Prerecorded dual strip data storage card
US4609812A · kind A · utility
98Cited by
13References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 10, 1985 |
| Grant date | Sep 2, 1986 |
| Priority date | — |
| Expiry date | Sep 10, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/24
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data storage card having spaced apart data strips. The card is wallet-size and preferably the strips run parallel to the lengthwise dimension of the card. One strip is made of a high capacity reflective read-only optical memory (ROOM) material. The other strip is a magnetic recording material. The high capacity ROOM strip may be made of a laser recorded material or it may be made of a material which is prerecorded using a photographic process. The two strips store complementary data in database applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.