Data recording and reproducing system, and data recording...

Details Data recording and reproducing system, and data recording... Data recording and reproducing system, and data recording...

2005-01-24

2008-09-30

Torres, Joseph D. (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S795000, C714S780000, C714S755000

Reexamination Certificate

active

07430705

ABSTRACT:
A data recording and reproducing system adds a first error correcting code to input data to generate a first code block, encodes the first code block with a second error correcting code to generate a second code block, interleaves the second code block to generate a recording block, and records and reproduces the recording block via a partial response channel including a recording medium. An output signal from the partial response channel, and thus the second code block, is decoded; the decoded data and the reliability of the decoded data is determined, based on likelihood information obtained during iterative decoding; and the first error correcting code is decoded. The decoded data and the reliability information are supplied to the first error correcting code decoder.

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