User input device with ring-shaped scroll wheel

1. A user input device for use with a computing device, the user input device including a housing and a scroll wheel assembly coupled to the housing, the scroll wheel assembly comprising:

a scroll wheel including a ring-shaped body having a surface including an outer circumferential surface and an inner circumferential surface that bounds a hollow interior, the scroll wheel being configured to extend through an opening of the housing, the outer circumferential surface being configured to be contacted by a digit of a user; and

a scroll wheel support structure including a frame and a plurality of supports mounted to the frame and contacting the surface of the scroll wheel, at least one of the plurality of supports positioned on the outer circumferential surface of the scroll wheel and configured to provide upward force on the scroll wheel, and at least one of the plurality of supports configured to provide downward force on the scroll wheel to rotatably secure the scroll wheel to the scroll wheel support structure.

2. The user input device of claim 1 , wherein the housing extends into the hollow interior of the scroll wheel.

3. The user input device of claim 1 , wherein the scroll wheel support structure is configured to enable the scroll wheel to smoothly rotate.

4. The user input device of claim 3 , wherein the plurality of scroll wheel supports includes a plurality of rollers, at least one being positioned on the inner circumferential surface of the scroll wheel.

5. The user input device of claim 1 , wherein the plurality of scroll wheel supports includes an inner roller positioned on the inner circumferential surface of the scroll wheel and two outer rollers positioned on the outer circumferential surface of the scroll wheel.

6. The user input device of claim 4 , wherein one of the plurality of rollers includes detents to provide indexed scrolling.

7. The user input device of claim 4 , wherein the scroll wheel assembly further includes an encoder wheel, the encoder wheel being configured to encode scrolling movement of the scroll wheel.

8. The user input device of claim 7 , wherein the encoder wheel is mounted to one of the plurality of rollers.

9. The user input device of claim 8 , wherein the scroll wheel assembly further includes a sensor configured to read the encoder wheel.

10. The user input device of claim 1 , wherein the scroll wheel is provided with a plurality of encoder teeth on the inner circumferential surface of the scroll wheel.

11. The user input device of claim 1 , wherein the scroll wheel assembly further includes a pivot mechanism, and the scroll wheel support structure is configured to pivot about a pivot of the pivot mechanism when the scroll wheel is depressed by a digit of the user, to thereby actuate a pivot switch.

12. The user input device of claim 1 , the scroll wheel assembly further comprising a tilt mechanism configured to enable the scroll wheel to tilt laterally.

13. The user input device of claim 1 , wherein the scroll wheel is one of a plurality of scroll wheels, the scroll wheel support structure is configured to removably secure each of the plurality of scroll wheels.

14. The user input device of claim 1 , wherein the scroll wheel assembly further includes a magnet configured to magnetically secure the scroll wheel to the scroll wheel assembly, allowing the scroll wheel to be removable from the scroll wheel assembly.

15. The user input device of claim 1 , wherein the scroll wheel is translucent and the scroll wheel assembly further comprises a light source configured to illuminate the scroll wheel.

16. The user input device of claim 1 , wherein the housing is in a shape of a computer mouse or gaming controller.

17. The user input device of claim 1 , wherein the housing is in a shape of a computing device.

18. A user input device for use with a computing device, the user input device comprising a scroll wheel assembly, the scroll wheel assembly including:

a plurality of scroll wheels, each scroll wheel having a ring-shaped body with no center hub, each of the ring-shaped bodies having a surface including an outer circumferential surface configured to be contacted by a digit of a user and an inner circumferential surface that bounds a hollow interior;

a scroll wheel support structure including a frame;

a plurality of scroll wheel supports mounted to the frame and contacting the surface of the scroll wheel, the plurality of scroll wheel supports including two rollers positioned on the outer circumferential surface of the scroll wheel and configured to rotatably secure the scroll wheel to the frame; and

a magnet configured to magnetically secure the scroll wheel to the scroll wheel assembly, allowing each of the plurality of scroll wheels to be removably secured to the scroll wheel assembly.

19. A user input device for use with a computing device, comprising:

a housing;

a scroll wheel having a ring-shaped body with an outer circumferential surface configured to be contacted by a digit of a user and an inner circumferential surface that bounds a hollow interior;

a scroll wheel support structure configured to couple the scroll wheel to the housing, the scroll wheel support structure comprising a frame and a plurality of supports mounted to the frame and contacting the surface of the scroll wheel, at least one of the plurality of supports positioned on the outer circumferential surface of the scroll wheel and configured to provide upward force on the scroll wheel, and at least one of the plurality of supports configured to provide downward force on the scroll wheel to rotatably secure the scroll wheel to the scroll wheel support structure;

wherein the scroll wheel is at least partially translucent and is configured to be illuminated by a light source.