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公开(公告)号：US20200313466A1
公开(公告)日：2020-10-01
申请号：US16846973
申请日：2020-04-13
申请人： Searete LLC
发明人： Daniel Arnitz , Jeffrey A. Bowers , Joseph A. Hagerty , Russell J. Hannigan , Guy S. Lipworth , David R. Nash , Matthew S. Reynolds , Clarence T. Tegreene , Yaroslav A. Urzhumov
IPC分类号： H02J50/70 , H02J50/23 , H04W52/28 , H02J50/27 , H02J50/90 , H02J50/80 , H01Q3/24 , B64C39/02 , H01Q1/24 , H01Q1/28 , H01Q15/00 , H01Q5/335
摘要： System and methods are described herein for providing wireless power to a target device, such as a laptop computer, a mobile phone, a vehicle, robot, or an unmanned aerial vehicle or system (UAV) or (UAS). A tunable multi-element transmitter may transmit electromagnetic radiation (EMR) to the target device using any of a wide variety of frequency bands. A location determination subsystem and/or range determination subsystem may determine a relative location, orientation, and/or rotation of the target device. For a target device within a distance range for which a smallest achievable waist of the Gaussian beam of the EMR at an operational frequency is smaller than the multi-element EMR receiver of the target device, a non-Gaussian beamform may be determined to increase efficiency, decrease overheating, reduce spillover, increase total power output of rectenna receivers on the target device, or achieve another target power delivery goal.
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公开(公告)号：US10782333B2
公开(公告)日：2020-09-22
申请号：US16615181
申请日：2018-04-10
发明人： Yukihiro Homma , Maho Sato , Manabu Sawa
摘要： A radio wave measurement system includes: an aerial moving body to move or to hover above a measurement target antenna for radiating a radio wave in a sky direction; and a position measurer to measure a time added position of the aerial moving body. The aerial moving body includes a measurement antenna to receive the radio wave and a radio wave measurer to measure time-added received radio wave data. The aerial moving body further includes a beam shape data generator to generate radiated radio wave data including the received radio wave data and the radio wave source relative position data representing measurement point data that is a position of the aerial moving body at a point of time when the received radio wave data is measured as a relative position with respect to the measurement target antenna.
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公开(公告)号：US10777886B2
公开(公告)日：2020-09-15
申请号：US16290403
申请日：2019-03-01
发明人： Kentaro Murata , Kohei Onizuka , Toshiya Mitomo
摘要： A wireless power transmission device includes a power transmitter to transmit a wireless power signal through a plurality of first antennas, a propagation path estimation unit to estimate first propagation path information characterizing a propagation path between the plurality of first antennas and a predetermined antenna, a propagation path extraction unit to extract second propagation path information characterizing a propagation path passing through a moving body, based on at least one of a difference on a time axis of a plurality of pieces of the first propagation path information each acquired at different times, and filtering on a frequency axis, a weight calculator to calculate a weight vector that determines a directivity of a combined power transmission beam formed by the plurality of first antennas, and a controller to control an amplitude and a phase of the wireless power signal inputted to each of the plurality of first antennas.
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公开(公告)号：US10770925B2
公开(公告)日：2020-09-08
申请号：US16299479
申请日：2019-03-12
发明人： Tomoya Tandai , Kentaro Taniguchi , Toshiya Mitomo
摘要： According to one embodiment, an electronic apparatus includes a power transmitter, detect circuitry and control circuitry. The power transmitter is configured to transmit a power by an electromagnetic wave of a power transmission frequency band according to a power transmission period. The detect circuitry is configured to detect a power in a frequency band different from the power transmission frequency band. The control circuitry is configured to determine the power transmission period based on a first threshold value, a second threshold value, a third threshold value and a fourth threshold value.
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公开(公告)号：US10734717B2
公开(公告)日：2020-08-04
申请号：US14882185
申请日：2015-10-13
申请人： ENERGOUS CORPORATION
发明人： Alister Hosseini
摘要： An antenna include a resonator element configured to radiate a wireless signal and a substrate embedding the resonator. The resonator element may be a 3D resonator element. The 3D resonator element may be a helical resonator element.
