Servo controller and optical disk device
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United States of America Patent
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-
Jul 3, 2012
Grant Date -
May 19, 2011
app pub date -
Apr 28, 2010
filing date -
Nov 13, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In a servo controller and an optical disk device (FIG. 4), the following performance for disturbance is improved. By disposing a characteristic change section to change a characteristic to improve the following performance for disturbance, the disturbance is detected by use of a signal in a stage after the characteristic change section.
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