Assignee: Peptek, Inc.

Location: Bethesda, MD
No. of patents: 4

Number	Title	Issue Date
4778951	Arrays of resistive elements for use in touch panels and for producing electric fields Selected touch point locating apparatus has an array of two or more electrical touch members constituted by impedance elements coupled to a circuit for causing electric current to flow through a selected touch point as the algebraic sum of separate curren...	10/18/1988
4198539	System for producing electric field with predetermined characteristics and edge terminations for resistance planes therefor A system is described for coupling two voltage sources to a resistive plane, surface or layer so as to produce a uniform electric field in said plane with orthogonal components along the two axes of the plane generated by the two voltage sources so that c...	04/15/1980
4129747	Human-machine interface apparatus A human-machine interface apparatus includes a first, or phase, surface with associated circuitry so devised that an alternating electrical field is created above the surface with its phase, relative to a fixed point on the surface, changing continuously ...	12/12/1978
4071691	Human-machine interface apparatus A human-machine interface apparatus includes a first, or phase, surface with associated circuitry so devised that an alternating electrical field is created above the surface with its phase, relative to a fixed point on the surface, changing continuously ...	01/31/1978

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