Customer premises equipment receives high-speed downstream...

H - Electricity – 04 – N

Patent

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Details

H04N 7/173 (2006.01) H04L 12/28 (2006.01) H04L 29/06 (2006.01) H04N 7/10 (2006.01) H04H 1/02 (2006.01)

Patent

CA 2186221

In accordance with an embodiment of the present invention, a home controller receives signals from the cable television system and utilizes a cable demodulator tuned to the RF frequency of the channel which carries the data information. The cable demodulator demodulates the RF encoded signals into conventional baseband digital form which are transmitted to a packet receiver which decodes packets addressed to individual users. If a packet is addressed to the user, the packet receiver transmits the corresponding data such as by am ETHERNET transceiver to the user's personal computer. A communication controller may be utilized to provide an interface between the personal computer and the cable demodulator, thereby enabling the personal computer to select the channel to which the cable demodulator is tuned, in order to permit multiple data channels to be utilized.

Selon une forme d'exécution de la présente invention, un dispositif de commande à domicile reçoit des signaux d'un système de télévision par câble et utilise un démodulateur de câble accordé à la fréquence RF du canal qui transporte les informations/données. Le démodulateur du câble démodule les signaux RF codés en forme numérique, dans une bande de base usuelle, et ces signaux numériques sont transmis vers un récepteur de paquets qui décode les paquets adressés à des utilisateurs individuels. Lorsqu'un paquet est adressé à l'utilisateur, le récepteur de paquets transmet les données correspondantes, par exemple par un émetteur-récepteur ETHERNET, vers l'ordinateur personnel de l'utilisateur. On peut utiliser un dispositif de commande des communications pour assurer l'interface entre l'ordinateur personnel et le démodulateur du câble, ce qui permet à l'ordinateur personnel de choisir le canal auquel le démodulateur du câble est accordé, pour permettre l'utilisation de canaux de données multiples.

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