Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction
Reexamination Certificate
2006-04-18
2006-04-18
Chase, Shelly (Department: 2133)
Error detection/correction and fault detection/recovery
Pulse or data error handling
Digital data error correction
C714S786000
Reexamination Certificate
active
07032155
ABSTRACT:
A data regenerating apparatus that generates decoded data by performing a decoding process on a readout signal from a storage medium according to an iterative decoding technique corresponding to a turbo coding technique, and regenerates recorded data by performing a predetermined error correction process on the decoded data is disclosed. The apparatus includes an error state detector configured to detect an error state of the decoded data; a first determination unit configured to determine whether or not the error state of the decoded data detected by the error state detector is correctable in the predetermined error correction process; and, a decoding controller configured to stop the decoding process when it is determined by the first determination unit that the error state of the decoded data is correctable in the predetermined error correction process.
REFERENCES:
patent: 6182261 (2001-01-01), Haller et al.
patent: 1267346 (2002-12-01), None
patent: 2000-183758 (2000-06-01), None
patent: 2001-44855 (2001-02-01), None
Bajesy et al., Iterative decoding for digital recording systems, 1998, IEEE, p. 2700-2705.
“Performance of High Rate Turbo Codes on a PR4-Equalized Magnetic Recording Channel”; William E Ryan;IEEE Int'l Conf. on Communications; pp. 947-951; 1998.
Chase Shelly
Fujitsu Limited
Greer Burns & Crain Ltd.
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