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:
Dec. 06, 2016
Filed:
Apr. 17, 2012
Ulrich Backes, Radolfzell, DE;
Ulrich Backes, Radolfzell, DE;
Abstract
An input device () has a contact plate () having a contact surface () and being least partially coated with an electrical resistive layer () on a surface opposite the contact surface (). The electrical resistive layer () has at least two electrically conducting contacts (). A measuring circuit () is provided for measuring a sensing capacitor () formed by the electrical resistive layer () and an electrostatically chargeable object () arranged at a contact position on the contact surface (). Further, a processing unit is provided for determining coordinates (X, Y) of the contact position of the electrostatically chargeable object () on the contact surface () by means of a determination of the ohmic resistances (R) between the contact position of the electrostatically chargeable object () and the electrically conducting contacts.