Invention Grant
- Patent Title: Object detection calibration system of an optical touch screen and method thereof
- Patent Title (中): 光学触摸屏的物体检测校准系统及其方法
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Application No.: US12826612Application Date: 2010-06-29
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Publication No.: US08462137B2Publication Date: 2013-06-11
- Inventor: Chih-Hsin Lin , Tzung-Min Su , Cho-Yi Lin
- Applicant: Chih-Hsin Lin , Tzung-Min Su , Cho-Yi Lin
- Applicant Address: TW Science-Based Industrial Park, Hsin-Chu
- Assignee: PixArt Imaging Inc.
- Current Assignee: PixArt Imaging Inc.
- Current Assignee Address: TW Science-Based Industrial Park, Hsin-Chu
- Agent Winston Hsu; Scott Margo
- Main IPC: G06F3/042
- IPC: G06F3/042
Abstract:
A first image sensor captures a first image of a panel of a touch screen. The first image includes a first object, a second object, a first set of reference marks, a second set of reference marks, and a first boundary mark. The touch screen establishes relationships of relative positions among the first image sensor, the first object, the second object, and the reference marks according to positions of the first object, the second object, and the reference marks in the first image. And the touch screen calculates a relative position between the first image sensor and the panel according to the relationships of relative positions among the first image sensor, the first object, the second object, and the reference marks and relative positions among the first object, the second object, and the panel.
Public/Granted literature
- US20100328270A1 OBJECT DETECTION CALIBRATION SYSTEM OF AN OPTICAL TOUCH SCREEN AND METHOD THEREOF Public/Granted day:2010-12-30
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