Patent · US Expired

Supervised PIR motion-detection system

US5382944A · kind A · utility

11Cited by
7References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 5, 1992
Grant dateJan 17, 1995
Priority date
Expiry dateAug 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.