发明名称 |
Method of analysing a compressed signal for the presence or absence of information content |
摘要 |
Compressed signals contain amplitude data (for example, scale factors in an MPEG frame) which can be examined to enable a decision to be taken on whether the signal contains information or not (e.g. silence in the case of audio or no image in the case of video).
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申请公布号 |
US2004133420(A1) |
申请公布日期 |
2004.07.08 |
申请号 |
US20030467545 |
申请日期 |
2003.12.15 |
申请人 |
FERRIS GAVIN ROBERT;WOODWARD MICHAEL VINCENT |
发明人 |
FERRIS GAVIN ROBERT;WOODWARD MICHAEL VINCENT |
分类号 |
G10L11/02;G10L25/78;(IPC1-7):G10L11/06 |
主分类号 |
G10L11/02 |
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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