Abstract: A controller is provided which includes a plurality of equally spaced sensors disposed symmetrically about an intersection of at least two orthogonal axes and spaced from such axes by a null zone which is concentric with such sensors. Control circuitry is electrically connected to the sensors to control movement of a controlled object in a direction which is related to the position of an operator's finger and the like relative to such intersection.
Type:
Grant
Filed:
September 15, 1992
Date of Patent:
November 22, 1994
Assignee:
Triax Technologies
Inventors:
Leonard R. Lefkowitz, Albert L. Armstrong, Jr.
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