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. 05, 2016
Filed:
Oct. 05, 2012
Ams Ag, Unterpremstätten, AT;
Pramod Singnurkar, Graz, AT;
ams AG, Unterpremstätten, AT;
Abstract
A touch sensing system comprises a signal generator (Tx), which is configured to provide an AC signal, a signal receiver (Rx), which is configured to perform a signal detection, a first transmitter node (T), which is connected to the signal generator (Tx) in a switchable fashion, a second transmitter node (T), which is connected to the first transmitter node (T) in a switchable fashion and to a reference potential terminal (GND) in a switchable fashion, a first receiver node (R), which is connected to the signal receiver (Rx) in a switchable fashion and to the first transmitter node (T) in a switchable fashion, a second receiver node (R), which is connected to the first receiver node (R) in a switchable fashion and to the reference potential terminal (GND) in a switchable fashion, a first electrode (E), which is connected to the second transmitter node (T) in a switchable fashion, a second electrode (E), which is connected to the second receiver node (R) in a switchable fashion, and a capacitance measurement circuit (CMC). The capacitance measurement circuit (CMC) is coupled to the first transmitter node (T) and/or the second transmitter node (T), coupled to the first receiver node (R) and/or the second receiver node (R), and configured to measure respective capacitance values at the first transmitter node (T) or the second transmitter node (T) and at the first receiver node (R) or the second receiver node (R).