WIRELESS POWER HARVESTING AND TRANSMISSION WITH HETEROGENEOUS SIGNALS

• US 20160315506A1
• Filed: 03/23/2016
• Published: 10/27/2016
• Est. Priority Date: 06/01/2007
• Status: Active Grant

• Current Assignee: WiTricity Corporation
• Original Assignee: WiTricity Corporation
• Inventors: John, Michael Sasha
• Granted Patent: US 9,843,230 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61N 1/37223 Circuits for electromagnetic coupling
• CPC Class Codes: A61N 1/37252 Details of algorithms or data aspects of communication system, e.g. handshaking, transmitting specific data or segmenting data
• CPC Class Codes: A61N 1/3785 generated by biological activity or substance, e.g. body movement
• CPC Class Codes: A61N 1/3787 from an external energy source
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/20 using microwaves or radio frequency waves
• CPC Class Codes: H02J 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H04B 1/40 Circuits
• CPC Class Codes: H04B 5/77 for interrogation
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

A wireless power transmission system, according to some implementations, includes: an antenna configured to transmit radio frequency signals for both data transmission and power transmission; and a wireless device coupled with the antenna, the wireless device configured to cause the antenna to transmit the radio frequency signals for the data transmission and the power transmission; wherein the wireless device includes a communication module configured to perform data transmission operations with respect to power transmission operations according to a temporal schedule; and wherein the temporal schedule specifies occurrence of the data transmission operations and the power transmission operations at different intervals.

Claims

1-20. -20. (canceled)

21. A wireless power transmission system comprising:

an antenna configured to transmit radio frequency signals for both data transmission and power transmission; and

a wireless device coupled with the antenna, the wireless device configured to cause the antenna to transmit the radio frequency signals for the data transmission and the power transmission;

wherein the wireless device comprises a communication module configured to perform data transmission operations with respect to power transmission operations according to a temporal schedule; and

wherein the temporal schedule specifies occurrence of the data transmission operations and the power transmission operations at different intervals.

22. The wireless power transmission system of claim 21, wherein the temporal schedule specifies different durations for the power transmission operations as compared to the data transmission operations, and the different intervals are non-overlapping.

23. The wireless power transmission system of claim 22, wherein the antenna is a single antenna used for both the data transmission and the power transmission.

24. The wireless power transmission system of claim 22, wherein the antenna comprises two different antennae.

25. The wireless power transmission system of claim 21, wherein the radio frequency signals for the data transmission and the power transmission have overlapping spectral characteristics, and wherein the wireless device is configured to use the antenna to communicate different types of data signals.

26. The wireless power transmission system of claim 25, wherein the different intervals comprise a power transmission interval, a data sending interval, and a data receiving interval.

27. The wireless power transmission system of claim 26, wherein the wireless device is configured to send and receive data for a specific period in response to a signal indicating an event.

28. The wireless power transmission system of claim 25, wherein the wireless device is configured to alternate between power transmission and two-way data communication.

29. The wireless power transmission system of claim 21, comprising a memory storing an operating protocol defining the different intervals.

30. The wireless power transmission system of claim 21, wherein the wireless device is configured to activate filtering circuitry to isolate electrical interference between the data transmission operations and the power transmission operations.

31. The wireless power transmission system of claim 28, wherein the different intervals for the data transmission operations and the power transmission operations have some overlap.

32. The wireless power transmission system of claim 28, wherein the communication module comprises RFID (radio frequency identification) technology circuitry.

33. A method comprising:

scheduling, at a wireless device in a wireless power transmission system, data transmission operations with respect to power transmission operations according to a temporal schedule; and

transmitting, in accordance with the scheduled data transmission and power transmission operations and using an antenna coupled with the wireless device, radio frequency signals for both the data transmission and the power transmission;

wherein the temporal schedule specifies occurrence of the data transmission operations and the power transmission operations at different intervals.

34. The method of claim 33, wherein the radio frequency signals for the data transmission and the power transmission have overlapping spectral characteristics, and wherein the scheduling comprises specifying different durations for the power transmission operations as compared to the data transmission operations, and the different intervals are non-overlapping.

35. The method of claim 33, wherein the transmitting comprises using a single antenna for both the data transmission and the power transmission.

36. The method of claim 33, wherein the transmitting comprises using two different antennae.

37. The method of claim 33, wherein the transmitting comprises using the antenna to communicate different types of data signals.

38. The method of claim 37, wherein the transmitting comprises transmitting power in a first of the different intervals, sending data in a second of the different intervals, and receiving data in a third of the different intervals.

39. The method of claim 38, wherein the transmitting comprises sending and receiving data for a specific period in response to a signal indicating an event.

40. The method of claim 33, wherein the transmitting comprises alternating between power transmission and two-way data communication.

41. The method of claim 33, wherein the scheduling comprises loading a default operating protocol stored in a memory, the default operating protocol defining the different intervals.

42. The method of claim 33, comprising activating filtering circuitry in the wireless device to isolate electrical interference between the data transmission operations and the power transmission operations.

43. The method of claim 42, wherein the different intervals for the data transmission operations and the power transmission operations have some overlap.

44. The method of claim 33, wherein transmitting the radio frequency signals for the data transmission comprises transmitting RFID (radio frequency identification) technology signals.