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1. 发明授权

US4604747A Error correcting and controlling system 失效
标题翻译：错误纠正和控制系统
公开(公告)号：US4604747A
公开(公告)日：1986-08-05
申请号：US609854
申请日：1984-05-14
申请人： Ken Onishi , Masayuki Ishida , Masakazu Shirozu , Toshikatsu Takedomi , Makoto Namekawa , Yukihiko Haikawa
发明人： Ken Onishi , Masayuki Ishida , Masakazu Shirozu , Toshikatsu Takedomi , Makoto Namekawa , Yukihiko Haikawa
IPC分类号： G11B20/18 , G06F11/10
CPC分类号： G11B20/1809 , G11B20/1876
摘要： An error correcting and controlling system forms syndromes S.sub.1 and S.sub.2 for each of a set of reproduced, sampled signal words and error correcting words P or Q and also forms a syndrome S.sub.i =S.sub.1 .sym.T.sup.i-7 S.sub.2 by using the result of a CRC check of the set of sampled signal words. An error position i is determined by three zero counters which respectively indicate S.sub.1 .noteq.0, S.sub.2 .noteq.0 and S.sub.i .noteq.0. Alternatively, the system may further include three counters for respectively counting errors developed in the set of sampled signal words, and the error correcting words P and Q, the errors being detected by a CRC check circuit. When any one of the counters counts an error and the remaining counters count no error with S.sub.1 .noteq.0, S.sub.2 .noteq.0 and S.sub.i .noteq.0, a control signal is generated to perform a concealing operation, such as a means value interpolation, etc.
摘要翻译：错误校正和控制系统为一组再现的采样信号字和纠错字P或Q中的每一个形成校正子S1和S2，并且还通过使用CRC的结果形成校正子Si = S1（+）Ti-7S2 检查采样信号集的集合。错误位置i由分别表示S1 NOTEQUAL 0，S2 NOTEQUAL 0和Si NOTEQUAL 0的三个零计数器确定。或者，系统还可以包括三个计数器，用于分别计数在采样信号字集合中产生的误差，并且误差校正字P和Q，由CRC校验电路检测的误差。当任何一个计数器计数一个错误，剩余的计数器计数没有错误与S1 NOTEQUAL 0，S2 NOTEQUAL 0和Si NOTEQUAL 0，产生一个控制信号执行隐藏操作，如平均值插值等。

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