Touch apparatus and touch detection method thereof

Patent metadata

Field	Value
Publication number	US-2024264691-A1
Application number	US-202418632511-A
Country	US
Kind code	A1
Filing date	Apr 11, 2024
Priority date	Jun 12, 2019
Publication date	Aug 8, 2024
Grant date	—

Abstract

a touch device according to an exemplary embodiment includes: a plurality of touch electrodes; and a driver/receiver that applies driving signals, each having a frequency corresponding to a resonance frequency of a stylus pen, to the plurality of touch electrodes, and receives detection signals from the plurality of touch electrodes, wherein the driving signals may include a first driving signal and a second driving signal, each having a different phase.

First claim

What is claimed is:

1 . A touch device comprising: a plurality of electrodes; and a driver/receiver that applies driving signals, each having a frequency corresponding to a resonance frequency of a stylus pen, to the plurality of electrodes to resonate the stylus pen during a first section, and receives detection signals from the plurality of electrodes during the first section, the first section includes a plurality of first sub-sections during which the driving signals is applied and a plurality of second sub-sections, wherein the driving signals include a first driving signal and a second driving signal having different phase and the same frequency from the first driving signal, the driver/receiver applies the first driving signal to the plurality of electrodes during some of the first sub-section of the plurality of first sub-sections, and applies the second driving signal to the plurality of electrodes during the remaining of the first sub-section of the plurality of first sub-sections, and the driver/receiver receives the detection signals from the plurality of electrodes during the plurality of second sub-sections.

Assignees

• Hideep Inc

Inventors

• Kim Seyeob
• Kim Bonkee
• Cho Youngho

Classifications

• G06F3/0445

  using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer · CPC title

• G06F3/0383

  Signal control means within the pointing device · CPC title

• G06F3/03545

  Pens or stylus · CPC title

• G06F3/0441

  using active external devices, e.g. active pens, for receiving changes in electrical potential transmitted by the digitiser, e.g. tablet driving signals · CPC title

• G06F3/0416 Primary

  Control or interface arrangements specially adapted for digitisers · CPC title