IP Library Granted Patent US 8,629,578
Granted Patent B2
US 8,629,578 · App. 13/773,011 · Granted Jan 14, 2014

Wireless energy transfer systems

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Quick Facts
Patent No.
US 8,629,578
App. No.
13/773,011
Granted
Jan 14, 2014
Kind
B2
Abstract

A wireless power transfer system for computer peripherals, includes a source magnetic resonator, integrated into a source station and connected to a power source and power and control circuitry, and a device magnetic resonator, integrated into a computer peripheral wherein power is transferred non-radiatively from the source magnetic resonator to the device magnetic resonator, and wherein the source magnetic resonator is configured to transfer power during predefined intervals.

Claims (33)

1. A wireless power transfer system for computer peripherals, comprising:

a source magnetic resonator, integrated into a source station and connected to a power source and power and control circuitry, and

a device magnetic resonator, integrated into a computer peripheral;

wherein power is transferred non-radiatively from the source magnetic resonator to the device magnetic resonator, and wherein the source magnetic resonator is configured to transfer power during predefined intervals.

2. The system of claim 1 , wherein the source magnetic resonator is configured to transfer power when the computer peripheral is not in use.

3. The system of claim 1 , wherein the source magnetic resonator is configured to transfer power during predefined times of a day.

4. The system of claim 1 , wherein the source magnetic resonator is configured to transfer power when the computer peripheral is within an energy transfer range of the source.

5. The system of claim 1 , wherein the device magnetic resonator comprises shielding to reduce a magnetic field interaction with lossy materials forming a part of the peripheral.

6. The system of claim 1 , wherein the computer peripheral is powered directly by the energy transferred to the device magnetic resonator.

7. A wirelessly powered computer peripheral, comprising:

a device magnetic resonator, and

a repeater resonator,

wherein the repeater resonator is positioned to enable the coupling to a second computer peripheral.

8. The peripheral of claim 7 , wherein the peripheral is a computer keyboard.

9. The peripheral of claim 8 , wherein the second peripheral is a computer mouse and the repeater resonator is positioned to enable the transfer of power to the computer mouse positioned on one side of the keyboard.

10. The peripheral of claim 7 , wherein the peripheral is a touch surface.

11. The peripheral of claim 7 , wherein the computer peripheral includes at least one rechargeable battery that is charged by a wireless power transfer system.

12. The peripheral of claim 7 , wherein the computer peripheral includes at least one energy storage unit that is energized by a wireless power transfer system.

13. The peripheral of claim 7 , wherein the computer peripheral includes at least one super capacitor that is charged by a wireless power transfer system.

14. A wirelessly powered computer peripheral, comprising:

a magnetic resonator,

wherein the magnetic resonator is configurable to operate as a device resonator for capturing energy and delivering power to the computer peripheral and as a repeater resonator for enabling energy transfer to another computer peripheral from an external wireless energy source.

15. The computer peripheral of claim 14 , wherein the magnetic resonator is configurable to operate simultaneously as a device resonator and a repeater resonator.

16. The computer peripheral of claim 14 , wherein the magnetic resonator may be periodically switched from a repeater function to an energy capture function.

17. The computer peripheral of claim 14 , wherein the peripheral is a computer keyboard.

18. The computer peripheral of claim 14 , wherein the peripheral is a monitor.

19. The computer peripheral of claim 14 , wherein the peripheral comprises a touch surface.

20. The computer peripheral of claim 14 , wherein the peripheral comprises a light.

21. The computer peripheral of claim 14 , wherein the peripheral is at least one of a smart phone, a tablet computer, a game console and a controller.

22. The computer peripheral of claim 14 , wherein the peripheral is powered directly by the energy transferred to the device magnetic resonator.

23. The computer peripheral of claim 14 , wherein the peripheral comprises at least one rechargeable battery that is charged by a wireless energy source.

24. The computer peripheral of claim 14 , wherein the peripheral comprises at least one energy storage unit that is energized by the wireless energy source.

25. The computer peripheral of claim 14 , wherein the peripheral includes at least one super capacitor that is charged by the wireless energy source.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 1, 2025
From: WITRICITY CORPORATION
To: NAVIGATE LLC
Reel/Frame 073066/0682 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 29, 2013
From: KURS, ANDRE B.; KARALIS, ARISTEIDIS; KESLER, MORRIS P.; CAMPANELLA, ANDREW J.; HALL, KATHERINE L.; KULIKOWSKI, KONRAD; LI, QIANG; SOLJACIC, MARIN
To: WITRICITY CORPORATION
Reel/Frame 031504/0876 →