Card reader protecting device
US3946204A · kind A · utility
8Cited by
6References
16Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 10, 1974 |
| Grant date | Mar 23, 1976 |
| Priority date | — |
| Expiry date | Jul 10, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K13/0881
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A card reader protecting device is provided which prevents any wrong card or foreign substance from being pushed thereinto by providing a material to be detected such as metal foil for indicating the authenticity of any normal card, and detecting adaptive signals produced by such a material, said device comprising a detection circuit for detecting said material, and a control circuit for controlling feed of said normal card to the card reader.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.