Systems and methods for providing electric power to mobile and arbitrarily positioned devices

• US 7,172,196 B2
• Filed: 12/10/2003
• Issued: 02/06/2007
• Est. Priority Date: 12/10/2002
• Status: Active Grant

• Current Assignee: FLI Charge, LLC
• Original Assignee: Childlikes, Inc.
• Inventors: Randall, Mitch
• Primary Examiner(s): Nguyen; Kim
• Application Number:
  US10/732,103
• Publication Number:
  US 20040195767A1
• Time in Patent Office: 1,154 Days
• Field of Search: 273237-238, 273/242
• US Class Current: 273/237
• CPC Class Codes: A63F 2009/2404 Keyboard
• CPC Class Codes: A63F 2009/2407 Joystick
• CPC Class Codes: A63F 2009/2439 the input being a code, e.g. ID
• CPC Class Codes: A63F 2009/2442 Sensors or detectors
• CPC Class Codes: A63F 2009/2457 Display screens, e.g. monitors, video displays
• CPC Class Codes: A63F 2009/247 audible, e.g. using a loudspeaker
• CPC Class Codes: A63F 2009/2494 Battery, e.g. dry cell
• CPC Class Codes: A63F 3/00643 Electric board games; Electric features of board games electric word or number games A63F3/0421; computer chess G06F; electric raffle games A63F3/081
• CPC Class Codes: A63H 18/12 Electric current supply to toy vehicles through the track
• CPC Class Codes: Y10S 439/95 Electrical connector adapted to transmit electricity to mating connector without physical contact, e.g. by induction, magnetism, or electrostatic field

Abstract

Various contact systems and methods for manufacturing and using such are disclosed herein. Examples of the contact systems include a surface with one set of pads biased at a first voltage level, and another set of pads biased at a second voltage level. Such a contact system can be used, for example, to transfer power to an electromechanical device disposed thereon. In one particular example, the electromechanical device can include a power storage element and two or more couplings. When one of the couplings contacts a pad biased at the first voltage level, and another of the couplings contacts a pad biased at the second voltage level, a circuit is completed where some derivative of the differential between the first voltage level and the second voltage level is placed across the power storage element. Completion of the circuit causes the power storage element to charge. Power can be drawn from the power storage element to operate the electromechanical device.

Claims

1. Electromechanical apparatus, comprising:

an electromechanical device, which is powered by electricity and is turnable and moveable in any direction on a support surface, said electromechanical device having a plurality of electric contacts that are spaced apart in relation to each other in positions to make electric contact with the support surface, said electric contacts being electrically connected to a rectifier circuit that is capable of rectifying electric power from said electric contacts whenever at least one of said electric contacts is at a first voltage level and at least another one of said electric contacts is at a second voltage level;

a contact system having a plurality of pads that comprise at least part of said support surface, wherein some of said pads are at the first voltage level and others of said pads are at the second voltage level, and further wherein the pads at the first voltage level are interspersed with the pads at the second voltage level in such a manner that movement of the electromechanical device in any direction on the support surface can result in a condition in which at least one of the contacts touches at least one pad at the first voltage level while at least one other of the contacts touches at least one pad at the second voltage level.

2. The electromechanical apparatus of claim 1, further including:

a power source coupling, which includes a first lead electrically coupled to some of said pads and a second lead electrically coupled to others of said pads, and wherein the first lead and the second lead are operable for biasing the first voltage level and the second voltage level, respectively; and

an insulation region, wherein said some of said plurality of pads are spaced apart from said others of said plurality of pads by the insulation region.

3. The electromechanical apparatus of claim 2, further comprising:

a transformer that supplies a power output based on a power input, and wherein the first voltage level and the second voltage level are derived from the power output.

4. The electromechanical apparatus of claim 3, wherein the power output is an alternating current output.

5. The electromechanical apparatus of claim 2, wherein an upper portion of the support surface comprising the plurality of first pads, the plurality of second pads, and the insulation region is a continuous two-dimensional surface.

6. The electromechanical apparatus of claim 2, wherein the plurality of first pads, the plurality of second pads, and the insulation region are disposed to form a continuous three-dimensional surface.

7. The electromechanical apparatus of claim 2, wherein the plurality of first pads, the plurality of second pads, and the insulation region are disposed to form a discontinuous three-dimensional surface.

