Entropy coding system
专利汇可以提供Entropy coding system专利检索，专利查询，专利分析的服务。并且PURPOSE: To attain the satisfactory compression of data by dividing signal strings larger than a ternary value into two groups by giving binary discrimination to zero and non-zero phenomena having different statistic distributions to perform the compression of data with both groups after run-length coding and giving the Huffman coding to the non-zero phenomenon owing to presence of several types of codes.
CONSTITUTION: A DPCM circuit 1 gives predictive coding to picture signals and a zero/non-zero discriminating circuit 2 discriminates a zero phenomenon R
0 and a non-zero phenomenon R
1 to deliver them to a differentiating circuit 3 in the form of the binary information. At the same time, the non-zero information showing the point where the non-zero phenomenon starts to a multiplexing circuit 8. The circuit 3 supplies the pulse showing the boundary between levels 1 and 0 to a run-length detector 4, a zero run-length coder 5 and a non-zero run-length coder 6 respectively. while the error signal undergoes the Huffman coding for each code through a Huffman coder 7 and supplied to the circuit 8. The circuit 8 cuts the Huffman codes of the zero phenomenon according to the non-zero phenomenon information. Then the zero run-length code is delivered as it is and the non-zero run-length code is delivered with the Huffman codes accordant with each multi-value code added successively after the non-zero run-length code respectively.
COPYRIGHT: (C)1987,JPO&Japio，下面是Entropy coding system专利的具体信息内容。
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