Reproduction and/or recording device for optical recording media of varying storage density
US5802029A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 25, 1996 |
| Grant date | Sep 1, 1998 |
| Priority date | — |
| Expiry date | Jul 25, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2007/0006
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A reproduction and/or recording device for optical recording media which is compatible in respect of varying storage density, despite an interdependence between pit or domain size, and the light spot size. Use is made of a track guidance signal generation device which can be changed over according to the storage density type and is connected to a detector which can be used for recording media of varying storage density, i.e. in the form of the standardized CD, minidisk or MOD, and for optical recording media, which have a comparatively higher information storage density, or smaller track spacings and smaller dimensions of the pits or storage structures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.