Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Masakazu Taguchi1
Toru Fujiwara1
Date of Patent
August 14, 2007
Patent Application Number
09956080
Date Filed
September 20, 2001
Patent Primary Examiner
Patent abstract
A defect detection device for detecting a defect of data recorded on a recording medium includes a waveform state detection part generating information representing a state of a waveform of a reproduced signal from the recording medium based on soft decision results obtained in process of reproducing the data in accordance with a maximum likelihood decoding algorithm corresponding to partial response, and a defect determination part determining the defect of the recorded data based on the information generated in said waveform state detection part.
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