Invention Grant
- Patent Title: Displacement detection device and power saving method thereof
- Patent Title (中): 位移检测装置及其省电方法
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Application No.: US13916631Application Date: 2013-06-13
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Publication No.: US09541379B2Publication Date: 2017-01-10
- Inventor: Yu-Hao Huang , Ming-Tsan Kao , Sen-Huang Huang
- Applicant: PixArt Imaging Inc
- Applicant Address: TW Hsin-Chu County
- Assignee: PIXART IMAGING INC
- Current Assignee: PIXART IMAGING INC
- Current Assignee Address: TW Hsin-Chu County
- Agency: Hauptman Ham, LLP
- Priority: TW101127124A 20120727
- Main IPC: G06F3/033
- IPC: G06F3/033 ; G01B11/14 ; G06F3/03 ; G01B11/02
Abstract:
A displacement detection device includes an image sensor, a light source and a processing unit. The image sensor is configured to successively capture images. The light source provides light with an emission frequency and an emission duration for the image sensor in capturing the images. The processing unit is configured to calculate a displacement according to the images and to adjust both the emission frequency and the emission duration according to the displacement.
Public/Granted literature
- US20140028868A1 DISPLACEMENT DETECTION DEVICE AND POWER SAVING METHOD THEREOF Public/Granted day:2014-01-30
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