Touch device and control method thereof

Patent metadata

Field	Value
Publication number	US-12566522-B2
Application number	US-202519095809-A
Country	US
Kind code	B2
Filing date	Mar 31, 2025
Priority date	Apr 12, 2024
Publication date	Mar 3, 2026
Grant date	Mar 3, 2026

Abstract

A touch device and a touch device control method are provided. The touch device includes: a touch screen has a button body placement portion and a touch control portion located outside the button body placement portion; a capacitive button disposed on the touch screen and in the button body placement portion; a sensing device configured to sense first data at the button body placement portion and second data at the touch control portion; a computing unit configured to calculate a parameter adjustment amount for balancing a signal-to-noise ratio between the button body placement portion and the touch control portion based on the first data and the second data; and a balancing unit configured to regulate the touch screen according to the parameter adjustment amount.

First claim

What is claimed is:

1 . A touch device, comprising:
a touch screen having a button body placement portion and a touch control portion located outside the button body placement portion; a capacitive button disposed on the touch screen and in the button body placement portion; a sensing device connected to the touch screen and the capacitive button and configured to sense first data at the button body placement portion and second data at the touch control portion; a computing unit connected to the sensing device and the touch screen and configured to calculate a parameter adjustment amount for balancing a signal-to-noise ratio of an output signal of the button body placement portion and a signal-to-noise ratio of an output signal of the touch control portion based on the first data, the second data, and an output signal of the touch screen; and a balancing unit connected to the computing unit and the touch screen and configured to regulate the touch screen according to the parameter adjustment amount.

2 . The touch device according to claim 1 , wherein the capacitive button comprises a contact portion, and when the capacitive button is pressed down, the contact portion is electrically connected to the touch screen.

3 . The touch device according to claim 2 , wherein the capacitive button further comprises an elastic portion, the contact portion is connected to the elastic portion and is located at a lower edge of the elastic portion, and when the capacitive button is pressed down, the elastic portion is compressed to electrically connect the contact portion to the touch screen.

4 . The touch device according to claim 3 , wherein the elastic portion is made of a conductive material, and an elastic portion charge of the elastic portion changes with a deformation quantity of the elastic portion, and the first data sensed by the sensing device further comprises elastic portion charge state data of a change amount in the elastic portion charge; and
the computing unit is further configured to calculate the parameter adjustment amount according to the first data comprising the elastic portion charge state data.

5 . The touch device according to claim 1 , wherein the computing unit is further configured to calculate a signal output threshold value according to the first data;
the computing unit is further configured to determine whether the output signal generated at the button body placement portion is greater than the signal output threshold value; when the output signal is greater than the signal output threshold value, the touch screen receives the output signal.

6 . A touch device control method, comprising:
using a touch screen provided with a capacitive button, the touch screen having a button body placement portion for placing the capacitive button and a touch control portion located outside the button body placement portion; using a sensing device to sense first data at the button body placement portion and second data at the touch control portion in real time; using a computing unit to calculate a parameter adjustment amount for balancing a signal-to-noise ratio of an output signal of the button body placement portion and a signal-to-noise ratio of an output signal of the touch control portion based on the first data and the second data; and using a balancing unit to regulate the touch screen according to the parameter adjustment amount.

7 . The touch device control method according to claim 6 , further comprising:
pressing the capacitive button to electrically connect a contact portion of the capacitive button and the touch screen.

8 . The touch device control method according to claim 7 , further comprising:
pressing the capacitive button to compress an elastic portion of the capacitive button so that the contact portion located at a lower edge of the elastic portion is electrically connect to the touch screen.

9 . The touch device control method according to claim 8 , further comprising:
using the sensing device to sense the first data comprising elastic portion charge state data of the elastic portion that changes with a deformation quantity of the elastic portion; using the computing unit to calculate the parameter adjustment amount according to the first data comprising the elastic portion charge state data.

10 . The touch device control method according to claim 6 , further comprising:
using the computing unit to calculate a signal output threshold value according to the first data; and using the computing unit to determine whether the output signal generated at the button body placement portion is greater than the signal output threshold value; using the touch screen to receive the output signal when the output signal is greater than the signal output threshold value.

Assignees

• Silicon Integrated Systems Corp

Inventors

• Lin Yung Jui
• Shih Wei-En
• Chen Keng-Nan

Classifications

• G06F3/04847

  Interaction techniques to control parameter settings, e.g. interaction with sliders or dials · CPC title

• G06F3/0447

  Position sensing using the local deformation of sensor cells · CPC title

• G06F3/044

  by capacitive means · CPC title

• G06F3/0393

  Accessories for touch pads or touch screens, e.g. mechanical guides added to touch screens for drawing straight lines, hard keys overlaying touch screens or touch pads · CPC title

• G06F3/04184 Primary

  Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally · CPC title