Invention Grant
- Patent Title: Optical touch system with brightness compensation and brightness compensation method thereof
- Patent Title (中): 具有亮度补偿和亮度补偿方法的光学触摸系统
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Application No.: US14052481Application Date: 2013-10-11
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Publication No.: US09354749B2Publication Date: 2016-05-31
- Inventor: Cheng-Nan Tsai , Tzung-Min Su , Chih-Hsin Lin , Yaun-Yu Peng , Yu-Chia Lin , Chuan-Ching Lin , Teng Wei Hsu
- 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: TW101139191A 20121024
- Main IPC: G06F3/042
- IPC: G06F3/042
Abstract:
There is provided an optical touch system including a touch surface, a plurality of image sensors and a plurality or compensation light sources, wherein each of the image sensors is adjacent to one of the compensation light sources. When one of the image sensors is capturing an image frame, the compensation light source not adjacent to and within a field of view of the image sensor which is capturing the image frame irradiates so as to compensate a brightness distribution of the image frame.
Public/Granted literature
- US20140111481A1 OPTICAL TOUCH SYSTEM WITH BRIGHTNESS COMPENSATION AND BRIGHTNESS COMPENSATION METHOD THEREOF Public/Granted day:2014-04-24
Information query
