发明名称 |
Recording and reproducing method of optical information recording medium |
摘要 |
<p>The present invention relates to a recording and reproducing method and apparatus for an optical disk (1) of the phase transition type that can be overwritten. According to this invention, the capacity of repeated rewriting of the optical disk (1) is expanded by recording either non-inverted write data (11a) or inverted write data (11b) 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. <IMAGE></p> |
申请公布号 |
EP0718831(A2) |
申请公布日期 |
1996.06.26 |
申请号 |
EP19950120181 |
申请日期 |
1995.12.20 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD |
发明人 |
NAGATA, KEN'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):G11B7/00 |
主分类号 |
G11B7/004 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|