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Double-bit-check coding and decoding method

A decoding method and encoding technology, applied in the field of ensuring the correct transmission of data, can solve the problems of high cost and high cost of first-level transmission

Inactive Publication Date: 2013-05-15
齐凯
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, in key occasions where error-free transmission is required, high-cost dual-group equipment will be used for dual-channel backup transmission. Therefore, although the requirement of high accuracy can be achieved, it will lead to the cost of primary transmission and reception. relatively high problem

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  • Double-bit-check coding and decoding method

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Embodiment Construction

[0016] Hereinafter, with reference to the accompanying drawings, embodiments of the double-bit check encoding and decoding method according to the present invention will be described in detail.

[0017] figure 1 It is a flow chart for explaining the encoding and decoding methods of double checksum involved in the present invention. like figure 1 As shown, the encoding and decoding method of the double-digit verification involved in the present invention includes the following steps: data input step 1, double-digit encoding step 2, data transmission step 3, double-digit decoding step 4, verification error retransmission step 5, Verify step 6 and data output step 7.

[0018] First, in the data input step 1, the original data is received by the transmitting unit having the encoding function, and in the double-bit encoding step 2, the transmitting unit encodes the received original data according to the double-bit check encoding method in this embodiment Double coded. Then, in...

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Abstract

The invention provides a double-bit-check coding and decoding method, can detect source data error generated due to interference, and effectively guarantees the correct transmission of data so as to solve the error code problem in data transmission with low cost. The method comprises a coding process, a decoding process and a checking process. In the coding process, when a frame of raw data is received, bit by bit logic negation is carried out to each data bit of the frame, the logic negations of the obtained raw data bits are the check bits of raw data bits, and coding is carried out to the raw data by adopting the mode of inserting each check bit of the raw data bits behind each data bit of the frame data. In the decoding process, decoding is carried out to receive coded data, and decoded raw data bits and decoded check data bits are respectively obtained. In the checking process, whether the decoding check bits are the logic negations of decoded raw data is judged, and when the decoding check bits are the logic negations of decoded raw data, the raw data are judged to be correctly transmitted.

Description

technical field [0001] The invention relates to a method for ensuring correct transmission of data, in particular to a parity check method for double-bit encoding and decoding for communication transmission. Background technique [0002] Generally speaking, the existing original data encoding and decoding method believes that as long as the same encoding method is used in the four aspects of connection encoding, database encoding, result set encoding and database server encoding, there will be no garbled characters question. However, in the process of implementing the actual transmission of the protocol, the original data unit is easily disturbed by the external environment, resulting in data loss or error. In order to solve the problem of data errors, based on the original protocol, it is currently used to monitor whether the transmission bearer is normal, and to extend the data transmission time as needed to reduce the bit error rate of transmission. In addition, in key ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
Inventor 齐凯
Owner 齐凯
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