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:
Aug. 27, 2019
Filed:
Jun. 30, 2016
Synaptics Incorporated, San Jose, CA (US);
Shubha Ramakrishnan, San Jose, CA (US);
Adam L. Schwartz, Redwood City, CA (US);
SYNAPTICS INCORPORATED, San Jose, CA (US);
Abstract
An example processing system for a capacitive input device includes sensor circuitry configured to drive a plurality of sensor electrodes with capacitive sensing signals over time to acquire capacitive values of a plurality of capacitive frames. The processing system includes a determination module configured to analyze a first capacitive frame of the plurality of capacitive frames to identify a force event by detecting that a rate of change of a first capacitive value in the first capacitive frame exceeds a first threshold. The determination module is configured to determine a change in capacitance between the first capacitive value and a baseline value, and analyze a second capacitive frame of the plurality of capacitive frames acquired after the force event to adjust the baseline value responsive to a difference between the baseline value and a second capacitive value in the second capacitive frame falling below a second threshold.