System and method for securely operating a barrier actuating device
US7365634B2 · kind B2 · utility
17Cited by
3References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 27, 2005 |
| Grant date | Apr 29, 2008 |
| Priority date | — |
| Expiry date | Jul 16, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2209/64
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A barrier actuating device is placed in close proximity to an authorization device. Electromagnetic enabling information that has been automatically sent from the authorization device is detected. Responsive to the detecting of the electromagnetic enabling information, an operation of the barrier actuating device is enabled so that the actuating device is operable to transmit a signal. The operation of the actuating device is disabled in the absence of the enabling information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.