WIRELESS POWER TRANSFER USING DYNAMIC BEAMFORMING

    公开(公告)号:WO2021139893A1

    公开(公告)日:2021-07-15

    申请号:PCT/EP2020/050505

    申请日:2020-01-10

    Abstract: Systems and methods are disclosed herein for Wireless Power Transfer (WPT) using radiative coupling and dynamic beamforming. In some embodiments, a method of operation of an Energy Transmitter (ET) comprises, for each time period (TPi) of a plurality of time periods ({TPi}i=0,i,...,I-1), for each time slot (TSi,j) of one or more time slots ({TSi,j}j=0,1,...,J-1), transmitting, during TSi,j of TPi on a frequency fmod(i,2), a radio frequency signal (ST(i,j)) that is modulated with a signature of a particular Energy Harvester (EH). The method further comprises, for each TPi, attempting, during TPi, to receive, from the particular EH on a frequency fmod(i+1,2), a radio frequency signal (SR(i)) that is modulated with the signature of the particular EH. In this manner, continuous WPT is provided. Corresponding embodiments of an ET are also disclosed. Embodiments of a method performed by an EH and corresponding embodiments of an EH are also disclosed.

    DYNAMIC FOCUSING AND TRACKING FOR WIRELESS POWER TRANSFER ARRAYS

    公开(公告)号:WO2020132139A1

    公开(公告)日:2020-06-25

    申请号:PCT/US2019/067281

    申请日:2019-12-18

    Abstract: Wireless power transfer systems and methods for focusing wireless power transfer arrays are disclosed. One embodiment includes a wireless power generating unit (GU) including a processing system configured to focus the RF power sources by: sending control signals to the control circuitry to perform a plurality of sweeps using each of a plurality of different basis masks; receiving a message from a RU containing a report based upon received power measurements made by the RU; and sending control signals to focus the RF power sources based on the received message from the RU. Furthermore, each sweep includes performing a phase sweep across a phase sweep range at a plurality of phase step increments with respect to a first group of RF power sources identified in a basis mask, where the first group of RF power sources comprises a plurality of RF power sources.

    SYSTEMS, DEVICES, AND METHODS FOR ESTABLISHING A WIRELESS LINK IN A HETEROGENEOUS MEDIUM

    公开(公告)号:WO2023278612A1

    公开(公告)日:2023-01-05

    申请号:PCT/US2022/035574

    申请日:2022-06-29

    Abstract: Described herein are systems, devices, and methods for establishing a wireless link between two or more wireless devices. In some variations, a wireless system may comprise a first device configured to transmit a feedback signal with a first duration. The system may also comprise a second device comprising a transducer array and a processor. The transducer array may be configured to receive the feedback signal on one or more transducer elements of the transducer array for a second duration. The processor may be configured to process the feedback signal received in the second duration by one or more transducer elements of the transducer array to generate feedback signal data. The processor may be further configured to determine a transducer array configuration based at least in part on the feedback signal data. The second device may be configured to exchange one or more wireless signals with the first device using the transducer array configuration.

    MAGNETICS CONFIGURATIONS FOR WIRELESS POWER TRANSFER AND COMMUNICATIONS IN ELECTRONIC DEVICE

    公开(公告)号:WO2022211944A1

    公开(公告)日:2022-10-06

    申请号:PCT/US2022/018142

    申请日:2022-02-28

    Applicant: APPLE INC.

    Inventor: LI, Ye

    Abstract: A device includes a wireless power transfer coil (227a, 227b) couplable to a complementary wireless power transfer coil (247a, 247b) of another device. The device further includes wireless power transmitting and/or receiving circuitry and a processing and communications system, and a wireless communications coil (228) coupled to the processing and communications system. The communications coil includes a winding magnetically couplable to a corresponding communications coil (248) of the complementary device to allow communications between the processing and communications system and the complementary device. The wireless communications coil (228) is separated from the power transfer coil (227a, 227b) along a longitudinal axis of the device.

