Nxp B.v.

Sergio Masferrer Oncala

Rob Van Dalen

A light sensor is used to detect ambient light conditions. According to an example embodiment, a light sensor () detects color temperature and, in some instances, intensity characteristics of ambient light () in an environment and uses these detected characteristics () 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).

Indoor/outdoor detection

A light sensor arrangement is used to detect ambient light conditions. According to an example embodiment, a light detector arrangement (e.g.,) generates an output in response to light incident thereupon. An averaging-type circuit (e.g.,) samples the generated output for overlapping time intervals, and combines the sampled output to form a new output that characterizes the incident light. The overlapping time intervals(e.g.,-) are chosen such that the new output is generally flicker-free for incident light generated using one of at least two different power supply frequencies.

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Foios, Spain

Sergio Masferrer Oncala