Memory card comprising an optical memory disc and microelectronic memory component, and apparatus for transferring information to and from such card
US4868373A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 1986 |
| Grant date | Sep 19, 1989 |
| Priority date | — |
| Expiry date | Feb 27, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0033
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatus for transferring data and other information between a data processing unit and a rectangular memory card which includes an optically readable data memory unit having a succession of substantially concentric data storage tracks thereon, the card also including at least one microelectronic component which stores further information. Such component is connected to connection points on the surface of the card. Data is read from the tracks of the memory unit by optical scanning during rotation of the card about the axis of symmetry of the memory unit, and information is transferred between the microelectronic component and the data processing unit by an information transfer unit which is coupled to the connection points on the card and to the data processing unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.