H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 7/167 (2006.01) H04N 5/44 (2006.01) H04N 7/26 (2006.01) H04N 7/58 (2006.01) H04N 7/66 (2006.01) H04H 1/00 (2006.01)
Patent
CA 2239697
A scalable digital television system provides enhanced flexibility for program delivery to pay television subscribers. The system provides from one to sixteen audio/video programs to be delivered within the normal 6 MHz television bandwidth commonly referred to as a channel. Received analog television programs are sampled and converted to digital signals. The digital bitstreams are then processed to remove redundant information using the MPEG industry standard algorithms. The amount of redundant information removed determines the compression ratio for that program. The compression ratio of each program is independently programmable.
Système de télévision numérique dimensionnable améliorant la souplesse de diffusion d'émissions de télévision payante. Le système offre entre une et seize émissions son/image à diffuser dans une bande de télévision de 6 MHz normale, communément appelée « canal ». Des émissions de télévision analogique reçues sont échantillonnées et converties en signaux numériques. Les trains binaires numériques sont ensuite dépouillés de l'information redondante au moyen d'algorithmes conformes à la norme MPEG. La quantité d'information redondante enlevée détermine le taux de compression de l'émission. Le taux de compression de chaque émission est programmable de façon indépendante.
Decathlon Communications Inc.
Sim & Mcburney
LandOfFree
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