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Blocking entropy encoding system

阅读:935发布:2022-10-15

专利汇可以提供Blocking entropy encoding system专利检索,专利查询,专利分析的服务。并且PURPOSE: To shorten a code length of a peculiar event (0) in comparison with the conventional and to enable a more effective data compression by run length encoding on the binarization discriminated peculiar event (0) and Huffman encoding on a non- peculiar event (signal except for 0).
CONSTITUTION: A zero and non-zero signal of a prediction error output of an output of a DPCM circuit 1 is discriminated in a discriminating circuit 6 and when the output is zero, a signal of '0' level is inputted and when the output is non-zero, a signal of '1' level is inputted to a selector 9 and a zero run length detector 7. In the detector 7, effective and invalid block information from an effective and invalid block discriminator 2 is also inputted, the run length of the zero in the effective block is detected and inputted to a zero run length encoder 8. In the zero run length encoder 8, the run length of the zero is encoded and inputted to the selector 9. In the selector 9, according to zero and non-zero discriminating information, in the case of the effective block being zero, the run length code is outputted and in the case of the non-zero, the Huffman code is outputted and a code of '1' of 1 bit is applied every effective block through a multiplexing circuit 4 and the selector 5 and zero of the effective block is run length coded and on the non-zero, the Huffman coded signal is outputted.
COPYRIGHT: (C)1987,JPO&Japio,下面是Blocking entropy encoding system专利的具体信息内容。

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