TILTING TO SCROLL

• US 20140267441A1
• Filed: 03/18/2013
• Published: 09/18/2014
• Est. Priority Date: 03/18/2013
• Status: Active Grant

• Current Assignee: Meta Platforms, Inc. (f/k/a Facebook, Inc.)
• Original Assignee: Meta Platforms, Inc. (f/k/a Facebook, Inc.)
• Inventors: Matas, Michael, Amerige, Brian D.I.
• Granted Patent: US 9,459,705 B2
• Time in Patent Office: Days
• US Class Current: 345/688
• CPC Class Codes: G06F 3/017 Gesture based interaction, e.g. based on a set of recognized hand gestures interaction based on gestures traced on a digitiser G06F3/04883
• CPC Class Codes: G06F 3/0346 with detection of the device orientation or free movement in a 3D space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors
• CPC Class Codes: G06F 3/0485 Scrolling or panning
• CPC Class Codes: G06T 15/005 General purpose rendering architectures

Abstract

In one embodiment, a method includes sending information to display an image on a screen. A scroll range for the image may be determined based on dimensions of the image. An origin position and an initial tilt of a gyroscope may also be determined for the image. Tilt measurements associated with the presentation of the image may be received as the gyroscope detects changes in tilt. A progress parameter may be determined based on at least the scroll range, the origin position, and the initial tilt. A scrolling presentation of the image may then be rendered based on the progress parameter. The scrolling presentation of the image may be smoothed by applying an RK4 solver to the tilt measurements to eliminate jitter due to hand tremors. A virtual spring effect may also be applied to give the scrolling presentation a bouncy effect as the edge of the image is reached.

Claims

1. A method comprising:

by a computing device, sending information to display an image;

by the computing device, determining a scroll range for the image based on dimensions of the image;

by the computing device, determining an origin position and an initial tilt;

by the computing device, receiving tilt measurements associated with the presentation of the image;

by the computing device, determining a progress parameter based on at least the scroll range, the origin position, and the initial tilt; and

by the computing device, rendering a scrolling presentation of the image based on the progress parameter.

2. The method of claim 1, wherein a threshold for activating scrolling is satisfied by the tilt measurements.

3. The method of claim 1, wherein a threshold for activating scrolling is satisfied by the rotation rate.

4. The method of claim 1, further comprising:

smoothing the scrolling presentation of the image by applying an RK4 solver to the tilt measurements.

5. The method of claim 1, wherein the rendering the scrolling presentation of the image comprises applying a virtual spring effect to the image in relation to the origin position.

6. The method of claim 5, wherein the virtual spring effect causes the scrolling presentation of the image to appear to bounce when a limit of the scroll range is reached.

7. The method of claim 5, wherein the virtual spring effect causes the scrolling presentation of the image to appear to slow down as a limit of the scroll range is approached.

8. The method of claim 1, further comprising:

receiving input to re-calibrate the origin position; and

determining a new origin position based on the input.

9. The method of claim 1, wherein the tilt measurements are based upon motion captured by a gyroscope with respect to a single axis planar with respect to the presentation of the image.

10. The method of claim 1, wherein the tilt measurements are based upon motion captured by a gyroscope with respect to two axes orthogonal with respect to each other, both of which are planar with respect to the presentation of the image.

21. The method of claim 1, wherein the information to display the image comprises a visual hint indicating that scrolling may be performed on the image.

22. The method of claim 21, wherein the visual hint further indicates one or more directions in which scrolling is possible.

11. One or more computer-readable non-transitory storage media embodying software that is operable when executed to:

by a computing device, send information to display an image;

by the computing device, determine a scroll range for the image based on dimensions of the image;

by the computing device, determine an origin position and an initial tilt;

by the computing device, receive tilt measurements associated with the presentation of the image;

by the computing device, determine a progress parameter based on at least the scroll range, the origin position, and the initial tilt; and

by the computing device, render a scrolling presentation of the image based on the progress parameter.

14. The media of claim 11, wherein the tilt measurements are based upon motion captured by a gyroscope with respect to a single axis planar with respect to the presentation of the image.

15. The media of claim 11, wherein the tilt measurements are based upon motion captured by a gyroscope with respect to two axes orthogonal with respect to each other, both of which are planar with respect to the presentation of the image.

12-13. -13. (canceled)

16. A system comprising:

one or more processors; and

a memory coupled to the processors comprising instructions executable by the processors, the processors being operable when executing the instructions to;

send information to display an image;

determine a scroll range for the image based on dimensions of the image;

determine an origin position and an initial tilt;

receive tilt measurements associated with the presentation of the image;

determine a progress parameter based on at least the scroll range, the origin position, and the initial tilt; and

render a scrolling presentation of the image based on the progress parameter.

17. The system of claim 16, wherein the processors are further operable when executing the instructions to:

smooth the scrolling presentation of the image by applying an RK4 solver to the tilt measurements.

18. The system of claim 16, wherein the processors are further operable when executing the instructions to render the scrolling presentation of the image to apply a virtual spring effect to the image in relation to the origin position.

19. The system of claim 18, wherein the virtual spring effect causes the scrolling presentation of the image to appear to bounce when a limit of the scroll range is reached.

20. The system of claim 18, wherein the virtual spring effect causes the scrolling presentation of the image to appear to slow down as a limit of the scroll range is approached.