Intrusion detector and method for improved sensitivity
US9841499B2 · kind B2 · utility
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13References
15Claims
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Key dates
| Filing date | Oct 9, 2014 |
| Grant date | Dec 12, 2017 |
| Priority date | — |
| Expiry date | Apr 8, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A motion detector includes a microwave-based module to detect movement. Intermediate processing circuitry is coupled to an output from the module. The processing circuitry is activated intermittently to produce first and second pulsed output signals. Cross-correlation circuitry processes the two signals to produce a motion indicating output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.