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CURSOR VELOCITY BEING MADE PROPORTIONAL TO DISPLACEMENT IN A CAPACITANCE-SENSITIVE INPUT DEVICE

  • US 20070200823A1
  • Filed: 03/29/2007
  • Published: 08/30/2007
  • Est. Priority Date: 02/09/2006
  • Status: Abandoned Application
First Claim
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1. A key cap touchpad useful for cursor manipulation and comprised of:

  • a key cap manufactured using a material that does not interfere with capacitance measurements of a touchpad;

    a capacitance sensitive key cap touchpad coupled to an underside of the key cap, to thereby perform proximity sensing of objects on or near a surface of the key cap;

    touchpad sensor circuitry coupled to the key cap touchpad; and

    firmware associated with the touchpad for cursor manipulation, wherein a distance that a finger is moved away from a center of the key cap determines velocity of an associated display cursor.

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