US 12,554,342 B2Granted

Touch pad and computer

AssigneeWacom Co., Ltd.

InventorJun Kadowaki

Life of this patent

Estimating the term…

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Abstract

A touch pad is configured to receive input operations using objects including a finger and a stylus. The touch pad includes a touch screen including a touch detection surface that serves as a button and as a position detection region for detecting positions of the objects. The touch pad includes an integrated circuit having an object detection function of detecting the positions of the objects on the touch detection surface and a button function of detecting a press state of the button based on a force applied to the touch detection surface. The touch pad includes a button function stop unit configured to cause, according to an operation state of the stylus or according to a setting related to an input operation of the stylus, the integrated circuit to stop outputting a button press state value indicative of the press state detected by the button function.

Claims13

Dependent claims

An integrated circuit for a touch pad, the touch pad configured to receive input operations by objects including a finger and a stylus, and the touch pad including a touch detection surface that serves as a position detection region for detecting the stylus, the integrated circuit configured to:

determine whether or not the stylus is in contact with the touch detection surface;
determine that the stylus is in contact with the touch detection surface responsive to a pen pressure value of the stylus exceeding a threshold value;
in case the stylus is used to perform the input operation, output coordinates indicating a position of the stylus;
in case the stylus is not used to perform the input operation, output coordinates indicating a position of the finger;
and
switch between outputting the coordinates of the position of the stylus and outputting the coordinates of the position of the finger according to an operation state of the stylus.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/917,648Filed 16 Oct 2024 · continuation
Priority: 12 Mar 2019
Published: US 2025/0036221 A130 Jan 2025
Granted: 17 Feb 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

G06F 3/03547
With detection of two-dimensional [2D] relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D…
G06F 3/016
Input arrangements or combined input and output arrangements for interaction between user and computer: input arrangements with force or tactile…
G06F 3/03545
With detection of two-dimensional [2D] relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D…
G06F 3/04142
Using force sensing means to determine a position: the force sensing means being located peripherally, e.g. disposed at the corners or at the side…

Family

PCT/JP2019/010104Parent of this continuation · filed 12 Mar 2019
Application17/388,947Parent of this continuation · filed 29 Jul 2021
Application17/895,608Parent of this continuation · filed 25 Aug 2022
US 11,460,934 B2Parent of this continuation · filed 4 Oct 2022
Application18/462,974Parent of this continuation · filed 7 Sep 2023
US 11,782,530 B2Parent of this continuation · filed 10 Oct 2023
US 2025/0036221 A1Pre-grant publication · published 30 Jan 2025
US 12,147,617 B2Parent of this continuation
US 2021/0357045 A1Published application
US 2022/0404922 A1Published application
US 2023/0418395 A1Published application
US 12,554,342 B2This patent

From the US filing history. Foreign family members aren’t listed.