Transmission and reception of television programs and an...

H - Electricity – 04 – N

Patent

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Details

H04N 7/08 (2006.01) H04N 5/44 (2006.01) H04N 7/24 (2006.01) H04N 5/445 (2006.01) H04N 7/16 (2006.01)

Patent

CA 2243700

A method and arrangement are disclosed for transmitting television programs via a plurality of channels, and an additional data service, for example, an Electronic Program Guide, via a selected television channel. While processing and displaying the program guide, prior art television receivers cannot continue the reproduction of a currently received TV program because the program is generally transmitted via a different channel. The invention provides a solution to this problem by duplicating a signal component representing, for example, the audio contents of the various television programs in said selected television channel. This allows customers to keep up with the service they were watching before, and to immediately return to the program if something of interest appears to happen. The invention is particularly applicable in Digital Video Broadcast (DVB) systems where each channel can accommodate a plurality of TV programs.

Procédé et structure pour émettre des programmes de télévision via une pluralité de canaux, et service auxiliaire de transmission de données, comme par exemple un guide de programmes électronique, via un canal de télévision sélectionné. Dans l'état actuel de la technique, les récepteurs de télévision ne peuvent poursuivre la reproduction d'un programme T.V. en cours pendant le traitement et l'affichage du guide de programme, parce que le programme est généralement transmis par un canal différent. L'invention offre une solution à ce problème qui consiste à dupliquer une composante de signal représentant par exemple le contenu audio des divers programmes télévisés dans ce canal sélectionné. Ce procédé permet aux clients de garder le contact avec le service qu'ils regardaient précédemment et de retourner immédiatement au programme si quelque chose d'intéressant semble se produire. L'invention convient en particulier à des systèmes de radiodiffusion vidéonumérique (DVB) dans lesquels chaque canal peut prendre en charge une pluralité de programmes T.V.

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