8. The electromechanical apparatus of claim 2, wherein the insulation region is part of a non-conductive substrate.

9. The electromechanical apparatus of claim 8, wherein the plurality of pads are disposed on the non-conductive substrate.

10. The electromechanical apparatus of claim 8, wherein the plurality of pads are formed within a plurality of impressions within the non-conductive substrate.

11. The electromechanical apparatus of claim 2, wherein the plurality of first pads, the plurality of second pads, and the insulation region are disposed on a non-conductive substrate.

12. The electromechanical apparatus of claim 2, wherein at least one of the plurality of first pads is biased separate from at least another of the plurality of first pads.

13. The electromechanical apparatus of claim 2, wherein the plurality of pads are formed as a plurality of substantially polygonal pads.

14. The electromechanical apparatus of claim 13, wherein the substantially polygonal pads are substantially rectangular pads.

15. The electromechanical apparatus of claim 2, wherein the plurality of pads and the insulation region are disposed on a non-conductive substrate.

16. The electromechanical apparatus of claim 2, wherein the first and second voltage levels are different.

17. The electromechanical apparatus of claim 1, wherein the plurality of pads at the first voltage level are spaced apart from the plurality of pads at the second voltage level by a distance that is greater than a dimension of the electric contacts of the electromechanical device.

18. The electromechanical apparatus of claim 1, wherein the contact system comprises:

a support surface, wherein the support surface includes a substantially non-conductive substrate, and wherein the plurality of pads are disposed on the substantially non-conductive substrate; and

wherein an upper surface that includes the pads at the first voltage level and the pads at the second voltage level is a continuous surface; and

a power source coupled to the plurality of pads to bias some of said pads at the first voltage level and others of said pads at the second voltage level.

19. The electromechanical apparatus of claim 18, wherein the power source is a transformer.

20. The electromechanical apparatus of claim 18, wherein the continuous surface is selected from a group consisting of:

continuous two-dimensional; and

continuous three-dimensional.

21. The electromechanical apparatus of claim 1, wherein:

the support surface includes a substantially non-conductive insulation region;

the plurality of pads are disposed on a substantially non-conductive substrate;

a power source is coupled to the plurality of pads to bias some of said pads at the first voltage level and others of said pads at the second voltage level;

the electromechanical device includes a movement element, a power storage element, and a plurality of couplings; and

the plurality of couplings complete a circuit including the power storage element, a first conductive contact between one of the plurality of couplings and one of the plurality of first pads, and a second conductive contact between another of the couplings and one of the plurality of second pads.

22. The electromechanical apparatus of claim 21, wherein the power storage element includes a device selected from a group consisting of:

a capacitor and a rechargeable battery.

23. The electromechanical apparatus of claim 21, wherein the movement element is selected from a group consisting of:

a leg, a flexible brush, and a wheel.

24. The electromechanical apparatus of claim 21, wherein at least a portion of the substantially non-conductive substrate is formed of a material selected from a group consisting of:

plastic, glass, rubber, paper fibers, ceramic, and silicon.

25. The electromechanical apparatus of claim 21, wherein an upper surface that includes the plurality of first pads and the plurality of second pads is continuous, two-dimensional.

26. The electromechanical apparatus of claim 1, including control circuitry associated with the contact system and operable to switch off and on selected ones of the pads to vary operability of the pads.

27. The electromechanical apparatus of claim 1, further including:

a power source coupling, wherein the power source coupling includes a first lead electrically coupled to the pads at the first voltage level and a second lead electrically coupled to the pads at the second voltage level, and wherein the first lead and the second lead are operable for biasing the first voltage level and the second voltage level, respectively; and

an insulation region, wherein said some of said plurality of pads are spaced apart from said others of said plurality of pads by an insulation region.

28. A method for providing electric power to an electromechanical device that is moveable to, and positionable at, divers locations on a support surface, comprising:

providing the support surface with a plurality of pads at one voltage level interspersed with a plurality of pads at another voltage level;

providing the electromechanical device with a plurality of electric contacts, at least two of which are spaced apart from each other a sufficient distance to accommodate positioning of one of said contacts to be in electric contract with one of said pads at said one voltage level simultaneously with positioning another of said contacts to be in electric contact with another of said pads at said another voltage level;

rectifying electric current flowing between said contacts to provide electric power for operating said electromechanical device, regardless of which one of said contacts is positioned in electric contact with the pad at said one voltage level and which another of said contacts is positioned in electric contact with the pad at said another voltage level.

