TOUCH-SENSITIVE DEVICE WITH PROTECTION FUNCTION AND PROTECTION METHOD

• US 20130169572A1
• Filed: 12/27/2012
• Published: 07/04/2013
• Est. Priority Date: 12/28/2011
• Status: Active Grant

• Current Assignee: Futaihua Industry (Shenzhen) Co., Ltd. (Hon Hai Precision Industry Co., Ltd.), Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Futaihua Industry (Shenzhen) Co., Ltd. (Hon Hai Precision Industry Co., Ltd.), Hon Hai Precision Industry Co., Ltd.
• Inventors: ZHANG, JUN, CHUANG, TSUNG-JEN, WONG, SHIH-FANG, ZHOU, JIAN-JUN
• Granted Patent: US 9,235,281 B2
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 21/316 by observing the pattern of computer usage, e.g. typical user behaviour
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures

Abstract

A method for protecting a touch-sensitive device includes: switching the touch-sensitive device from a normal mode to a protection mode when a preset operation is exerted; determining whether a touch operation is exerted after the touch-sensitive device enters the protection mode, and further determine whether a duration of the touch-sensitive device in the protection mode exceeds a preset time interval; comparing a touch size of the touch operation with a preset size when the duration of the touch-sensitive device in the protection mode exceeds the preset time interval; and generating an alarm signal when the touch size is less than the preset size. A related touch-sensitive device is also provided.

Claims

1. A touch-sensitive device with a protection function, comprising:

a touch-sensitive screen;

a storage unit; and

a processor comprising;

a protection mode control module to switch the touch-sensitive device from a normal mode to a protection mode when a preset operation is exerted on the touch-sensitive screen;

a determining module to determine whether a touch operation is exerted after the touch-sensitive device enters the protection mode, and further determine whether a duration of the touch-sensitive device in the protection mode exceeds a preset time interval;

a comparing module to compare a touch size of the touch operation with a preset size stored in the storage unit when the duration of the touch-sensitive device in the protection mode exceeds the preset time interval; and

a protection control module to generate an alarm signal when the touch size is less than the preset size.

2. The touch-sensitive device as described in claim 1, wherein the comparing module is further to compare a touch region of the touch operation with a preset region stored in the storage unit when the touch size is equal to or greater than the preset size, and the protection control module is further to generate the alarm signal when the touch size is equal to or greater than the preset size, and the touch region is not within the preset region.

3. The touch-sensitive device as described in claim 2, wherein the protection mode control module is further to switch the touch-sensitive device from the protection mode to the normal mode when the touch size is equal to or greater than the preset size, and the touch region is within the preset region.

4. The touch-sensitive device as described in claim 2, further comprising an updating module to update the preset touch size and touch region according to a touch size and touch region of the touch operation when the duration of the touch-sensitive device in the protection mode is less than or equal to the preset time interval.

5. A method for protecting a touch-sensitive device, the touch-sensitive device comprising a touch-sensitive screen, the method comprising:

switching the touch-sensitive device from a normal mode to a protection mode when a preset operation is exerted on the touch-sensitive screen;

determining whether a touch operation is exerted after the touch-sensitive device enters the protection mode, and further determining whether a duration of the touch-sensitive device in the protection mode exceeds a preset time interval;

comparing a touch size of the touch operation with a preset size when the duration of the touch-sensitive device in the protection mode exceeds the preset time interval; and

generating an alarm signal when the touch size is less than the preset size.

6. The method as described in claim 5, further comprising:

comparing a touch region of the touch operation with a preset region when the touch size is equal to or greater than the preset size; and

generating an alarm signal when the touch size is equal to or greater than the preset touch size, and the touch region is not within the preset touch region.

7. The method as described in claim 6, further comprising:

switching the touch-sensitive device from the protection mode to the normal mode when the touch size is equal to or greater than the preset size, and the touch region is within the preset region.

8. The method as described in claim 5, further comprising:

updating a preset size and region according to a touch size and touch region of the touch operation when the duration of the touch-sensitive device in the protection mode is less than or equal to the preset time interval.