Invention Grant
US09013449B2 Optical touch system having a plurality of imaging devices for detecting a plurality of touch objects
有权
具有用于检测多个触摸物体的多个成像装置的光学触摸系统
- Patent Title: Optical touch system having a plurality of imaging devices for detecting a plurality of touch objects
- Patent Title (中): 具有用于检测多个触摸物体的多个成像装置的光学触摸系统
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Application No.: US13656632Application Date: 2012-10-19
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Publication No.: US09013449B2Publication Date: 2015-04-21
- Inventor: Tzung Min Su , Chih Hsin Lin
- Applicant: Pixart Imaging Inc.
- Applicant Address: TW Hsin-chu
- Assignee: Pixart Imaging Inc.
- Current Assignee: Pixart Imaging Inc.
- Current Assignee Address: TW Hsin-chu
- Agency: Bacon & Thomas PLLC
- Agent Juan Carlos A. Marquez
- Priority: TW100139038A 20111027
- Main IPC: G06F3/042
- IPC: G06F3/042
Abstract:
An optical touch system comprises a first imaging device configured to be directed toward a side surface of a target on a touch surface and a processing device. The first imaging device sequentially generates a first picture having an image of the target and a second picture having an image of the target. The computing device is configured to calculate a first dimension of the target using the first picture and a second dimension of the target using the second picture, and to determine whether the target is formed by one object or two objects by the first and second dimensions.
Public/Granted literature
- US20130106785A1 OPTICAL TOUCH SYSTEM Public/Granted day:2013-05-02
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