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 hardwareG06F 3/0446G01R 1/00G01R 3/00G01R 5/00G01R 27/2605G06F 1/00G06F 3/00G06F 3/04166+2 more

AI classification

AI hardware0.93
Natural language0.01
Evolutionary computation0.00
Machine learning0.00
Knowledge representation0.00
Vision0.00
Speech0.00
Planning0.00

Ownership

CYPRESS SEMICONDUCTOR CORPORATION

assignment · 400920976

Assignors

BHARATHAN, VIBHEESH

On an employer assignment, the assignors are typically the inventors.

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