Bandwidth management techniques for delivery of interactive...

H - Electricity – 04 – N

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Details

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

Patent

CA 2397915

In order to enable more efficient utilization of the finite bandwidth available for distribution of interactive program guide (IPG) video sequences, novel systems and methods are introduced to provide bandwidth management to handle broadcast, narrowcast, pointcast, and "shared" pointcast streams in combination. Bandwidth management techniques in an end-to-end system (100) play a key role in latency reduction and improving overall efficiency of the interactive system. Methods for managing delivery of video sequences for an IPG to a plurality of terminals (108) are described. The methods comprise delivery by way of various techniques, including broadcasting (200), pointcasting (300), narrowcasting (400), and variants and combinations (500, 600) of those techniques.

Pour parvenir à une utilisation plus efficace de la largeur de bande finie disponible pour la distribution de séquences vidéo de guide de programme interactif (IPG), on a mis au point des systèmes et des méthodes de gestion de la largeur de bande pour le traitement combiné de trains de données par diffusion large, diffusion ciblée, diffusion ponctuelle (pointcast) ou ponctuelle </= partagée >/= . Dans un système de bout en bout (100), les techniques de gestion de la largeur de bande jouent un rôle déterminant dans la réduction de la latence et l'amélioration de l'efficacité globale d'un système interactif. Sont décrites de méthodes de gestion de la fourniture de séquences vidéo pour IPG à une pluralité de terminaux (108). Pour la fourniture de ces séquences, on recourt à diverses techniques, dont la diffusion générale (200), la diffusion ponctuelle (300), la diffusion ciblée (400) ainsi que des variantes et des combinaisons (500, 600) de ces techniques.

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