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热词
    • 3. 发明授权
    • Error correcting and detecting system
    • 错误校正和检测系统
    • US4631725A
    • 1986-12-23
    • US686815
    • 1984-12-27
    • Moriyuki TakamuraShigeru MukasaTakashi Ibi
    • Moriyuki TakamuraShigeru MukasaTakashi Ibi
    • G06F11/10H03M13/00H03M13/19
    • G06F11/1028H03M13/19
    • An error correcting and detecting system using a parity check H-matrix divided into a plurality of block vectors each including four or three column vectors each having eight elements. In the H-matrix, (i) there are no all "0" vectors; (ii) all column vectors are different from each other; (iii) 8 column vectors each having only one "1" is included therein, (iv) each column vector has an odd number of "1's"; (v) the modulo-2 sum of any three column vectors within any block never equals any column vectors of the H-matrix; (vi) the modulo-2 sum of four column vectors within any block never equals an all "0" vector; and (vii) the modulo-2 sum of eight column vectors within any two blocks never equals an all "0" vector.
    • 使用奇偶校验H矩阵的纠错和检测系统,该奇偶校验H矩阵被分成多个块向量,每个块向量包括每个具有八个元素的四个或三个列向量。 在H矩阵中,(i)没有全部“0”向量; (ii)所有列向量彼此不同; (iii)其中包括每个仅具有一个“1”的8个列向量,(iv)每个列向量具有奇数个“1”; (v)任何块中任何三列向量的模-2之和不等于H矩阵的任何列向量; (vi)任何块内的四列向量的模-2之和不等于全“0”向量; 和(vii)任何两个块中的八个列向量的模-2之和从不等于全“0”向量。