Patent · US Active

Dynamic touch sensor scanning for false border touch input detection

US9489097B2 · kind B2 · utility

4Cited by

3References

15Claims

0Family size

Assignees

SONY GROUP CORPORATION · JP
Sony Mobile Communications Inc. · JP

Inventors

Magnus Johansson · Luleå, SE
Markus Andreasson · Lund, SE
Olivier Moliner · Lund, SE
Andreas Sandblad · Lund, SE
Ola Thörn · Lund, SE
Magnus Midholt · Lund, SE

Key dates

Filing date	Jan 23, 2015
Grant date	Nov 8, 2016
Priority date	—
Expiry date	Feb 19, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG06F3/0446
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A device, having a touch screen display, performs a mutual capacitance scan of rows and columns of an array of capacitive touch sensors associated with the touch screen display. The device selects a subset of the rows, and a subset of the columns, of the array of capacitive touch sensors, and performs a self capacitance scan of the selected subset of the rows, and the selected subset of the columns, of the array of capacitive touch sensors based on results of the mutual capacitance scan. The device identifies an accidental or false touch input on the touch screen display based on results of the self capacitance scan.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.