Abstract: A transmitter assembly is useful in optimizing the delivery of wireless power to a plurality of receivers. Each receiver measures its own battery need for power and transmits that measurement as a request to the transmitter. The transmitter is configured to normalize and compare battery need requests. The transmitter then allocates pulses of wireless power among the requesting receivers according to their battery need.

Abstract: A method is implemented by a wireless power system. The wireless power system includes wireless power transmitters and wireless power receivers. The method includes receiving, by the wireless power transmitters, beacon signals transmitted from wireless power receivers. The method includes synchronizing, by the wireless power transmitters, a transmission of high power signals. The method includes transmitting, by the wireless power transmitters, the high power signals as synchronized to the wireless power receivers. Each transmitter of the plurality of wireless power transmitters individually transmits a corresponding signal of the plurality of high power signals.

Abstract: A method is implemented by a wireless power system. The wireless power system includes a wireless power transmitter and a wireless power receiver. The method includes receiving, by the wireless power transmitter of the wireless power system, beacon signals transmitted from the wireless power receiver of the wireless power system. The method includes adding, by the wireless power transmitter, phases for each port of the wireless power receiver based upon the beacon signals. The method includes generating, by the wireless power transmitter, a high power signal based on adding of the phases. The method includes transmitting, by the wireless power transmitter, the high power signal to the wireless power receiver.

Abstract: A method is implemented by a power receiver for authentication with a power transmitter. The method can include selecting, by the power receiver, a beacon from an encryption scheme. The power receiver can further encrypt the beacon to generate an encrypted beacon signal and transmit the encrypted beacon signal to the power transmitter to cause the authentication with the power transmitter. In turn, the power receiver can receive power from the power transmitter after the authentication.

Abstract: A method is implemented by a wireless power system. The wireless power system includes a wireless power transmitter and a wireless power receiver. The method includes receiving, by the wireless power transmitter of the wireless power system, beacon signals transmitted from the wireless power receiver of the wireless power system. The method includes adding, by the wireless power transmitter, phases for each port of the wireless power receiver based upon the beacon signals. The method includes generating, by the wireless power transmitter, a high power signal based on adding of the phases. The method includes transmitting, by the wireless power transmitter, the high power signal to the wireless power receiver.

Abstract: A method is provided. The method is for power delivery in a wireless power system including a transmitter and a receiver. The method includes receiving, by the receiver, a focused power transmitted by the transmitter and directly measuring, by the receiver, a radio frequency (RF) power level of the focused power. The method includes determining whether the power level of the focused power exceeds a threshold and performing operations based upon the power level exceeding or not exceeding the threshold.

Abstract: The technology described herein relates to techniques for calibrating wireless power transmission systems for operation in multipath wireless power delivery environments. In an implementation, a method of calibrating a wireless power transmission system for operation in a multipath environment is disclosed. The method includes characterizing a receive path from a calibration antennae element to a first antennae element of a plurality of antennae elements of the wireless power transmission system, characterizing a transmit path from the first antennae element to the calibration antennae element, and comparing the transmit path to the receive path to determine a calibration value for the first antennae element in the multipath environment.

Abstract: Systems and methods for wireless power transmission. A method includes identifying timing information of a signal received by at least one antenna over two or more incoming propagation paths. The method includes determining, based on the timing information, transmission settings for use by the at least one antenna to transmit a responsive signal to a location from which the signal originated and over at least one reverse propagation path of the two or more incoming propagation paths.

Abstract: The technology described herein relates to techniques for calibrating wireless power transmission systems for operation in multipath wireless power delivery environments. In an implementation, a method of calibrating a wireless power transmission system for operation in a multipath environment is disclosed. The method includes characterizing a receive path from a calibration antennae element to a first antennae element of a plurality of antennae elements of the wireless power transmission system, characterizing a transmit path from the first antennae element to the calibration antennae element, and comparing the transmit path to the receive path to determine a calibration value for the first antennae element in the multipath environment.

Abstract: A system includes at least one antenna and a controller. The controller is configured to identify a phase of a first signal received by the at least one antenna from a wireless device. The controller is configured to determine transmission settings for the at least one antenna based on the identified phase. The controller is configured to generate, according to the transmission settings, a second signal for focusing on a wireless device. A method includes identifying a phase of a first signal received by a first transceiver from a second transceiver. The method includes determining transmission settings for the first transceiver based on the identified phase. The method includes generating, according to the transmission settings, a second signal for focusing on the second transceiver. Embodiments improve the power efficiency of wireless signal transmission.