    SYSTEMS AND METHODS FOR WIRELESS POWER TRANSFER INCLUDING PULSE WIDTH ENCODED DATA COMMUNICATIONS

    公开(公告)号:WO2021141925A1

    公开(公告)日:2021-07-15

    申请号:PCT/US2021/012226

    申请日:2021-01-05

    Inventor: KATZ, Michael H.

    Abstract: A wireless receiver system, for a wireless power transfer system, includes an antenna and a controller, the antenna configured to transmit electrical data signals, the electrical data signals including an encoded message signal. The encoded message signal including one or more encoded message words. The controller is configured to encode one or more message words, of a message signal, into one or more encoded message words of the encoded message signal, based on a coding format. The coding format correlates each of a plurality of correlated ratios with one of a plurality of format words. Each of the plurality of correlated ratios is a ratio of a duty cycle of a pulse to a respective period associated with one or both of the duty cycle and the pulse. Each of the one or more encoded message words are encoded as one of the plurality of correlated ratios.

    SYSTÈME DE COMMUNICATION COMPRENANT UN DISPOSITIF AMOVIBLE ET UN DISPOSITIF D'ACCUEIL

    公开(公告)号:WO2021130183A1

    公开(公告)日:2021-07-01

    申请号:PCT/EP2020/087499

    申请日:2020-12-21

    Applicant: THALES

    Inventor: SANTIAGO, Dorian

    Abstract: La présente invention concerne un système de communication (10) comprenant un dispositif amovible (12) comprenant un écran d'affichage (50) et un dispositif d'accueil (14) apte à recevoir le dispositif amovible (12). Chacun du dispositif amovible (12) et du dispositif d'accueil (14) comprend une puce de communication (31, 51) à extrême haute fréquence, les puces de communication (31, 51) étant disposées l'une en regard de l'autre lorsque le dispositif amovible (12) est reçu dans la dispositif d'accueil (14) et sont aptes à échanger entre elles des données numériques. L'écran d'affichage (50) est apte à afficher des images à partir des données numériques transmises par la puce de communication (31) du dispositif d'accueil (14) à la puce de communication (51) du dispositif amovible (12).

    SYSTEMS AND METHODS FOR WIRELESS POWER TRANSFER INCLUDING PULSE WIDTH ENCODED DATA COMMUNICATIONS

    公开(公告)号:WO2021141925A

    公开(公告)日:2021-07-15

    申请号:PCT/US2021/012226

    申请日:2021-01-05

    Inventor: KATZ, Michael H.

    Abstract: A wireless receiver system, for a wireless power transfer system, includes an antenna and a controller, the antenna configured to transmit electrical data signals, the electrical data signals including an encoded message signal. The encoded message signal including one or more encoded message words. The controller is configured to encode one or more message words, of a message signal, into one or more encoded message words of the encoded message signal, based on a coding format. The coding format correlates each of a plurality of correlated ratios with one of a plurality of format words. Each of the plurality of correlated ratios is a ratio of a duty cycle of a pulse to a respective period associated with one or both of the duty cycle and the pulse. Each of the one or more encoded message words are encoded as one of the plurality of correlated ratios.

    ELECTRONIC DEVICE
    10.
    发明申请
    ELECTRONIC DEVICE 审中-公开

    公开(公告)号:WO2021129595A1

    公开(公告)日:2021-07-01

    申请号:PCT/CN2020/138242

    申请日:2020-12-22

    Inventor: QU, Chunying

    Abstract: An electronic device (20) provided by the disclosure includes: a battery (201); at least two charging circuits (202a, 202b) respectively connected with the battery (201); a charging port (203), connected with the at least two charging circuits (202a, 202b); and at least two wireless receiving circuits (204a, 204b), connected with the at least two charging circuits (202a, 202b) by one-to-one correspondence. The at least two charging circuits (202a, 202b) are configured for processing a voltage and a current output by the charging port or each wireless receiving circuits (204a, 204b), and providing the processed voltage and current to charge the battery (201). The electronic device (20) charges the battery (201) by using multiple charging circuits, which may improve the charging power of the battery (201) and accelerate the charging rate.

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