Optical disk apparatus and recording and reading method for an optical disk using the same
US5703855A · kind A · utility
36Cited by
6References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 30, 1994 |
| Grant date | Dec 30, 1997 |
| Priority date | — |
| Expiry date | Mar 30, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/182
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A super high density optical disk apparatus is obtained by using an exchangeable recording medium having a recording capacity of at least 1.5 Gb/in.sup.2 in an optical recording and reading apparatus for recording or reading at least using a laser beam or by using one of an element which can record on a recording medium only once and another element which can record at least two times repeatedly as recording elements to be used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.