Data reproducing device using a high-pass fir filter
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United States of America Patent
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Aug 31, 1999
Issued Date -
N/A
app pub date -
Nov 21, 1997
filing date -
Sep 30, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In data reproducing device, a reproducing signal is detected from a magnetic recording medium in which data is recorded, and an equalizer equalizes the reproducing signal. A sampling circuit samples the reproducing signal from the equalizer, and a filter having a characteristic of linearly delaying a phase of the reproducing signal in a frequency range not higher than a predetermined frequency performs filtering of the resulting sampled value. Thus, phase compensation in a low frequency range of the reproducing signal can be performed satisfactorily in comparison with the conventional device.
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