Invention Grant
- Patent Title: Recording power correction method and recording and reproduction apparatus for optical disk
- Patent Title (中): 光盘的记录功率校正方法和记录和再现装置
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Application No.: US11936700Application Date: 2007-11-07
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Publication No.: US07881170B2Publication Date: 2011-02-01
- Inventor: Hiroya Kakimoto
- Applicant: Hiroya Kakimoto
- Applicant Address: JP Tokyo
- Assignee: Taiyo Yuden Co., Ltd.
- Current Assignee: Taiyo Yuden Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Law Office of Katsuhiro Arai
- Priority: JP2006-309878 20061116
- Main IPC: G11B7/00
- IPC: G11B7/00

Abstract:
Correction of recording power is appropriately performed to an optical disk. The recording power correction method includes a step of temporarily stopping data recording into an optical disk, reproducing a result of the relevant data recording, and specifying a detection pattern including a predetermined code in a reproduction signal; a step of detecting a signal state in the reproduction signal corresponding to the detection pattern; and a determination step of determining at least a correction direction of recording power in the data recording based on the detected signal state and a reference state specified from the detection pattern. Processing is performed on the basis of the detection pattern in this way, thereby the method can cope with even a recording and reproduction system for optical disk employing the PRML signal processing method.
Public/Granted literature
- US20080151714A1 RECORDING POWER CORRECTION METHOD AND RECORDING AND REPRODUCTION APPARATUS FOR OPTICAL DISK Public/Granted day:2008-06-26
Information query
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