Protocols for authenticated wireless power transmission
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01F-027/42
H01F-037/00
H02J-005/00
H02J-007/02
출원번호
US-0584336
(2014-12-29)
등록번호
US-10103552
(2018-10-16)
발명자
/ 주소
Leabman, Michael A.
Brewer, Gregory Scott
출원인 / 주소
ENERGOUS CORPORATION
대리인 / 주소
Morgan, Lewis & Bockius LLP
인용정보
피인용 횟수 :
0인용 특허 :
195
초록▼
One example embodiment of a wireless power transmitter described herein includes: a plurality of radio frequency (RF) antennas configured to transmit RF power waves such that they converge to form controlled constructive interference. The example embodiment also includes: a micro-controller configur
One example embodiment of a wireless power transmitter described herein includes: a plurality of radio frequency (RF) antennas configured to transmit RF power waves such that they converge to form controlled constructive interference. The example embodiment also includes: a micro-controller configured to: receive from a user device a coded signature signal (and the user device is coupled with a receiver), authenticate the receiver as authorized to receive wireless power from the transmitter according to the coded signature signal, in accordance with determining that the receiver is authorized, obtain from the receiver a set of user-defined restrictions used to determine when wireless power may be transmitted to the receiver; and cause the RF antennas to transmit the RF power waves when the set of user-defined restrictions indicate that wireless power may be transmitted. The example embodiment also includes: a communication component configured to receive from the receiver the coded signature signal.
대표청구항▼
1. A receiver device comprising: a communications radio configured to: send a coded signature signal to a wireless power transmitter, wherein the coded signature signal includes information identifying the receiver device; andsend a set of user-defined restrictions to the wireless power transmitter
1. A receiver device comprising: a communications radio configured to: send a coded signature signal to a wireless power transmitter, wherein the coded signature signal includes information identifying the receiver device; andsend a set of user-defined restrictions to the wireless power transmitter after the receiver device has been authorized to receive wireless power from the wireless power transmitter; andat least one antenna configured to receive two or more radio frequency (RF) power waves from the wireless power transmitter that converge to form controlled constructive interference, wherein: the wireless power transmitter transmits the two or more RF power waves to the receiver device after determining that none of the user-defined restrictions in the set of user-defined restrictions are present at the receiver device;the two or more RF power waves are transmitted with one or more RF power wave characteristics that are determined based on information received from the receiver device; andenergy from the two or more RF power waves received by the at least one antenna is used to power the receiver device. 2. The receiver device of claim 1, wherein the set of user-defined restrictions includes at least one of: a user-defined minimum battery level of the receiver device to be reached before the wireless power transmitter delivers power to the receiver device, and a user-defined restriction that the wireless power transmitter is forbidden from delivering power to the receiver device upon determining that the receiver device is performing a specific operation. 3. The receiver device of claim 2, wherein the specific operation is one of: (i) the receiver device is making a telephone call, and (ii) the receiver device is communicating with a device, different from the wireless power transmitter, using short-range RF waves. 4. The receiver device of claim 1, wherein the coded signature signal is encoded using at least one of: delay encoding, orthogonal frequency-division multiplexing, and code division multiplexing. 5. The receiver device of claim 1, wherein: the communications radio is further configured to send a characteristics signal to the wireless power transmitter, wherein: the characteristics signal includes information identifying one or more characteristics of the receiver device; andthe wireless power transmitter determines the one or more RF power wave characteristics for the two or more RF power waves based at least in part on the one or more characteristics of the receiver device. 6. The receiver device of claim 5, wherein the communications radio sends the characteristics signal to the wireless power transmitter after the receiver device has been authorized to receive wireless power from the wireless power transmitter. 7. The receiver device of claim 5, wherein the one or more characteristics of the receiver device include at least one of: a device type of the receiver device, a manufacturer of the receiver device, a serial number of the receiver device, a total power required by the receiver device, and a battery level of the receiver device. 8. The receiver device of claim 5, wherein the information included in the characteristics signal is not location information. 