Intrusion detection system
US8849608B2 · kind B2 · utility
0Cited by
3References
27Claims
0Family size
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Key dates
| Filing date | Nov 1, 2011 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | Jan 18, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/19602
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for surveillance. A signal is sent to sensors on a ground in an area. The sensors are configured to generate electromagnetic radiation in response to the signal to activate the sensors. The current positions of the sensors are detected from the electromagnetic radiation generated by the sensors in response to the signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.