Title:
INFORMATION RECORDING/REPRODUCING DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2010/038268
Kind Code:
A1
Abstract:
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.
Inventors:
OSHIMA, Yasushi (Kawasaki Plant. 1-1 Shin-ogura, Saiwai-ku, Kawasaki-sh, Kanagawa 31, 21200, JP)
大島 靖史 (〒31 神奈川県川崎市幸区新小倉１－１ パイオニア株式会社 川崎事業所内 Kanagawa, 21200, JP)
大島 靖史 (〒31 神奈川県川崎市幸区新小倉１－１ パイオニア株式会社 川崎事業所内 Kanagawa, 21200, JP)
Application Number:
JP2008/067724
Publication Date:
April 08, 2010
Filing Date:
September 30, 2008
Export Citation:
Assignee:
PIONEER CORPORATION (4-1 Meguro 1-chome, Meguro-ku Tokyo, 54, 15386, JP)
パイオニア株式会社 (〒54 東京都目黒区目黒１丁目４番１号 Tokyo, 15386, JP)
OSHIMA, Yasushi (Kawasaki Plant. 1-1 Shin-ogura, Saiwai-ku, Kawasaki-sh, Kanagawa 31, 21200, JP)
パイオニア株式会社 (〒54 東京都目黒区目黒１丁目４番１号 Tokyo, 15386, JP)
OSHIMA, Yasushi (Kawasaki Plant. 1-1 Shin-ogura, Saiwai-ku, Kawasaki-sh, Kanagawa 31, 21200, JP)
International Classes:
G11B7/09
Attorney, Agent or Firm:
EGAMI, Tatsuo et al. (3rd FloorOak Building Kyobashi,16-10, Kyobashi 1-chom, Chuou-ku Tokyo 31, 10400, JP)
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