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:
Mar. 09, 2021
Filed:
Jun. 18, 2019
Synaptics Incorporated, San Jose, CA (US);
Guozhong Shen, San Jose, CA (US);
Petr Shepelev, Campbell, CA (US);
Synaptics Incorporated, San Jose, CA (US);
Abstract
A processing system for an input device comprises drive circuitry configured to generate a fixed voltage for a common voltage electrode of the input device during a display update period, and generate a sensing signal for the common voltage electrode during an input sensing period, the sensing signal having a duty cycle and a mean value, wherein the duty cycle minimizes a difference between the fixed voltage and the mean value. An input device comprises one or more common voltage electrodes and a coupled processing system. The processing system is configured to drive the one or more common voltage electrodes with a fixed voltage during a display update period, and a sensing signal during an input sensing period. The sensing signal has a duty cycle and a mean value, the duty cycle configured to minimize a difference between the mean value and the fixed voltage.
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