发明名称 |
VERFAHREN UND VORRICHTUNG ZUR KOMPRIMIERUNG UND/ODER ÜBERTRAGUNG UND/ODER DEKOMPRIMIERUNG EINES DIGITALEN SIGNALS |
摘要 |
A method is described for compressing and/or transporting and/or decompressing a digital signal. The most significant bits of a sample of the digital signal are compressed and transported as a compressed transport sample. Methods are used to improve the compression and transport as hybrid DPCM and a dynamic shift of clip range of prediction errors. For every sample, not only a compressed transport sample but also a residual transport sample is transmitted. The residual transport sample is either equal to the least significant bits of the sample or equal to a substitution value which is a function of the clipping error from the compression of the most significant bits of the said sample. Apparatuses are described for compression and/or transport and/or decompression of a digitised television IF signal according to the method. <IMAGE> |
申请公布号 |
AT374458(T) |
申请公布日期 |
2007.10.15 |
申请号 |
AT19990870108T |
申请日期 |
1999.05.21 |
申请人 |
SCIENTIFIC-ATLANTA EUROPE |
发明人 |
DE LAMEILLEURE, JAN |
分类号 |
H03M7/00;G06T9/00;H03M7/30;H03M7/36;H04N7/26 |
主分类号 |
H03M7/00 |
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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