DETECT AND DIFFERENTIATE TOUCHES FROM DIFFERENT SIZE CONDUCTIVE OBJECTS ON A CAPACITIVE BUTTON
Patent №
US 9,746,507
Granted
2017-08-29
Filed 2014
Owner
CYPRESS SEMICONDUCTOR CORPORATION
Lab
—
AI components
1
hardware
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
14468630
Apparatuses and methods of distinguishing between a finger and a stylus proximate to a touch surface are described. One apparatus includes a first circuit to obtain capacitance measurements of sense elements when a conductive object is proximate to a touch surface. The apparatus also includes a second circuit coupled to the first circuit. The second circuit is operable to detect whether the conductive object activates the first sense element, second sense element, or both, in view of the capacitance measurements. To distinguish between a stylus and a finger as the conductive object, the second circuit determines the conductive object as being the stylus when the second sense element is activated and the first sense element is not activated and determines the conductive object as being the finger when the first sense element and the second sense element are activated.
AI classification
Ownership
CYPRESS SEMICONDUCTOR CORPORATION
assignment · 400920976
Assignors
BHARATHAN, VIBHEESH
On an employer assignment, the assignors are typically the inventors.