Radio frequency patch antenna and system for permitting secure access to a restricted area
US10085135B2 · kind B2 · utility
3Cited by
21References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2016 |
| Grant date | Sep 25, 2018 |
| Priority date | — |
| Expiry date | Apr 18, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/63
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A wireless device access system employs short-range wireless communication to require the proximity of a user device to a restricted area prior to communicating an unlock request. The access system authenticates the unlock request and the proximity of the user to the restricted area prior to transmitting an unlock command to an access governor. Additionally, the access system uses an access node configured to shape the radiation pattern of short-range wireless communications to better determine the position of a user proximate to an access governor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.