29. The method of claim 28, wherein said support surface is substantially non-conductive, further comprising:

forming a conductive material on the substantially non-conductive support surface;

defining a plurality of first pads in the conductive material;

defining a plurality of second pads in the conductive material; and

defining an insulation region between the plurality of first pads and the plurality of second pads.

30. The method of claim 29, wherein the method further comprises:

electrically coupling a power source coupling to the plurality of first pads and the plurality of second pads, wherein the power source is operable for biasing the plurality of first pads at a first voltage level, and the plurality of second pads at a second voltage level.

31. The method of claim 29, wherein forming the conductive material on the substantially non-conductive substrate includes forming an adhesive layer between the conductive material and the substantially non-conductive material.

32. A method for providing electric power to an electrically-powered device that is positionable at divers locations on a support surface, comprising:

providing the support surface with a plurality of pads at one voltage level interspersed with a plurality of pads at another voltage level;

providing the electrically-powered device with a plurality of electric contacts, at least two of which are spaced apart from each other a sufficient distance to accommodate positioning of one of said contacts to be in electric contract with one of said pads at said one voltage level simultaneously with positioning another of said contacts to be in electric contact with another of said pads at said another voltage level;

rectifying electric current flowing between said contacts to provide electric power for operating said electrically-powered device, regardless of which one of said contacts is positioned in electric contact with the pad at said one voltage level and which another of said contacts is positioned in electric contact with the pad at said another voltage level.

33. A device which is powered by electricity and is positionable on a support surface, said device having a plurality of electric contacts that are spaced apart in relation to each other in positions to make electric contact with the support surface, said electric contacts of said device being electrically connected to a rectifier circuit in the device that is capable of rectifying electric power from said electric contacts of said device to a specific polarity whenever at least one of said electric contacts of said device is at a first voltage level and at least another one of said electric contacts of said device is at a second voltage level.

34. The device of claim 33, wherein:

said device is powered by electricity at a first polarity;

the support surface has a plurality of support contacts, some of which are at a first voltage level and at least one of which is at a second voltage level; and

said rectifier circuit is connected to said electric contacts of the device and configured to provide said electricity at said first polarity whenever at least one of the electric contacts of the device is in contact with at least one of the support contacts at the first voltage level and at least another of the electric contacts of the device is in contact with at least another of the support contacts at the second voltage level, regardless of whether said one and said another of the electric contacts of the device are at the first polarity or at a second polarity that is opposite said first polarity.

35. Electrical apparatus, comprising:

a device, which is powered by electricity and that can be positioned at divers locations on a support surface, said device having a plurality of electric contacts that are spaced apart in relation to each other in positions to make electric contact with the support surface, said electric contacts being electrically connected to a rectifier circuit that is capable of rectifying electric power from said electric contacts whenever at least one of said electric contacts is at a first voltage level and at least another one of said electric contacts is at a second voltage level; and

a contact system having a plurality of pads that comprise at least part of said support surface, wherein some of said pads are at the first voltage level and others of said pads are at the second voltage level, and further wherein the pads at the first voltage level are interspersed with the pads at the second voltage level in such a manner that movement of the electromechanical device in any direction on the support surface can result in a condition in which at least one of the contacts touches at least one pad at the first voltage level while at least one other of the contacts touches at least one pad at the second voltage level.

36. Electrical apparatus, comprising:

a device, which is powered by electricity, includes a plurality of electrical contacts for receiving electric power, said device and the electric contacts being configured in a manner that enables the device to be positioned on a support surface with the electrical contacts in electric contact with the support surface, and said device having electric circuitry connected to the electric contacts that enables the device to receive electric power when at least one of said electric contacts is in electrical connection with a power source at a different voltage level than at least another of said electric contacts; and

a contact system having a plurality of pads that are comprised in said support surface and that are electrically connected to the power source in such a manner that there is a voltage difference between at least some of said pads that are interspersed with each other in a manner that provides a voltage difference between at least two of the electric contacts of the device when the device is positioned on a part of the support surface which comprises the pads that are electrically connected to the power source.

37. The electrical apparatus of claim 36, wherein said pads are shaped, sized, and interspersed on the support surface in relation to the distribution of the contacts of the device to achieve a desired power transfer probability at the desired positions and orientations of the device on the support surface.

