Autochanger of writable discs including a non-volatile memory for storing most recent defect management information relating to the writable discs
US5025432A · kind A · utility
11Cited by
13References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 14, 1988 |
| Grant date | Jun 18, 1991 |
| Priority date | — |
| Expiry date | Sep 14, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An autochanger of writable discs automatically transfers a write-once optical disc between a disc accommodation unit and a recording/reading device where data is recorded into and read from the optical disc. In order to shorten a disc loading time, the latest defect management information is stored in a floppy disc and renewed when a new defective sector is found in the optical disc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.