Patent ID: 7680878
Filing Date: 2010-03-16
Classification: H04L,H04W

Abstract:
1. A home terminal apparatus connected to a router via a home network and for sending/receiving packet data to and from the router connected to an external network to which a server apparatus is connected, said home terminal apparatus comprising: a packet generation unit operable to generate packet data to be sent to the server apparatus via the router; a protocol determination unit operable to determine a communication protocol used between said home terminal apparatus and the server apparatus; and a communication unit operable to send/receive the packet data to and from the server apparatus via the router, wherein said protocol determination unit is operable to determine that said home terminal apparatus is to communicate with the server apparatus using (i) a first communication protocol, being a User Datagram Protocol (UDP), when said communication unit sends address notification packet data generated by said packet generation unit to the server apparatus periodically and repeatedly at a predetermined sending interval via the router, and (ii) a second communication protocol, being a Transmission Control Protocol (TCP), when said communication unit sends/receives control information to and from the server apparatus, wherein when said communication unit receives, from the server apparatus, a notification packet indicating an occurrence of a control request to control said home terminal apparatus while said communication unit is repeating the sending, using the UDP, of the address notification packet on a periodical basis: