Context discrimination using ambient light signal
US10656009B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2014 |
| Grant date | May 19, 2020 |
| Priority date | — |
| Expiry date | Feb 25, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2560/0242
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system is configured to discriminate amongst different environments based in part on characteristics of ambient light. Ambient light intensity is measured using a light-sensitive element configured to generate an output signal indicative of an intensity of light incident on the light-sensitive element. A controller is configured to obtain a set of ambient light measurements using the light-sensitive element, and determine that the measurements correspond to a particular ambient light profile. The particular ambient light profile can be one of multiple ambient light profiles that each correspond to a different environment and/or context.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.