Cartridge having sensor hole to be opened/closed and apparatus and method for driving the same
US6728076B1 · kind B1 · utility
4Cited by
10References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1998 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Sep 10, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A cartridge having a sensor hole to be opened/closed and a method and an apparatus for driving the same. To improve a problem that a cartridge receiving a DVD-RAM disc which has been once withdrawn therefrom performs the recording process under the same conditions as a bare disc, the disclosed cartridge has a unit for flexibly opening/closing the sensor hole in accordance with a result of a defect check, so that information processing process is greatly accelerated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.