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公开(公告)号：US20200244102A1
公开(公告)日：2020-07-30
申请号：US16726753
申请日：2019-12-24
申请人： Energous Corporation
摘要： A wireless-power receiver is disclosed including a first antenna configured to transmit first near-field radio frequency (RF) energy, a second antenna configured to receive second near-field RF energy, and a communications component configured to provide a communication signal including data indicating a location of the first wireless-power receiver. The wireless-power receiver is configured to, in accordance with a determination that the wireless-power receiver is in direct contact with a surface of another wireless-power receiver, transmit the first near-field RF energy, via the first antenna, to the other receiver. The wireless-power receiver is further configured to, in accordance with a determination, based on the data indicating the location of the wireless-power receiver, that the wireless-power receiver is within a non-zero threshold distance from the other receiver or a wireless-power transmitter, receive the second near-field RF energy, via the second antenna, from the other receiver or from the wireless-power transmitter.
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公开(公告)号：US20200220388A1
公开(公告)日：2020-07-09
申请号：US16437484
申请日：2019-06-11
发明人： Rui Liu , Jiangjian Huang
摘要： A wireless power receiver according to some embodiments includes an integrated circuit which includes: a full-bridge rectifier coupled to receive wireless power from a receiver coil; a wireless receiver controller coupled to control the full-bridge rectifier; a pass device coupled between the full-bridge rectifier and an output; and a configurable controller coupled to the switch, the configurable controller configurable as a LDO controller or a Buck controller. A second controller can be coupled to the configurable controller that interfaces to an external Buck low-side transistor if the configurable controller is the Buck controller and provides GPIO if the configurable controller is the LDO controller. A third controller can be coupled to the full-bridge rectifier, which operates as a full-bridge sync rectifier driver multiplexer to select an external driver for one or more of the rectifier transistors. Other features are also provided.
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公开(公告)号：US20200212719A1
公开(公告)日：2020-07-02
申请号：US16371887
申请日：2019-04-01
发明人： Jiangjian HUANG , Feng ZHOU , Zhitong GUO , Rui LIU
摘要： Embodiments described herein a method for controlling operating frequency for a wireless power charging system. Specifically, a transmitter coil at a wireless power transmitter is driven under an operating frequency and an input voltage. deadtime information at the wireless power receiver is received, from a wireless power receiver having a receiver coil that receives wireless power from the transmitter coil. A microcontroller then determines, based on the received deadtime information or the operating frequency, whether the operating frequency deviates from a target operating frequency range. Based on the determination, one or both of the operating frequency or the input voltage are adjusted thereby causing the operating frequency to fall within the target operating frequency range.
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公开(公告)号：US20200174052A1
公开(公告)日：2020-06-04
申请号：US16615181
申请日：2018-04-10
发明人： Yukihiro HOMMA , Maho SATO , Manabu SAWA
摘要： A radio wave measurement system includes: an aerial moving body to move or to hover above a measurement target antenna for radiating a radio wave in a sky direction; and a position measurer to measure a time added position of the aerial moving body. The aerial moving body includes a measurement antenna to receive the radio wave and a radio wave measurer to measure time-added received radio wave data. The aerial moving body further includes a beam shape data generator to generate radiated radio wave data including the received radio wave data and the radio wave source relative position data representing measurement point data that is a position of the aerial moving body at a point of time when the received radio wave data is measured as a relative position with respect to the measurement target antenna.
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60.发明授权公开(公告)号：US10607770B2
公开(公告)日：2020-03-31
申请号：US15571937
申请日：2016-05-18
申请人： Amosense Co., Ltd.
发明人： Jin Won Noh , Kil Jae Jang
IPC分类号： H01F27/36 , H01F38/14 , H01Q1/52 , H01Q21/30 , H01F27/255 , H01F27/25 , H02J50/10 , H02J50/23 , H02J50/70 , H02J7/02 , H04B5/00 , H01Q7/00
摘要： Provided are a shielding unit for wireless charging and a wireless power transfer module including the same. The shielding unit for wireless charging includes a first sheet for a wireless power transfer antenna, and a second sheet for another antenna operating in a different frequency band from that of the wireless power transfer antenna. The first sheet is provided in a first region which is disposed on a side of a virtual boundary line, and the second sheet is provided in a second region which is disposed on the opposite side of the first region.
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