Circuit, coder and device for parallel BCH coding

Abstract

A circuit used on parallel BCH coding is prepared as serial-connecting multiple operation circuit, feedback unit circuit and data output unit circuit as well as utilizing flow line mode to carry out BCH coding on input-parallel data for making said circuit have great generality.

Description

technical field [0001] The invention relates to the technical field of error correction coding for data, in particular to a parallel BCH coding circuit, coder and device. Background technique [0002] The BCH code is a kind of error correction code, which is mainly used in the error control of the digital system. BCH codes have very important applications in data transmission processes such as communication, storage, and information transfer. There are two ways to BCH encode data, one is serial encoding, and the other is parallel encoding. [0003] Figure 1 shows the structure of the serial BCH encoding circuit. The structure of the serial BCH encoding circuit is relatively simple, and the input / output data of the circuit are all in a serial manner. Among them, g i (i=1, 2, . . . , n-k-1) are preset parameters, and D represents a register. When BCH encoding is performed on data in a serial manner, if k bits of data need to be BCH encoded and the check code is m bits, th...

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Problems solved by technology

However, the structure of the parallel BCH encoding circuit is very different from that of the serial BCH encoding circuit

At present, although there are some schemes about parallel BCH encoding circuits, the algorithms of these schemes are very complicated, and the structure of the circuit is also very complicated

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