Information recording medium apparatus for forming the same and information recording and reproducing systems
US6584065B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2000 |
| Grant date | Jun 24, 2003 |
| Priority date | — |
| Expiry date | Jun 24, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An information recording at a high density to an information recording medium and a proper reproduction of information which has been recorded on the information recording medium at a high density are realized. Optical characteristics of an information recording medium are measured and information regarding the measured optical characteristics is previously recorded in a proper area on the information recording medium. When an information recording system records information to the information recording medium on which the information regarding the optical characteristics has been recorded, the information regarding the optical characteristics is read and a proper information recording state is adjusted on the basis of the information regarding the optical characteristics, thereby allowing the information recording to be performed. When an information reproducing system reproduces the information from the information recording medium on which the information regarding the optical characteristics has been recorded, the information regarding the optical characteristics is read and a proper information reproducing state is adjusted on the basis of the information regarding the optical…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.