Digital signal reproducing circuit which counts the increasing a

Details Digital signal reproducing circuit which counts the increasing a Digital signal reproducing circuit which counts the increasing a

1993-11-08

1996-01-23

Psitos, Aristotelis

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of equalizing

360 46, 375341, G11B 5035, G11B 509, H03D 100

Patent

active

054869560

ABSTRACT:
A digital signal reproducing circuit for reproducing a digital signal recorded on a recording medium, includes: an equalizing circuit for receiving a reproduced RF signal and varying at least one of gain characteristics and phase characteristics thereof with a control signal; a Viterbi decoder for receiving the output signal of the equalizing circuit; and a control unit for generating a control signal for the equalizer, wherein the control unit is adapted to control the equalizer so as to minimize a metric increasing amount of the Viterbi decoder.

REFERENCES:
patent: 5287385 (1994-02-01), Sugawara et al.
patent: 5400189 (1995-03-01), Sato et al.
Cioffi et al. "Adaptive Equalization in Magnetic-Disk Storage Systems" Feb. 1990 IEEE Comm. Mag. pp. 14-29.

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