Touch screen with random finger placement and rolling on screen to control the movement of information on-screen

• US 6,278,443 B1
• Filed: 04/30/1998
• Issued: 08/21/2001
• Est. Priority Date: 04/30/1998
• Status: Expired due to Term

• Current Assignee: Lenovo PC International Limited (Lenovo Group Ltd.)
• Original Assignee: International Business Machines Corporation
• Inventors: Dodson, John Paul, Amro, Hatim Yousef
• Primary Examiner(s): Shalwala, Bipin
• Assistant Examiner(s): Said, Mansour M.
• Application Number:
  US09/070,180
• Time in Patent Office: 1,209 Days
• Field of Search: 345/156, 345/157, 345/173, 345/159, 345/160, 345/172, 178/18.01, 178/18.03, 178/18.05, 178/18.06, 178/18.07
• US Class Current: 345/173
• CPC Class Codes: G06F 3/038 Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
• CPC Class Codes: G06F 3/0485 Scrolling or panning
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures

Abstract

A computer controlled display system with a user interactive touch screen is provided with an on-screen mouse to which user input may be applied by rolling of the touch finger to thereby move displayed information: the pointer or scrolled information on the screen. Means are provided which are activated by the touching of the screen at any random position selected by the user for enabling the detection of any rolling of said placed fingertip in an orthogonal direction. Also provided are means responsive to the detection of said rolling of said placed fingertip for moving said displayed data in an orthogonal direction corresponding to the direction of said rolling. The data moved may be the cursor or pointer or, when scrolling, the whole screen of data may be moved.

Claims

1. In a computer controlled display system with a user interactive touch display screen:

means for displaying data on said screen,

means for sensing the placement of a user'"'"'s fingertip adjacent said display screen,

means activated by said sensing means for enabling the detection of any rolling of said placed fingertip in an orthogonal direction, and

means responsive to the detection of said rolling of said placed fingertip for moving said displayed data in an orthogonal direction corresponding to the direction of said rolling.

2. The computer controlled display system of claim 1 wherein said moved displayed data is a screen cursor.

3. The computer controlled display system of claim 2 wherein said finger is placed at a display screen position remote from the position of said cursor on said display screen.

4. The computer controlled display system of claim 1 wherein said moved displayed data is data being scrolled in said orthogonal direction.

5. The computer controlled display system of claim 1 further including means activated by said sensing means for displaying an object indicating that said means for detecting said rolling is enabled.

6. The computer controlled display system of claim 5 wherein said displayed object is pad image enclosing said placed fingertip.

7. The computer controlled display system of claim 6 wherein:

said touch screen is pressure sensitive, and

further including means responsive to a subsequent pressing of said placed fingertip for interactive user input.

8. In a computer controlled display system having a user interactive touch screen, a method for user interactive movement of displayed data comprising:

displaying data on said screen, sensing the placement of a user'"'"'s fingertip adjacent said display screen,

in response to said sensing, enabling the detection of any rolling of said placed fingertip in an orthogonal direction, and

moving said displayed data in an orthogonal direction corresponding to the direction of said rolling in response to a detection of said rolling of said placed fingertip.

9. The method of claim 8 wherein said moved displayed data is a screen cursor.

10. The method of claim 9 wherein said finger is placed at a screen position remote from the position of said cursor.

11. The method of claim 8 wherein said moved displayed data is data being scrolled in said orthogonal direction.

12. The method of claim 8 further including the step of displaying an object indicating that said means for detecting said rolling is enabled in response to said sensing.

13. The method of claim 12 wherein said displayed object is pad image enclosing said placed fingertip.

14. The method of claim 13 wherein:

said touch screen is pressure sensitive, and

further including the step of enabling an interactive user input in response to a subsequent pressing of said placed fingertip.

15. A computer controlled display program having program code included on a computer readable medium for the interactive control of a user interactive touch screen comprising:

means for displaying data on said screen,

means for sensing the placement of a user'"'"'s fingertip adjacent said display screen,

means activated by said sensing means for enabling the detection of any rolling of said placed fingertip in an orthogonal direction, and

means responsive to the detection of said rolling of said placed fingertip for moving said displayed data in an orthogonal direction corresponding to the direction of said rolling.

16. The computer program of claim 15 wherein said moved displayed data is a screen cursor.

17. The computer program of claim 16 wherein said finger is placed at a screen position remote from the position of said cursor.

18. The computer program of claim 15 wherein said moved displayed data is data being scrolled in said orthogonal direction.

19. The computer program of claim 15 further including means responsive to said sensing means for displaying an object indicating that said means for detecting said rolling is enabled.

20. The computer program of claim 19 wherein said displayed object is pad image enclosing said placed fingertip.

21. The computer program of claim 20 wherein:

said touch screen is pressure sensitive, and

said program further includes means responsive to a subsequent pressing of said placed fingertip for interactive user input.