Pick-up head controller for optical disk drives
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United States of America Patent
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Aug 6, 2002
Grant Date -
N/A
app pub date -
May 4, 2000
filing date -
May 4, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Disclosed is a pick-up head controller for optical disk drives, structured particularly for optimal actuation characteristics of a pick-up head of optical disk drives. A framework, composed of a high-frequency digital controller and a low-frequency digital controller, accomplishing different order types of controllers required by optical head systems, is provided based upon the sampling rate dependence of response of digital controllers. Experimental results shows excellent performance in optical systems that high performance, low cost and easy designing can be achieved.
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