Invention Grant
US07898915B2 Method and apparatus for determining recording powers for recording on an optical disc
有权
用于确定在光盘上记录的记录功率的方法和装置
- Patent Title: Method and apparatus for determining recording powers for recording on an optical disc
- Patent Title (中): 用于确定在光盘上记录的记录功率的方法和装置
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Application No.: US12410837Application Date: 2009-03-25
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Publication No.: US07898915B2Publication Date: 2011-03-01
- Inventor: Nobuyuki Baba
- Applicant: Nobuyuki Baba
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Knobbe, Martens, Olson & Bear LLP
- Priority: JP2008-080274 20080326
- Main IPC: G11B7/12
- IPC: G11B7/12 ; G11B7/00

Abstract:
Provided is an optical disc apparatus including: a recording unit configured to record data on an optical disc with laser lights of recoding powers set for first and second layers thereof; and a control unit configured to record/reproduce test data on/from these layers, determine first and second optimum recording powers for these layers, and set the determined first and second optimum recording powers in the recording unit, wherein the control unit changes the recording power across a predetermined search width, centering on a first recommended value for the first layer to determine the first optimum recording power, and corrects a second recommended value for the second layer on the basis of the first recommended value and the first optimum recording power and changes the recording power across the search width, centering on the corrected second recommended value to determine the second optimum recording power.
Public/Granted literature
- US20090245044A1 OPTICAL DISC APPARATUS AND OPTICAL DISC RECORDING AND REPRODUCING METHOD Public/Granted day:2009-10-01
Information query
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