Wireless charging with multiple power receiving facilities on a wireless device
First Claim
1. An integrated circuit configured to receive wireless power from multiple antennas over radio-frequency transmissions, the integrated circuit comprising:
- multiple antenna ports configured to receive wireless power from two or more antennas, and configured to transmit a beacon signal to a transmitter,wherein the beacon signal includes a calibration signal for receiving power,wherein the calibration signal is used by the transmitter to generate a waveform for transmitting radio frequency (RF) power to a client device physically and electrically coupled to the integrated circuit, andwherein the transmitter is configured to wirelessly transmit RF power using multiple open paths from the transmitter to the client device;
a detection unit for each of the multiple antenna ports and configured to detect received wireless power;
a rectifying unit for each of the multiple antenna ports and configured to convert received wireless power in RF power to direct current (DC) power, and to output the DC power to an external device;
a communication unit configured to filter data from the received wireless power;
a beacon signal unit configured to transmit the beacon signal to the transmitter to thereby permit the transmitter to determine an identity and location of the integrated circuit,wherein the beacon signal unit is configured to transmit the beacon signal according to a beacon signaling schedule,wherein the beacon signaling schedule is partially based on a time slot when the transmitter is to send wireless RF power to the client device; and
a control unit configured to switch the integrated circuit between filtering data, rectifying RF power, and transmitting a beacon signal,wherein the control unit is configured to send a predetermined voltage to a switch configured to cause at least one of the multiple antenna ports to switch from transmitting the beacon signal to receiving wireless RF power.
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Accused Products
Abstract
The disclosed system utilizes multiple wireless power receivers (antennas and or paths) for receiving power. The disclosed system includes a chip, such as an application specific chip (ASICs) connectable to multiple antennas and units to convert radio frequency (RF) power into direct current (DC) power. The disclosed system can also include antennas that are used to receiving power, communicate, and send a beacon signal. The disclosed system also comprises a mobile electronic device to receive wireless power using multiple antennas connected or coupled to multiple wireless power receivers.
313 Citations
20 Claims
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1. An integrated circuit configured to receive wireless power from multiple antennas over radio-frequency transmissions, the integrated circuit comprising:
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multiple antenna ports configured to receive wireless power from two or more antennas, and configured to transmit a beacon signal to a transmitter, wherein the beacon signal includes a calibration signal for receiving power, wherein the calibration signal is used by the transmitter to generate a waveform for transmitting radio frequency (RF) power to a client device physically and electrically coupled to the integrated circuit, and wherein the transmitter is configured to wirelessly transmit RF power using multiple open paths from the transmitter to the client device; a detection unit for each of the multiple antenna ports and configured to detect received wireless power; a rectifying unit for each of the multiple antenna ports and configured to convert received wireless power in RF power to direct current (DC) power, and to output the DC power to an external device; a communication unit configured to filter data from the received wireless power; a beacon signal unit configured to transmit the beacon signal to the transmitter to thereby permit the transmitter to determine an identity and location of the integrated circuit, wherein the beacon signal unit is configured to transmit the beacon signal according to a beacon signaling schedule, wherein the beacon signaling schedule is partially based on a time slot when the transmitter is to send wireless RF power to the client device; and a control unit configured to switch the integrated circuit between filtering data, rectifying RF power, and transmitting a beacon signal, wherein the control unit is configured to send a predetermined voltage to a switch configured to cause at least one of the multiple antenna ports to switch from transmitting the beacon signal to receiving wireless RF power. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for receiving wireless power at a client device, the method comprising:
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at the client device, transmitting, from at least one of multiple antennas of the client device, a beacon signal, wherein the beacon signal includes a calibration signal for receiving power at the client device, wherein the calibration signal is used by a transmitter to generate a waveform for transmitting radio frequency (RF) power to the client device, wherein the transmitter is configured to wirelessly transmit RF power using multiple open paths from the transmitter to the client device, and wherein the beacon signal is transmitted according to a beacon schedule, wherein the beacon schedule is partially based on a time slot when the transmitter is to send wireless RF power to the client device, and wherein the transmitter having received the beacon signal determines an identity and location of the client device;
at the client device, receiving, via the multiple antennas, wireless power in a received RF power;
at the client device, sending a predetermined voltage to switch at least one of the multiple antennas from receiving wireless RF power to transmitting a beacon signal;
at the client device, converting the received wireless power to direct current (DC) power to power the client device;
at the client device, filtering data from the received wireless power; and
at the client device, sending the filtered data to a processor in the client device. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. An apparatus for supplying power to a client device, the apparatus comprising:
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multiple antennas configured to receive wireless power, and configured to transmit a beacon signal to a transmitter, wherein the beacon signal includes a calibration signal for receiving power, wherein the calibration signal is used by the transmitter to generate a waveform for transmitting radio frequency (RF) power to a client device, and wherein the transmitter is configured to wirelessly transmit RF power using multiple open paths from the transmitter to the client device; a detection circuit for each of the multiple antennas and configured to detect power wirelessly received from the transmitter; a rectifying circuit for each of the multiple antennas and configured to convert the received wireless RF power to direct current (DC) power; a power storage device, coupled to the rectifying circuit, and receiving the DC power; a communication circuit configured to filter data from the received wireless power; a beacon signal circuit configured to transmit the beacon signal to the transmitter to thereby permit the transmitter to determine an identity and location of the client device, wherein the beacon signal circuit is configured to transmit he beacon signal according to a beacon signaling schedule; a switch configured to switch at least one of the multiple antennas from transmitting the beacon signal to receiving RF power, wherein the switch is configured to receive a predetermined voltage signal that causes the switch to switch the at least one of the multiple antennas from transmitting the beacon signal to receiving RF power; and a processor coupled to the detection circuit and the communication circuit. - View Dependent Claims (17, 18, 19, 20)
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Specification