发明公开
EP1377962A1 METHOD OF ANALYSING A COMPRESSED SIGNAL FOR THE PRESENCE OR ABSENCE OF INFORMATION CONTENT
审中-公开
程序对压缩信号对信息内容的分析或存在缺失
- 专利标题: METHOD OF ANALYSING A COMPRESSED SIGNAL FOR THE PRESENCE OR ABSENCE OF INFORMATION CONTENT
- 专利标题(中): 程序对压缩信号对信息内容的分析或存在缺失
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申请号: EP02700419.1申请日: 2002-02-08
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公开(公告)号: EP1377962A1公开(公告)日: 2004-01-07
- 发明人: FERRIS, Gavin, Robert , WOODWARD, Michael, Vincent
- 申请人: Radioscape Limited
- 申请人地址: 2 Albany Terrace London NW1 4DS GB
- 专利权人: Radioscape Limited
- 当前专利权人: Radioscape Limited
- 当前专利权人地址: 2 Albany Terrace London NW1 4DS GB
- 代理机构: Langley, Peter James
- 优先权: GB0103242 20010209
- 国际公布: WO2002065450 20020822
- 主分类号: G10L11/02
- IPC分类号: G10L11/02 ; H04N7/24
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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