Private broadcast communications

Details Private broadcast communications Private broadcast communications

H - Electricity

04

H

H04H 60/23 (2008.01) H04L 9/00 (2006.01) H04M 11/06 (2006.01) H04N 7/16 (2006.01)

Patent

CA 2240700

A private broadcasting system includes communication terminals which are coupled to both a broadcasting network and point-to-point network. A private broadcasting device included in the broadcasting system is coupled to a database that contains a pool of encryption keys and a pool of channel numbers. The encryption keys and channel numbers are assigned to a private broadcast request when the communicating partners of the private broadcast request are available for communication. The encryption key and channel number is issued to each of the participating terminals. Each of the participating terminals encrypts and de-encrypts the information transmitted on and received from the broadcasting channel at the assigned channel number. In this way, the terminals communicate with each other privately excluding all other terminals that are not part of the private broadcast communication.

Système de radiodiffusion privée. Comprend des terminaux de communication qui sont couplés à la fois à un réseau de radiodiffusion et à un réseau point-à-point. Un dispositif de radiodiffusion privée compris dans le système de radiodiffusion est couplé à une base de données qui contient un regroupement de clés de chiffrement et un regroupement de numéros de canaux. Les clés de chiffrement et les numéros de canaux sont affectés à une demande de radiodiffusion privée lorsque les appelant et appelé de ladite demande sont prêts à communiquer. La clé de chiffrement et le numéro de canal sont transmis à chacun des terminaux participants. Chacun des terminaux participants chiffre et déchiffre l'information transmise et reçue sur le canal de radiodiffusion au numéro de canal affecté. Ainsi, leur communication est privée, excluant toute autre partie.

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