Invention Grant
- Patent Title: Optical touch system and optical touch-position detection method
- Patent Title (中): 光学触摸系统和光学触摸位置检测方法
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Application No.: US13764270Application Date: 2013-02-11
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Publication No.: US08982101B2Publication Date: 2015-03-17
- Inventor: Chee-Chun Leung , Yun-Cheng Liu , Chien-Hung Lin
- Applicant: Quanta Computer Inc.
- Applicant Address: TW Guishan Dist., Taoyuan
- Assignee: Quanta Computer Inc.
- Current Assignee: Quanta Computer Inc.
- Current Assignee Address: TW Guishan Dist., Taoyuan
- Agency: McClure, Qualey & Rodack, LLP
- Priority: TW101109281A 20120319
- Main IPC: G06F3/042
- IPC: G06F3/042 ; G06F3/041
Abstract:
The invention provides an optical touch system, including a camera having a lens and an image sensor to capture an image of a touch object on the image sensor through the lens, an active light source for lighting the touch object, and a processor for determining the distance between the touch object and the camera according to the size of the image or the brightness of the image on the image sensor, determining the direction of the touch object according to the position of the image on the image sensor, and calculating the position of the touch object.
Public/Granted literature
- US20130241883A1 OPTICAL TOUCH SYSTEM AND OPTICAL TOUCH-POSITION DETECTION METHOD Public/Granted day:2013-09-19
Information query
