Other

Aira, Inc.

John Judson MacDonald

Lixin Shi

Jules Marie Xavier Laffitte

Xiaoping Zhu

William Paul Abajian

Jake Lee Vander Ploeg

Viswajit Natarajan

Ronald F Richard

Anthony Joseph Fiorenza

Mark Huan Mekkittikul

Christopher William Sarli

Tena MacDonald

A wireless charging system is configured to charge one or more receiver devices simultaneously. The wireless charging system includes multiple coils that may be driven independently based on a feedback system with one or more feedback channels. Each coil is driven by a coil driving signal selected based on a set of target characteristics. A coil drive circuit receives an input of a pulse width modulation (PWM) signal and outputs the coil driving signal to a corresponding coil.

Coil driving in wireless charging system

A wireless charging system is configured to charge one or more receiver devices simultaneously. The wireless charging system includes multiple coils that may be driven independently based on a feedback system with one or more feedback channels. One of the feedback channels may be demodulated communication signals from the one or more receiver devices. The demodulation may be performed by a communication demodulation circuit with configurable gain. The demodulated communication signals are processed for error correction at a bit level and a packet level, which improves accuracy despite presence of multiple receiver devices and noisy conditions.

Communication demodulation in wireless charging system

A wireless charging system is configured to charge one or more receiver devices simultaneously. The wireless charging system includes multiple coils that may be driven independently based on a feedback system with one or more feedback channels. One of the feedback channels may be a voltage and/or current measurement of coil driving signals from the coils that are indicative of receiver device presences on the wireless charging system. A coil driving signal may be sampled and processed using discrete Fourier transform to determine amplitude and phase information of the signal.

High precision signal measurement in wireless charging system

A wireless charging system is configured to charge one or more receiver devices simultaneously. The wireless charging system includes a plurality of coils for wireless charging the one or more receiver devices. The wireless charging system may use a machine learning algorithm to detect the one or more receiver devices and select which of the multiple coils to activate for charging the multiple coils. Based on measurements made from signal through the coils within the wireless charging system, the machine learning algorithm determines a subset of the coils to activate for charging the detected one or more receiver devices.

Coil selection in multi-coil wireless charging system

A device and system for transporting items up and down a folding attic stairway in a building, such as a residential structure, and into an attic space finally resting securely on the floor of the attic.

Folding attic stairway transport system

A method of supporting respiratory airways during ventilator-assisted respiration. The method includes applying two supplemental pressure supports. The first such supplemental pressure support includes applying pressure of a first magnitude upon initiation of and for the duration of an inspiratory phase. The second supplemental pressure support includes applying pressure of a second magnitude greater than the first magnitude of the first supplemental pressure support upon initiation of and for the duration of the expiratory phase. In this manner, full time pressure augmentation is applied to respiratory airways to thereby structurally support the airways and thus maintain in an open configuration the pathways in communication with lungs.

Method for providing respiratory airway support pressure

A respiratory ventilator and methodology thereof for automatically calibrating respiration gas flow delivery. The ventilator includes a gas flow calibration member having a reader component for recording inspiratory and exhalation gas volume with exhalation time, and for measuring a plurality of incremental exhalation gas flow values in a plurality of incremental time periods during a single exhalation. The gas flow calibration member includes a composite calculator component for determining an average of consecutive composite flow values, and a scanner calculator component for scanning in reverse order the plurality of consecutive composite flow values and calculating a new flow calibration value where a preselected number of consecutive composite flow values fall within a pre-selected flow rate. Thereafter, the gas delivery member is calibrated in accord with the determined new flow calibration value.

Growing community of inventors

Palm Desert, CA, United States of America

John Judson MacDonald