发明名称 |
Method of video buffer synchronization |
摘要 |
<p>A method is provided for synchronizing video data buffers in a system containing a variable rate transmission channel, including: an encoder for encoding input data into a compressed data bitstream; an encoder buffer for storing the compressed data bitstream; a decoder buffer for receiving the compressed data bitstream, with the sum of the encoder buffer delay and the decoder buffer delay is constant; and a decoder for receiving and decoding the compressed data bitstream. The instantaneous encoder buffer delay is used to generate a control signal; the control signal is inserted into the compressed data bitstream following the encoder buffer. In an exemplary embodiment, each of the encoder and decoder performs encoding and decoding operations, respectively, in the Motion Picture Experts Group (MPEG) standard, using the VBV_DLY parameter of the MPEG standard as the control signal.</p> |
申请公布号 |
EP0708567(B1) |
申请公布日期 |
2009.12.23 |
申请号 |
EP19950307182 |
申请日期 |
1995.10.11 |
申请人 |
AT&T CORP. |
发明人 |
ACER, MICHAEL;SCHEUTZOW, MICHAEL;BOTSFORD, NELSON, III |
分类号 |
H04N7/56;H04N7/24;H04N7/60;H04N7/62;H04N19/00;H04N21/236;H04N21/43;H04N21/434;H04N21/44;H04N21/6336 |
主分类号 |
H04N7/56 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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