TOUCH DISPLAY SCROLL CONTROL

• US 20100146387A1
• Filed: 12/05/2008
• Published: 06/10/2010
• Est. Priority Date: 12/05/2008
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Hoover, Paul Armistead
• Granted Patent: US 8,775,971 B2
• Time in Patent Office: Days
• US Class Current: 715/702
• CPC Class Codes: G06F 3/0485 Scrolling or panning
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text

Abstract

A scroll control recognizes a touch input directed to a selectable item while the selectable item is scrolling on a touch display. The scroll control determines if the selectable item is scrolling above a threshold velocity when the touch input directed to the selectable item is recognized. If the selectable item is determined to be scrolling above the threshold velocity, scrolling of the selectable item is stopped. If the selectable item is determined to be scrolling below the threshold velocity, the selectable item is selected.

Claims

1. A method of interpreting user input, the method comprising:

scrolling a selectable item on a touch display;

recognizing a touch input directed to the selectable item while the selectable item is scrolling on the touch display;

determining if the selectable item is scrolling above a threshold velocity when the touch input directed to the selectable item is recognized; and

stopping scrolling of the selectable item if the selectable item is determined to be scrolling above the threshold velocity or selecting the selectable item if the selectable item is determined to be scrolling below the threshold velocity.

2. The method of claim 1, further comprising displaying an alternative view of the selectable item upon selection of the selectable item.

3. The method of claim 1, where scrolling the selectable item on the touch display includes scrolling a list including a plurality of selectable items.

4. The method of claim 1, further comprising recognizing a swiping touch input and, responsive to the swiping touch input, scrolling the selectable item with a scrolling inertia on the touch display.

5. The method of claim 1, where the threshold velocity corresponds to the selectable item moving a distance equal to a dimension of the selectable item in a direction of scrolling in one second.

6. The method of claim 1, where the threshold velocity corresponds to the selectable item moving a distance equal to twice a dimension of the selectable item in a direction of scrolling in one second.

7. The method of claim 1, where the threshold velocity corresponds to the selectable item moving a distance equal to one half a dimension of the selectable item in a direction of scrolling in one second.

8. The method of claim 1, where the threshold velocity corresponds to the selectable item moving a distance equal to one quarter a dimension of the selectable item in a direction of scrolling in one second.

9. A surface computing device, comprising:

a display surface;

a rear projector configured to project images at the display surface;

a light source positioned to direct infrared reference light through the display surface;

a sensor operatively positioned to detect reference light reflected from a touch input on the display surface and back through the display surface;

a logic subsystem operatively coupled to the rear projector and the sensor; and

a data-holding subsystem holding instructions executable by the logic subsystem to;

instruct the rear projector to project a scrolling selectable item at the display surface in response to a swiping touch input;

receive an input from the sensor recognizing a touch input directed to the selectable item while the selectable item is scrolling;

instruct the rear projector to stop scrolling the selectable item if the selectable item is scrolling above a threshold velocity when the touch input directed to the selectable item is recognized; and

instruct the rear projector to display an alternative view of the selectable item if the selectable item is scrolling below the threshold velocity when the touch input directed to the selectable item is recognized.

10. The surface computing device of claim 9, where the selectable item is an application icon in a scrollable application-launching user interface.

11. A computing device, comprising:

a touch display;

a logic subsystem operatively coupled to the touch display; and

a data-holding subsystem holding instructions executable by the logic subsystem to;

scroll a selectable item on the touch display;

recognize a touch input directed to the selectable item while the selectable item is scrolling on the touch display;

obtain a dimension of the selectable item in a direction of scrolling;

apply a multiplier to the obtained dimension to find a threshold velocity;

stop scrolling the selectable item if the selectable item is scrolling above the threshold velocity when the touch input directed to the selectable item is recognized; and

select the selectable item if the selectable item is scrolling below the threshold velocity when the touch input directed to the selectable item is recognized.

12. The computing device of claim 11, where the data-holding subsystem further holds instructions executable by the logic subsystem to display an alternative view of the selectable item upon selection of the selectable item.

13. The computing device of claim 11, where the data-holding subsystem further holds instructions executable by the logic subsystem to scroll a list including a plurality of selectable items.

14. The computing device of claim 11, where the data-holding subsystem further holds instructions executable by the logic subsystem to recognize a swiping touch input and, responsive to the swiping touch input, scroll the selectable item with a scrolling inertia.

15. The computing device of claim 11, where the threshold velocity corresponds to the selectable item moving a distance equal to a dimension of the selectable item in a direction of scrolling in one second.

16. The computing device of claim 11, where the threshold velocity corresponds to the selectable item moving a distance equal to twice a dimension of the selectable item in a direction of scrolling in one second.

17. The computing device of claim 11, where the threshold velocity corresponds to the selectable item moving a distance equal to one half a dimension of the selectable item in a direction of scrolling in one second.

18. The computing device of claim 11, where the threshold velocity corresponds to the selectable item moving a distance equal to one quarter a dimension of the selectable item in a direction of scrolling in one second.

19. The computing device of claim 11, where the touch display includes a projection subsystem and a camera subsystem.

20. The computing device of claim 11, where the touch display includes a capacitive touch screen.