Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data clocking
Patent
1996-11-18
1999-04-06
Psitos, Aristotelis M.
Dynamic magnetic information storage or retrieval
General processing of a digital signal
Data clocking
364746, 360 51, G11B 509
Patent
active
058926321
ABSTRACT:
A sampled amplitude read channel is disclosed for disk storage systems which asynchronously samples an analog read signal, adaptively equalizes the resulting discrete time sample values according to a target partial response, extracts synchronous sample values through interpolated timing recovery, and detects digital data from the synchronous sample values using a Viterbi sequence detector. To increase the speed of the read channel, the FIR filters in the equalizer and interpolator are implemented according to a residue number system. Further, the residue number system implementation of the FIR filters uses "one-hot" encoding to decrease power dissipation.
REFERENCES:
patent: 4598266 (1986-07-01), Bernardson
patent: 4816805 (1989-03-01), Vojir et al.
patent: 4862402 (1989-08-01), Shah et al.
patent: 4949294 (1990-08-01), Wambergue
patent: 5008668 (1991-04-01), Takayama et al.
patent: 5050120 (1991-09-01), Houk
patent: 5060088 (1991-10-01), Dolivo et al.
patent: 5107451 (1992-04-01), Houk
patent: 5117383 (1992-05-01), Fujita et al.
patent: 5150379 (1992-09-01), Baugh et al.
patent: 5189420 (1993-02-01), Eddy et al.
patent: 5313412 (1994-05-01), Nukui
patent: 5319674 (1994-06-01), Cherubini
patent: 5361221 (1994-11-01), Fujita
patent: 5481568 (1996-01-01), Yada
patent: 5487085 (1996-01-01), Wong-Lam et al.
patent: 5590154 (1996-12-01), Forni et al.
patent: 5617573 (1997-04-01), Huang et al.
patent: 5696639 (1997-12-01), Spurbeck et al.
U.S. application No. 08/640,410, Behrens et al., filed Apr. 30, 1996.
Simon Haykin--Adaptive Filter Theory, Prentice-Hall, pp. 383-385, 1986.
Jenkins, Leon, "The Use of Residue Number System in the Design of Finite Impulse Response Digital Filters," IEEE Transactions on Circuits and Systems, vol. CAS-24, No. 4, pp. 191-201, Apr. 1977.
Soderstrand, Escott, "VLSI Implementation in Multiple-Valued Logic of an FIR Digital Filter Using Residue Number System Arithmetic," IEEE Transactions on Circuits and Systems, vol. CAS-33, No. 1, pp. 5-25, Jan. 1986.
Behrens Richard T.
Dudley Trent O.
Spurbeck Mark S.
Welland David R.
Cirrus Logic Inc.
Psitos Aristotelis M.
Sheerin Howard H.
Shifrin Dan A.
Vann Joseph M
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