Patent · US Active

Indoor/outdoor detection

US8592744B2 · kind B2 · utility

5Cited by

39References

22Claims

0Family size

Assignee

NXP B.V. · NL

Inventors

Rob Van Dalen · Veghel, NL
Sergio Masferrer Oncala · Foios, ES

Key dates

Filing date	Jul 25, 2008
Grant date	Nov 26, 2013
Priority date	—
Expiry date	Dec 5, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02D30/70
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A light sensor is used to detect ambient light conditions. According to an example embodiment, a light sensor (112) detects color temperature and, in some instances, intensity characteristics of ambient light (120, 130, 140) in an environment and uses these detected characteristics (116) to determine the location of the sensor relative to natural and artificial light sources. This location determination is used to selectively operate circuits in a device such as a hand-held telephone, computer device or personal data assistant (PDA).

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