Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data verification
Patent
1997-03-19
1999-11-02
Faber, Alan
Dynamic magnetic information storage or retrieval
General processing of a digital signal
Data verification
360 46, 360 51, G11B 509
Patent
active
059781629
ABSTRACT:
A synchronous read channel is disclosed which samples an analog read signal from a magnetic read head positioned over a magnetic disk medium, filters the sample values according to a desired partial response, extracts timing information from the filtered sample values, and detects an estimated data sequence from the filtered sample values using a discrete time sequence detector. A Channel Quality circuit accumulates various signals generated by the read channel, such as sample errors, gain errors, timing errors, etc., for use in calibrating the read channel components and estimating the bit error rate.
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Anderson Kent D.
Armstrong Alan J.
Behrens Richard T.
Dudley Trent
Foland Bill R.
Cirrus Logic Inc.
Faber Alan
Sheerin Howard H.
Shifrin Dan A.
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