TOUCH SCREEN REGION SELECTING METHOD

• US 20100060598A1
• Filed: 06/30/2009
• Published: 03/11/2010
• Est. Priority Date: 09/10/2008
• Status: Active Grant

• Current Assignee: Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. (Hon Hai Precision Industry Co., Ltd.), Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. (Hon Hai Precision Industry Co., Ltd.), Hon Hai Precision Industry Co., Ltd.
• Inventors: ZHANG, YU, LIN, TAY-YANG
• Granted Patent: US 8,248,384 B2
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text

Abstract

A touch screen region selecting method implemented by a central processing unit (CPU), wherein the touch screen senses and recognizes tracks of two line-drawing touches simultaneously performed thereon. The method comprises: receiving the two line-drawing touches and displaying two lines via the CPU, identifying start points and terminal points of the two lines via the CPU, connecting the start point and the terminal point of each line to generate a first line and a second line respectively via the CPU, connecting the start points of the two lines to generate a third line, and connecting the terminal points of the two lines to generate a fourth line via the CPU, identifying a region framed by the first line, the second line, the third line, and the fourth line, obtaining displayed contents, and performing an operation for the displayed contents via the CPU.

Claims

1. A region selecting method for a touch screen implemented by a central processing unit (CPU), the method comprising:

providing the touch screen that senses and recognizes tracks of two line-drawing operations simultaneously imposed thereon;

receiving the two line-drawing touches and displaying two lines according to the tracks of the received two line-drawing touches on the touch screen via the CPU;

identifying start points and terminal points of the two lines via the CPU;

connecting the start point and the terminal point of each line to generate a first line and a second line respectively via the CPU;

connecting the start points of the two lines to generate a third line via the CPU, and connecting the terminal points of the two lines to generate a fourth line via the CPU;

identifying a region framed by the first line, the second line, the third line, and the fourth line, obtaining displayed contents in the framed region, and performing an operation for the displayed contents in the framed region according to a user input via the CPU.

2. The method as described in claim 1, wherein the touch screen is a multi-point touch screen which is capable of sensing and recognizing a plurality of touches simultaneously performed on the touch screen and associating the touches with predetermined operations.

3. The method as described in claim 1, wherein the first line, the second line, the third line, and the fourth line are straight lines.

4. The method as described in claim 1, wherein the first line, the second line, the third line, and the fourth line are predetermined curves.