发明授权
US08102836B2 Synchronization of a split audio, video, or other data stream with separate sinks
有权
分离的音频,视频或其他数据流与单独的接收器的同步
- 专利标题: Synchronization of a split audio, video, or other data stream with separate sinks
- 专利标题(中): 分离的音频,视频或其他数据流与单独的接收器的同步
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申请号: US11752880申请日: 2007-05-23
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公开(公告)号: US08102836B2公开(公告)日: 2012-01-24
- 发明人: Sven Jerlhagen , Mattias Per Agren , Sathiyanarayanan Krithikaivasan
- 申请人: Sven Jerlhagen , Mattias Per Agren , Sathiyanarayanan Krithikaivasan
- 申请人地址: US CA Irvine
- 专利权人: Broadcom Corporation
- 当前专利权人: Broadcom Corporation
- 当前专利权人地址: US CA Irvine
- 代理机构: Fiala & Weaver P.L.L.C.
- 主分类号: H04J3/06
- IPC分类号: H04J3/06
摘要:
Methods, systems, and apparatuses for synchronizing one or more output/sink devices are described. In each sink device, a communication packet is received from a source device. The communication packet includes data and a source clock timestamp. A local clock signal is generated that is synchronized with a source clock signal of the source device. The data is decoded using a codec. At least one delay and the source clock timestamp are subtracted from a current value of the local clock signal to generate a local latency value. A difference between a desired latency value and the local latency value is determined. A rate of a clock signal of the codec is adjusted according to the determined difference. Because each sink device adjusts its latency to a common desired latency value, the sink devices are thereby synchronized.