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    • 81. 发明申请
    • APPARATUS AND METHOD OF DETECTING ERROR SYMBOL, AND DISK DRIVE APPARATUS USING THE SAME
    • 检测错误符号的装置和方法以及使用其的盘驱动装置
    • US20070274419A1
    • 2007-11-29
    • US11751843
    • 2007-05-22
    • Joo-Hyun LeeJong-yun YunJae-jin Lee
    • Joo-Hyun LeeJong-yun YunJae-jin Lee
    • H04L27/06
    • H04L25/03006G11B20/10009G11B20/10046G11B20/10425
    • An apparatus and a method of detecting an error symbol in a data storage apparatus so that an error correcting performance of an error correction decoder. The error symbol detecting apparatus includes an equalizer equalizing a signal transmitted to a channel using a channel equalization characteristic that is suitable for a corresponding system, a data detector to detect data from the signal output from the equalizer, a modeling tool designed to have the same characteristics corresponding to a partial response (PR) target polynomial applied to the system, a correlation evaluation information generating unit to generate correlation evaluation information based on a correlation degree between an actual output of the equalizer and a target output of the modeling tool, and an error symbol determination unit to determine an order of probability of error generation of the symbols based on the correlation evaluation information, and to determine a predetermined number of symbols having a high probability of generating errors corresponding to the order of probability of error generation as error generating symbols.
    • 一种检测数据存储装置中的错误符号以便纠错解码器的纠错性能的装置和方法。 误差符号检测装置包括均衡器,其使用适合于对应系统的信道均衡特性来均衡发送到信道的信号;数据检测器,用于从均衡器输出的信号中检测数据;建模工具,被设计为具有相同的 对应于应用于系统的部分响应(PR)目标多项式的特征的相关性评估信息生成单元,基于均衡器的实际输出与建模工具的目标输出之间的相关度生成相关性评价信息,以及 误差符号确定单元,用于基于所述相关性评估信息来确定符号的错误产生概率的顺序,并且确定具有高概率地产生与所述错误产生的概率的顺序相对应的错误的预定数量的符号作为错误产生 符号。