Invention Grant
- Patent Title: Electromagnetic induction handwriting system and coordinate determining method thereof
- Patent Title (中): 电磁感应手写系统及其坐标确定方法
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Application No.: US12422201Application Date: 2009-04-10
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Publication No.: US08278572B2Publication Date: 2012-10-02
- Inventor: Chia-Jui Yeh
- Applicant: Chia-Jui Yeh
- Applicant Address: TW Hsinchu
- Assignee: Waltop International Corporation
- Current Assignee: Waltop International Corporation
- Current Assignee Address: TW Hsinchu
- Agency: Huffman Law Group, P.C.
- Priority: CN200910009116 20090213
- Main IPC: G06F3/046
- IPC: G06F3/046
Abstract:
The present invention discloses an electromagnetic induction handwriting system and its single side coordinate determining method for determining a coordinate of a stylus on a handwriting apparatus. The coordinate is computed by a first voltage, a second voltage, and a third voltage, where the first voltage equals the maximum detection voltage, the second voltage and the third voltage are obtained from two antennas, and both of the two antennas are arranged at the same side of the antenna that induces the maximum detection voltage.
Public/Granted literature
- US20100206644A1 Electromagnetic Induction Handwriting System and Coordinate Determining Method Thereof Public/Granted day:2010-08-19
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