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Gyroscope and input apparatus using the same

  • US 6,497,148 B1
  • Filed: 09/07/2000
  • Issued: 12/24/2002
  • Est. Priority Date: 09/08/1999
  • Status: Expired due to Fees
First Claim
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1. A gyroscope comprising;

  • a tuning fork including a vibration member, a base material disposed to face said vibration member, a driving mechanism to drive and vibrate the vibration member, a plurality of detection movable electrodes provided at a free end position on a surface of the vibration member, the surface being parallel to a displacement detection direction that is perpendicular to a vibration direction by the driving mechanism, wherein the plurality of detection movable electrodes has a width not less than a maximum amplitude of vibration of the vibration member generated in the displacement detection direction, and a plurality of detection fixed electrodes provided on the base material disposed to face to the plurality of detection movable electrodes and to form a capacitance between said plurality of detection fixed electrodes and said plurality of detection movable electrodes, wherein the plurality of detection fixed electrodes has a width not less than the maximum amplitude of vibration of the vibration member generated in the displacement detection direction and is electrically connected to each other.

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