Patent ID: 8745285

Claim:
A sink device having an AV receiving portion for receive AV data including video and/or audio that are output through multicast wireless transmission from a source device, the sink device further comprising: a reproducing portion for extracting and reproducing AV data transmitted to the sink device from the AV data received by the AV receiving portion; a device information receiving portion for receiving a part of or the whole sink device information from the source device by wireless, the sink device information being information correlating identification information for identifying a plurality of sink devices including the sink device with state information indicative of wireless connection states of the sink devices; and a transmitting portion for transmitting a reproduction control state of the sink device to the source device, wherein the reproducing portion executes a reproduction control in accordance with the state information about other sink devices received by the device information receiving portion, and the transmitting portion transmits information indicating the reproduction control state to the source device.