| 摘要 |
PROBLEM TO BE SOLVED: To provide an apparatus and a method of detecting error symbol in which a position at which an error is caused is detected for improving error correcting performance in an ECC decoder. SOLUTION: The error symbol detecting device is provided with an equalizer equalizing a signal received from a channel to channel equalization characteristics being suitable for the system, a data detector detecting data from a signal output from the equalizer, a modeling tool designed to have the same characteristics corresponding to a partial response (PR) target polynominal applied to a signal transmission channel of 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 molding 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 symbols of one or more from the highest order of probability of error generation to the specific order as error generating symbols. COPYRIGHT: (C)2008,JPO&INPIT
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