Particle concentration sensing method and portable electronic apparatus applying the particle concentration sensing method
AssigneePixart Imaging Inc.
InventorGuo-Zhen Wang
Life of this patent
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Abstract
A portable electronic apparatus can sense particle concentration, comprising: a motion detector, configured to detect a motion of the portable electronic apparatus; a first light source, configured to emit first light, wherein first scattered light is generated while the first light emitting particles in air; a light sensor, configured to sense the first scattered light; and a processor, configured to calculate a first particle concentration based on the motion and the first scattered light sensed by the light sensor. Via such apparatus, the particle concentration can be calculated without a fan, and the accuracy for calculating particle concentration can be increased if more than one light source is employed.
Claims21
A portable electronic apparatus can sense particle concentration, comprising:
- a motion detector, configured to detect a motion of the portable electronic apparatus;
- a first light source, configured to emit first light, wherein first scattered light is generated while the first light emitting particles in air;
- a light sensor, configured to sense the first scattered light;
- and
- a processor, configured to calculate a first particle concentration based on the motion and the first scattered light sensed by the light sensor.
A particle concentration sensing method, applied to a portable electronic apparatus, comprising:
- (a) generating first light;
- (b) sensing first scattered light, wherein the first scattered light is generated while the first light emitting particles in air;
- and
- (c) calculating a first particle concentration based on the motion and the first scattered light sensed by the light sensor.
(canceled)
Dependencies are inferred from the claim text.