×

Horizontal capacitively sensed pointing device

  • US 8,125,445 B1
  • Filed: 01/25/2008
  • Issued: 02/28/2012
  • Est. Priority Date: 01/26/2007
  • Status: Active Grant
First Claim
Patent Images

1. A capacitive sensing mechanism for a pointing device, comprising:

  • an inner moveable ring operable to accept movement parallel to a plane; and

    an outer fixed ring substantially surrounding the inner moveable ring, wherein at least a portion of a surface for each of the inner moveable ring and the outer fixed ring is substantially perpendicular to said plane, and wherein a change in separation between said inner moveable ring and said outer fixed ring produces a change in capacitance of said sensing mechanism which forms a sensing signal for controlling the movement of the pointer.

View all claims
  • 6 Assignments
Timeline View
Assignment View
    ×
    ×