Wireless power transfer to biomedical implants

    公开(公告)号:US11682927B2

    公开(公告)日:2023-06-20

    申请号:US17875552

    申请日:2022-07-28

    摘要: Various examples are provided for wireless power transfer to implants. In one example, a system includes a radio frequency (RF) power source and a transmitter (TX) array comprising an excitation coil and resonant coils distributed about the excitation coil. The TX array can transfer power from the RF power source to a biomedical implant inserted below a skin surface of a subject when the TX array is positioned on the skin surface adjacent to the biomedical implant. A receiver (RX) coil of the biomedical implant can inductively couple with the TX array for the power transfer. The resonant coils can allow power transfer when the RX coil is not aligned with the excitation coil.

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    发明公开
    "M-tech" 审中-公开

    公开(公告)号:US20230185115A1

    公开(公告)日:2023-06-15

    申请号:US17548553

    申请日:2021-12-12

    摘要: This device is armored with nanotechnology that allows it to project hologram imagery, touchscreen, and more. This device also comes with 1,000 feet or more of wireless charging distance. A diffuser component that controls the amount of light that passes through a glass, fabric, or material that emits light inside of an object or thing via a door, window, or other points of entry. The device uses digital, analog, laser, and mechanical technologies to control the amount of light that enters inside an object or thing. The features and technological applications will protect the user against skin cancer caused by ultraviolet light, work against the Sun's glare which temporally blinds operators due to extreme sunlight, provide safety and privacy as drivers can change all vehicle's tinted windows from 1% tint to 100% clear glass with a single touch.

    Optimization method for UAV-based wireless information and energy transmission

    公开(公告)号:US11641591B2

    公开(公告)日:2023-05-02

    申请号:US17259936

    申请日:2018-10-16

    摘要: An optimization method for UAV-based wireless information and energy transmission includes following steps: S1: reporting, by a wireless device, an energy state of the wireless device to a UAV; S2: detecting, by the UAV, a channel state between the UAV and the wireless device; and S3: selecting, by the UAV, an optimal action based on estimated revenue maximization according to an electric quantity of the UAV, an electric quantity of the wireless device, and the channel state. The use of the wireless device can reduce wiring costs, beautify the space, and ensure a smaller size and a lower power. By applying the UAV to information and energy transmission for the wireless devices, the data transmission rate and the energy conversion efficiency of networks are improved.

    WIRELESS POWER SUPPLY FOR ELECTRICAL DEVICES

    公开(公告)号:US20230130916A1

    公开(公告)日:2023-04-27

    申请号:US17981506

    申请日:2022-11-07

    发明人: Sean R. Pearson

    摘要: A wireless power supply system may comprise a wireless power transmitting circuit configured to transmit radio-frequency (RF) signals, and a wireless power receiving circuit configured to convert power from the RF signals into a direct-current (DC) output voltage stored in an energy storage element. The wireless power transmitting circuit may be electrically or magnetically coupled to an antenna and/or electrical wiring of a building for transmitting the RF signals. The wireless power transmitting circuit may be housed in an enclosure that is affixed in a relative location with respect to the wireless power receiving circuit. The antenna may comprise two antenna wires that extend from the enclosure. The wireless power receiving circuit may be electrically or magnetically coupled to an antenna for receiving the RF signals. The wireless power receiving circuit may comprise an RF-to-DC converter circuit for converting the power from the RF signals into a DC output voltage.

    Dual RF-DC Batteryless Wireless Sensor Device

    公开(公告)号:US20230119756A1

    公开(公告)日:2023-04-20

    申请号:US18071844

    申请日:2022-11-30

    申请人: SIGMASENSE, LLC.

    发明人: Phuong Huynh

    摘要: A batteryless wireless sensor system includes a data acquisition system, a radio frequency (RF) transceiver, and a batteryless wireless sensor device. The RF transceiver is in communication with the data acquisition system, transmits a RF signal, and receives sensor data and provide the sensor data to the data acquisition system. The batteryless wireless sensor device includes a RF transmitter, an analog to digital converter (ADC), and a sensor. The batteryless wireless sensor harvests energy from the RF signal and generates a DC signal based on the energy harvested from the RF signal, powers up and operates the ADC and the sensor based on the DC signal, and generates sensor data. The batteryless wireless sensor then transmits the sensor data via the RF transmitter to the RF transceiver. In certain examples, the ADC is implemented as a current mode ADC.