存储器纠错技术的分析

Analysis of Error Correction Technique in Memory

半导体存储器系统存在比特差错。使用差错控制技术可以提高存储器可靠性。目前纠错技术广泛应用于存储器系统。纠错技术中使用了一个冗余码,该冗余码是数据比特通过一个函数运算得到的,该冗余码就是纠错码。如果数据中的某个比特发生错误,利用纠错码可以检测出该错误比特,并且可以对错误的比特进行纠正。

A semiconductor memory system is subject to errors. Error control techniques are used to enhance memory reliability. Now error correction techniques are commonly used in memory systems. These involve adding redundant bits that are a func- tion of the data bits to form an error correcting code. If a bit error occurs, the code will detect and, usually, correct the error.