Method and apparatus for providing vcr-like trick mode...

Details Method and apparatus for providing vcr-like trick mode... Method and apparatus for providing vcr-like trick mode...

H - Electricity

04

N

H04N 7/173 (2006.01)

Patent

CA 2208595

The present invention discloses methods and apparatus for providing VCR-like "trick mode" functions, such as pause, fast-forward, and rewind, in a distributed, video-on-demand program environment. Trick modes are supported by locally altering the viewing speed for each user who requests such functions, without affecting the operation of the central data source in any way. The invention thus allows a virtually unlimited number of viewers to enjoy random access to video programming -- including virtually continuous trick mode functionality -- and does so in a manner that is operable with existing telephone and cable distribution infrastructure.

L'invention concerne des procédés et dispositifs permettant de créer des fonctions de modification, telles que celles qu'on utilise sur un magnétoscope, par exemple, pause, avance rapide ou rebobinage, dans un environnement de programmes vidéo distribués. Ces fonctions consistent à modifier localement la vitesse de visualisation par chaque utilisateur qui le désire, sans perturber d'aucune façon le fonctionnement de la source centrale de données. De ce fait, l'invention permet à un nombre d'utilisateurs virtuellement illimité d'accéder sélectivement à la programmation vidéo - incluant la fonction de modification virtuellement continue - et peut être mise en application avec l'infrastructure existante de distribution par téléphone et par câble.

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