发明名称 |
Optical information recording and reproducing system with overwrite capability and recording medium for use therewith |
摘要 |
The present invention relates to a recording and reproducing method and apparatus for an optical disk of the phase transition type that can be overwritten. According to this invention, the capacity of repeated rewriting of the optical disk is expanded by recording either non-inverted write data or inverted write data at random. The deterioration due to the repeated rewriting at a start point and an end point of the recording is suppressed by recording a synchronizing signal before the write data and/or dummy data after the write data in the way such that thermal stress is less likely to occur. A record end position can be determined precisely by detecting a stop pulse to stop recording.
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申请公布号 |
US2003123365(A1) |
申请公布日期 |
2003.07.03 |
申请号 |
US20030339857 |
申请日期 |
2003.01.09 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
NAGATA KEN?APOS,ICHI;NISHIUCHI KENICHI;OHNO EIJI;AKAHIRA NOBUO;NARUMI KENJI |
分类号 |
G11B7/004;G11B7/0045;G11B7/0055;G11B7/006;G11B7/007;G11B7/013;G11B7/09;G11B7/125;G11B20/12;G11B27/19;G11B27/30;G11B27/36;(IPC1-7):G11B7/005 |
主分类号 |
G11B7/004 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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