发明名称 |
Decoder for audio signals belonging to compressed and coded audiovisual streams |
摘要 |
<p>A decoder for audio signals belonging to audio-visual streams coded in accordance with standard ISO/IEC 11172 is provided. Said decoder comprises a presentation unit (UP) which is controlled by a first and a second clock signal, depending on the desired sampling rate, and is associated to means (SAV) managing audio-video synchronisation. The latter means start the presentation of output data by comparing a first timing signal (SCR), representative of a system clock signal, and a second timing signal (PTS), representative of a correct instant of data presentation, independently generate the two clock signals (CLK24, CLK22) and correct the signal corresponding to the desired sampling rate by means of a feedback circuit which comprises a digital filter (FD). <IMAGE></p> |
申请公布号 |
EP0719053(A2) |
申请公布日期 |
1996.06.26 |
申请号 |
EP19950120353 |
申请日期 |
1995.12.21 |
申请人 |
SIP SOCIETA ITALIANA PER L'ESERCIZIO DELLE TELECOMUNICAZIONI P.A. |
发明人 |
FINOTELLO, ANDREA;PAOLINI, MAURIZIO |
分类号 |
H04N7/26;G10L19/00;G10L19/02;H03M7/30;H04N7/24;H04N7/52;(IPC1-7):H04N7/52 |
主分类号 |
H04N7/26 |
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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