发明名称 |
Demultiplexer for a digital video receiver |
摘要 |
<p>The present invention relates to the demultiplexing of a digital data stream in a receiver so as to retain only those parts of the digital data stream required by the receiver. Such demultiplexing is particularly useful when applied to a receiver circuit in a television system having a digital set-top-box. A memory in the receiver stores packet identifiers of data packets required by the receiver, which are stored in the memory under the control of a first control circuit. A second control circuit extracts packet identifiers from incoming data packets in an input digital data stream. A third control circuit receives the extracted packet identifier and determines whether this matches one of the packet identifiers stored in the memory. A match signal is set by the third control circuit to the second control circuit responsive to a match. The second control circuit demultiplexes the input data packet responsive to the match signal. <IMAGE></p> |
申请公布号 |
EP0933927(A1) |
申请公布日期 |
1999.08.04 |
申请号 |
EP19990300684 |
申请日期 |
1999.01.29 |
申请人 |
STMICROELECTRONICS LIMITED |
发明人 |
MACCORMACK, ANDREW;GURNEY, HOWARD;ROBBINS, WILLIAM;ROVATI, FABRIZIO |
分类号 |
H04N5/00;(IPC1-7):H04N5/00 |
主分类号 |
H04N5/00 |
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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