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Data decoding method

A decoding method and data technology, applied in the field of data decoding, can solve problems such as error-prone, cumbersome process, etc.

Active Publication Date: 2020-07-07
SHANGHAI CAMBRICON INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, when Huffman coding determines the coded value of each symbol, it must determine the value of each branch on the path from the leaf node where the symbol is located to the root node. The process of determining the coded value of each symbol by this method is cumbersome and error-prone

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Embodiment Construction

[0061] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0062] Such asfigure 1 As shown, it is a structural block diagram of a computing device 100 proposed in one of the embodiments of the present application, and the computing device includes a main computing unit 110 and a plurality of slave computing units 120 connected to the main computing unit. Wherein, the master operation unit 110 and each slave operation unit 120 are provided with an encoding circuit 130 . Specifically, the master computing unit is used to perform pre-processing on input data, and transmit data with multiple slave computing units. Specifically, the m...

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Abstract

The invention relates to the data decoding method, and the method comprises: firstly determining the coding code length of each symbol according to Huffman coding of each symbol, and then obtaining the coding value of each symbol in a mode of adding 1 or adding 1 to supplement mantissa 0 based on the coding code length, i.e., obtaining the corresponding relation between each symbol and the codingvalue; and finally, decoding each coded value in the to-be-decoded data by using the relationship between each symbol and the coded value. According to the method, the coded value of each symbol is obtained by adding 1 or adding 1 to supplement mantissa 0, the process of determining the coded value corresponding to the symbol has a regular pattern, the operation is simple, and the error rate is low.

Description

technical field [0001] The present application relates to the field of computer technology, in particular to a data decoding method. Background technique [0002] Huffman coding is a variable word length coding, which constructs the codeword with the shortest average non-prefix length according to the occurrence probability of characters. The usual practice of Huffman coding is to sort according to the frequency of occurrence of symbols in the data. Each time, two groups of merge branches with the smallest probability are selected. The characters after the merge are counted as one group, and a Huffman tree is constructed. All characters are leaf nodes. , it is agreed that from the root node to the left is 0 and to the right is 1, and the bits on the path to the leaf node together form the Huffman code of the character. [0003] However, when Huffman coding determines the encoding value of each symbol, it must determine the value of each branch on the path from the leaf node...

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Application Information

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IPC IPC(8): H03M7/40
CPCH03M7/40
Inventor 不公告发明人
Owner SHANGHAI CAMBRICON INFORMATION TECH CO LTD