Patent ID: 8613029
Filing Date: 2013-12-17
Classification: H04L,H04N

Abstract:
1. A wireless transmission system comprising: a content transmitting apparatus that wirelessly transmits AV contents including video and/or audio; and a plurality of sink devices that receive the wirelessly transmitted AV contents, at least one of the plurality of the sink devices being made up of a wireless sink device, wherein the content transmitting apparatus includes a group identification ID table that stores group identification ID for identifying a group made up of the plurality of the sink devices, a group identification ID adding portion that adds group identification ID extracted from the group identification ID table to a control command controlling the plurality of the sink devices, and a wireless transmitting portion that wirelessly transmits the control command with the group identification ID added, the wireless sink device is configured to receive a control command wirelessly transmitted from the content transmitting apparatus responsive to its own group identification ID being added to the control command, the content transmitting apparatus is made up of a wired source device and a relay device wired to the wired source device, and the relay device is wirelessly connected to the wireless sink device and mutually converts between different respective data formats a wired control command communicated with the wired source device and a wireless control command communicated with the wireless sink device, wherein the plurality of the sink devices making up the group includes a television apparatus and one or more audio devices, wherein if the relay device is wirelessly connected to the television apparatus and the television apparatus is wirelessly connected to the one or more audio devices, the group identification ID table is generated by an operation that the relay device assigns a group identification ID to the television apparatus when the television apparatus is powered on, and the television apparatus groups the audio devices based on device identification information unique to the audio devices and assigns the group identification ID to the grouped audio devices.