9. The receiver device of claim 1, wherein: the communications radio is a short-range radio; andthe short-range radio broadcasts short-range RF waves to communicate with the wireless power transmitter. 10. The receiver device of claim 1, wherein the receiver device includes: a wireless power receiver; andan electronic device coupled to the wireless power receiver. 11. The receiver device of claim 1, wherein the receiver device is configured to receive, from a user via inputs provided at the receiver device, the set of user-defined restrictions. 12. A method of receiving wirelessly delivered power, the method comprising: at a receiver device having a communications radio and at least one antenna: sending, by the communications radio, a coded signature signal to a wireless power transmitter, wherein the coded signature signal includes information identifying the receiver device;sending, by the communications radio, a set of user-defined restrictions to the wireless power transmitter after the receiver device has been authorized to receive wireless power from the wireless power transmitter; andreceiving, by the least one antenna, two or more radio frequency (RF) power waves from the wireless power transmitter that converge to form controlled constructive interference, wherein: the wireless power transmitter transmits the two or more RF power waves to the receiver device after determining that none of the user-defined restrictions in the set of user-defined restrictions are present at the receiver device;the two or more RF power waves are transmitted with one or more RF power wave characteristics that are determined based on information received from the receiver device; andenergy from the two or more RF power waves received by the at least one antenna is used to power the receiver device. 13. The method of claim 12, wherein the set of user-defined restrictions includes at least one of: a user-defined minimum battery level of the receiver device to be reached before the wireless power transmitter delivers power to the receiver device, and a user-defined restriction that the wireless power transmitter is forbidden from delivering power to the receiver device upon determining that the receiver device is performing a specific operation. 14. The method of claim 13, wherein the specific operation is one of: (i) the receiver device is making a telephone call, and (ii) the receiver device is communicating with a device, different from the wireless power transmitter, using short-range RF waves. 15. The method of claim 12, further comprising, at the receiver device: sending, by the communications radio, a characteristics signal to the wireless power transmitter, wherein: the characteristics signal includes information identifying one or more characteristics of the receiver device; andthe wireless power transmitter determines the one or more RF power wave characteristics for the two or more RF power waves based at least in part on the one or more characteristics of the receiver device. 16. The method of claim 15, wherein the communications radio sends the characteristics signal to the wireless power transmitter after the receiver device has been authorized to receive wireless power from the wireless power transmitter. 17. The method of claim 15, wherein the one or more characteristics of the receiver device include at least one of: a device type of the receiver device, a manufacturer of the receiver device, a serial number of the receiver device, a total power required by the receiver device, and a battery level of the receiver device. 18. The method of claim 12, wherein the receiver device includes: a wireless power receiver; andan electronic device coupled to the wireless power receiver. 19. The method of claim 12, further comprising, at the receiver device: receiving, from a user via inputs provided at the receiver device, the set of user-defined restrictions. 20. A non-transitory computer-readable storage medium storing executable instructions that, when executed by a receiver device with a communications radio, at least one antenna, and one or more processors, cause the receiver device to: send, by the communications radio, a coded signature signal to a wireless power transmitter, wherein the coded signature signal includes information identifying the receiver device;send, by the communications radio, a set of user-defined restrictions to the wireless power transmitter after the receiver device has been authorized to receive wireless power from the wireless power transmitter; andreceive, by the least one antenna, two or more radio frequency (RF) power waves from the wireless power transmitter that converge to form controlled constructive interference, wherein: the wireless power transmitter transmits the two or more RF power waves to the receiver device after determining that none of the user-defined restrictions in the set of user-defined restrictions are present at the receiver device;the two or more RF power waves are transmitted with one or more RF power wave characteristics that are determined based on information received from the receiver device; andenergy from the two or more RF power waves received by the at least one antenna is used to power the receiver device.
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