中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

46 records (took 0.017 seconds)

    Systems and methods for large sector dynamic format insertion
    26.
    发明授权
    Systems and methods for large sector dynamic format insertion 有权
    大型动态格式插入的系统和方法

    公开(公告)号：US08976475B1

    公开(公告)日：2015-03-10

    申请号：US14080946

    申请日：2013-11-15

    Applicant: LSI Corporation

    Inventor： Shu Li ,  Fan Zhang ,  Jun Xiao

    IPC: G11B5/09

    CPC classification number: G06F11/1469 ,  G06F17/30424 ,  G06F17/30581 ,  G11B5/09 ,  G11B20/1217 ,  G11B2020/1287

    Abstract: Systems and method relating generally to data processing, and more particularly to systems and methods for segmenting a data set and recovering the segmented data set. In one case, a system is disclosed that includes: a data transfer preparation circuit, a transfer characteristic determination circuit, and a a format insertion circuit. The data transfer preparation circuit is operable to receive a user data set and to generate an output data set based upon the user data set; the transfer characteristic determination circuit is operable to determine a distance between a first servo data wedge on a storage medium and a second servo data wedge on the storage medium; and the format insertion circuit is operable to dynamically augment the output data set with formatting information at a location selected based at least in part on the distance between the first servo data wedge and the second servo data wedge.

    Abstract translation: 一般涉及数据处理的系统和方法，更具体地涉及用于分割数据集并恢复分段数据集的系统和方法。 在一种情况下，公开了一种系统，包括：数据传输准备电路，传输特性确定电路和格式插入电路。 数据传输准备电路可操作以接收用户数据集并且基于用户数据集生成输出数据集; 传输特性确定电路可操作以确定存储介质上的第一伺服数据楔与存储介质上的第二伺服数据楔之间的距离; 并且所述格式插入电路可操作以使用至少部分地基于所述第一伺服数据楔和所述第二伺服数据楔之间的距离所选择的位置的格式化信息动态地增大所述输出数据集。

    Layered decoder enhancement for retained sector reprocessing
    30.
    发明授权
    Layered decoder enhancement for retained sector reprocessing 有权
    用于保留扇区再处理的分层解码器增强

    公开(公告)号：US08862962B2

    公开(公告)日：2014-10-14

    申请号：US13644181

    申请日：2012-10-03

    Applicant: LSI Corporation

    Inventor： Fan Zhang ,  Jun Xiao

    IPC: H03M13/00

    CPC classification number: H03M13/1137 ,  H03M13/114 ,  H03M13/116 ,  H03M13/1515 ,  H03M13/6331 ,  H03M13/6343

    Abstract: A system is described for recovering data from a number of sectors, such as the sectors of a hard disk drive (HDD) disk platter, and so forth. The system receives data from the sectors via a read channel and uses a layered data decoder to recover data from the sectors. A memory is coupled with the processor and configured to retain data received from one or more of the sectors, e.g., in retained sector reprocessing (RSR) embodiments. The system is configured to update messages in different circulant layers of the data decoder's parity-check matrix. The system uses one message update order in a processing iteration, and different message update orders in subsequent reprocessing iterations. In some embodiments, layer reordering is used for RSR. In some embodiments, circulant reordering is used for RSR.

    Abstract translation: 描述了用于从诸如硬盘驱动器（HDD）盘片等的扇区的多个扇区恢复数据的系统。 系统经由读通道从扇区接收数据，并使用分层数据解码器从扇区恢复数据。 存储器与处理器耦合并且被配置为保留从一个或多个扇区接收的数据，例如在保留的扇区再处理（RSR）实施例中。 该系统被配置为更新数据解码器奇偶校验矩阵的不同循环层中的消息。 系统在处理迭代中使用一个消息更新顺序，并在后续的后处理迭代中使用不同的消息更新顺序。 在一些实施例中，层重排序用于RSR。 在一些实施例中，循环重排序用于RSR。

Patent Agency Ranking