Signal processor having feedback loop control for decision...

Details Signal processor having feedback loop control for decision... Signal processor having feedback loop control for decision...

2006-04-04

2006-04-04

Phu, Phuong (Department: 2631)

Pulse or digital communications

Synchronizers

Phase displacement, slip or jitter correction

C375S376000, C375S233000, C369S053340, C369S053350

Reexamination Certificate

active

07023946

ABSTRACT:
A signal processor used to process an analog read signal representing data stored on a magnetic disk allows for a faster read operation without requiring an increase in its circuit area or buffer memory space. The signal processor includes a decision feedback equalizer which selectively provides a feedback signal added to a read signal in reproducing data read from a storage medium. The signal processor also performs error correction. In performing error correction, the load of the error correcting process is detected and the processing speed is altered depending upon the detected load.

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Office Action of Nov. 4, 2002, Referencing Kim's patent 5,917,855 of Jun. 1999.
V. Yu, et al., “Error Propagation Evaluation for RLL-Constrained DFE Read Channels”,IEEE Transactions on Magnetics, vol. 34, No. 1, Jan. 1998.

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