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PRESSURE AND POSITION SENSING POINTING DEVICES AND METHODS

  • US 20130050078A1
  • Filed: 08/29/2011
  • Published: 02/28/2013
  • Est. Priority Date: 08/29/2011
  • Status: Active Grant
First Claim
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1. A pointing device for providing an output direction and an output velocity to computer system to control a user interface of the computer system, comprising:

  • a contact surface mounted to a support;

    a camera positioned beneath the contact surface and configured to capture an image of a lower side of the contact surface and an object that is in contact with an upper side of the contact surface;

    a velocity calculation unit configured to calculate the output velocity based on a size of the object within the image; and

    a direction calculation unit configured to calculate the output direction based on a position of the object within the image.

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