INFORMATION RECORDING/REPRODUCING DEVICE AND METHOD

WIPO Patent Application WO/2010/038268

A1

An information recording/reproducing device (1) of the present invention comprises an optical pickup (12) which projects a laser beam (LB) to an information recording medium (100) in order to perform at least one of recording and reproduction of information in and from the information recording medium (100) and receives a reflected light of the laser beam (LB), focus error signal generation means (13) for generating a focus error signal (FE) from the received light signal based on the reflected light, tracking signal generation means (13) for generating a tracking signal (TE) used for tracking control from the received light signal based on the reflected light, correction signal generation means (21) for generating a correction signal obtained by multiplying a correction gain value that is set according to a tilt correction value of the optical pickup (12) by the tracking signal (TE), and focusing control means (121) for performing focusing control of the information recording medium (100) according to the focus error signal to which the correction signal is added.

OSHIMA YASUSHI (JP)
ONO KENICHI (JP)

PCT/JP2008/067724

April 08, 2010

September 30, 2008

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PIONEER CORP (JP)
OSHIMA YASUSHI (JP)
ONO KENICHI (JP)

G11B7/09

WO2007069655A2

2007-06-21

JPH07169070A	1995-07-04
JPH1040568A	1998-02-13
JPH1083540A	1998-03-31
JPH02166660A	1990-06-27

EGAMI, Tatsuo et al. (JP)
Tatsuo Egami (JP)

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