Active infrared presence sensor
US6710346B2 · kind B2 · utility
13Cited by
2References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2001 |
| Grant date | Mar 23, 2004 |
| Priority date | — |
| Expiry date | Mar 8, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/497
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A presence detector includes an optical emitter for emitting optical radiation, an optical detector for detecting a presence of an object based on receiving the optical radiation, and a microcontroller for controlling the optical emitter and processing the optical detector output, such that a range adjustment and range hysteresis based on the object are provided by software in the microcontroller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.