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:
Jul. 16, 2019
Filed:
Mar. 15, 2016
Parade Technologies Ltd., Santa Clara, CA (US);
Ross Martin Fosler, Snohomish, WA (US);
PARADE TECHNOLOGIES LTD., Santa Clara, CA (US);
Abstract
A method of processing raw response signals for capacitive sense arrays is performed at an electronic device having one or more processors and a capacitive sense array. The process receives a raw response signal from the capacitive sense array. The process computes an offset signal that represents an average baseline value of the raw response signal over a period of time and filters the raw response signal to a limited frequency band, thereby forming a bandwidth limited signal. The process also computes a differential signal as the difference between the offset signal and the bandwidth limited signal and uses the differential signal to detect an object proximate to the capacitive sense array.