Patent ID: 8532014

Claim:
A relay device comprising: a communication unit operable to make a connection with a receiving terminal that is receiving, not via the relay device, media data transmitted from a data delivery apparatus; a data storage for storing information indicating a media data processing capacity of the receiving terminal and indicating a media data processing capacity of other communications terminals different from the receiving terminal; a controller for making a transmission request to the data delivery apparatus for the media data corresponding to the information stored in the data storage, the transmission request being a request for the media data corresponding to a highest performance level of the media data processing capacity of the other communications terminals and the receiving terminal; a receiver for receiving the media data transmitted from the data delivery apparatus in response to the transmission request from the controller; a buffer for holding the media data received by the receiver; a signaling unit operable to accept a terminal switching instruction from the receiving terminal, the terminal switching instruction including information of a switching destination terminal which is one of the other communications terminals; and a transfer unit operable to transfer, to the switching destination terminal, the media data held in the buffer and corresponding to the media data processing capacity of the switching destination terminal, after the terminal switching instruction is accepted by the signaling unit.