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    METHOD, APPARATUS, AND SYSTEM FOR WIRELESS VITAL MONITORING USING HIGH FREQUENCY SIGNALS
    2.
    发明申请
    METHOD, APPARATUS, AND SYSTEM FOR WIRELESS VITAL MONITORING USING HIGH FREQUENCY SIGNALS 有权

    公开(公告)号：US20210247483A1

    公开(公告)日：2021-08-12

    申请号：US17214838

    申请日：2021-03-27

    申请人： Fengyu Wang ,  Beibei Wang ,  Xiaolu Zeng ,  Chenshu Wu ,  K. J. Ray Liu ,  Oscar Chi-Lim Au

    发明人： Fengyu Wang ,  Beibei Wang ,  Xiaolu Zeng ,  Chenshu Wu ,  K. J. Ray Liu ,  Oscar Chi-Lim Au

    IPC分类号： G01S7/00 ,  G01S13/00 ,  G01S13/56 ,  G01S7/41

    摘要： Methods, apparatus and systems for wireless vital monitoring are described. In one example, a described system comprises: a transmitter configured for transmitting a first wireless signal through a wireless channel of a venue; a receiver configured for receiving a second wireless signal through the wireless channel; and a processor. The second wireless signal comprises a reflection of the first wireless signal by at least one living being having at least one repetitive motion in the venue. The processor is configured for: obtaining a time series of channel information (TSCI) of the wireless channel based on the second wireless signal; generating, for each living being of the at least one living being, a vital signal representing all repetitive motions of the living being based on the TSCI; extracting, from the vital signal of each living being, a heartbeat signal; and monitoring, for each living being in the venue, a heart rate variability based on the heartbeat signal.

    METHOD, APPARATUS, AND SYSTEM FOR WIRELESS VITAL MONITORING USING HIGH FREQUENCY SIGNALS
    3.
    发明申请
    METHOD, APPARATUS, AND SYSTEM FOR WIRELESS VITAL MONITORING USING HIGH FREQUENCY SIGNALS 有权

    公开(公告)号：US20230081472A1

    公开(公告)日：2023-03-16

    申请号：US17945995

    申请日：2022-09-15

    申请人： Fengyu Wang ,  Beibei Wang ,  Xiaolu Zeng ,  Chenshu Wu ,  K. J. Ray Liu ,  Oscar Chi-Lim Au

    发明人： Fengyu Wang ,  Beibei Wang ,  Xiaolu Zeng ,  Chenshu Wu ,  K. J. Ray Liu ,  Oscar Chi-Lim Au

    IPC分类号： A61B5/00

    摘要： Methods, apparatus and systems for wireless vital sign monitoring are described. In one example, a described system comprises: a transmitter configured to transmit a wireless signal through a wireless channel of a venue; a receiver configured to receive the wireless signal through the wireless channel that is being impacted by an object motion of an object in the venue; and a processor. At least one of the transmitter or the receiver comprises an array of antennas used to transmit or receive the wireless signal. The object motion comprises at least one non-periodic body motion of the object and at least one periodic vital-sign motion of the object. The processor is configured for: segmenting space around the venue into a plurality of sectors based on a beamforming and the received wireless signal, wherein each sector of the plurality of sectors is associated with a spatial direction relative to the array of antennas, obtaining a plurality of time series of channel information (CI) of the wireless channel based on the beamforming, wherein each time series of CI (TSCI) of the plurality of TSCI is associated with a respective sector of the plurality of sectors, isolating the object motion of the object in the plurality of TSCI to generate a plurality of isolated TSCI, compensating for the at least one non-periodic body motion of the object in the plurality of isolated TSCI to generate a plurality of compensated TSCI, and monitoring the at least one periodic vital-sign motion of the object based on the plurality of compensated TSCI.

