Card reader with improved data processing timing control
US4284883A · kind A · utility
1Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 23, 1979 |
| Grant date | Aug 18, 1981 |
| Priority date | — |
| Expiry date | May 23, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/016
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A badge reader adapted to communicate with remotely located data processing equipment, said badge reader having data processing circuitry controlled by a rate clock which in turn is enabled and disabled by internal and external signals to provide clock signals only when and as required for carrying out selected data processing operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.