H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 29/08 (2006.01) H04L 12/56 (2006.01)
Patent
CA 2471496
A communication system includes a device (101) and a server (104) those connected to the Internet, which transfers communications between the device (101) and a terminal (102) connectable to the Internet via the server (104). The device (101) transmits a notice packet periodically to the server (104). The server (104) transmits a connection request packet to the device (101) in reply to the notice packet when transfer to the device (101) is requested from the terminal (102). The device (101) transmits a TCP connection request to the server (104) when receiving the connection request packet from the server (104). The server (104) accepts the TCP connection request transmitted from the device (101) to the server (104) in reply to the connection request packet, thus to establish the TCP connection. Thus, the server (104) transfers communications between the terminal (102) and the device (101) on the TCP connection after the TCP connection is established.
La présente invention a trait à un système de communication comportant un dispositif (101) et un serveur (104) reliés à l'Internet, qui effectue le transfert de communications entre le dispositif (101) et un terminal (102) apte à être connecté à l'Internet via le serveur (104). Le dispositif (101) transmet un paquet de notification à intervalles réguliers au serveur (104). Le serveur (104) transmet un paquet de requête de connexion au dispositif (101) en réponse au paquet de notification lorsque le transfert vers le dispositif (101) est demandé à partir du terminal (102). Le dispositif (101) transmet une requête de connexion TCP au serveur (104) lors de la réception du paquet de requête de connexion en provenance du serveur (104). Le serveur (104) accepte le paquet de requête de connexion TCP transmis à partir du dispositif (101) au serveur (104) en réponse au paquet de requête de connexion, établissant ainsi la connexion TCP. Ainsi, le serveur (104) effectue le transfert de communications entre le terminal (102) et le dispositif (101) sur la connexion TCP suite à l'établissement de la connexion TCP.
Hamai Shinji
Kato Naonori
Kunihira Tadashi
Takechi Hideaki
Takeda Hidetoshi
Gowling Lafleur Henderson Llp
Matsushita Electric Industrial Co. Ltd.
Panasonic Corporation
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