Network bandwidth optimization by dynamic channel allocation

H - Electricity – 04 – N

Patent

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H04N 21/2385 (2011.01) H04H 20/42 (2009.01)

Patent

CA 2370538

An information delivery system provides programming, such as video programming, by dynamically allocating the programming to channel slots, based on the availability of the channel slots. Programming with high viewership statistics is transmitted substantially continuously and programming with lower viewership statistics is transmitted "on-demand" in response to requests by users by way of a subscriber station. The subscriber stations maintain a map, provided by a corresponding session control manager, of currently available and currently transmitted channels. The information delivery system, in a preferred embodiment, takes the form of a Hybrid Fiber Coaxial (HFC) system.

Un système de diffusion d'informations diffuse une programmation, telle qu'une programmation vidéo, en attribuant dynamiquement des tranches de temps de canaux à cette programmation, en fonction de la disponibilité de ces tranches de temps de canaux. La programmation associée à des valeurs statistiques d'audience élevées est diffusée de manière sensiblement continue et la programmation associée à des valeurs statistiques d'audience faibles est diffusée sur demande en fonction des requêtes des utilisateurs, au moyen d'une station d'abonné. Les stations d'abonnés mettent à jour une carte, fournie par un gestionnaire de commande des sessions correspondantes, des canaux disponibles et des canaux utilisés pour la diffusion. Le système de diffusion d'informations se présente, dans une réalisation préférée, sous la forme d'un système hybride à lignes optiques et à lignes coaxiales (HFC).

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