Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
Reexamination Certificate
2007-08-14
2007-08-14
Wellington, Andrea (Department: 2627)
Dynamic information storage or retrieval
Condition indicating, monitoring, or testing
Including radiation storage or retrieval
C369S059220, C714S794000
Reexamination Certificate
active
09956080
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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Fujiwara Toru
Taguchi Masakazu
Battaglia Michael V.
Fujitsu Limited
Staas & Halsey , LLP
Wellington Andrea
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