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Information display device capable of increasing detection speed and detection accuracy of input coordinates on display screen by detecting movement amount of electronic pen
Information display device capable of increasing detection speed and detection accuracy of input coordinates on display screen by detecting movement amount of electronic pen
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机译:通过检测电子笔的移动量,能够提高显示画面上的输入坐标的检测速度和检测精度的信息显示装置
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摘要
There is provided an information display device in which speed of detecting input coordinates on a display screen is increased. A coordinate detection circuit 7 detects indication coordinates at a tip end of an electronic pen 6 based on an induction voltage induced at a detection electrode of the electronic pen 6 in scanning a row electrode G and a column electrode S. A coordinate output circuit 17 obtains indication coordinates at the tip end of the electronic pen 6 based on a movement amount detection signal from a movement amount detecting section 20 of the electronic pen 6. A coordinate signal generating circuit 18 outputs an x-coordinate signal and a y-coordinate signal by combining the indication coordinates detected by the coordinate detection circuit 7 and the indication coordinates obtained by the coordinate output circuit 17. Thus by filling an interval between the indication coordinates detected by the coordinate detection circuit 7 with indication coordinates obtained by the coordinate output circuit 17, an apparent detection speed of the input coordinates can be increased.
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