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    MEMORY CONTROLLER AND DECODING METHOD
    64.
    发明申请
    MEMORY CONTROLLER AND DECODING METHOD 审中-公开
    存储控制器和解码方法

    公开(公告)号：US20160080004A1

    公开(公告)日：2016-03-17

    申请号：US14656037

    申请日：2015-03-12

    申请人： Kabushiki Kaisha Toshiba

    发明人： Ryo YAMAKI ,  Daisuke Fujiwara ,  Daiki Watanabe

    IPC分类号： H03M13/45 ,  G11C29/52 ,  G06F11/10

    CPC分类号： H03M13/458 ,  G06F11/1012 ,  G11C2029/0411 ,  H03M13/09 ,  H03M13/1515 ,  H03M13/152 ,  H03M13/2909 ,  H03M13/2918 ,  H03M13/2927 ,  H03M13/3707 ,  H03M13/3746 ,  H03M13/3784

    摘要： According to an embodiment, a memory controller controls a non-volatile memory that stores a codeword. The memory controller includes a SISO decoder that performs SISO decoding based on the codeword read out as a set of soft decision values from the non-volatile memory, and outputs a posteriori information; a hard decision processor that performs hard decision on the a posteriori information and calculates a set of hard decision values of the codeword; and a HIHO decoder that performs HIHO decoding by using the hard decision values.

    摘要翻译： 根据实施例，存储器控制器控制存储码字的非易失性存储器。 存储器控制器包括SISO解码器，其基于从非易失性存储器读出作为一组软判决值的码字执行SISO解码，并输出后验信息; 执行对后验信息的硬判决并计算码字的硬判定值的硬决策处理器; 以及通过使用硬判决值来执行HIHO解码的HIHO解码器。

    Averaging signals to improve signal interpretation
    68.
    发明授权
    Averaging signals to improve signal interpretation 有权
    平均信号以改善信号解读

    公开(公告)号：US08359527B1

    公开(公告)日：2013-01-22

    申请号：US13445712

    申请日：2012-04-12

    申请人： Hongxin Song ,  Zining Wu

    发明人： Hongxin Song ,  Zining Wu

    IPC分类号： H03M13/03

    CPC分类号： H03M13/3738 ,  G11B20/10027 ,  G11B20/10037 ,  G11B20/10046 ,  G11B20/10175 ,  G11B20/10277 ,  G11B20/10305 ,  G11B20/1037 ,  G11B20/10527 ,  G11B20/18 ,  G11B20/1816 ,  G11B20/1876 ,  G11B20/24 ,  G11B2020/10694 ,  G11B2020/183 ,  G11B2220/2516 ,  H03M5/145 ,  H03M13/3784 ,  H03M13/4138

    摘要： Systems and techniques to interpret signals on a noisy channel. A described system includes a filter, buffer, detector, controller, and averager. The buffer can store a group of signals, including a filtered digital signal and previous signal(s). The controller can determine whether first discrete values are adequately indicated and initiate a retry mode when the first discrete values are not adequately indicated. The averager can produce a new signal, in the retry mode, based on an average of at least a portion of the group of signals. The detector can interpret the new signal as second discrete values. The controller can determine whether the second discrete values are adequately indicated based on a measurement of differences between hard decisions indicated by the new signal and hard decisions indicated by the filtered digital signal. The controller can selectively exclude a signal of the group of signals from the average.

    摘要翻译： 在嘈杂频道上解码信号的系统和技术。 所描述的系统包括滤波器，缓冲器，检测器，控制器和平均器。 缓冲器可以存储一组信号，包括经滤波的数字信号和先前的信号。 控制器可以确定第一离散值是否被充分地指示，并且当第一个离散值没有充分地指示时，控制器可以启动重试模式。 平均器可以在重试模式下基于该组信号的至少一部分的平均值产生新的信号。 检测器可以将新信号解释为第二离散值。 控制器可以基于由新信号指示的硬判决与经滤波的数字信号指示的硬判决之间的差异的测量来确定第二离散值是否被充分地指示。 控制器可以从平均值中选择性地排除信号组的信号。

    Averaging signals to improve signal interpretation
    69.
    发明授权
    Averaging signals to improve signal interpretation 有权
    平均信号以改善信号解读

    公开(公告)号：US08161361B1

    公开(公告)日：2012-04-17

    申请号：US10600419

    申请日：2003-06-20

    申请人： Hongxin Song ,  Zining Wu

    发明人： Hongxin Song ,  Zining Wu

    IPC分类号： H03M13/03

    CPC分类号： H03M13/3738 ,  G11B20/10027 ,  G11B20/10037 ,  G11B20/10046 ,  G11B20/10175 ,  G11B20/10277 ,  G11B20/10305 ,  G11B20/1037 ,  G11B20/10527 ,  G11B20/18 ,  G11B20/1816 ,  G11B20/1876 ,  G11B20/24 ,  G11B2020/10694 ,  G11B2020/183 ,  G11B2220/2516 ,  H03M5/145 ,  H03M13/3784 ,  H03M13/4138

    摘要： Systems and techniques to interpret signals on a noisy channel. In general, in one implementation, the technique includes: interpreting an input signal as discrete values, and in response to an inadequate signal, averaging multiple signals to improve interpretation of the input signal. The input signal can be a read signal from a storage medium, such as those found in disk drives. A read channel can include a buffer and an averaging circuit capable of different signal averaging approaches in a retry mode, including making signal averaging decisions based on a signal quality measure. Buffering read signals can be done in alternative locations in the read channel and can involve buffering of many prior read signals and/or buffering of an averaged read signal.

    摘要翻译： 在嘈杂频道上解码信号的系统和技术。 通常，在一个实现中，该技术包括：将输入信号解释为离散值，并且响应于不足的信号，对多个信号进行平均以改善输入信号的解释。 输入信号可以是来自存储介质的读取信号，例如在磁盘驱动器中发现的信号。 读通道可以包括缓冲器和能够在重试模式下具有不同信号平均方法的平均电路，包括基于信号质量测量进行信号平均判定。 缓冲读取信号可以在读通道中的替代位置进行，并且可以涉及缓冲许多先前的读取信号和/或缓冲平均的读取信号。