Digital television transmitting system and method of...

Details Digital television transmitting system and method of... Digital television transmitting system and method of...

H - Electricity

04

N

H04N 7/015 (2006.01)

Patent

CA 2654954

A digital broadcast system and processing method that can transmit/receive digital broadcast signal are disclosed. More specifically, when a known data sequence is inputted to a trellis encoder, by having the transmitting system initialize a memory within the trellis encoder and trellis -encode the inputted data, thereby transmitted the processed data, and by having the receiving system estimate known data information, which is to be used for frequency synchronization and channel equalization, the receiving performance of the receiving system may be enhanced in a situation undergoing severe and frequent channel changes.

L'invention concerne un système de diffusion numérique et un procédé de traitement qui peuvent transmettre/recevoir un signal de diffusion numérique. Plus spécifiquement, lorsqu'une séquence de données connues est entrée sur un codeur en treillis, grâce au système de transmission qui initialise une mémoire dans le codeur en treillis et qui code en treillis les données entrées, transmettant de ce fait les données traitées, et grâce au système de réception qui estime des informations de données connues, qui doivent être utilisées pour une synchronisation de fréquence et une égalisation de canal, les performances de réception du système de réception peuvent être améliorées dans une situation de changements de canaux fréquents et contraignants.

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