A power supply system configured to quickly set a phase capable of increasing power received by a power receiving device, a power supply system, and a power supply method are provided. The power supply system includes a power supply device, and a first power receiving device configured to receive a…
A battery-less, wirelessly powered localization system is described. In an embodiment, a wirelessly powered localization system, includes an external Tx antenna that generates a radio frequency (RF) signal that wirelessly powers a set of one or more localizers, an external Rx antenna that receives…
The present invention relates to a radio frequency energy harvester module. The harvester module receives an AC input voltage from a wireless power source, rectifies it into a DC voltage, and uses a piezoelectric transformer to convert this voltage into a transformed AC signal, which is…
An electric power transmission device includes: an oscillator that outputs an AC signal; a controller that outputs a control signal; and a modulator that modulates an AC signal output from the oscillator in response to the control signal. The control signal is a signal for selecting an antenna that…
The present disclosure relates to a capability determination method, comprising: receiving capability information sent by a base station; and determining the wireless charging capability of the base station according to the capability information. According to the present disclosure, the base…
In some embodiments, an apparatus includes an antenna, an energy storage device, a receiver, and an indicator assembly. The receiver may be coupled to the antenna and the energy storage device. The receiver may be configured to receive wireless energy via the antenna such that an energy storage…
The present disclosure relates to a method of performing a BLE connection for wireless charging in a wireless power transmission system, wherein a wireless power transmitter receives, in a negotiation phase, an ADD packet including a random address from a wireless power receiver. The wireless power…
Described is a multi-output tunable matching networks (MOTMN) that can transfer energy from a single input to multiple outputs with varying load impedances coupled thereto while controlling one or more of: (1) an impedance (Z) seen at the input of the MOTMN; (2) a distribution of rf power to the…
A power feeding system includes a power transmission control circuit configured to select one of a plurality of first antennas included in a plurality of antennas, and while transmitting a first power transmission signal having a fixed power transmission phase for a non-selected first antenna among…
Disclosed herein is a wireless power receiver system which includes a programable gain power amplifier configured to receive an energy input derived from the electromagnetic energy source and direct an amplified energy output signal into a power harvesting circuit within an optimal input range of…
A communication method, preferably including assigning frequency bands, determining encodings, transmitting signals, receiving signals, and/or decoding signals. The communication method can optionally include calibrating frequency bands and/or acting based on signals. A power transmission method…
A transmitter device (400), a receiver device (900), and a wireless charging method are provided. The transmitter device (400) includes a signaling modulation module (420), an energy modulation module (430), and an antenna element (440). The signaling modulation module (420) is configured to…
Power is wirelessly transferred by means of radiative coupling from a wireless power transmitter, WPTx, () to a wireless power receiver, WPRx, (). The WPTx () obtains () a set of conversion efficiency/input power relationships () by, for each one of a plurality of different waveform types ()…
A method for sending a request is performed by a terminal and includes: sending a radio charging request to a base station, wherein the radio charging request is configured to request the base station to wirelessly charge the terminal. The radio charging request may include radio charging…
Disclosed are an artificial intelligence algorithm-based wireless power transmitter, wireless power receiver, and wireless power charging system that are capable of high-speed response to environmental changes and that can optimize the power efficiency of a wireless power receiver, estimate a…
A contactless card with power harvesting unit is described. The power harvesting unit is configured to harvest power from near field communication radio wave fields and supply power to a memory, processor, and communication circuit of the contactless card. In some embodiments, the contactless card…
Methods, systems, and devices for wireless communications are described that support signaling for energy harvesting at a first device. In some examples, the first device may transmit, to a second device, an indication of one or more an energy conversion efficiency factors, power threshold…
A wireless power transmission system includes a voltage regulator, an inverter, a capacitor circuit, an antenna, and a controller. The inverter receives a first alternating current (AC) signal that has a configurable frequency and produces a configurable supply voltage. The inverter produces a…
Provided is a system comprising a base station and a terminal apparatus that communicate with each other by selectively using plural radio resources, which is capable of supplying a power to the terminal apparatus using a communication-unused radio resource between the base station and the terminal…
Provided is a wireless-power transfer apparatus capable of efficiently supplying a predetermined power for each of plural terminal apparatuses. A wireless-power transfer apparatus comprises a radio processing section for transmitting a signal for wireless power transfer to each of the plural…
A system for wireless power reception, preferably including one or more: antennas, dynamic impedance matches, RF-DC converters, DC impedance converters, and/or DC power outputs. A method for wireless power reception, preferably including: receiving power wirelessly at an antenna, dynamically…
A device power supply system is applied to a building including a recessed space that is formed to be recessed with respect to a wall surface of a living space and is opened toward the living space and is for supplying electric power to a device, and the device power supply system includes: a…
A rectifier circuit having first and second match circuits, a bias circuit, first and second switches is provided. The first match circuit has first and second terminals and receives a first input signal. The second match circuit receives a second input signal. The bias circuit provides a first…
Systems, methods, and apparatuses for receiving wireless power using a wireless power receiver client architecture are disclosed. A simplified wireless power receiver apparatus includes an energy storage device and a radio frequency (RF) transceiver including an antenna. Energy harvester circuitry…
To provide an antenna device capable of transmitting power stably. An antenna device includes an adjuster to adjust phases of transmission power signals that are respectively supplied by multiple antenna elements, with respect to a first axis direction, an image acquiring unit to acquire an image…
Certain aspects of the present disclosure provide techniques for load resistance signaling for wireless power transfer. A method for wireless communication by a first wireless communication device includes receiving, from a second wireless communication device, a first plurality radio frequency…
In some embodiments, an apparatus includes an antenna, an energy storage device, a receiver, and an indicator assembly. The receiver may be coupled to the antenna and the energy storage device. The receiver may be configured to receive wireless energy via the antenna such that an energy storage…
Systems, methods and computer-readable media according to the present technology enable a receiver to detect and characterize background signals and/or interfering noise to establish a blocker/interferer signal signature, or background signature, for a multi-signal wireless signaling environment…
Methods, systems, and devices for wireless communications are described. An energy harvesting device, such as a user equipment (UE) or a radio frequency identification (RFID) tag, may receive, from an energy transfer device such as a network node, an energy harvesting signal providing power for the…
The apparatus may be a reader device configured to transmit a first signal at a first frequency for a backscattering from an energy harvesting (EH) device over a plurality of frequencies, to receive, from an EH device, a backscatter signal over a plurality of frequencies based on a transmitted…