Controller for an optical disk drive, semiconductor integrated circuit and optical disk drive
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United States of America Patent
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May 22, 2007
Grant Date -
Mar 18, 2004
app pub date -
Aug 29, 2003
filing date -
Aug 30, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A controller for an optical disk drive includes a modulator configured to modulate a record data to be recorded on a optical disk based on a record clock that is a reference clock in recording, and to generate a modulation data and an address information of the modulation data. A prepit decoder is configured to generate a prepit clock from a prepit signal detected from the optical disk, and a decision circuit is configured to determine whether or not recording in accordance with a standard is performed, from phase characteristic based on the address information and the prepit clock, and to control a frequency of the record clock.
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