发明名称 |
Device and method for recording data to optical disk using recording pulse with corrected edge position |
摘要 |
The present invention provides a device and method for an optical disc such as a DVD which can keep proper edge position of a recording pulse to record data of high quality without depending on a fluctuation in a supply voltage and a fluctuation in a temperature. The optical disc device according to the present invention comprises a laser driver for driving a laser to record data on an optical disc, a recording pulse generator for generating a recording pulse signal by using a predetermined delay circuit, to control the switching of the laser power of the laser driver, a delay amount measuring section for measuring the delay amount of a delay circuit in the recording pulse generator, and a recording pulse position correction section for correcting the predetermined edge position of the recording pulse based on the result of the measurement.
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申请公布号 |
US7139228(B2) |
申请公布日期 |
2006.11.21 |
申请号 |
US20040787590 |
申请日期 |
2004.02.27 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
GUSHIMA TOYOJI;INOUE IKUNORI |
分类号 |
G11B11/03;G11B5/76;G11B7/00;G11B7/0045;G11B7/006;G11B7/125 |
主分类号 |
G11B11/03 |
代理机构 |
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地址 |
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