Invention Grant
- Patent Title: Input system with detection of coordinates
- Patent Title (中): 输入系统检测坐标
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Application No.: US10414775Application Date: 2003-04-14
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Publication No.: US07187366B2Publication Date: 2007-03-06
- Inventor: Chih-Cheng Chen
- Applicant: Chih-Cheng Chen
- Applicant Address: TW Tainan Hsien
- Assignee: Super Elite Technology Co., Ltd.
- Current Assignee: Super Elite Technology Co., Ltd.
- Current Assignee Address: TW Tainan Hsien
- Main IPC: G09G5/00
- IPC: G09G5/00

Abstract:
A coordinate detection input system includes two first elongated electric conductors with an insulation grounding device respectively, a control circuit and two elongated electric conductors with another insulation grounding device respectively. The two elongated electric conductors are disposed correspond to X-coordinate and Y-coordinate of the input system. The control circuit further includes a microprocessor, a field induced voltage transducer, an analog/digital converter and a signal transmission device. The elongated electric conductors are electrically connected to the microprocessor to induce electromagnetic fields sequentially every time after a zero checking has been done by the microprocessor. The field induced voltage transducer induces voltage in the magnetic field once the pulse current is operated to pass through any one of the electric conductors. The analog/digital converter transforms the induced voltages as coordinates and position of the field induced voltage transducer can be figured out accordingly.
Public/Granted literature
- US20040201571A1 Input system with detection of coordinates Public/Granted day:2004-10-14
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