Wireless desktop IT environment

• US 9,128,687 B2
• Filed: 01/11/2009
• Issued: 09/08/2015
• Est. Priority Date: 01/10/2008
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Cook, Nigel P., Sieber, Lukas, Widmer, Hanspeter
• Primary Examiner(s): Fleming, Fritz M
• Application Number:
  US12/351,845
• Publication Number:
  US 20090212636A1
• Time in Patent Office: 2,431 Days
• Field of Search: 307/104, 320/108
• US Class Current: 1/1
• CPC Class Codes: G06F 1/26 Power supply means, e.g. regulation thereof for memories G11C
• CPC Class Codes: G06F 1/266 Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/50 using additional energy repeaters between transmitting devices and receiving devices

Abstract

A wireless powered desktop system.

Claims

1. A wireless power transmitting system, comprising:

a computer display configured to be coupled to a power source;

a base for holding the computer display, the base including

a foot configured to be placed on a surface, the base having an area to hold an inductive loop, the inductive loop disposed in the foot with an orientation parallel to the surface, and

an upright member extending from the foot, the upright member having a first end and a second end, the first end of the upright member coupled to the foot and the second end of the upright member coupled to the computer display; and

a LC circuit disposed within the foot of the base, the LC circuit configured to receive power from the power source, the LC circuit including the inductive loop and a capacitor corresponding to an associated LC value of the LC circuit, the LC circuit configured to generate a magnetic power transfer field at a resonant frequency based on the LC value associated with the LC circuit.

2. The system as in claim 1, wherein said base has a round outer shape, and said inductive loop is coaxial to said round outer shape.

3. The system as in claim 1 further comprising a charging pad, the charging pad separate from the computer display, the charging pad tuned to be substantially resonant with the LC circuit.

4. The system as in claim 3, wherein said charging pad comprises electrical contacts which electrically couple to an attached item.

5. The system as in claim 3, wherein said charging pad is parasitic.

6. The system as in claim 5, wherein said charging pad has a connection for an external device.

7. The system as in claim 1, wherein said base of said computer display has a position which is unchanged during operation.

8. The system as in claim 1, wherein a polarization of said magnetic power transfer field is unchanged during operation of the desktop device.

9. The system as in claim 1, wherein the LC circuit further comprises a second inductive loop with a plane of the second inductive loop having an orientation which is perpendicular to the surface.

10. The system as in claim 9, wherein the second inductive loop is disposed around a perimeter of a flat screen of the computer display.

11. A wireless power transmitting system, comprising:

a computer display that is substantially unmoved during operation, the computer display configured to be coupled to a power source;

a base for holding the computer display, the base including

a foot configured to be placed on a surface, the base having an area to hold an inductive loop, the inductive loop disposed in the foot with an orientation parallel to the surface, and

an upright member extending from the foot, the upright member having a first end and a second end, the first end of the upright member coupled to the foot and the second end of the upright member coupled to the computer display; and

a LC circuit disposed within the foot of the base, the LC circuit configured to receive power from the power source, the LC circuit including the inductive loop and a capacitor corresponding to an associated LC value of the LC circuit, the LC circuit being configured to generate a magnetic power transfer field at a resonant frequency based on the LC value associated with the LC circuit.

12. The system as in claim 11, wherein the power source comprises a magnetic power source configured to provide power to the computer display, and wherein the magnetic power transfer field comprises a substantially magnetic field.

13. The system as in claim 12, wherein the LC circuit is configured to generate the magnetic power transfer field to include a substantially constant polarization.

14. The system as in claim 11, wherein said inductive loop of said LC circuit is integrated as part of said base.

15. The system as in claim 14, wherein said base has a round outer shape, and said inductive loop is coaxial to said round outer shape.

16. The system as in claim 11 further comprising a separate charging pad, which is tuned to be substantially resonant with the LC circuit.

17. The system as in claim 16, wherein said charging pad comprises electrical contacts coupled to an attached item.

18. A method, comprising:

receiving, with a LC circuit, power from a power source;

generating a magnetic power transfer field via the LC circuit based on the received voltage signal, the magnetic power transfer field having a resonant frequency and being configured to provide electrical power wirelessly to desktop items, the desktop items being physically separate from the LC circuit, the LC circuit including an inductive loop and a capacitor corresponding to an associated LC value of the LC circuit, the LC circuit disposed in a foot of a base configured to be placed on a surface, the inductive loop parallel to the surface, the base including an upright member extending from the foot having a first end coupled to the base and a second end coupled to a computer display, and the magnetic power transfer field having a resonant frequency based on an LC value associated with the LC circuit.

19. The method as in claim 18, further comprising operating said inductive loop with a plane of the loop having an orientation which is parallel to a plane of a desktop.

20. The method as in claim 19 further comprising operating a second inductive loop with a plane of the second inductive loop having an orientation which is perpendicular to the plane of the desktop.

21. The method as in claim 18, wherein said base has a round outer circumference, and said inductive loop is coaxial to said round outer circumference.

22. The method as in claim 18 further comprising a separate charging pad, which is tuned to be substantially resonant with the LC circuit.

23. The method as in claim 22, wherein said charging pad has electrical contacts which couple to an attached item.

24. The method as in claim 22, wherein said charging pad is parasitic.

25. The method as in claim 24, wherein said charging pad is parasitic and includes a connection for an external device.

26. The method as in claim 18, further comprising maintaining said base of said computer display in a position which is fixed during operation.

27. A method, comprising:

receiving, with a LC circuit, power from a power source;

generating a magnetic power transfer field via the LC circuit based on the received power, the magnetic power transfer field having a resonant frequency and being configured to provide electrical power wirelessly to a plurality of desktop items, the plurality of desktop items being physically separate from the LC circuit, the LC circuit including an inductive loop and a capacitor corresponding to an associated LC value of the LC circuit, the LC circuit disposed in a foot of a base configured to be placed on a surface, the inductive loop parallel to the surface, the base including an upright member extending from the foot having a first end coupled to the base and a second end coupled to a computer display, and the magnetic power transfer field having a resonant frequency based on an LC value associated with the LC circuit.

28. The method as in claim 27, wherein said operating comprises continuously transmitting said electrical power.

29. The method of claim 27, wherein the magnetic power transfer field is configured to transmit electrical power at a polarization parallel to a surface of a desktop that supports the computer display.

30. An apparatus, comprising:

means for receiving power from a power source;

means for generating a magnetic power transfer field based on the received power, the magnetic power transfer field having a resonant frequency and being configured to provide electrical power wirelessly to desktop items, the desktop items being physically separate from the means for generating the magnetic power transfer field, the means for generating the magnetic power transfer field disposed within the foot of a base, the base configured to be placed on a surface, the base having an area to hold an inductive loop, the inductive loop disposed in a foot of a base configured to be placed on a surface, the inductive loop parallel to the surface, the base including an upright member extending from the foot having a first end coupled to the base and a second end coupled to a computer display.

31. The apparatus as in claim 30, wherein the means for generating the magnetic power transfer field comprises a LC circuit including the inductive loop and a capacitor.

32. The apparatus as in claim 30, wherein the magnetic power transfer field is configured to transmit electrical power at a polarization parallel to a surface of a desktop that supports the computer display.