    METHOD, APPARATUS, AND SYSTEM FOR WIRELESS SENSING BASED ON CHANNEL INFORMATION
    5.
    发明申请
    METHOD, APPARATUS, AND SYSTEM FOR WIRELESS SENSING BASED ON CHANNEL INFORMATION 有权

    公开(公告)号：US20220308195A1

    公开(公告)日：2022-09-29

    申请号：US17838228

    申请日：2022-06-12

    申请人： Xiaolu Zeng ,  Beibei Wang ,  Chenshu Wu ,  Sai Deepika Regani ,  K. J. Ray Liu ,  Oscar Chi-Lim Au

    发明人： Xiaolu Zeng ,  Beibei Wang ,  Chenshu Wu ,  Sai Deepika Regani ,  K. J. Ray Liu ,  Oscar Chi-Lim Au

    IPC分类号： G01S13/00 ,  G01S13/56

    摘要： Methods, apparatus and systems for wireless sensing based on channel information are described. In one example, a described system comprises: a transmitter configured to transmit a wireless signal through a wireless multipath channel of a venue, wherein the wireless multipath channel is impacted by a motion of an object in the venue; a receiver configured to receive the wireless signal through the wireless multipath channel, wherein the received wireless signal differs from the transmitted wireless signal due to the wireless multipath channel and the motion of the object; and a processor. The processor is configured for: obtaining N1 time series of channel information (TSCI) of the wireless multipath channel based on the received wireless signal, computing N4 selected projections based on the N1 TSCI, and performing a sensing task associated with the motion of the object based on the N4 selected projections. N4 is a positive integer. N1=N2*N3. N2 is a quantity of transmit antennas on the transmitter. N3 is a quantity of receive antennas on the receiver. Each TSCI is associated with a respective transmit antenna of the transmitter and a respective receive antenna of the receiver.

    METHOD, APPARATUS, AND SYSTEM FOR WIRELESS SENSING BASED ON LINKWISE MOTION STATISTICS
    6.
    发明申请
    METHOD, APPARATUS, AND SYSTEM FOR WIRELESS SENSING BASED ON LINKWISE MOTION STATISTICS 有权

    公开(公告)号：US20220299619A1

    公开(公告)日：2022-09-22

    申请号：US17838244

    申请日：2022-06-12

    申请人： Yuqian Hu ,  Beibei Wang ,  Sai Deepika Regani ,  Peng Zan ,  Chenshu Wu ,  Dan Bugos ,  Xiaolu Zeng ,  Hung-Quoc Duc Lai ,  K. J. Ray Liu ,  Oscar Chi-Lim Au

    发明人： Yuqian Hu ,  Beibei Wang ,  Sai Deepika Regani ,  Peng Zan ,  Chenshu Wu ,  Dan Bugos ,  Xiaolu Zeng ,  Hung-Quoc Duc Lai ,  K. J. Ray Liu ,  Oscar Chi-Lim Au

    IPC分类号： G01S13/00 ,  G01S13/56

    摘要： Methods, apparatus and systems for wireless sensing based on linkwise motion statistics (link-MS) are described. In one example, a described method comprises: determining a plurality of heterogeneous wireless devices of a wireless sensing system in a venue; determining a plurality of device-links each of comprises two of the heterogeneous wireless devices, one functioning as a transmitter and the other functioning as a receiver; for each respective device-link of the plurality of device-links, transmitting a respective wireless signal from a respective transmitter of the respective device-link through a wireless multipath channel of the venue, wherein the wireless multipath channel is impacted by a motion of an object in the venue, receiving the respective wireless signal by a respective receiver of the respective device-link through the wireless multipath channel, wherein the respective received wireless signal differs from the respective transmitted wireless signal due to the wireless multipath channel of the venue and the motion of the object, obtaining a respective time series of channel information (TSCI) of the wireless multipath channel based on the respective received wireless signal of the respective device-link, computing a respective link-MS for the respective device-link based on the respective TSCI; performing a sensing task associated with the motion of the object based on at least one of: all the TSCI or all the link-MS; and computing a location in the venue associated with the sensing task based on all the link-MS.

