Title:
OPTICAL RECORDED INFORMATION REPRODUCING METHOD AND DEVICE AND OPTICAL RECORDED INFORMATION REPRODUCING PROGRAM
Document Type and Number:
WIPO Patent Application WO/2007/148670
Kind Code:
A1
Abstract:
Provided is a defect management system (1) for managing defects of data, which
is written on a recording medium (3) based on light applied at a quantity adjusted
to a prescribed light quantity by a light quantity adjusting element (19). The
system is provided with a computer (13) for obtaining reproduction characteristics,
which indicate characteristics of reproduced data to be the reference for judging
whether the data is defective or not, corresponding to a plurality of different
reproduction speeds; an optical pick up section (5); a power adjusting section
(7); a record reproduction data processing section (11); and a computer (13)
for adjusting correlative relationship between the derived reproduction characteristics
for each of the reproduction speeds, by changing light quantity adjusting degree
by a light quantity adjusting element (19).
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Inventors:
MUTO, Hideyuki (PIONEER CORPORATION 4-2610,Hanazono, Tokorozawa-sh, Saitama 22, 3598522, JP)
武藤 秀幸 (〒22 埼玉県所沢市花園４丁目２６１０番地 パイオニア株式会社所沢工場内 Saitama, 3598522, JP)
FURUKAWA, Junichi (PIONEER CORPORATION 4-2610,Hanazono, Tokorozawa-sh, Saitama 22, 3598522, JP)
武藤 秀幸 (〒22 埼玉県所沢市花園４丁目２６１０番地 パイオニア株式会社所沢工場内 Saitama, 3598522, JP)
FURUKAWA, Junichi (PIONEER CORPORATION 4-2610,Hanazono, Tokorozawa-sh, Saitama 22, 3598522, JP)
Application Number:
JP2007/062270
Publication Date:
December 27, 2007
Filing Date:
June 19, 2007
Export Citation:
Assignee:
PIONEER CORPORATION (4-1 Meguro 1-chome, Meguro-ku Tokyo, 54, 1538654, 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, 1538654, JP)
MUTO, Hideyuki (PIONEER CORPORATION 4-2610,Hanazono, Tokorozawa-sh, Saitama 22, 3598522, JP)
武藤 秀幸 (〒22 埼玉県所沢市花園４丁目２６１０番地 パイオニア株式会社所沢工場内 Saitama, 3598522, 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, 1538654, JP)
MUTO, Hideyuki (PIONEER CORPORATION 4-2610,Hanazono, Tokorozawa-sh, Saitama 22, 3598522, JP)
武藤 秀幸 (〒22 埼玉県所沢市花園４丁目２６１０番地 パイオニア株式会社所沢工場内 Saitama, 3598522, JP)
International Classes:
G11B7/004; G11B7/125
Attorney, Agent or Firm:
KIKUCHI, Yasuhiro (Yotsuya International Patent Firm, The 6th Tomizawa Building 3rd Floor 12-5, Yotsuya 2-chome, Shinjuku-k, Tokyo 04, 1600004, JP)
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