System and method for transmitting and receiving variable...

Details System and method for transmitting and receiving variable... System and method for transmitting and receiving variable...

H - Electricity

04

L

H04L 9/32 (2006.01) H04B 7/204 (2006.01) H04H 1/00 (2006.01)

Patent

CA 2177571

Authorization information, such as blackout and spotlight regions, circular blackout and spotlight regions, and tier pointers are transmitted from an encoder to a decoder in a plurality of sessions of data frames. Service data are fed to a multiplexer unit (110) for uplink to a satellite (160), which feeds the data to decoders in various areas. The entire process at the headend is overseen by a control computer (120).

Des informations d'autorisation, telles que celles relatives à des zones d'absorption complète des signaux et de taches de lumière, à des zones circulaires d'absorption complète des signaux et de taches de lumière, et à des pointeurs superposés, sont envoyées d'un codeur à un décodeur dans une pluralité de sessions de blocs d'information. Des données de service sont fournies à une unité de multiplexeur (110) pour qu'il les envoie par liaison montante à un satellite (160) qui fournit les données à des décodeurs installés dans diverses regions. Tout ce processus est surveillé à la tête du réseau par un ordinateur de commande (120).

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