Supervised PIR motion-detection system
US5382944A · kind A · utility
11Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1992 |
| Grant date | Jan 17, 1995 |
| Priority date | — |
| Expiry date | Aug 5, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S250/01
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A passive infrared motion detection system is provided with means for detecting increases and/or decreases in the sensor or system sensitivity by a predetermined amount vis-a-vis a nominal level. Various schemes are disclosed for implementing this concept.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.