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CAPACITIVE MOTION DETECTION DEVICE AND INPUT DEVICE USING THE SAME

  • US 20090284496A1
  • Filed: 07/29/2009
  • Published: 11/19/2009
  • Est. Priority Date: 01/31/2007
  • Status: Active Grant
First Claim
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1. A capacitive motion detection device comprising:

  • a device main body;

    two or more detection electrode/drive electrode pairs in each of which a capacitance is formed between a detection electrode and a drive electrode, the detection electrode/drive electrode pairs being provided at detection positions of the device main body;

    detecting means for detecting motions of an object to be detected in two or more axis directions from a variation in a capacitance obtained in each of the detection electrode/drive electrode pairs, the detecting means including a drive circuit and a detection circuit; and

    switching means for changing connections to the detection electrode/drive electrode pairs,wherein the switching means can change a connection of at least one electrode of the detection electrode/drive electrode pairs to the drive circuit and the detection circuit.

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