NuCurrent, Inc.

An antenna for a wireless power transmission system includes a coil layer and a filter layer. The coil layer includes turns, a first coil end, and a second coil end. The coil layer is electrically connected to a power conditioning system via a positive electrical node connected to the first coil end and a negative electrical node connected to the second coil end. The filter layer is positioned in a stack-up with the coil layer and includes tines each comprising a conductive material, positioned proximate to the plurality of turns, and terminating at one end. The filter layer includes a filter end that is electrically connected to a ground of the wireless transmission system, wherein the filter layer is configured to absorb an E-field emitted by the coil layer and route the absorbed E-field to the ground.

Various embodiments of a wireless connector system are described. The system has a transmitter module and a receiver module that are configured to wirelessly transmit electrical energy and/or data via near field magnetic coupling. The wireless connector system is designed to increase the amount of wirelessly transmitted electrical power over a greater separation distance. The system is configured with various sensing circuits that alert the system to the presence of the receiver module to begin transfer of electrical power as well as undesirable objects and increased temperature that could interfere with the operation of the system. The wireless connector system is a relatively small footprint that is designed to be surface mounted.

A transmitter-side host device includes a transmitter-side antenna and a transmitter-side control system. The transmitter-side control system is configured to receive an indication of either a first wireless transfer mode desired by a receiver-side host device or an indication of a second wireless transfer mode desired by the receiver-side host device. During the first wireless transfer mode, a first magnitude of wireless power per unit of time is delivered to the receiver-side host device and a first volume of wireless data per unit of time is exchanged with the receiver-side host device. During the second wireless transfer mode, a second magnitude of wireless power per unit of time is delivered to the receiver-side host device and a second volume of wireless data per unit of time is exchanged with the receiver-side host device.

A wireless power transfer system, for charging a wearable communication device, includes a headset, which includes a headband, at least one earcup, and a receiver antenna configured to receive a power signal, wherein the receiver antenna is positioned proximate to or within the headset. The system further includes a charging base, which includes a transmission antenna, configured to transmit the power signal to the receiver antenna, and a housing. The housing includes a support arm and a base, wherein the transmission antenna is positioned proximate to or within one or more of the support arm, the base, and combinations thereof, and wherein the support arm is configured to retain the headband and position the receiving antenna to receive the power signal from the transmitting antenna.

A charging apparatus for a wearable device includes a transmitter-side antenna and a transmitter-side control system. The transmitter-side control system is configured to (i) during a first period of time that is prior to the wearable device entering an increased-temperature state, drive the transmitter-side antenna to emit an alternating electromagnetic field for delivering wireless power to the wearable device and (ii) during a second period of time when the wearable device is in the increased-temperature state, toggle between power-on and power-off sub-periods for driving the transmitter-side antenna. During each power-on sub-period, the transmitter-side antenna is driven to emit the alternating electromagnetic field for delivering wireless power to the wearable device. During each power-off sub-period, the transmitter-side antenna is not driven to emit the alternating electromagnetic field for delivering wireless power to the wearable device.

A wireless power transfer system is provided having a wireless transmission system with an input to receive input power from an input power source, a transmission antenna configured to couple with a receiver antenna associated with a wireless receiver system in a peripheral device, and a transmission controller configured to generate AC wireless signals including wireless power signals and wireless data signals. The transmission controller is further configured to derive a coupling factor based on coupling data sent from the wireless receiver system to the wireless transmission system, generate an update frequency based on the derived coupling factor, and transmit the update frequency to the wireless receiver system in the peripheral device, whereby the peripheral device provides coupling data to the wireless transmission system based on the update frequency.

A wireless power transmitter is configured to (i) detect a presence of an object and (ii) after detecting presence of the object, carrying out a first beaconing process for detecting a wireless power receiver. Based on the first beaconing process, the wireless power transmitter is configured to (iii) detect a given wireless power receiver, (iv) determine a coupling level between the wireless power transmitter and the given wireless power receiver, and (v) thereafter configure the voltage level of the DC voltage signal that is provided as input to the inverter and thereby configuring a power level of the wireless power output produced by the transmission antenna in accordance with the determined coupling level.

Eyewear and receptacles for housing such eyewear include components of a wireless power transfer system. The eyewear includes a receiver system for receiving power from a transmission system associated with the receptacle(s). The receiver system includes at least one receiver antenna, for receiving wireless power from the transmission system, and a repeater antenna for repeating the wireless power signal to the receiver antenna. The receiver antenna is positioned proximate to a first arm of the eyewear and the repeater is positioned proximate to a second arm of the eyewear. Positioning of the receiver and repeater antennas allows for positional freedom of the eyewear and/or the arms of the eyewear, when mechanically received by the receptacle.

A wireless receiver system, configured to receive both electrical data signals and electrical energy, includes a first receiver antenna, configured to receive one or both of the electrical data signals and the electrical energy, and a power conditioning system in electrical connection with the first receiver antenna, configured to receive electrical energy from the first receiver antenna. The wireless receiver system further includes a second receiver antenna configured to receive the electrical data signals and a receiver controller operatively associated with the first receiver antenna and the second receiver antenna and configured to determine switching instructions. The wireless receiver system further includes a switch operatively associated with the receiver controller and configured to switch receiving operations between the first and second receiver antennas based, at least in part, on the switching instructions.

A system for wireless communications includes an antenna and a controller, the antenna configured to transmit electrical data signals, the electrical data signals including an encoded message signal. The encoded message signal including one or more encoded message words. The controller is configured to encode one or more message words, of a message signal, into one or more encoded message words of the encoded message signal, based on a coding format. The coding format correlates each of a plurality of correlated ratios with one of a plurality of format words. Each of the plurality of correlated ratios is a ratio of a duty cycle of a pulse to a respective period associated with one or both of the duty cycle and the pulse. Each of the one or more encoded message words are encoded as one of the plurality of correlated ratios.