The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 29, 2016
Filed:
May. 08, 2008
J. Douglas Moore, Salt Lake City, UT (US);
Jared G. Bytheway, Sandy, UT (US);
Dale J. Carter, Orem, UT (US);
David Taylor, West Jordan, UT (US);
J. Douglas Moore, Salt Lake City, UT (US);
Jared G. Bytheway, Sandy, UT (US);
Dale J. Carter, Orem, UT (US);
David Taylor, West Jordan, UT (US);
CIRQUE CORPORATION, Salt Lake City, UT (US);
Abstract
A capacitance sensitive proximity and touch-sensitive detection device having an XY electrode grid sensor, wherein a compensation matrix is created when the capacitance sensitive touchpad is installed within a PIN Entry Device (PED), wherein the compensation matrix enables the capacitance sensitive touchpad to compensate and be balanced for the operating environment of the PED, and wherein physical keys of a keypad can be also be individually identified as an actuated key by using a unique 'key profile' for each key, and wherein the insertion of a foreign conductive and/or dielectric material such as an intruding sensor in proximity of the XY electrode grid sensor of the touchpad will cause an imbalance in the electrodes on the capacitance sensitive proximity and touch-sensitive detection device, thereby alerting detection circuitry that tampering has occurred with the PED.