Qualcomm Incorporated

Witricity Corporation

Witricity Corpoation

William Henry Von Novak, Iii

Linda Stacey Irish

Cody Wheeland

Stanley Slavko Toncich

Seong Heon Jeong

Francesco Carobolante

Joseph Maalouf

Sumukh Shevde

Mei-Li Chi

Edward Kallal

Mark David White, Ii

Virginia Walker Keating

Arvind Govindaraj

Charles E Wheatley, Iii

Somdeb Majumdar

Ryan Tseng

Muhammed Ibrahim Sezan

Gabriel Isaac Mayo

Mark Stirling Caskey

Ian J Fevrier

Stanton C Braden

Michael Antar

Ali Abdullah Shareef

Mike Yung-Ho Tsai

Kelsey Burrell

Stephen Jay Shellhammer

Paul Eric Jacobs

Lukas Frank Sieber

Joseph Patrick Burke

Paolo Menegoli

Hanspeter Widmer

Ernest Tadashi Ozaki

Roy Franklin Quick, Jr

Nigel P Cook

Chang-Yu Huang

Jonathan Beaver

Zhen Ning Low

Mainak Biswas

Donald Hutson

Charles Edward Wheatley

Roy Howard Davis

Michael John Mangan

Rinat Burdo

Miles Alexander Lyell Kirby

Kevin Douglas Lee

Pavel Monat

Anne Katrin Konertz

Sreenivas Kasturi

Cheng Tan

Joseph L Archambault

Sergio P Estrada

Curtis Gong

Vincent Kemler

Osvaldo Alcala

Sean Charles Andrews

Milorad Radovic

Adam Jason Wood

Weston Daniel Braun

Edward Kenneth Kallal

Ryan Mills

Fang Han

Xi Gong

Martin Thienel

Megan Hansen

Layne Thomas

Courtney Cooley

Mark Caskey

Disclosed is a method and apparatus for mitigating temperature spikes and dissipating heat. The apparatus for mitigating temperature spikes and dissipating heat comprises one or more heatsinks, one or more sensors, one or more phase change materials and one or more processors coupled to the one or more sensors. The one or more processors may be configured to obtain one or more sensor measurements and may be configured to determine whether to store heat or dissipate heat based on the one or more sensor measurements. In response to a determination to dissipate heat, the one or more processors may be configured to dissipate heat from the one or more processors, the one or more phase change materials or both using the one or more heatsinks. Furthermore, in response to a determination to store heat, store heat from the one or more processors using the one or more phase change materials.

Techniques for mitigating temperature spikes and dissipating heat

The present disclosure describes aspects of wireless power transfer for stationary applications. In some aspects, a system includes a transmitter and receiver separated by a wireless gap with a membrane. The transmitter has an inverter circuit to invert direct current (DC) power from a DC power source to alternating current (AC) power. The transmitter also has a transmitting circuit that includes a first resonant coil configured to resonate at a frequency of the AC power. The first resonant coil is also configured to wirelessly transmit the AC power across the wireless gap. The receiver has a receiving circuit that includes a second resonant coil configured to resonate based on resonance of the first resonant coil and to receive the wirelessly transmitted AC power. Additionally, the first and second resonant coils are configured as primary and secondary windings, respectively, of a transformer to transform the wirelessly transmitted AC power.

Wireless power transfer for stationary applications

Techniques for providing wired and wireless charging to a device are provided. An example of an apparatus for receiving power from a wired power supply and a wireless power supply according to the disclosure includes a wireless power receiver configured to receive power from the wireless power supply, a direct current input circuit configured to receive power from the wired power supply, a control circuit operably coupled to the wireless power receiver and the direct current input circuit and configured to determine a power transfer capability for each of the wired power supply and the wireless power supply, and select the wireless power receiver from the wireless power supply or with the direct current input circuit from the wired power supply to receive power based on the power transfer capabilities.

Smart priority detection for wired and wireless charging

Embodiments include devices and methods for maintaining control of a robotic vehicle when control signals from a main controller are lost. A detector circuit may monitor signals from the main controller to an electronic speed controller (ESC) to detect a loss of valid control signals. The detector circuit may cause an auxiliary controller to begin issuing motor control signals to the ESC in response to detecting a loss of valid control signals. The auxiliary controller may be configured to issue motor control signals to the ESC according to a pre-loaded set of motor control instructions. The pre-loaded set of motor control instructions may be received from the main controller and/or may be configured to cause the auxiliary controller to issue motor control signals to the ESC that control motors in a manner that causes the robotic vehicle to enter a safe mode of operation or execute a particular maneuver.

Managing limited safe mode operations of a robotic vehicle

Systems and methods are described for a passive flux bridge for charging electric vehicles. These systems and methods include a mobile apparatus including mobility components and a material with high magnetic permeability and electrical resistivity. In aspects, the mobility components, e.g., wheels or continuous track, are configured to enable movement of the apparatus and positioning of the apparatus proximate to a vehicle power-transfer apparatus of an electric vehicle. The magnetically permeable and electrically resistive material, e.g., ferrite, is configured to passively channel magnetic flux between a base power-transfer system and the vehicle power-transfer system to wirelessly charge a battery of the electric vehicle.

Passive flux bridge for charging electric vehicles

An apparatus is disclosed for wireless power transmission. The apparatus may include a resonator circuit configured to generate a magnetic field to couple to a power receiving unit. The resonator circuit may include a transmit coil and an electromechanical reactive device having one or more moveable components, and having a reactance that is determined by a physical arrangement of those components. A power circuit connected to the resonator circuit can provide power to drive the transmit coil to generate the magnetic field. The electromechanical reactive device of the resonator circuit can be actuated to change the physical arrangement of the one or more moveable components, and hence change the reactance.

