Tree architecture interactive teledistribution network

Details Tree architecture interactive teledistribution network Tree architecture interactive teledistribution network

H - Electricity

04

N

H04N 7/173 (2006.01)

Patent

CA 2054684

An interactive telebroadcasting network with tree architecture comprising an operating station in which the broadcasting of television programmes, images and sound programmes is controlled and a support for broad-band transmission of all the programmes is characterized in that it comprises a user derivation unit assembly (21, 25) comprising: means (50, 51a) for interrogating a user derivation unit (99); means (84, 72, 69, 68) for transmitting a programme request from the user to the operating station once the user's unit has been addressed by the operating station; means in the operating station for generating a validation signal (100) in response to the request; means (72, 80, 85, 87) arranged in the user derivation unit for selecting a programme from all the programmes broadcast dependent on the validation signal, the user derivation unit being located on the tree architecture between the operating station and the user's television receiver.

La présente invention concerne un réseau de télédistribution interactif à architecture arborescente du genre comportant un central dans lequel est contrôlée la distribution de programmes de télévision, d'images et de programmes sonores, et un support de transmission en large bande de l'ensemble des programmes, caractérisé en ce qu'il comporte un ensemble de boîtier dérivateur d'usager (21; 25) comportant: des moyens (50, 51a) pour interroger un boîtier dérivateur d'usager (99); des moyens (84, 72, 69, 68) pour transmettre une requête de programme de l'usager vers le central une fois que le boîtier de l'usager a été adressé par. le central; des moyens dans le central pour engendrer un signal (100) de validation en réponse à la requête; des moyens (72, 80, 85, 87) disposés dans le boîtier de dérivateur d'usager pour sélectionner un programme parmi l'ensemble des programmes distribués en fonction du signal validation; le boîtier dérivateur d'usager étant disposé sur l'architecture arborescente entre le central et le récepteur de télévision chez l'usager.

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