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汉明码是一种实用的编码方法,它能检出一位错码的位置,即能纠正错码,在汉明码的检错纠错中,通常用奇偶校验树对错码定位、并用译码电路产生纠错控制信号。本文讨论的方法是用串行法分别检测汉明码中的各个校验组,用各校验组的检测结果对错码定位,并将此检测结果和代表码位位置的计数器内容经比较器产生纠错控制信号,完成纠错操作。此方法可以有较高的工作速度,还有减小设备量和便于用中规模器件安现的优点。
Hamming code is a practical coding method, it can detect the location of an error code, that is, to correct the error code, error detection error correction Hamming code, the parity code is usually used to locate the wrong parity tree and use the translation The code circuit generates the error correction control signal. The method discussed in this paper is to detect each check group in Hamming code by serial method, locate the wrong code with the test results of each check group, and generate the result of the counter and the contents of the counter representing the position of the code bits through the comparator Error correction control signal to complete the error correction operation. This method can have a higher working speed, as well as the advantages of reducing the amount of equipment and facilitating the use of medium scale devices.