Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction
Reexamination Certificate
2010-07-09
2011-11-01
Abraham, Esaw (Department: 2112)
Error detection/correction and fault detection/recovery
Pulse or data error handling
Digital data error correction
C714S794000, C714S796000, C375S341000, C375S262000
Reexamination Certificate
active
08051366
ABSTRACT:
According to one embodiment, a data reproducing apparatus includes a reader, Viterbi decoder, metric difference calculator, an error correction decoder, and a detector. The reader reads data. The Viterbi decoder decodes the data read by the reader. The metric difference calculator calculates a metric difference between a maximum likelihood path and a competitive path, based on an output from the Viterbi decoder. The error correction decoder executes an error correction decoding for the output of the Viterbi decoder. The detector detects that an error detected by the error correction decoder is uncorrectable, and the metric difference detected by the metric difference calculator is larger than a predetermined value.
REFERENCES:
patent: 5710756 (1998-01-01), Pasternak et al.
patent: 5910182 (1999-06-01), Dent et al.
patent: 5983383 (1999-11-01), Wolf
patent: 6981205 (2005-12-01), Fukushima et al.
patent: 7162675 (2007-01-01), Das et al.
patent: 2002/0154434 (2002-10-01), Satoh et al.
patent: 2008/0037391 (2008-02-01), Nakamura
patent: 2000-105901 (2000-04-01), None
patent: 2003-007008 (2003-01-01), None
patent: 2005-032312 (2005-02-01), None
patent: 2006-048760 (2006-02-01), None
patent: 3924491 (2007-03-01), None
patent: 4239110 (2009-01-01), None
patent: WO 2006/049155 (2006-05-01), None
patent: WO 2009/011378 (2009-01-01), None
Information Sheet for Information Disclosure Statement.
Notice of Reasons for Rejection mailed by Japan Patent Office on Sep. 21, 2010 in the corresponding Japanese patent application No. 2009-162932.
Abraham Esaw
Kabushiki Kaisha Toshiba
Knobbe Martens Olson & Bear LLP
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