Secure access systems utilizing more than one IC card
US5878134A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1997 |
| Grant date | Mar 2, 1999 |
| Priority date | — |
| Expiry date | Sep 8, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/445
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A secure access system for controlling access to a plurality of items. The system includes a first IC card reader adapted to receive a first IC card which includes first control information, a second IC card reader adapted to receive a second IC card which includes second control information, and a control integrator receiving the first control information and the second control information and allowing access to a first one of the plurality of items based, at least in part, on both the first control information and said second control information, and to a second one of the plurality of items based, at least in part, on the first control information, without regard to the second control information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.