Optical disk, optical disk barcode forming method, optical disk reproduction apparatus, marking forming apparatus, method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk
US6285762A · kind A · utility
17Cited by
24References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1999 |
| Grant date | Sep 4, 2001 |
| Priority date | — |
| Expiry date | Sep 23, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical disk includes a first area where data is recorded with pit pattern, a second information area where another data is recorded with marks which have a stripe-like configuration, and a guard band area formed between the first information area and the second information area. An address is written with pit pattern on the guard band area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.