Abstract: In retrodirective wireless power delivery environments wireless power receivers generate and send beacon signals that are received by multiple antennas of a wireless power transmission system. The beacon signals provide the charger with timing information for wireless power transfers and also indicate directionality of the incoming signal. As discussed herein, the directionality information is employed when transmitting in order to focus energy (e.g., power wave delivery) on individual wireless power receiver clients. Techniques are described herein for reducing the burden of sampling the beacon signals across the multiple antennas and determining the directionality of the incoming wave. In some embodiments, the techniques leverage previously calculated values to simplify the receiver sampling.

Abstract: Various wireless power transmission systems are provided for sensing an environment, e.g., using a neural network. For instance, phase information corresponding to wireless power transmission is input into a neural network framework, and then, distance information representative of a distance from a wireless power transmitter to an object is obtained as output from the neural network framework. Based on the distance information, a power of a subsequent wireless power transmission can be modified, or an environment comprising the object can be mapped.

Abstract: The wireless power transmission is a system for providing wireless charging and/or primary power to electronic/electrical devices via microwave energy. The microwave energy is focused to a location by a power transmitter having one or more adaptively-phased microwave array emitters. Rectennas within the device to be charged receive and rectify the microwave energy and use it for battery charging and/or for primary power.

Abstract: The wireless power transmission is a system for providing wireless charging and/or primary power to electronic/electrical devices via microwave energy. The microwave energy is focused to a location by a power transmitter having one or more adaptively-phased microwave array emitters. Rectennas within the device to be charged receive and rectify the microwave energy and use it for battery charging and/or for primary power.

Abstract: Devices, methods and computer readable media relating to wireless signaling and wireless power transmission. A method according to the present technology may include the step of sensing a power of the wireless signal received via a plurality of antennas from a device positioned in a wireless signaling environment. The method may include the step of transducing energy of the wireless signal to an electric current. The method may include the step of adjusting a voltage of the electric current according to the sensing.

Abstract: Various wireless power transmission systems are provided for sensing an environment, e.g., using a neural network. For instance, phase information corresponding to wireless power transmission is input into a neural network framework, and then, distance information representative of a distance from a wireless power transmitter to an object is obtained as output from the neural network framework. Based on the distance information, a power of a subsequent wireless power transmission can be modified, or an environment comprising the object can be mapped.

Abstract: The disclosed technology relates to wireless communication and wireless power transmission. In some implementations, the disclosed technology is directed to an integrated circuit having a transmitter that transmits radio frequency (RF) based wireless power and receives signals for detecting the location of a client device. The disclosed technology is also directed to an integrated circuit for a client device that receives power from the transmitter and transmits beacon signals, which the transmitter can use to locate the client device.

Abstract: The wireless power transmission is a system for providing wireless charging and/or primary power to electronic/electrical devices via microwave energy. The microwave energy is focused to a location by a power transmitter having one or more adaptively-phased microwave array emitters. Rectennas within the device to be charged receive and rectify the microwave energy and use it for battery charging and/or for primary power.

Abstract: The technology described herein relates to techniques for calibrating wireless power transmission systems for operation in multipath wireless power delivery environments. In an implementation, a method of calibrating a wireless power transmission system for operation in a multipath environment is disclosed. The method includes characterizing a receive path from a calibration antennae element to a first antennae element of a plurality of antennae elements of the wireless power transmission system, characterizing a transmit path from the first antennae element to the calibration antennae element, and comparing the transmit path to the receive path to determine a calibration value for the first antennae element in the multipath environment.

Abstract: The technology described herein relates to techniques for calibrating wireless power transmission systems for operation in multipath wireless power delivery environments. In an implementation, a method of calibrating a wireless power transmission system for operation in a multipath environment is disclosed. The method includes characterizing a receive path from a calibration antennae element to a first antennae element of a plurality of antennae elements of the wireless power transmission system, characterizing a transmit path from the first antennae element to the calibration antennae element, and comparing the transmit path to the receive path to determine a calibration value for the first antennae element in the multipath environment.