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公开(公告)号：JPWO2011122456A1
公开(公告)日：2013-07-08
申请号：JP2012508253
申请日：2011-03-25
申请人： シャープ株式会社
发明人： 江口 洋一 , 洋一 江口 , 啓介 辻 , 啓介 辻 , 良介 大前 , 良介 大前 , 江藤 正幸 , 正幸 江藤 , 誠司 今西 , 誠司 今西 , 加藤 伸一 , 伸一 加藤 , 木下 拓也 , 拓也 木下
CPC分类号： H04N21/43637 , H04N5/4401 , H04N5/602 , H04N21/4325 , H04N21/43615 , H04N21/439 , H04N21/44227 , H04N21/44231 , H04R5/04 , H04R2420/07
摘要： ソース機器からマルチキャスト無線伝送により伝送されたAVデータを再生するに際し、同じソース機器からのAVデータを再生する他のシンク機器の無線接続状態に応じた再生制御を行うシンク機器と、シンク機器の無線接続状態と再生制御状態を把握可能なソース機器と、これらのシンク機器とソース機器を備えた無線伝送システムを提供する。シンク機器2aは、ソース機器1からマルチキャスト無線伝送されたAVデータを再生するに当たって、他のシンク機器の無線接続状態を示す状態情報を取得し、この状態情報に応じて自己のAVデータの再生制御を調整する。ソース機器1は、各シンク機器の無線接続状態と再生制御の状態の情報を取得し、これらの情報からAVデータの送信を停止したり、再開したりする。
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3.发明专利
公开(公告)号：JP5330039B2
公开(公告)日：2013-10-30
申请号：JP2009063207
申请日：2009-03-16
申请人： シャープ株式会社
IPC分类号： H04N21/436 , H04L12/46 , H04N7/173
CPC分类号： H04N21/64753 , H04L12/4625 , H04N21/43635 , H04N21/43637 , H04N21/64746
摘要： A wireless transmission system is provided that can minimize the control command transmission amount by operating a plurality of sink devices in conjunction with each other with respect to each group when performing a wireless AV transmission. The wireless transmission system includes: a bridge device (1) which wireless-transmits an AV content; and a plurality of wireless sink devices (5, 6) which reproduce the wireless-transmitted AV content. The bridge device (1) has a group identification table which stores a group identifier for identifying a group formed by the wireless sink device (5, 6). The bridge device (1) adds a group identifier extracted from the group identification table to a control command for controlling the sink devices (5, 6) and wireless-transmits the control command having the group identifier. The wireless sink devices (5, 6) receive a control command wireless-transmitted from the bridge device (1) if a corresponding group identifier is added to the control command.
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公开(公告)号：JP5044672B2
公开(公告)日：2012-10-10
申请号：JP2010069056
申请日：2010-03-25
申请人： シャープ株式会社
IPC分类号： H04N7/173 , H04N21/41 , H04N21/442 , H04N21/61 , H04N21/6405
摘要： PROBLEM TO BE SOLVED: To provide a sink device that determines radio connection states of other sink devices reproducing AV data from the same source device, in reproducing the AV data transmitted by multicast radio transmission from the source device, and to provide a source device transmitting AV data to the sink device. SOLUTION: The sink device 2a includes an AV reception section for receiving the AV data transmitted by multicast radio transmission from the source device 1, a reproduction section for extracting and reproducing the AV data transmitted to the sink device 2a among the received AV data, and a device information reception section for receiving part of or whole sink device information managed in the source device 1. The sink device information is formed by associating identification information for identifying a plurality of sink devices 2a, 2b, and the like with state information indicating the radio connection state of the sink devices 2a, 2b, and the like, and is transmitted from the source device 1 according to a request from the sink device. COPYRIGHT: (C)2010,JPO&INPIT
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公开(公告)号：JP5501444B2
公开(公告)日：2014-05-21
申请号：JP2012508253
申请日：2011-03-25
申请人： シャープ株式会社
IPC分类号： H04N21/436 , H04R3/00
CPC分类号： H04N21/43637 , H04N5/4401 , H04N5/602 , H04N21/4325 , H04N21/43615 , H04N21/439 , H04N21/44227 , H04N21/44231 , H04R5/04 , H04R2420/07
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公开(公告)号：JP5091972B2
公开(公告)日：2012-12-05
申请号：JP2010069054
申请日：2010-03-25
申请人： シャープ株式会社
IPC分类号： H04N7/173 , H04L29/08 , H04N5/44 , H04N21/436 , H04N21/442 , H04W4/06 , H04W84/12
摘要： PROBLEM TO BE SOLVED: To provide source device allowing a sink device to transmit sink device information for discriminating radio connection states of other sink devices reproducing AV data from the same source device, in reproducing the AV data transmitted by multicast radio transmission from the source device. SOLUTION: The source device 1 includes an AV transmission section for transmitting AV data by multicast radio transmission, a connection state determination section for determining a radio connection state of each sink device, based on the result of detecting the reception states of the sink devices 2a, 2b, and the like or operation states, a device information storage section for storing sink device information of each sink device, and a device information transmission section for transmitting the sink device information by radio. In this case, the sink device information is formed by associating identification information for identifying a plurality of sink devices 2a, 2b, and the like including the sink device 2a with state information indicating the radio connection states of the sink devices 2a, 2b, and the like. COPYRIGHT: (C)2010,JPO&INPIT
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公开(公告)号：JP5044671B2
公开(公告)日：2012-10-10
申请号：JP2010069053
申请日：2010-03-25
申请人： シャープ株式会社
IPC分类号： H04N7/173 , H04L29/08 , H04N21/4363 , H04N21/442
摘要： PROBLEM TO BE SOLVED: To provide a source device allowing a sink device to transmit sink device information for determining radio connection states of other sink devices reproducing AV data from the same source device, in reproducing the AV data transmitted by multicast radio transmission from the source device. SOLUTION: The source device 1 includes an AV transmission section for transmitting AV data by multicast radio transmission, a connection state determination section for determining a radio connection state through periodic radio data communication with each of the sink devices 2a, 2b, and the like, a device information storage section for storing sink device information of each sink device, and a device information transmission section for transmitting the sink device information by radio. In this case, the sink device information is formed by associating identification information for identifying a plurality of sink devices 2a, 2b, and the like including the sink device 2a with state information indicating the radio connection states of the sink devices 2a, 2b, and the like. COPYRIGHT: (C)2010,JPO&INPIT
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