Portable computer and related method for preventing input interruption by write-tracking an input region

• US 20030080946A1
• Filed: 02/19/2002
• Published: 05/01/2003
• Est. Priority Date: 10/25/2001
• Status: Active Grant

• Current Assignee: Compal Electronics Incorporated
• Original Assignee: Compal Electronics Incorporated
• Inventors: Chuang, Wei-Pin
• Granted Patent: US 6,831,631 B2
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/04186 Touch location disambiguation
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures

Abstract

A method is provided for a portable computer. The portable computer has a touch panel for sensing a position of pressure exerted by a user. The method includes setting an input region on the touch panel. When the user touches the touch panel after a previous touch, the method includes updating the position of the input region according to the relative displacement between the touches, and controlling the portable computer only according to pressure position inside the input region if the user simultaneously presses inside and outside the input region within the touch panel.

Claims

1. A method for a portable computer, said portable computer comprising a touch panel for sensing a position of pressure exerted by a user, said method comprising:

setting an input region on said touch panel, wherein said input region is smaller than said touch panel;

updating said position of said input region, when a user touches said touch panel after a previous touch, according to relative displacement between said touches; and

controlling said portable computer only according to pressure position inside said input region if said user simultaneously presses inside and outside said input region within said touch panel.

2. The method of claim 1, wherein when said user presses a reset region on said touch panel and outside said input region exceeding a predetermined times in a pre-selected time period, position of said input region is updated whereby said input region includes said reset region.

3. The method of claim 1, wherein said portable computer further comprises a screen for displaying images.

4. The method of claim 3, wherein said screen is a user interactive touch screen and said touch panel is set on said screen.

5. The method of claim 1, wherein said portable computer is a Personal Digital Assistant (PDA).

6. The method of claim 1, wherein shape of said input region is capable of being defined by said user.

7. A computer comprising:

a touch panel capable of generating a position signal corresponding to a pressurized position on said touch panel; and

a control module connecting to said touch panel for controlling said computer according to said position signal;

wherein when a user presses said touch panel twice at two different pressure positions within an input region of said touch panel, said control module updating said positions according to relative displacement between said two pressure positions, while said control module controls said computer only according to pressure position inside said input region if said user simultaneously presses inside and outside said input region within said touch panel.

8. The method of claim 7, wherein when said user presses a reset region on said touch panel and outside said input region exceeding a predetermined times in a pre-selected time period, position of said input region is updated whereby said input region includes said reset region

9. The method of claim 7, wherein said computer further comprises a screen for displaying images.

10. The method of claim 9, wherein said screen is a user interactive touch screen and said touch panel is set on said screen.

11. The method of claim 7, wherein said computer is a Personal Digital Assistant (PDA)

12. The method of claim 7, wherein shape of said input region is capable of being defined by said user.