Infrared intrustion detector
US5045702A · kind A · utility
31Cited by
12References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 22, 1989 |
| Grant date | Sep 3, 1991 |
| Priority date | — |
| Expiry date | Nov 22, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S250/01
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A passive infrared intrusion detector provides improved intruder detection while using a single signal evaluation channel. Pyroelectric sensor element configurations include a diamond pattern with differentially opposed pairs of elements of opposite polarization connected in series for increased coverage and sensitivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.