DATA PROCESSING APPARATUS

• US 20090119613A1
• Filed: 05/30/2006
• Published: 05/07/2009
• Est. Priority Date: 07/05/2005
• Status: Abandoned Application

• Current Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Nakaya, Satosi
• Application Number:
  US11/994,912
• Publication Number:
  US 20090119613A1
• Time in Patent Office: Days
• US Class Current: 715/784
• 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
• CPC Class Codes: G09G 5/346 for systems having a bit-mapped display memory

Abstract

The present invention solves such a problem that a scroll parameter did not fit in with an operator intuition. A scroll controlling program is stored in the HDD 12. The scroll controlling program controls a CPU 14 to function as a controller that changes a scroll parameter (a scroll initial velocity Vs0 and a scroll duration T) in response to contact coordinate data outputted before termination of the contact with a touch panel 24. In this scroll controlling program, the scroll initial velocity Vs0 is defined by an operation expression “Vs0=F(Vtc)” using a change rate Vtc of the contact coordinate as a variable. In contrast, the scroll duration T is defined by an operation expression “T=G(L)” using a change amount L of the contact coordinate as a variable.

Claims

1. A data processing apparatus for controlling a display device to continue scrolling after termination of a contact between an object and a touch panel, comprising:

a controller which changes a scroll initial velocity depending on a rate of change of contact coordinates obtained from contact coordinate data outputted before the termination of the contact.

3. The data processing apparatus according to claim 1, wherein the controller proportionates the rate of change of the contact coordinates to the scroll initial velocity.

4. The data processing apparatus according to claim 1, wherein the controller keeps a scroll velocity at the scroll initial velocity.

5. The data processing apparatus according to claim 1, wherein the controller gradually decelerates a scroll velocity from the scroll initial velocity to a velocity that is smaller than the scroll initial velocity.

6. The data processing apparatus according to claim 1, wherein the controller gradually decelerates a scroll velocity from the scroll initial velocity to zero.

11. A navigation apparatus equipped with the data processing apparatus set forth in claim 1.

12. The data processing apparatus according to claim 1, wherein the controller keeps display path corresponding to contact path;

wherein the contact path is a line along which the contact coordinate moves; and

wherein the display path is a line along which an image moves, the image being displayed at display coordinate corresponding to an origin of the contact path.

2. (canceled)

7. (canceled)

8. (canceled)

9. (canceled)

10. (canceled)

13. A data processing apparatus for controlling a display device to continue scrolling after termination of a contact between an object and a touch panel, comprising:

a controller which changes a scroll duration depending on a rate of change of contact coordinates obtained from contact coordinate data outputted before the termination of the contact.

14. The data processing apparatus according to claim 13, wherein the controller proportionates the amount of change of the contact coordinates to the scroll duration.

15. The data processing apparatus according to claim 13, wherein the controller sets the scroll duration to zero if the amount of change of the contact coordinates is equal to or less than a predetermined value.

16. The data processing apparatus according to claim 13, wherein the controller keeps display path corresponding to contact path;

wherein the contact path is a line along which the contact coordinate moves; and

wherein the display path is a line along which an image moves, the image being displayed at display coordinate corresponding to an origin of the contact path.

17. A navigation apparatus equipped with the data processing apparatus set forth in claim 13.