Lens Touch Graphic Effect For Mobile Devices

• US 20140267437A1
• Filed: 03/14/2014
• Published: 09/18/2014
• Est. Priority Date: 03/14/2013
• Status: Active Grant

• Current Assignee: Futurewei Technologies Incorporated (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Futurewei Technologies Incorporated (Huawei Investment & Holding Co., Ltd.)
• Inventors: Mazzola, Anthony J.
• Granted Patent: US 9,715,864 B2
• Time in Patent Office: Days
• US Class Current: 345/661
• CPC Class Codes: G06F 2203/04805 Virtual magnifying lens, i.e. window or frame movable on top of displayed information to enlarge it for better reading or selection
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures
• CPC Class Codes: G09G 5/373 for modifying the size of the graphic pattern

Abstract

A method for content displaying implemented by a mobile device that comprises a display, the method comprising detecting a user touch on the display via a graphical user interface, generating a lens animation effect in a region of content based on the user touch, wherein the lens animation effect at least magnifies the region of content shown on the display, and displaying the lens animation effect on the display adjacent to a location of the user touch.

Claims

1. A method for content displaying implemented by a mobile device that comprises a display, the method comprising:

detecting a user touch on the display via a graphical user interface;

generating a lens animation effect in a region of content based on the user touch, wherein the lens animation effect at least magnifies the region of content shown on the display by a magnification level that depends on a duration of the user touch; and

displaying the lens animation effect on the display adjacent to a location of the user touch.

2. The method of claim 1, wherein the magnification level starts from a minimum value upon detection of the user touch and then continuously increases until the magnification level reaches a maximum value.

3. The method of claim 1, wherein the magnification level starts from a first level that yields no magnification upon detection of the user touch and then continuously increases throughout the duration of the user touch, and wherein the magnification level returns to the first level after the user touch is no longer detected.

4. The method of claim 1, wherein the lens animation effect converts the region of content into a concentric magnified region, and wherein a visible radius of the region of content multiplying the magnification level equals a radius of the magnified region.

5. The method of claim 4, wherein displaying the lens animation effect comprises:

determining whether a distance between a current fragment and a center of the magnified region is less than the visible radius; and

recalculating coordinates of the current fragment for display in the magnified region based upon the distance being less than the visible radius.

6. The method of claim 4, wherein unmagnified fragments in the region of content are not separately displayed outside the magnified region.

7. The method of claim 1, wherein the graphical user interface comprises a screen space, a texture space, and a plurality of image layers, and wherein the magnification level is set in the screen space such that the plurality of image layers receive the same magnification level regardless of layer sizes.

8. The method of claim 1, wherein the region of content after magnification is displayed as a magnified region, and wherein the lens animation effect comprises an animated lens flare situated along a portion of an edge of the magnified region.

9. The method of claim 8, further comprising:

determining a direction of user touch movement; and

moving the animated lens flare around a lens effect center along the edge of the magnified region to indicate the direction of user touch movement, wherein the lens effect center is adjacent to the location of the user touch such that the location of the user touch falls within the magnified region.

10. The method of claim 9, wherein the lens effect center is vertically offset by about half a radius of the magnified region above the location of the user touch.

11. The method of claim 9, further comprising fixing a direction of the animated lens flare to create an appearance that the animated lens flare follows the user touch movement from behind the user touch.

12. The method of claim 11, wherein an angle between the direction of the animated lens flare and an opposite of the direction of user touch movement is about 15 degrees except when there is no finger movement.

13. The method of claim 9, further comprising filtering an intensity of the animated lens flare in a radial direction such that the intensity at a fragment position is dependent on a distance from the fragment position to the lens effect center.

14. The method of claim 13, wherein the filtered intensity follows a polynomial profile that reaches a peak value at about the edge of the magnified region and decreases as the fragment position moves inside or outside the edge.

15. The method of claim 9, further comprising filtering an intensity of the animated lens flare in a tangential direction using at least trigonometric functions such that an angular width of the animated lens flare is less than 180 degrees.

16. An apparatus comprising:

a touch screen configured to display one or more contents; and

one or more processors configured to;

detect a user touch on the touch screen;

magnify a region of contents to create an appearance of an animated lens in response to the user touch, wherein magnifying the region of contents uses a magnification level that at least initially increases with a duration of the user touch; and

instruct the touch screen to display the magnified region of contents.

17. The apparatus of claim 16, wherein the magnification level starts from one upon detection of the user touch and then continuously increases until the magnification level reaches a pre-determined maximum value, or until the user touch can no longer be detected, whichever occurs sooner, and wherein the magnification level decreases to one after the user touch is no longer detected.

18. The apparatus of claim 16, wherein, in creating the appearance of the animated lens, the one or more processors are further configured to generate a flare effect along an edge of the magnified region of contents, and wherein the flare effect tracks movement of the user touch.

19. The apparatus of claim 18, wherein the one or more processors are further configured to:

filter a spectral intensity of the flare effect in a radial direction such that the spectral intensity at a fragment position is dependent on a distance from the fragment position to a circular center of the animated lens; and

filter the spectral intensity in a tangential direction such that an angular width of the flare effect is less than 180 degrees.

20. A computer program product comprising computer executable instructions stored on a non-transitory computer readable medium such that when executed by a computer system cause the computer system to:

recognize a user touch on a screen of the computer system;

render a region of content to simulate an appearance of a lens with a magnification level that varies with a duration of the user touch, wherein the appearance of the lens comprises an animated flare along a portion of an edge of the rendered region; and

display the rendered region of content on the screen.

21. The computer program product of claim 20, further comprising instructions that cause the computer system to:

spin the animated flare along the edge of the rendered region to track movement of the user touch; and

filter a spectral intensity of the animated flare in a radial direction and a tangential direction for creating a non-uniform intensity profile.

22. The computer program product of claim 20, wherein the magnification level starts from one upon detection of the user touch and then continuously increases until the magnification level reaches a pre-determined maximum value, or until the user touch can no longer be detected, whichever occurs sooner, and wherein the magnification level decreases to one after the user touch is no longer detected.