Wireless power transmitters that transmit at determined times based on power availability and consumption at a receiving mobile device

Patent metadata

Field	Value
Publication number	US-9935482-B1
Application number	US-201414587387-A
Country	US
Kind code	B1
Filing date	Dec 31, 2014
Priority date	Feb 6, 2014
Publication date	Apr 3, 2018
Grant date	Apr 3, 2018

Abstract

The embodiments described herein include a transmitter that transmits a power transmission signal (e.g., radio frequency (RF) signal waves) to create a three-dimensional pocket of energy. At least one receiver can be connected to or integrated into electronic devices and receive power from the pocket of energy. The transmitter can locate the at least one receiver in a three-dimensional space using a communication medium (e.g., Wi-Fi technology) and use this medium to monitor the electronic device. The transmitter generates a waveform to create a pocket of energy around each of the at least one receiver. The transmitter uses an algorithm to direct, focus, and control the waveform in three dimensions. The receiver can convert the transmission signals (e.g., RF signals) into electricity for powering an electronic device. Accordingly, the embodiments for wireless power transmission can allow powering and charging a plurality of electrical devices without wires.

First claim

What is claimed is:

1. A method for charging a mobile device, the method comprising:
at a transmitter device that includes (i) a communication component, (ii) at least two antenna elements, wherein the at least two antenna elements are distinct from the communication component, and (iii) a processor coupled to the communication component and the at least two antenna elements:
receiving, by the communication component, a communication signal from a respective mobile device of a plurality of mobile devices when a level of power available to the respective mobile device falls below a predetermined level, wherein the communication signal from the respective mobile device includes data used to determine a location of the respective mobile device, the level of power available to the respective mobile device, and a history of power consumption of the respective mobile device; and,
in response to receiving the communication signal from the respective mobile device:
determining (i) a location to form a pocket of energy and (ii) a time at which to form the pocket of energy based at least in part on the level of power available to the respective mobile device and on the history of power consumption of the respective mobile device, wherein:
the location to form the pocket of energy is determined using the data received from the respective mobile device, and
the time is also determined relative to other scheduled times at which respective pockets of energy are to be formed for other mobile devices of the plurality of mobile devices; and

at the determined time, transmitting, by the transmitter, a plurality of power transmission waves through the at least two antenna elements, wherein the plurality of power transmission waves converge in three-dimensional space near the determined location to form the pocket of energy for charging the respective mobile device.

2. The method according to claim 1 , wherein the mobile device is selected from the group consisting of: a smartphone, an audio device, and a wearable device.

3. The method according to claim 1 , wherein the mobile device is a wearable device configured to monitor one or more physiological functions of the individual wearing the wearable device.

4. The method according to claim 1 , wherein a communication connection with the mobile device for receiving the communication signal is established in response to recognition by the transmitter of one or more predetermined identifiers associated with the mobile device.

5. The method according to claim 4 , wherein the one or more predetermined identifiers associated with the mobile device include one or more of a device identifier, a user identifier, and a receiver identifier.

6. The method according to claim 1 , wherein the communication signal is received by the communication component in response to an input from a user of the mobile device.

7. The method according to claim 1 , wherein the communication signal is received by the communication component automatically when the power available to the mobile device drops below the predetermined level.

8. The method of claim 7 , wherein the communication signal is a Wi-Fi signal.

9. The method of claim 1 , wherein each power transmission wave of the plurality of power transmission waves is a radio frequency power transmission wave.

10. An apparatus for charging a mobile device, the apparatus comprising a transmitter device that includes:
a communication component,
at least two antenna elements, wherein the at least two antenna elements are distinct from the communication component, and
a processor coupled to the communication component and the at least two antenna elements; wherein:
the communication component is configured to receive a communication signal from a respective mobile device of a plurality of mobile devices when a level of power available to the respective mobile device falls below a predetermined level, wherein the communication signal from the respective mobile device includes data used to determine a location of the respective mobile device, the level of power available to the respective mobile device, and a history of power consumption of the respective mobile device; and,
in response to receiving the communication signal from the respective mobile device:
the processor is configured to determine (i) a location to form a pocket of energy and (ii) a time at which to form the pocket of energy based at least in part on the level of power available to the respective mobile device and on the history of power consumption of the respective mobile device, wherein:
the location to form the pocket of energy is determined using the data received from the respective mobile device, and
the time is also determined relative to other scheduled times at which respective pockets of energy are to be formed for other mobile devices of the plurality of mobile devices; and

the transmitter is configured to, at the determined time, transmit a plurality of power transmission waves through the at least two antenna elements, wherein the plurality of power transmission waves converge in three-dimensional space near the determined location to form the pocket of energy for charging the respective mobile device.

11. The apparatus of claim 10 , wherein the mobile device is selected from the group consisting of: a smartphone, an audio device, and a wearable device.

12. The apparatus of claim 10 , wherein the mobile device is a wearable device configured to monitor one or more physiological functions of an individual wearing the wearable device.

13. The apparatus of claim 10 , wherein a communication connection with the mobile device for receiving the communication signal is established only in response to recognition by the transmitter of one or more predetermined identifiers associated with the mobile device.

14. The apparatus of claim 13 , wherein the one or more predetermined identifiers associated with the mobile device include one or more of: a device identifier, a user identifier, and a receiver identifier.

15. The apparatus of claim 10 , wherein the communication signal is received by the communication component upon an input from a user of the mobile device.

16. The apparatus of claim 10 , wherein the communication signal is received by the communication component automatically when the power available to the mobile device drops below the predetermined level.

17. The apparatus of claim 16 , wherein the communication signal is a Wi-Fi signal.

18. The apparatus of claim 10 , wherein each power transmission wave of the plurality of power transmission waves is a radio frequency power transmission wave.

19. A non-transitory computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by an transmitter device that includes (i) a communication component, (ii) at least two antenna elements, and (iii) a processor coupled to the communication component and the at least two antenna elements, cause the transmitter device to:
receive, by the communication component, a communication signal from a respective mobile device of a plurality of mobile devices when a level of power available to the respective mobile device falls below a predetermined level, wherein the communication signal from the respective mobile device includes data used to determine a location of the respective mobile device, the level of power available to the respective mobile device, and a history of power consumption of the respective mobile device; and,
in response to receiv

Assignees

• Energous Corp

Inventors

• Leabman Michael A
• Brewer Gregory Scott

Classifications

• H02J7/42

  with electronic devices having internal batteries, e.g. mobile phones · CPC title

• H02J17/00

  Electricity · mapped topic

• H02J7/025 Primary

  Electricity · mapped topic

• H02J50/80 Primary

  involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices · CPC title

• H02J50/402

  the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas · CPC title