Digital servo control system for use in disk drives
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United States of America Patent
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Jun 10, 1997
Issued Date -
N/A
app pub date -
Jun 1, 1995
filing date -
Sep 18, 1990
priority date (Note) -
Expired
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Abstract
A servo control system provides adaptive compensation for a variety of tracking and seek problems found in disk drive. The servo control system is ideally implemented in digital form for accuracy, speed and compactness. A first embodiment includes two modes, a tracking (or position) mode and a seek (or velocity) mode, each mode employing a variety of compensation functions. A second embodiment includes a single comprehensive control system which functions during both tracking and seek operations.
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