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Coding and decoding method and encoding and decoding device

A codec method and codec technology, applied in the direction of adjusting transmission mode, digital transmission system, preventing errors, etc., can solve the problem of low coding efficiency

Active Publication Date: 2020-01-31
SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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  • Application Information

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Problems solved by technology

Under this coding rule, the coding efficiency is not high

Method used

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  • Coding and decoding method and encoding and decoding device
  • Coding and decoding method and encoding and decoding device
  • Coding and decoding method and encoding and decoding device

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Embodiment Construction

[0050]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0051] In the prior art, because the data transmission mode of the Ethernet has an influence of uncertain delay on constant rate data transmission, it is not suitable for some constant rate data transmission.

[0052] Therefore, the present invention discloses a codec method and a codec, which uses the polarity of 10B coded data to transmit additional data, and realizes the correct sampling of the additional transmission data based on the K28.5 code word.

[00...

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Abstract

The invention discloses an encoding and decoding method and an encoding and decoding device. The method comprises the following steps: encoding acquired unencoded 8B code pattern data; obtaining firstcoded 10B code pattern data and second coded 10B code pattern data; accumulating the polarity information of the first coding 10B code pattern, the polarity information of the second coding 10B codepattern and the polarity information of the last time; obtaining polarity information data, filling the polarity information data according to the position information of the K28.5 code words; and selecting the coded 10B code pattern data meeting the sending requirement after polarity control, identifying an additional data bit and a compensation bit represented by polarity information in the coded 10B code pattern data meeting the sending requirement, and outputting the additional data bit 1B code pattern data based on the additional data bit and the compensation bit. By means of the scheme,the polarity of the 10B coded data is used for transmitting the additional data, correct sampling of the additional transmission data is achieved based on the K28.5 code words, and the purpose of improving the coding efficiency of original 8B / 10B is achieved.

Description

technical field [0001] The present invention relates to the technical field of data transmission, and more specifically, to a codec method and a codec. Background technique [0002] 8b / 10b is also called 8-bit / 10-bit, and 8b / 10b encoding has become the encoding mechanism adopted by many high-speed serial buses. One of the characteristics of 8b / 10b encoding is to ensure DC balance. The 8b / 10b encoding method is adopted. When the encoding converts 8-bit data into 10-bit codewords through a mapping mechanism, it balances the number of 0 and 1 in the bit stream. Through 8b / 10b encoding, the correct transmission of data in a specific channel. [0003] Under the condition of not changing the encoding method, if there is a need to increase the transmission content in the Ethernet environment, the frame interval of the Ethernet is used to transmit data or a normal Ethernet frame is formed independently, and the Ethernet bandwidth is shared for transmission. [0004] However, in or...

Claims

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Application Information

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IPC IPC(8): H04L1/00
CPCH04L1/0008
Inventor 郭巍郝锐梅国强
Owner SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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