Methods and apparatus for correcting input error in input apparatus

• US 10,254,951 B2
• Filed: 01/05/2012
• Issued: 04/09/2019
• Est. Priority Date: 01/05/2011
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Gwan-Hyung, Lee, Joo-Hoon
• Primary Examiner(s): Tung, David
• Application Number:
  US13/344,158
• Publication Number:
  US 20120169663A1
• Time in Patent Office: 2,651 Days
• CPC Class Codes: G06F 2203/04106 Multi-sensing digitiser, i.e. digitiser using at least two different sensing technologies simultaneously or alternatively, e.g. for detecting pen and finger, for saving power or for improving position detection
• CPC Class Codes: G06F 3/03545 Pens or stylus
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0418 for error correction or compensation, e.g. based on parallax, calibration or alignment
• CPC Class Codes: G06F 3/04186 Touch location disambiguation
• CPC Class Codes: G06F 3/044 by capacitive means
• CPC Class Codes: G06F 3/046 by electromagnetic means
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text

Abstract

Methods and apparatus are provided for correcting an input error in an input apparatus capable of touch inputs of a first touch input scheme and a second touch input scheme. Upon detecting a touch input of the first touch input scheme, an activity corresponding to the detected touch input is executed and activity execution information corresponding to the activity is stored. The activity executed in accordance with the touch input of the first touch input scheme is cancelled, when a touch input of the second touch input scheme occurs before the touch input of the first touch input scheme is released or before a preset timer expires. The first touch input scheme and the second touch input scheme are different schemes.

Claims

1. A method for detecting touch input, comprising:

detecting a first touch input of a first input scheme on a touch screen panel of an electronic device, wherein the first touch input scheme is a capacitive scheme;

displaying a first hand writing on the touch screen panel in accordance with the detected first touch input;

detecting a second touch input of a second touch input scheme different from the capacitive scheme on the touch screen panel while the detected first touch input of the capacitive scheme is maintained and the first hand writing is displayed, wherein the second touch input is made by a contact between a pen and the electronic device;

in response to the detected second input of the second touch input scheme on the touch screen panel, erasing the first hand writing from the touch screen panel;

displaying a second hand writing on the touch screen panel in accordance with the detected second touch input of the second touch input scheme; and

starting a timer that operates for a preset time in response to detecting the first touch input,

wherein the first hand writing displayed on the touch screen panel is erased while the hand writing activity is displayed on the touch screen panel when the second touch input occurs within the preset time after occurrence of the first touch input, and

wherein the first touch input and the second touch input are detected by different touch input schemes.

2. The method of claim 1, wherein the second touch input scheme is an ElectroMagnetic Resonance (EMR) touch input scheme.

3. The method of claim 1, wherein erasing the first hand writing comprises:

cancelling the first hand writing, when a detect event occurs from the touch input of the second touch input scheme before the timer expires.

4. An apparatus for detecting touch input, comprising:

an input unit including a touch screen panel for detecting a first touch input of a first input scheme on the touch screen panel and a pen input unit for detecting a second touch input of a second touch input scheme on the touch screen panel, wherein the first touch input scheme is a capacitive scheme; and

a controller for displaying a first hand writing on the touch screen panel in accordance with the detected first touch input, detecting a second touch input of a second touch input scheme on the touch screen panel while the detected first touch of the capacitive scheme is maintained and the first hand writing is displayed, in response to the detected second touch input of the second touch input scheme on the touch screen panel, erasing the first hand writing from the touch screen panel, displaying a second hand writing on the touch screen panel in accordance with the detected second touch input of the second touch input scheme, and starting a timer that operates for a preset time in response to detecting the first touch input,

wherein the first hand writing displayed on the touch screen panel is erased while the hand writing activity is displayed on the touch screen panel when the second touch input occurs within the preset time after occurrence of the first touch input, and

wherein the first touch input and the second touch input are detected by different touch input schemes.

5. The apparatus of claim 4, wherein the second touch input scheme is an ElectroMagnetic Resonance (EMR) touch input scheme.

6. The apparatus of claim 4, wherein the controller erases the first hand writing, when a detect event occurs from the touch input of the second touch input scheme before the timer expires.