Active infrared sensor
US9489812B2 · kind B2 · utility
4Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2014 |
| Grant date | Nov 8, 2016 |
| Priority date | — |
| Expiry date | Nov 17, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/187
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Methods and systems are described for monitoring a monitored space. An example computer-implemented method for monitoring a monitored space includes periodically emitting with an active infrared sensor a modulated infrared signal into a monitored space being monitored by a home automation system, receiving with the active infrared sensor the modulated infrared signals reflected from objects in the monitored space, and determining at least one of whether a number of objects in the monitored space have changed and whether any of the objects are moving.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.