d'informations concernant des informations d'événements (EIT) est créée, et aménagée de manière optimale par le biais de la sélection d'une partie de la file de demandes EIT, la latence d'acquisition étant extrêmement faible par rapport à sa position actuelle dans le cycle d'émission EIT, à la vitesse de traitement du boîtier numérique (28), et à la séquence de parties EIT (42) demandées.

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