System and method of detecting human presence
US7985953B2 · kind B2 · utility
18Cited by
17References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2008 |
| Grant date | Jul 26, 2011 |
| Priority date | — |
| Expiry date | Mar 31, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B21/0469
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A detector of human emitted Blackbody radiation includes a plurality of series connected thermocouples. A lens can be associated with each of the thermocouples. Incoming radiation produces a different response in each of the thermocouples in accordance with a respective angle of arrival even from a motionless radiation source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.