Sychronous read channel
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United States of America Patent
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-
Nov 23, 1999
Issued Date -
N/A
app pub date -
Mar 21, 1997
filing date -
Feb 1, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A synchronous read channel is disclosed which samples an analog read signal from a magnetic read head positioned over a magnetic disk medium, computes a DC offset in the sample values in real time, and subtracts the DC offset from the read signal. This attenuates the deleterious affect a DC offset has on the detection algorithm used to detect the recorded data, such as the Viterbi detection algorithm.
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