Control station for data carriers
US5124535A · kind A · utility
16Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1989 |
| Grant date | Jun 23, 1992 |
| Priority date | — |
| Expiry date | Jun 23, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C9/28
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In order to control or identify an authorization of access, use is made of a control station which has two different read-write systems. The first unit is designed in particular for remote control of active date carriers comprising a microcomputer. The second read-write system is designed for the control of passive data carriers, on which the data are stored in a magnetic or optical form. Preferably both read-write systems are provided with parallel outputs, to which a switching system is connected, which passes to the peripheral systems the output signals produced by means of the desired data carrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.