38. The electrical apparatus of claim 37, wherein said pads are arranged in a regular pattern.

39. The electrical apparatus of claim 37, wherein said pads are arranged in a pattern that has rotational symmetry.

40. The electrical apparatus of claim 37, wherein said pads having the voltage difference between them are intermixed on a size scale smaller than a span of the electric contacts of the device.

41. The electrical apparatus of claim 37, wherein said pads are square and arranged in a checkerboard pattern of alternate voltage levels.

42. The electromechanical apparatus of claim 37, wherein said plurality of pads are arranged in a regular pattern.

43. The electromechanical apparatus of claim 37, wherein said plurality of pads are arranged in a pattern that has rotational symmetry.

44. The electromechanical apparatus of claim 37, wherein said plurality of pads having different voltage levels are intermixed on a size scale smaller than a span of the electric contacts of the device.

45. The electromechanical apparatus of claim 37, wherein said plurality of pads are square and arranged in a checkerboard pattern of alternate voltage levels.

46. The electrical apparatus of claim 36, wherein said pads are square and arranged in a two-dimensional matrix, and wherein said pads are connectable to the power source in such a manner that laterally adjacent pads are at different voltages in relation to each other.

47. The electrical apparatus of claim 46, wherein the device has at least five electric contacts.

48. The electrical apparatus of claim 46, wherein the device has at least five electric contacts arranged in a circular pattern.

49. The electrical apparatus of claim 46, wherein the device has at least five electric contacts equally spaced on a circle in a pentagon pattern.

50. The electrical apparatus of claim 49, wherein the circle has a radius that is proportioned in relation to the matrix of square pads such that there is a one hundred percent power transfer probability regardless of orientation of the device positioned on any part of the matrix of pads that are electrically connected to the power source.

51. The electrical apparatus of claim 36, wherein the pads are electrically connected to the power source in a direct current manner.

52. The electrical apparatus of claim 36, wherein the pads are electrically connected to the power source in an alternating current manner.

53. The electrical apparatus of claim 36, wherein the electric circuitry of the device includes a rectifier circuit.

54. The electrical apparatus of claim 53, wherein the device is powered by rectified electric current produced by the rectifier circuit.

55. The electrical apparatus of claim 53, wherein the electric circuitry of the device includes a power storage component that is connected electrically to the rectifier circuit and that is chargeable with rectified current produced by the rectifier circuit.

56. The electrical apparatus of claim 55, wherein the device is powered by electric current from the power storage component.

57. The electrical apparatus of claim 55, wherein the power storage component comprises a capacitor.

58. The electrical apparatus of claim 55, wherein the power storage component comprises a rechargeable battery.

59. The electromechanical apparatus of claim 36, wherein said plurality of pads are square and arranged in a two-dimensional array, and wherein said pads are connectable to the power source so that laterally adjacent pads are at different voltages.

60. The electromechanical apparatus of claim 59, wherein the device has at least five electric contacts.

61. The electromechanical apparatus of claim 59, wherein the device has at least five electric contacts arranged in a circular pattern.

62. The electromechanical apparatus of claim 59, wherein the device has at least five electric contacts equally spaced on a circle in a pentagon pattern.

63. The electromechanical apparatus of claim 62, wherein the circle has a radius that is proportioned in relation to the square pads such that there is a one hundred percent power transfer probability regardless of orientation of the device positioned on any part of the support surface which comprises the pads that are electrically connected to the power source.

64. The electrical apparatus of claim 59, wherein the power source provides the pads with an alternating current.

65. The electrical apparatus of claim 36, wherein the power source provides the pads with a direct current.

66. Electrical apparatus, comprising:

a component that utilizes electric power; and

at least five electric contacts for receiving electric power for said component from a support surface which comprises at least two electrically distinct pads that have specific shapes, sizes, and distributions on the support surface separated by gaps and are connected to a power supply in a manner that creates opposite voltage potential polarity between said electrically distinct pads, wherein said at least five electric contacts on the device are distributed in a manner relative to the shapes, sizes, and distributions of the pads such that no more than three of the at least five contacts can be positioned in the gaps between said pads regardless of how the apparatus is positioned on the support surface.

67. The electrical apparatus of claim 66, wherein at least one of the pads is a square and the device has at least five electric contacts equally spaced on a circle.