System and method for antenna failure detection
US6114955A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1998 |
| Grant date | Sep 5, 2000 |
| Priority date | — |
| Expiry date | Jun 3, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B17/17
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a wireless security system, the system controller includes one or more antennas for reception of signals from remote sensor-transmitter units. To detect antenna failure, the system controller generates a test signal with a known parameter and transmits this test signal via a first antenna. The system controller then measures the parameter of the corresponding test signal received, if any, via a second antenna, and compares the parameter of the corresponding test signal received to a predetermined threshold parameter. When the parameter of the test signal received via the second antenna differs from the threshold by a predetermined amount, or predetermined margin for error, an antenna failure message is generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.