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:
Apr. 28, 2015
Filed:
Oct. 13, 2009
Jim Groth, Poplar Grove, IL (US);
Christopher Marszalek, Plainfield, IL (US);
Daniel Horvath, Marseilles, IL (US);
Kerry Berland, Chicago, IL (US);
Try Ty, Chicago, IL (US);
Mark Kmiecik, Chicago, IL (US);
Jim Groth, Poplar Grove, IL (US);
Christopher Marszalek, Plainfield, IL (US);
Daniel Horvath, Marseilles, IL (US);
Kerry Berland, Chicago, IL (US);
Try Ty, Chicago, IL (US);
Mark Kmiecik, Chicago, IL (US);
Sennco Solutions, Inc., Plainfield, IL (US);
Abstract
A circuit, a system and/or a method detect a passive electrical connection and/or an active electrical connection between an electrical device and a power supply. An integrity of the electrical connection between the electrical device and the power supply is monitored to determine if the electrical device may have access to power and/or to determine if the electrical device may be secure while on display. A high frequency AC signal is modulated onto a positive power rail between the electrical device and the power supply. Capacitance circuitry of the electrical device may remove the high frequency signal from the positive power rail. An absence of the high frequency signal on the positive power rail indicates that the electrical connection exists between the electrical device and the power supply. A presence of the high frequency signal on the positive power rail indicates that the electrical connection does not exist between the electrical device and the power supply.