Optical disc apparatus
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United States of America Patent
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Jan 27, 2009
Grant Date -
Jun 22, 2006
app pub date -
Dec 21, 2005
filing date -
Dec 21, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An optical disc apparatus includes: a read unit for outputting an RF signal, which is a read signal of data recorded in an optical disc, by irradiating a laser beam to the optical disc and detecting reflected light in a photo detector; an equalize unit for performing equalize adjustment on the RF signal, which is an output from the read unit; a playback unit for generating a playback signal from the RF signal having undergone the equalize adjustment by the equalize unit and outputting the playback signal; a parameter storage unit for storing initial values of parameters used for the equalize adjustment by the equalize unit; and a parameter detection unit for detecting a value of at least one parameter at which jitter of the RF signal having undergone the equalize adjustment by the equalize unit becomes optimal during playback of the optical disc.
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