Predictive phase tracking in wireless power delivery environments

• US 10,250,084 B2
• Filed: 02/28/2017
• Issued: 04/02/2019
• Est. Priority Date: 02/28/2017
• Status: Active Grant

• Current Assignee: Ossia, Inc.
• Original Assignee: Ossia, Inc.
• Inventors: Moghaddam, Ahmad, Zeine, Hatem Ibrahim
• Primary Examiner(s): Amaya, Carlos D
• Application Number:
  US15/444,979
• Publication Number:
  US 20180248399A1
• Time in Patent Office: 763 Days
• Field of Search: 307104
• 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 50/40 using two or more transmitting or receiving devices H02J50/50 takes precedence
• 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: H02J 50/90 involving detection or optimisation of position, e.g. alignment
• CPC Class Codes: H02J 7/00034 Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
• CPC Class Codes: H04W 4/029 Location-based management or tracking services

Abstract

Systems and methods are described for receiving wireless power and providing wired power. In some embodiments, a predictive phase estimation apparatus comprises a transceiver module configured to receive a plurality of beaconing signals from a wireless client during a beacon cycle. The predictive phase estimation apparatus also comprises a phase compensation module configured to store the received plurality of beaconing signals, a phase predictor module is coupled to the transceiver module and configured to calculate predictive phases based on the received plurality of beaconing signals and based on beaconing signals received from the wireless client prior to the beacon cycle, and a signal converter coupled to the transceiver module. The signal converter is configured to form transmission signals based on the predictive phases and supply the transmission signals to the transceiver module. The transceiver module also transmits the transmission signals for delivery of wireless power to the wireless client.

Claims

1. A predictive phase estimation apparatus comprising:

a transceiver module configured to receive a plurality of beaconing signals from a wireless client during a beacon cycle, the wireless client moving from a first position to a second position;

a phase compensation module configured to store the received plurality of beaconing signals;

a phase predictor module coupled to the transceiver module and configured to calculate predictive phases based on the received plurality of beaconing signals and based on beaconing signals received from the wireless client prior to the beacon cycle;

a signal converter coupled to the transceiver module and configured to;

form transmission signals based on the predictive phases; and

supply the transmission signals to the transceiver module; and

wherein the transceiver module is further configured to transmit the transmission signals for delivery of wireless power to the wireless client.

2. The predictive phase estimation apparatus of claim 1 wherein the phase compensation module is further configured to calculate the predictive phases based on a phase estimation calculation.

3. The predictive phase estimation apparatus of claim 2 wherein the phase compensation module is further configured to:

compare the predictive phases to historical predicted phases to phases of the beaconing signals received from the wireless client prior to the beacon cycle; and

modify the phase estimation calculation based on the comparison.

4. The predictive phase estimation apparatus of claim 3 wherein the phase compensation module is further configured to store the phases of the beaconing signals received from the wireless client prior to the beacon cycle.

5. The predictive phase estimation apparatus of claim 1 further comprising an antenna array board comprising a plurality of antennas configured to receive the plurality of beaconing signals.

6. The predictive phase estimation apparatus of claim 5 wherein the phase predictor module, in being configured to calculate the predictive phases based on the received plurality of beaconing signals, is configured to calculate the predictive phases based on a subset of the plurality of beaconing signals received from less than all of the plurality of antennas.

7. The predictive phase estimation apparatus of claim 1 wherein the phase compensation module is further configured to substitute a beaconing signal of the received plurality of beaconing signals with data based on at least one of the beaconing signals received from the wireless client prior to the beacon cycle.

8. A predictive phase estimation system comprising:

a master bus controller (MBC) board comprising;

a transceiver configured to receive a plurality of beaconing signals from a wireless client during a beacon cycle;

a phase compensator configured to store the received plurality of beaconing signals;

a phase predictor coupled to the transceiver and configured to calculate predictive phases based on the received plurality of beaconing signals and based on beaconing signals received from the wireless client prior to the beacon cycle;

a signal converter coupled to the transceiver and configured to;

form transmission signals based on the predictive phases; and

supply the transmission signals to the transceiver; and

wherein the transceiver is further configured to transmit the transmission signals for delivery of wireless power to the wireless client.

9. The predictive phase estimation system of claim 8 wherein the phase compensator is further configured to calculate the predictive phases based on a phase estimation calculation.

10. The predictive phase estimation system of claim 9 wherein the phase compensator is further configured to:

compare the predictive phases to historical predicted phases to phases of the beaconing signals received from the wireless client prior to the beacon cycle; and

modify the phase estimation calculation based on the comparison.

11. The predictive phase estimation system of claim 10 wherein the phase compensator is further configured to store the phases of the beaconing signals received from the wireless client prior to the beacon cycle.

12. The predictive phase estimation system of claim 8 further comprising an antenna array board comprising a plurality of antennas configured to receive the plurality of beaconing signals.

13. The predictive phase estimation system of claim 12 wherein the phase predictor, in being configured to calculate the predictive phases based on the received plurality of beaconing signals, is configured to calculate the predictive phases based on a subset of the plurality of beaconing signals received from less than all of the plurality of antennas.

14. The predictive phase estimation system of claim 8 wherein the phase compensator is further configured to substitute a beaconing signal of the received plurality of beaconing signals with data based on at least one of the beaconing signals received from the wireless client prior to the beacon cycle.

15. A method of predictive phase estimation comprising:

receiving, by a transceiver, a plurality of beaconing signals from a wireless client during a beacon cycle;

storing the received plurality of beaconing signals;

calculating predictive phases based on the received plurality of beaconing signals and based on beaconing signals received from the wireless client prior to the beacon cycle;

forming transmission signals based on the predictive phases;

supplying the transmission signals to the transceiver; and

transmitting the transmission signals for delivery of wireless power to the wireless client.

16. The method of claim 15 further comprising calculating the predictive phases based on a phase estimation calculation.

17. The method of claim 16 further comprising:

comparing the predictive phases to historical predicted phases to phases of the beaconing signals received from the wireless client prior to the beacon cycle; and

modifying the phase estimation calculation based on the comparison.

18. The method of claim 17 further comprising storing the phases of the beaconing signals received from the wireless client prior to the beacon cycle.

19. The method of claim 15 further comprising receiving the plurality of beaconing signals via an antenna array board comprising a plurality of antennas.

20. The method of claim 19 wherein calculating the predictive phases based on the received plurality of beaconing signals comprises calculating the predictive phases based on a subset of the plurality of beaconing signals received from less than all of the plurality of antennas.