Method of communication for an intelligent digital...

H - Electricity – 04 – L

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H04L 12/16 (2006.01) G06F 9/445 (2006.01) H04L 12/18 (2006.01) G07F 17/30 (2006.01) H04N 7/173 (2006.01)

Patent

CA 2201914

Method of communication for an intelligent digital, audiovisual playback system. The method for communication between a central server and a computerized jukebox is characterized in that it operates in a conference mode and includes sending, prior to any transaction, a header including the identity of the destination target, the originator identity and the packet size; sending the response of the server as a data packet, each packet from the server being encrypted by the code which identifies the jukebox software. The jukebox receives and then decrypts the data packet. At the same time the packet controls the data received by the cyclic redundancy check method (CRC) and sends an acknowledgement of receipt to the server stating that the information received is accurate. The server can then prepare a new packet addressed to the unit.

La présente invention concerne un procédé de communication pour système de reproduction audiovisuelle numérique intelligent. Le procédé de communication entre un serveur central et un juke-box informatisé est caractérisé en ce qu'il fonctionne dans un mode conférence et comporte les étapes suivantes: envoi d'un entête avant toute transaction qui inclura l'identité de la cible de destination, l'identité de l'émetteur, et la taille des paquets; la réponse du serveur envoyée sous forme de paquet de données, chaque paquet envoyé par le serveur étant encrypté en utilisant le code d'identification du logiciel du juke-box; la réception d'un paquet de donnée par le juke-box qui décrypte, le paquet effectue en même temps un contrôle des données reçues par la méthod CRC et envoie un accusé de réception au serveur indiquant l'exactitude des informations reçues, pour lui permettre de préparer et envoyer un nouveau paquet à destination de l'unité.

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