| 发明名称 |
Apparatus and method for recording, reproducing and erasing on optical recording discs |
| 摘要 |
An apparatus for recording, reproducing and erasing for an optical recording disc capable of recording information data with a high density, and capable of recording new information data and simultaneously erasing the previously recorded information data.
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| 申请公布号 |
US4403318(A) |
申请公布日期 |
1983.09.06 |
| 申请号 |
US19810256660 |
申请日期 |
1981.04.22 |
| 申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
NAGASHIMA, MICHIYOSHI;YOSHIDA, TOMIO;OHTA, TAKEO |
| 分类号 |
G11B7/09;G11B7/0055;G11B7/08;G11B7/12;G11B7/125;G11B7/135;(IPC1-7):G11B7/00 |
主分类号 |
G11B7/09 |
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