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:
Nov. 13, 2018
Filed:
Oct. 07, 2013
Atmel Corporation, San Jose, CA (US);
Martin John Simmons, Hamble, GB;
Atmel Corporation, Chandler, AZ (US);
Abstract
A method may include controlling a first switch to charge a reference capacitor to a first voltage level by applying a first voltage. The method may also include receiving a first analog signal from a touch sensor electrode at an input of an Analog to Digital Converter (ADC) and converting the first analog signal to a first digital value provided at an output of the ADC. In certain embodiments, the method may additionally include controlling a second switch to charge the reference capacitor to a second voltage level by applying a second voltage, receiving a second analog signal from the touch sensor electrode at the input to the ADC, and converting the second analog signal to a second digital value at the output of the ADC. The method may further include detecting a touch to the touch sensor device based on the first digital value.