Method and apparatus for selectively changing archival information on an optical disk
US5124963A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 7, 1991 |
| Grant date | Jun 23, 1992 |
| Priority date | — |
| Expiry date | Jan 7, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/65
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk recording and/or reproducing apparatus for a recordable disk of the kind provided with absolute addresses, such as a recordable and reproducible compact disk, wherein a program area and a lead-in area are provided on the disk, data such as the performance information is recorded in the program area, archival information showing the record contents of the program area is recorded in the lead-in area, and the program area is reproduced on the basis of the archival information in the program area. According to the present invention, the archival information is reproduced from the lead-in area, the sequence contained in the information is changed, and the information which has been changed in its sequence is re-recorded in the lead-in area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.