Patent ID: 8674331
Filing Date: 2014-03-18
Classification: G01S,H03K

Abstract:
1. An electronic apparatus comprising: a proximity sensor configured to emit light and to detect reflection of the emitted light; a light intensity control module configured to switch an intensity of the emitted light in a time-division manner between a first intensity level and a second intensity level which is higher than the first intensity level; a detection module configured to detect, based on an output signal of the proximity sensor while light of the first intensity level is being emitted, whether an object is present within a first detection distance from the electronic apparatus, and to detect, based on an output signal of the proximity sensor while light of the first intensity level is being emitted and an output signal of the proximity sensor while light of the second intensity level is being emitted, whether an object is present within a second detection distance from the electronic apparatus, the second detection distance being longer than the first detection distance; a control module configured to control an operation of the electronic apparatus, based on a detection result by the detection module; and an adjustment module configured to adjust the first and second intensity levels by monitoring the output the proximity sensor while varying the intensity of the emitted light.