Servo processor receiving photodetector signals
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United States of America Patent
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Aug 11, 2015
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N/A
app pub date -
Apr 1, 2013
filing date -
Jan 25, 2001
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Abstract
A servo processor for an optical disk drive is provided that includes: an analog-to-digital converter for converting versions of photodetector output signals into digital signals; and a digital signal processor configured to receive the digital signals, the digital signal processor being further configured to determine a focus error signal (FES) and a tracking error signal (TES) from the digital signals, the digital signal processor being further configured to process TES and FES through servo algorithms to produce tracking and focus control signals.
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