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:
Oct. 27, 2020
Filed:
Aug. 07, 2018
Cambridge Touch Technologies Ltd., Cambridge, GB;
Mojtaba Bagheri, Cambridge, GB;
Babak Bastani, Royston, GB;
Cambridge Touch Technologies Ltd., Cambridge, GB;
Abstract
A device () is provided for processing signals () from a projected capacitance touch panel (), the touch panel () including a layer of piezoelectric material () disposed between a plurality of first electrodes () and at least one second electrode (). The device is configured, in response to receiving input signals () from a given first electrode (), to generate a pressure signal () indicative of a pressure applied to the touch panel () proximate to the given first electrode () and a capacitance signal () indicative of a capacitance of the given first electrode (). The device () includes an amplifier () configured to generate an amplified signal () based on the input signals (). The device () also includes an analog-to-digital converter () configured to be synchronised () with the capacitance signal (), and to generate the pressure signal () by sampling the amplified signal () at times corresponding to the amplitude of the capacitance signal () being substantially equal to a ground, common mode or minimum value.