System and method of automatic dynamic calibration for infrared sensing device
US6707030B1 · kind B1 · utility
33Cited by
34References
16Claims
0Family size
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Key dates
| Filing date | Oct 23, 2001 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | Feb 21, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08C2201/51
- 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 input value is then determined to maintain IR detector output within the standard output range of values. This IR emitter input value is stored in the control module as a calibration standard until the next calibration cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.