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    Data coding for data storage systems
    1.
    发明授权
    Data coding for data storage systems 失效
    数据存储系统的数据编码

    公开(公告)号：US06812867B2

    公开(公告)日：2004-11-02

    申请号：US10455696

    申请日：2003-06-05

    申请人： Roy D Cideciyan ,  Ajay Dholakia ,  Evangelos S Eleftheriou ,  Richard L Galbraith ,  Thomas Mittelholzer ,  Travis R Oenning ,  David J Stanek

    发明人： Roy D Cideciyan ,  Ajay Dholakia ,  Evangelos S Eleftheriou ,  Richard L Galbraith ,  Thomas Mittelholzer ,  Travis R Oenning ,  David J Stanek

    IPC分类号： H03M700

    CPC分类号： H03M7/46 ,  G11B20/1426 ,  G11B2020/1446 ,  H03M5/145

    摘要： Described is a modulation encoder having a finite state machine for converting input bits into output bits in which the number of alternating output bits is limited to j+1 where j is a predefined maximum number of transitions in the output bits, and in which the number of like output bits is limited to k+1 where k is a predefined maximum number of non-transitions in the output bits. The modulation encoder may be employed in encoding apparatus for converting an input bit stream into an output bit stream. Such apparatus may comprise partitioning logic for partitioning the input bit stream into a first group of bits and a second group of bits. A plurality of the aforementioned modulation encoders may be connected to the partitioning logic for converting the first group of bits into coded output bits. Combining logic may be connected to the or each modulation encoder and the partitioning logic for combining the coded output bits and the second group of bits to generate the output bit stream. Counterpart modulation decoders and decoding apparatus are also described.

    摘要翻译： 描述了一种具有有限状态机的调制编码器，用于将输入比特转换成输出比特，其中交替输出比特的数量被限制为j + 1，其中j是输出比特中的预定义的最大转移数， 类似的输出位被限制为k + 1，其中k是输出位中的非转换的预定最大数量。 调制编码器可以用于将输入比特流转换成输出比特流的编码装置。 这种装置可以包括用于将输入比特流分成第一组比特和第二组比特的分区逻辑。 多个上述调制编码器可以连接到用于将第一组位转换为编码输出位的分割逻辑。 组合逻辑可以连接到或每个调制编码器和用于组合编码的输出位和第二组位的分区逻辑以产生输出比特流。 还描述了对位调制解码器和解码装置。