Patent · US Expired

System and method of automatic dynamic calibration for infrared sensing device

US6768103B2 · kind B2 · utility

36Cited by
31References
8Claims
0Family size

Assignee

Inventor

Key dates

Filing dateNov 17, 2003
Grant dateJul 27, 2004
Priority date—
Expiry dateNov 17, 2023

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG08C2201/42
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

A method for dynamically calibrating automatic infrared sensing devices in commercial use having an IR detector. Randomly reflected emitted IR radiation is detected by the IR detector which sends as IR detector output to a control module. The control module measures whether the detector output is too high or too low compared to a standard range of output values stored in the control module. An IR emitter value is then determined to maintain IR detector output within the standard range of values. This IR emitter input value is stored in the control module as a calibration standard until the calibration cycle.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.