Optical disk medium and its application method and system
US5150339A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 1990 |
| Grant date | Sep 22, 1992 |
| Priority date | — |
| Expiry date | Apr 20, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2537
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In the present invention, there is provided an optical disk medium wherein a ROM region having data already recorded therein and capable of only optically reproducing (reading) the data as well as a RAM region capable of optically recording and reading out therein and therefrom are interlacedly located in such a positional relationship that enables the substantially continuous and high-speed accessing operation to the read-only ROM and rewritable RAM data, and some of stationary data to be stored suitably in the ROM region are stored in positional relationship closer to some of additional data to be stored suitably in the RAM region which are especially closely related to the some of the stationary data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.