Manchester decoding device capable of carrying out error correction and method thereof

Abstract

The invention discloses a Manchester decoding device capable of carrying out error correction and a method thereof. The device comprises a clock frequency divider module, a multipoint sampling module, a jump edge detection module and a decoding module. The clock frequency divider module carries out frequency division processing on a clock signal of an input apparatus and outputs the clock signal after the frequency division processing to the multipoint sampling module. The multipoint sampling module carries out multi-point sampling on a Manchester code element and outputs a sampling result to the decoding module. The jump edge detection module detects a level jump edge of each input Manchester code element and the level jump edge is taken as a reference signal of the multipoint sampling module. The decoding module carries out decoding according to a sampling result of the multipoint sampling module. A traditional Manchester decoding device based on a single point sampling method has the following technical problems that an error correction capability is poor; working is not stable; the device is easy to be interfered and reliability is not high. By using the device and the method of the invention, the above problems are well solved.

Description

technical field [0001] The invention relates to the technical field of electronic circuits, in particular to an error-correctable Manchester decoding device and method based on a multi-point sampling method. Background technique [0002] Manchester code, also known as digital two-way code, is a clock self-synchronizing coding technology. Its advantage is that the coded data contains rich clock information. It is the original code that uses two new binary codes with different phases to replace each binary code. It is characterized by the use of two levels, which can ensure that a level conversion occurs at the exact middle time of each symbol. , which is very beneficial for the receiving end to extract the bit synchronization signal. as attached figure 1 As shown, the Manchester code takes the code unit as a unit, including a multi-bit Manchester code. The data bit encoding specification in the Manchester code is: a "1" code should be "high" in the first half of the code, a...

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Problems solved by technology

[0004] In view of this, the purpose of the present invention is to provide a kind of error-correctable Manchester decoding device and method thereof, solve the problem that the traditional Manchester decoding device based on single-point sampling method has weak error correction capability, unstable work, extremely susceptible to interference, reliable Minor technical issues

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