Self optimizing antenna for NFC and wireless charging
First Claim
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1. A system comprising:
- a charging apparatus having a controller and a power transmitter, anda server in communication with the charging apparatus;
wherein the controller is configured to;
receive information, including device information that includes a device identifier, from a device using out-of-band signaling,determine a device position of the device placed on the charging apparatus relative to the power transmitter based on at least one signal received from the device,determine whether the device position is an optimal position for charging of the device if a strength of an electromagnetic field at the device is within a predetermined strength,provide feedback indicative of the determination of the device position relative to the optimal position;
determine whether the power transmitter is at an optimal transmitter position if the power transmitter and the device are within a predefined area tolerance of each other; and
control charging of the device by the power transmitter when the power transmitter is at the optimal transmitter position;
wherein the server is configured to;
receive the device identifier from the charging apparatus, andtransmit to the charging apparatus account information associated with the device identifier, including a subscription to which the device is subscribed, the subscription including an authorized duration of charging;
wherein the power transmitter is configured to transmit wireless power to a receiver of the device using in-band signaling according to the subscription, and to stop transmitting wireless power to the receiver when a sum of charge durations has reached the authorized duration of charging;
wherein the in-band signaling allows for data to be sent within a same channel used for voice transmission, and out-of-band signaling is on a different channel not used for voice transmission; and
wherein the authorized duration of charging is a total amount of charging authorized in a month.
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Abstract
A charging system may include a charging apparatus having a controller and a power transmitter. The controller may be configured to determine a device position relative to the controller based on at least one signal received from the device. The controller may also be configured to determine whether the device position is at an optimal position, and provide feedback indicative of the device position.
38 Citations
20 Claims
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1. A system comprising:
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a charging apparatus having a controller and a power transmitter, and a server in communication with the charging apparatus; wherein the controller is configured to; receive information, including device information that includes a device identifier, from a device using out-of-band signaling, determine a device position of the device placed on the charging apparatus relative to the power transmitter based on at least one signal received from the device, determine whether the device position is an optimal position for charging of the device if a strength of an electromagnetic field at the device is within a predetermined strength, provide feedback indicative of the determination of the device position relative to the optimal position; determine whether the power transmitter is at an optimal transmitter position if the power transmitter and the device are within a predefined area tolerance of each other; and control charging of the device by the power transmitter when the power transmitter is at the optimal transmitter position; wherein the server is configured to; receive the device identifier from the charging apparatus, and transmit to the charging apparatus account information associated with the device identifier, including a subscription to which the device is subscribed, the subscription including an authorized duration of charging; wherein the power transmitter is configured to transmit wireless power to a receiver of the device using in-band signaling according to the subscription, and to stop transmitting wireless power to the receiver when a sum of charge durations has reached the authorized duration of charging; wherein the in-band signaling allows for data to be sent within a same channel used for voice transmission, and out-of-band signaling is on a different channel not used for voice transmission; and wherein the authorized duration of charging is a total amount of charging authorized in a month. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method comprising:
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transmitting information, including device information that includes a device identifier, from a device having a processor and a memory to a charging apparatus over an out-of-band communications channel; receiving, by a server from the charging apparatus, the device identifier; transmitting, by the server to the charging apparatus, account information associated with the device identifier, including a subscription to which the device is subscribed, the subscription including an authorized duration of charging; receiving an electromagnetic field at the device, the electromagnetic field being received from the charging apparatus over an in-band communications channel based on the subscription until a sum of charge durations has reached the authorized duration of charging; determining the strength of the electromagnetic field; determining, based on the strength of the electromagnetic field, a device position relative to the charging apparatus; determining whether the device position is at an optimal position for charging if the strength of the electromagnetic field is within a predetermined strength; providing feedback to a device user indicative of the determination of the device position; determining a transmitter position; determining whether the transmitter position is at an optimal transmitter position if the device position and the transmitter position are within a predefined area tolerance of each other; and controlling charging of the device by the power transmitter when the transmitter position is at the optimal transmitter position; wherein the authorized duration of charging is a total amount of charging authorized in a month. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A non-transitory computer-readable medium tangibly embodying computer-executable instructions of a software program, the software program being executable by a processor of a computing device to provide operations comprising:
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transmitting information, including device information of a device placed on the charging apparatus, to a charging apparatus over an out-of-band communications channel, the device information including a device identifier with which account information is associated, including a subscription to which a device is subscribed, the subscription including an authorized duration of charging; receiving an electromagnetic field from the charging apparatus over an in-band communications channel based on the subscription until a sum of charge durations has reached the authorized duration of charging; determining the strength of the electromagnetic field; determining, based on the strength of the electromagnetic field, a device position of the device; determining whether the device position is an optimal device position for charging of the device if the strength of the electromagnetic field is within a predetermined strength; providing feedback indicative of the determination of the device position relative to the optimal position; determining a transmitter position; determining whether the transmitter position is at an optimal transmitter position if the device position and the transmitter position are within a predefined area tolerance of each other; and controlling charging of the device by the power transmitter when the transmitter position is at the optimal transmitter position; wherein the authorized duration of charging is a total amount of charging authorized in a month. - View Dependent Claims (20)
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Specification