Invention Grant
US09213448B2 Positioning module, optical touch system and method of calculating a coordinate of a touch medium
有权
定位模块，光学触摸系统以及计算触摸媒体坐标的方法
- Patent Title: Positioning module, optical touch system and method of calculating a coordinate of a touch medium
- Patent Title (中): 定位模块，光学触摸系统以及计算触摸媒体坐标的方法
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Application No.: US14097257Application Date: 2013-12-05
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Publication No.: US09213448B2Publication Date: 2015-12-15
- Inventor: Yu-Chia Lin , Chun-Yi Lu , Chun-Sheng Lin , Yu-Hsiang Huang , Hsin-Chi Cheng
- Applicant: PixArt Imaging Inc.
- 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
- Priority: TW101144727A 20121129
- Main IPC: G06F3/042
- IPC: G06F3/042
Abstract:
A method of calculating a coordinate of a touch medium is disclosed in the present invention. The method includes obtaining a first image to determine whether the first image overlaps a first threshold, generating a first interceptive boundary when the first image overlaps the first threshold, obtaining a second image to generate a second interceptive boundary by overlap of the second image and a second threshold, determining whether the first interceptive boundary overlaps the second interceptive boundary, and confirming a status of the touch medium according to determination.
Public/Granted literature
- US20140146019A1 POSITIONING MODULE, OPTICAL TOUCH SYSTEM AND METHOD OF CALCULATING A COORDINATE OF A TOUCH MEDIUM Public/Granted day:2014-05-29
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