Electronic anti-theft system with correlated transmit/receive antennas
US7532608B2 · kind B2 · utility
2Cited by
5References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 10, 2005 |
| Grant date | May 12, 2009 |
| Priority date | — |
| Expiry date | Jul 11, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2209/61
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An electronic anti-theft system and an operating method have transmit/receive antennas of different frequencies that are electrically correlated with one another. The data communication of access code signals takes place at least partially via shared signal paths. A frequency decoupling of the access code signals is also performed. The transmit/receive antennas are preferably also embodied as structurally integrated. In this way a substantial simplification of the system and simultaneously also a cost optimization can be achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.