ANIMATED PAGE TURNING

• US 20120105464A1
• Filed: 05/31/2011
• Published: 05/03/2012
• Est. Priority Date: 10/27/2010
• Status: Active Grant

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: Google Inc. (Alphabet Inc.)
• Inventors: Franceus, Paul M.
• Granted Patent: US 9,911,221 B2
• Time in Patent Office: Days
• US Class Current: 345/581
• CPC Class Codes: G06T 13/20 3D [Three Dimensional] animation
• CPC Class Codes: G06T 13/80 2D [Two Dimensional] animation, e.g. using sprites
• CPC Class Codes: G06T 15/04 Texture mapping

Abstract

A digital reading device includes reader functionality and displays a page turn animation. The digital reading device includes a display displaying a digital content page. The display may include touch-sensitive functionality. Page turn input information including location information is received at the digital reading device. A virtual cylinder is generated based on the information. A corresponding cylinder surface location is determined for each of one or more page locations. The generated cylinder is rendered on the display and the digital content of each of the one or more page locations is textured on the rendered cylinder at the corresponding cylinder surface locations. The digital reading device adaptively tracks the movement of a page input on the display and produces a page turn animation that responds to the movement of the page turn input.

Claims

1. A method of showing a page turn animation in connection with a digital content page displayed by a digital reading device display, comprising:

receiving page turn input information indicating a location on the display from which a page turn input is received;

generating a virtual cylinder having a location based at least in part on the page turn input information;

projecting the digital content page onto the cylinder;

rendering the generated cylinder on the display of the digital reading device; and

texturing the page onto the rendered cylinder responsive to the projection.

2. The method of claim 1, wherein the display comprises a touch-sensitive display and wherein the page turn input information indicates a location where a user touched the display.

3. The method of claim 1, further comprising receiving additional page turn input information indicating a new location on the display from which a new page turn input is received, and wherein the location of the virtual cylinder changes to reflect the new location on the display.

4. The method of claim 1, wherein the page turn input information further indicates a direction and speed of the page turn input on the display and wherein the location of the cylinder is based at least in part on the direction and speed of the page turn input.

5. The method of claim 1, wherein generating the virtual cylinder comprises:

determining a cylinder angle relative to the displayed digital content page responsive at least in part to the page turn input information; and

generating the cylinder oriented at the determined cylinder angle.

6. The method of claim 1, wherein generating the virtual cylinder comprises:

determining a radius of the virtual cylinder responsive at least in part to the page turn input information; and

generating the cylinder with the determined cylinder radius.

7. The method of claim 1, wherein the virtual cylinder has a cylinder angle indicating an angle of the cylinder relative to the displayed digital content page and a radius, and wherein projecting the digital content page onto the cylinder comprises:

projecting a page location of the digital content page onto a corresponding cylinder surface location determined responsive to the cylinder angle and the radius.

8. The method of claim 1, wherein two content pages are displayed by a digital reading device display simultaneously.

9. The method of claim 8, further comprising:

projecting one of the two displayed content pages and an adjacent undisplayed content page onto the cylinder;

texturing the projected displayed content page onto the inside of the rendered cylinder responsive to the projection; and

texturing the projected undisplayed content page onto the outside of the rendered cylinder responsive to the projection.

10. A non-transitory computer-readable storage medium storing executable computer program instructions for showing a page turn animation in connection with a digital content page displayed by a digital reading device display, the instructions comprising instructions for:

receiving page turn input information indicating a location on the display from which a page turn input is received;

generating a virtual cylinder having a location based at least in part on the page turn input information;

projecting the digital content page onto the cylinder;

rendering the generated cylinder on the display of the digital reading device; and

texturing the page onto the rendered cylinder responsive to the projection.

11. The non-transitory computer-readable storage medium of claim 10, wherein the display comprises a touch-sensitive display and wherein the page turn input information indicates a location where a user touched the display.

