Methods, systems, and apparatus for determining transport...

H - Electricity – 04 – N

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Details

H04N 21/2385 (2011.01) H04N 21/278 (2011.01) H04L 27/34 (2006.01)

Patent

CA 2513528

The present invention enables determination of transport stream channels for video-on-demand (VOD) applications. A television terminal (50, 52, 54) is provided which includes a tuner for tuning to a home channel. An application program interface in the terminal (50, 52, 54) retrieves a transport stream identifier of a transport stream carrying the home channel. The home channel transport stream identifier defines a plurality of transport stream identifiers of a corresponding plurality of transport streams visible to the terminal (50, 52, 54). A video service controller (21) receives the home channel transport stream identifier from the application program interface. A VOD subsystem controller (26) controls distribution of a requested VOD service in response to video service controller (21) commands. A video pump (30, 32, 34) provides the requested VOD service to a re-multiplexing QAM device (31, 33, 35) for distribution on one of the transport streams visible to the terminal (50, 52, 54) based on commands from the VOD subsystem controller (26).

La présente invention concerne la détermination de canaux de flot de transport pour des applications de vidéo sur demande (VOD). Un terminal télévision (50, 52, 54) comporte un syntoniseur permettant de syntoniser un canal à domicile. Une interface de programme d'application dans le terminal (50, 52, 54) récupère un identificateur de flot de transport d'un flot de transport portant le canal à domicile. L'identificateur de flot de transport du canal à domicile définit une pluralité d'identificateurs de flot de transport d'une pluralité correspondante de flots de transport visibles par le terminal (50, 52, 54). Un contrôleur de service vidéo (21) reçoit l'identificateur de flot de transport du canal à domicile depuis l'interface de programme d'application. Un contrôleur du sous-système VOD (26) commande la distribution d'un service VOD requis en réponse aux commandes des contrôleurs de service vidéo (21). Une pompe vidéo (30, 32, 34) fournit le service VOD requis à un dispositif QAM de remultiplexage (31, 33, 35) en vue de la distribution sur un des flots de transport visibles par le terminal (50, 52, 54) d'après les commandes provenant du contrôleur (26) du sous-système VOD.

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