PHYSICAL LAYER NON-LINE-OF-SIGHT PATH DISCRIMINATION BASED ON POLARIZATION

    公开(公告)号:WO2020150173A1

    公开(公告)日:2020-07-23

    申请号:PCT/US2020/013412

    申请日:2020-01-13

    Abstract: Disclosed are techniques for determining a line-of-sight (LOS) path between a transmitter and a wireless device in a wireless communications network. In an aspect, a wireless device receives, from the transmitter, a first reference signal transmitted on a first antenna port and a second reference signal transmitted on a second antenna port, the first reference signal having a first polarization and the second reference signal having a second polarization with known difference (e.g., perpendicular) to the first polarization, compares multi-path channels estimated from reception of the first reference signal and the second reference signal to multi-path channels expected from the first reference signal and the second reference signal when transmitted along the LOS path between the transmitter and the wireless device, and determines which path (if any) of the multi-path channels corresponds to the LOS path between the transmitter and the wireless device.

    WIRELESS POWER TRANSFER RECEIVER HAVING CLOSED LOOP VOLTAGE CONTROL
    5.
    发明申请
    WIRELESS POWER TRANSFER RECEIVER HAVING CLOSED LOOP VOLTAGE CONTROL 审中-公开
    具有闭环电压控制的无线电力传输接收器

    公开(公告)号:WO2017053082A1

    公开(公告)日:2017-03-30

    申请号:PCT/US2016/050861

    申请日:2016-09-09

    Abstract: An apparatus for wirelessly receiving power via a wireless field generated by a transmitter includes a resonator configured to generate electrical current to power or charge a load based on a voltage induced in the resonator in response to the wireless field, at least one variable capacitor electrically coupled to the resonator and configured to adjust a first capacitance of the at least one variable capacitor responsive to a first control signal, and a control circuit configured to adjust and apply the first control signal to the at least one variable capacitor to simultaneously adjust a resonant frequency of the resonator and a current output to the load based on an electrical characteristic indicative of a level of power output to the load.

    Abstract translation: 一种用于经由发射机产生的无线电场来无线接收电力的装置包括:谐振器,被配置为响应于无线电场,基于谐振器中感应的电压产生电流以对负载供电或充电;至少一个可变电容器电耦合 并且被配置成响应于第一控制信号调整所述至少一个可变电容器的第一电容;以及控制电路,被配置为将所述第一控制信号调整并施加到所述至少一个可变电容器以同时调节谐振频率 并且基于表示向负载输出的功率电平的电特性向电流输出电流。

    SELECTIVE POWER TRANSMITTING ELEMENT USE FOR WIRELESS POWER TRANSFER
    6.
    发明申请
    SELECTIVE POWER TRANSMITTING ELEMENT USE FOR WIRELESS POWER TRANSFER 审中-公开
    选择性功率发射元件用于无线电力传输

    公开(公告)号:WO2017222760A1

    公开(公告)日:2017-12-28

    申请号:PCT/US2017/035129

    申请日:2017-05-31

    Abstract: A wireless power transmitter system includes: a power delivery structure comprising power transmitting elements (power transmitting elements), each of which is configured to induce a field, and configured to adapt to an exterior shape of an entity that contains a receiver; a power circuit configured to provide power to the power transmitting elements selectively; and a controller configured to: determine an electrical characteristic, other than power transfer to the receiver, associated with actuating at least one of the power transmitting elements; determine at least one power transmitting element subset, based on the electrical characteristic, containing less than all, and at least one, of the power transmitting elements; select, based on power transferred to the receiver, one or more charging power transmitting elements to use to charge the receiver wirelessly; and cause the power circuit to provide power to the one or more charging power transmitting elements.

    Abstract translation: 无线功率发射器系统包括:功率输送结构,其包括功率发射元件(功率发射元件),每个功率发射元件被配置为诱发场,并且被配置为适应实体的外部形状 包含一个接收器; 电力电路,其被配置为选择性地向所述电力发送元件提供电力; 以及控制器,所述控制器被配置为:确定与激励所述功率发射元件中的至少一个功率发射元件相关联的除了到所述接收器的功率传输之外的电特性 基于所述电特性确定至少一个功率发射元件子集,所述至少一个功率发射元件子集包含少于所有功率发射元件和至少一个功率发射元件; 基于传送到接收器的功率,选择一个或多个充电功率传输元件用于无线充电接收器; 并使电源电路向一个或多个充电功率传输元件供电。

    CLASS E2 AMPLIFIER
    7.
    发明申请
    CLASS E2 AMPLIFIER 审中-公开
    等级E2放大器

    公开(公告)号:WO2017105732A1

    公开(公告)日:2017-06-22

    申请号:PCT/US2016/062131

    申请日:2016-11-16

    Abstract: An amplifier (400) includes an amplifier circuit (410) comprising a switch (416), the switch (416) configured to provide an output signal responsive to an input signal (415), the output signal comprising a first output signal at a fundamental frequency and a second signal at a second harmonic of the fundamental frequency, the input signal (415) configured to control the switch (416) according to a nominal 25% off, 75% on cycle, a filter circuit configured to control an impedance presented to the amplifier circuit (410) and a load circuit (440), at least a part of which is configured to combine with the filter circuit to form an impedance transformation circuit (430) configured to be resonant at the second harmonic of the fundamental frequency.

    Abstract translation: 放大器(400)包括包含开关(416)的放大器电路(410),所述开关(416)配置为响应于输入信号(415)提供输出信号,所述输出信号 包括基频的第一输出信号和基频的第二谐波的第二信号,所述输入信号(415)被配置为根据标称的25%off,75%on周期,a 滤波器电路,被配置为控制呈现给所述放大器电路(410)和负载电路(440)的阻抗,所述滤波器电路的至少一部分被配置为与所述滤波器电路组合以形成阻抗变换电路(430),所述阻抗变换电路 在基频的二次谐波处。

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