12. The non-transitory computer-readable storage medium of claim 10, further comprising receiving additional page turn input information indicating a new location on the display from which a new page turn input is received, and wherein the location of the virtual cylinder changes to reflect the new location on the display.

13. The non-transitory computer-readable storage medium of claim 10, wherein the page turn input information further indicates a direction and speed of the page turn input on the display and wherein the location of the cylinder is based at least in part on the direction and speed of the page turn input.

14. The non-transitory computer-readable storage medium of claim 10, wherein generating the virtual cylinder comprises:

determining a cylinder angle relative to the displayed digital content page responsive at least in part to the page turn input information; and

generating the cylinder oriented at the determined cylinder angle.

15. The non-transitory computer-readable storage medium of claim 10, wherein generating the virtual cylinder comprises:

determining a radius of the virtual cylinder responsive at least in part to the page turn input information; and

generating the cylinder with the determined cylinder radius.

16. The non-transitory computer-readable storage medium of claim 10, wherein the virtual cylinder has a cylinder angle indicating an angle of the cylinder relative to the displayed digital content page and a radius, and wherein projecting the digital content page onto the cylinder comprises:

projecting a page location of the digital content page onto a corresponding cylinder surface location determined responsive to the cylinder angle and the radius.

17. The non-transitory computer-readable storage medium of claim 10, wherein two content pages are displayed by a digital reading device display simultaneously.

18. The non-transitory computer-readable storage medium of claim 17, further comprising:

projecting one of the two displayed content pages and an adjacent undisplayed content page onto the cylinder;

texturing the projected displayed content page onto the inside of the rendered cylinder responsive to the projection; and

texturing the projected undisplayed content page onto the outside of the rendered cylinder responsive to the projection.

19. A digital reading device for showing a page turn animation in connection with a digital content page displayed by the digital reading device, comprising:

a non-transitory computer-readable storage medium storing executable computer program instructions comprising instructions for;

receiving page turn input information indicating a location on the digital reading device display from which a page turn input is received;

generating a virtual cylinder having a location based at least in part on the page turn input information;

projecting the digital content page onto the cylinder;

rendering the generated cylinder on the display of the digital reading device; and

texturing the page onto the rendered cylinder responsive to the projection; and

a processor for executing the computer program instructions.

20. The digital reading device of claim 19, wherein the display comprises a touch-sensitive display and wherein the page turn input information indicates a location where a user touched the display.

21. The digital reading device of claim 19, further comprising receiving additional page turn input information indicating a new location on the display from which a new page turn input is received, and wherein the location of the virtual cylinder changes to reflect the new location on the display.

22. The digital reading device of claim 19, wherein the page turn input information further indicates a direction and speed of the page turn input on the display and wherein the location of the cylinder is based at least in part on the direction and speed of the page turn input.

23. The digital reading device of claim 19, wherein generating the virtual cylinder comprises:

determining a cylinder angle relative to the displayed digital content page responsive at least in part to the page turn input information; and

generating the cylinder oriented at the determined cylinder angle.

24. The digital reading device of claim 19, wherein generating the virtual cylinder comprises:

determining a radius of the virtual cylinder responsive at least in part to the page turn input information; and

generating the cylinder with the determined cylinder radius.

25. The digital reading device of claim 19, wherein the virtual cylinder has a cylinder angle indicating an angle of the cylinder relative to the displayed digital content page and a radius, and wherein projecting the digital content page onto the cylinder comprises:

projecting a page location of the digital content page onto a corresponding cylinder surface location determined responsive to the cylinder angle and the radius.

26. The digital reading device of claim 19, wherein two content pages are displayed simultaneously.

27. The digital reading device of claim 26, further comprising:

projecting one of the two displayed content pages and an adjacent undisplayed content page onto the cylinder;

texturing the projected displayed content page onto the inside of the rendered cylinder responsive to the projection; and

texturing the projected undisplayed content page onto the outside of the rendered cylinder responsive to the projection.