Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data verification
Patent
1996-09-06
2000-10-17
Loomis, Paul
Dynamic magnetic information storage or retrieval
General processing of a digital signal
Data verification
G11B 509
Patent
active
061340650
ABSTRACT:
A method and a device in which information is written on a medium and is read out, and which establishes whether the information read is sufficiently reliable, and in which so-called erasure information is used to establish the influence of media defects and other imperfections on the occurrence of errors in a transmission system. The medium is, for example, a hard disk containing one or more bad spots whose location can be accurately detected. The implementation of the method makes accurate and fast computation of the bit error rate possible.
REFERENCES:
patent: 4549295 (1985-10-01), Purvis
patent: 4575770 (1986-03-01), Dieterich
patent: 4791643 (1988-12-01), Molstad et al.
patent: 4924331 (1990-05-01), Robinson et al.
patent: 5121263 (1992-06-01), Kerwin et al.
patent: 5589994 (1996-12-01), Yamasaki et al.
patent: 5892884 (1999-04-01), Sugiyama et al.
"Comparative Performance Between Drop-Out Detection and Viterbi Reliablility Metric Erasure Flagging" W. Ryan, IEEE Transactions on Magnetics, vol. 28, No. 5, Sep. 1992, pp. 2898-2900.
Performance Improvement in Decision Feedback Equalisers by Using `Soft Decision`, E. Dahlman et al, Electronics Letters, vol. 24, No. 17, Aug. 18, 1988, pp. 1084-1085.
"A Null Zone Decision Feedback Equalizer Incorporating Maximum Likelihood Bit Detection" R. Gitlin et al, IEEE Transactions on Communications, vol. Com-23, No. 11, Nov. 1975 pp. 1243-1250.
"On Decoding of Correlative Level Coding Systems with Ambiguity Zone Detection" H. Kobayashi et al, IEEE Transactions on Communication Tech., vol. Com. -19, No. 4, Aug. 1971, pp. 467-477.
"A Window-Margin-Like Procedure for Evaluating PRML Channel Performance" T. Perkins et al, IEEE Transactions on Magnetics, vol. 31, No. 2, Mar. 1995, pp. 1109-1114.
"Magnetic Charcterization Using Elements of a PRML Channel" J. Coker et al, IEEE Transactions on Magnetics, vol. 27, No. 6, Nov. 1991, pp. 4544-4548.
"Digital Communications" J. Proakis, McGraw-Hill, 1983, p. 61.
"Theory and Practice of Error Control Codes" R. Blahut, Addison-Wesley Publishing, p. 11 and p. 199.
"A Method of Analysis for Interleaved Reed-Solomon Coding with Erasure Decoding on Burst Error Channels" W. Ryan et al, IEEE Transactions on Communications, vol. 41, No. 3, Mar. 1993, pp. 430-434.
Bergmans Johannes W. M.
Brittenham Steve
Voorman Johannes O.
Franzblau Bernard
Hewlett--Packard Company
Loomis Paul
Neal Regina Y.
U.S. Philips Corporation
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