Patent ID: 7839299

Claim:
A remote controller which enables a terminal to control a remotely-controlled device through a network, the remote controller comprising: an address storage operable to acquire and store a current changeable address of the remotely-controlled device on the network received from the remotely-controlled device, which sends the current changeable address through the network at constant time intervals, and to associate the current changeable address of the remotely-controlled device with a fixed identification number of the remotely-controlled device that is stored in the address memory; a first communication interface operable to transmit, through the network at constant time intervals to the remotely-controlled device based on the current changeable address stored in the address storage, a status notification request, and operable to receive, from the remotely-controlled device in response to the status notification request, status information indicating a status of the remotely-controlled device; a status storage operable to store the status information received from the remotely-controlled device; and a second communication interface operable to transmit the stored status information to the terminal through the network in response to a status request from the terminal, wherein the first communication interface also receives other status data, spontaneously generated by the remotely-controlled device at sufficiently narrow predetermined timing intervals to reflect real time status changes in the remotely-controlled device, and wherein the terminal is operable to adjust the constant intervals that the remote controller transmits the status notification requests to the remotely controlled device.