    Method, apparatus, and system for wireless vital monitoring using high frequency signals
    7.
    发明授权
    Method, apparatus, and system for wireless vital monitoring using high frequency signals 有权

    公开(公告)号：US12004838B2

    公开(公告)日：2024-06-11

    申请号：US17945995

    申请日：2022-09-15

    申请人： Fengyu Wang ,  Beibei Wang ,  Xiaolu Zeng ,  Chenshu Wu ,  K. J. Ray Liu ,  Oscar Chi-Lim Au

    发明人： Fengyu Wang ,  Beibei Wang ,  Xiaolu Zeng ,  Chenshu Wu ,  K. J. Ray Liu ,  Oscar Chi-Lim Au

    IPC分类号： A61B5/00 ,  A61B5/024 ,  A61B5/0507 ,  G01S13/88

    CPC分类号： A61B5/0015 ,  A61B5/0026 ,  A61B5/02405 ,  A61B5/0507 ,  A61B5/7207 ,  G01S13/88

    摘要： Methods, apparatus and systems for wireless vital sign monitoring are described. In one example, a described system comprises: a transmitter configured to transmit a wireless signal through a wireless channel of a venue; a receiver configured to receive the wireless signal through the wireless channel that is being impacted by an object motion of an object in the venue; and a processor. At least one of the transmitter or the receiver comprises an array of antennas used to transmit or receive the wireless signal. The object motion comprises at least one non-periodic body motion of the object and at least one periodic vital-sign motion of the object. The processor is configured for: segmenting space around the venue into a plurality of sectors based on a beamforming and the received wireless signal, wherein each sector of the plurality of sectors is associated with a spatial direction relative to the array of antennas, obtaining a plurality of time series of channel information (CI) of the wireless channel based on the beamforming, wherein each time series of CI (TSCI) of the plurality of TSCI is associated with a respective sector of the plurality of sectors, isolating the object motion of the object in the plurality of TSCI to generate a plurality of isolated TSCI, compensating for the at least one non-periodic body motion of the object in the plurality of isolated TSCI to generate a plurality of compensated TSCI, and monitoring the at least one periodic vital-sign motion of the object based on the plurality of compensated TSCI.

    METHOD, APPARATUS, AND SYSTEM FOR WIRELESS SENSING BASED ON DEEP LEARNING
    10.
    发明公开
    METHOD, APPARATUS, AND SYSTEM FOR WIRELESS SENSING BASED ON DEEP LEARNING 审中-公开

    公开(公告)号：US20240175983A1

    公开(公告)日：2024-05-30

    申请号：US18401681

    申请日：2024-01-01

    申请人： Guozhen Zhu ,  Beibei Wang ,  Weihang Gao ,  Yuqian Hu ,  Chenshu Wu ,  Xiaolu Zeng ,  K. J. Ray Liu ,  Oscar Chi-Lim Au

    发明人： Guozhen Zhu ,  Beibei Wang ,  Weihang Gao ,  Yuqian Hu ,  Chenshu Wu ,  Xiaolu Zeng ,  K. J. Ray Liu ,  Oscar Chi-Lim Au

    IPC分类号： G01S7/41 ,  G01S13/56

    CPC分类号： G01S7/415 ,  G01S13/56

    摘要： Methods, apparatus and systems for wireless sensing based on deep learning are described. For example, a described method comprises: transmitting a wireless signal through a wireless multipath channel of a venue, wherein the wireless multipath channel is impacted by a motion of an object in the venue; receiving the wireless signal through the wireless multipath channel of the venue, wherein the received wireless signal differs from the transmitted wireless signal due to the wireless multipath channel and the motion of the object; obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the received wireless signal; computing a plurality of autocorrelation functions based on the TSCI, each autocorrelation function (ACF) computed based on CI of the TSCI in a respective sliding time window; constructing at least one ACF vector, wherein each respective ACF vector is a vector associated with a respective ACF comprising multiple vector elements each associated with a respective time lag, each vector element being a value of the respective ACF evaluated at the respective time lag; rearranging the at least one ACF vector into rearranged ACF data, wherein each ACF vector is a one-dimensional (1D) ACF-block; and performing a wireless sensing task based on a task engine to do a processing using the rearranged ACF data as an input.