Optical data access apparatus and method thereof
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United States of America Patent
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May 20, 2014
Grant Date -
Jan 8, 2009
app pub date -
Jul 2, 2007
filing date -
Jul 2, 2007
priority date (Note) -
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Abstract
A method for controlling an OPU and an optical data access apparatus are provided. A signal generator is configured to generate a servo signal in response to data access. A comparator is configured to compare a threshold level and the servo signal, and generate a control level if a level of the servo signal against the threshold level when the OPU is controlled. An adjustment unit is configured to adjust a control signal according to the control level. The OPU is controlled according to the adjusted control signal.
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