IC card reader/writer apparatus
US4709136A · kind A · utility
112Cited by
1References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 3, 1986 |
| Grant date | Nov 24, 1987 |
| Priority date | — |
| Expiry date | Jun 3, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B7/02
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An IC card reader/writer apparatus includes at least two contactors in which IC cards are inserted, respectively, card detecting means for detecting that at least two IC cards have been loaded, and collating means for verifying that correct cipher codes of the two IC cards coincide with those inputted externally, respectively, wherein access to the contents stored in the IC cards is allowed only when the collation results in coincidence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.