Dynamic adjustment of power for wireless power transmission

Techniques described herein address these and other issues by providing an architecture of antennas capable of generating a relatively even H-field without exceeding exposure limits, while solving communication issues at the same time. More specifically techniques described herein are directed toward the use of multiple antennas that enable an interrogator device of a biological measurement and stimulation system to power different groups of medical implants at different times by creating fields in different regions of the brain. By doing this, the interrogator device can independently power and/or communicate with groups of medical implants in these different regions and create more evenly-distributed fields while doing so.

Power and communication of neurocell clusters

Exemplary embodiments of the present disclosure are related to a wireless power resonator and method that includes a wireless power transmit element. The wireless power transmit element may include a substantially planar transmit antenna configured to generate a magnetic field and formed from a conductive trace including a plurality of distributed inductive elements along the conductive trace. The transmit element may further include a filter formed from selected ones of the plurality of distributed inductive elements of the planar transmit antenna and configured to generate at least one frequency response.

Wireless power transmit resonator

Certain aspects of the present disclosure are generally directed to apparatus and techniques for protecting electronic devices that may be prone to damage by wireless charging fields. For example, the apparatus may include a wireless charging circuit configured to selectively generate a wireless charging field and an impedance detection circuit coupled to the wireless charging circuit and configured to detect an impedance change corresponding to the wireless charging field. In this case, a proximity detection circuit may selectively detect proximity of one or more electronic devices that are prone to damage by the wireless charging circuit. In some aspects, detecting the proximity of the one or more electronic devices is activated based on detecting the impedance change, and wherein generating the wireless charging field comprises reducing a transmit power of the wireless charging field based on detecting the impedance change.

Near field communication (NFC) coexistence

Techniques for charger-device pairing for recharge warnings are described. In one or more implementations, a battery of a device is determined to require charging based on a state of charge of the battery. In response to this determination, a message is communicated via a local network from the device to a charger that was previously paired with the device. The message includes a request for the charger to generate a first alert indicating that the charger is available to charge the battery of the device. In addition, the device provides a second alert indicating that the battery of the device requires charging.

Charger-device pairing for recharge warnings

Methods, computer-readable media, and apparatuses for estimating a distance of an object from a Light Detection and Ranging (LIDAR) system is disclosed. In one embodiment, the method includes transmitting a first light signal towards the object using a LIDAR system, and detecting a second light signal by a light sensor to generate a detected signal. The second light signal includes a reflection of the first light signal from the object. The method further includes generating a filtered signal by applying a time-dependent adjustable filter to the detected signal, and estimating the distance of the object from the LIDAR system based at least on the filtered signal.

Time-dependent filtering for lidar signals

An apparatus for receiving wireless power is provided. The apparatus a communication circuit configured to transmit a first indication of a first wireless charging category associated with the apparatus. The communication circuit is further configured to receive an indication of a wireless charging class of a power transmit unit (PTU). The communication circuit is further configured to transmit a second indication of a second wireless charging category associated with the apparatus based on the wireless charging class of the PTU being compatible with a higher wireless charging category than the first wireless charging category. The apparatus further comprises a coupler configured to receive a level of wireless power corresponding to the second wireless charging category. The higher wireless charging category indicates an ability to receive a greater amount of wireless power than the first wireless charging category.

Method and apparatus for varying a wireless charging category of a wireless power receiver in wireless charging applications

An apparatus for wirelessly transferring charging power is provided. The apparatus comprises a coupler configured to generate a wireless field when driven with a time-varying current. The apparatus comprises a measurement circuit configured to determine a parasitic capacitance between the coupler and ground while the coupler generates the wireless field. The apparatus comprises a controller circuit configured to determine a presence of a foreign object in response to the determined parasitic capacitance satisfying a detection criteria. The detection criteria may comprises a time-varying pattern of the determined parasitic capacitance predetermined to correspond to presence of a presence of the foreign object. The detection criteria may also comprises a threshold change in the determined parasitic capacitance predetermined to correspond to presence of a presence of the foreign object.

Methods and apparatus for implementing presence and usage pattern detection in wireless charging applications

Certain aspects of the present disclosure are generally directed to apparatus and techniques for wireless charging. One example apparatus generally includes a plurality of inductive elements and signal generation circuitry coupled to the plurality of inductive elements and configured to generate a plurality of signals, where at least two signals of the plurality of signals have different magnitudes. In certain aspects, the signal generation circuitry is configured to drive the plurality of inductive elements using the plurality of signals, where at least one first inductive element of the plurality of inductive elements is driven using at least one first signal of the plurality of signals having a first phase and at least one second inductive element of the plurality of inductive elements is driven using at least one second signal of the plurality of signals having a second phase different from the first phase.

Phase and magnitude control for wireless power transmitters

Techniques for detecting the presence of a magnetic field associated with a wireless electric vehicle charging (WEVC) system are disclosed. An example of an apparatus for alerting a user of the presence of a magnetic field according to the disclosure includes a mobile device and at least one magnetic flux sensor integrated as part of the mobile device or operably coupled to the mobile device, the at least one magnetic flux sensor configured to detect the presence of the magnetic field associated with a wireless electric vehicle charging system, the mobile device configured to generate an alert based on the presence of the magnetic field detected by the at least one magnetic flux sensor.

Methods for warning of electromagnetic fields produced by wireless electric vehicle charging systems

Growing community of inventors

San Diego, CA, United States of America

William Henry Von Novak, Iii