公开(公告)号：US20220026531A1

公开(公告)日：2022-01-27

申请号：US17492598

申请日：2021-10-02

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

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

IPC分类号： G01S7/41 ,  G01S13/34 ,  G01S13/46 ,  G01S13/00 ,  G01S7/288 ,  H04W4/021

摘要： Methods, apparatus and systems for sound sensing based on radio signals are described. In one example, a described system comprises: a transmitter configured to transmit a first wireless signal through a wireless channel of a venue; a receiver configured to receive a second wireless signal through the wireless channel, wherein the second wireless signal comprises a reflection of the first wireless signal by at least one object in the venue; and a processor. The processor is configured for: obtaining a time series of channel information (CI) of the wireless channel based on the second wireless signal, determining a presence of a vibrating object in the venue based on the time series of CI (TSCI), extracting a sound signal from the TSCI, and reconstructing at least one speech based on the sound signal.

公开(公告)号：US11940550B2

公开(公告)日：2024-03-26

申请号：US17352306

申请日：2021-06-20

申请人： Chao-Lun Mai ,  Dan Bugos ,  Hung-Quoc Duc Lai ,  Spencer Maid ,  Beibei Wang ,  Oscar Chi-Lim Au ,  K. J. Ray Liu

发明人： Chao-Lun Mai ,  Dan Bugos ,  Hung-Quoc Duc Lai ,  Spencer Maid ,  Beibei Wang ,  Oscar Chi-Lim Au ,  K. J. Ray Liu

IPC分类号： G01S7/00 ,  G01S7/41 ,  G01S13/00 ,  G01S13/56 ,  H04W84/18

CPC分类号： G01S7/006 ,  G01S7/415 ,  G01S13/003 ,  G01S13/56 ,  H04W84/18

摘要： Methods, apparatus and systems for wireless motion monitoring to ensure security are described. In one example, a described system comprises: a transmitter configured for transmitting a first wireless signal through a wireless multipath channel of a venue; a receiver configured for receiving a second wireless signal through the wireless multipath channel; and a processor. The second wireless signal differs from the first wireless signal due to the wireless multipath channel and a motion of an object in the venue. The processor is configured for: obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the second wireless signal; computing a spatial-temporal information (STI) based on the TSCI; monitoring the motion of the object based on the TSCI and the STI; performing a task based on the monitoring; and generating a response based on the task.

公开(公告)号：US20230388840A1

公开(公告)日：2023-11-30

申请号：US18199963

申请日：2023-05-21

申请人： Oscar Chi-Lim Au ,  Beibei Wang ,  K. J. Ray Liu ,  Hung-Quoc Duc Lai

发明人： Oscar Chi-Lim Au ,  Beibei Wang ,  K. J. Ray Liu ,  Hung-Quoc Duc Lai

IPC分类号： H04W24/10

CPC分类号： H04W24/10 ,  H04W84/12

摘要： Methods, apparatus and systems for wireless sensing are described. In one example, a described system in a wireless data communication network comprises: a transmitter configured to transmit a time series of at least one wireless sounding signal (WSS) based on a standard wireless network protocol associated with the wireless data communication network, and a receiver. The wireless data communication network comprises a physical (PHY) layer, a medium access control (MAC) layer, and at least one higher layer. The receiver is configured to: receive the time series of at least one WSS (TSWSS) based on the standard wireless network protocol through a wireless channel of a venue, and perform a plurality of wireless sensing measurements based on the received TSWSS to obtain sensing measurement results based on the standard wireless network protocol. The PHY layer or the MAC layer of the receiver provides the sensing measurement results locally to the at least one higher layer of the receiver based on the standard wireless network protocol. The sensing measurement results are available to the at least one higher layer of the receiver for performing a sensing-based task based on the sensing measurement results.

公开(公告)号：US11770197B2

公开(公告)日：2023-09-26

申请号：US17113023

申请日：2020-12-05

申请人： Feng Zhang ,  Beibei Wang ,  Hung-Quoc Duc Lai ,  Oscar Chi-Lim Au ,  K. J. Ray Liu ,  Yexin Cao

发明人： Feng Zhang ,  Beibei Wang ,  Hung-Quoc Duc Lai ,  Oscar Chi-Lim Au ,  K. J. Ray Liu ,  Yexin Cao

IPC分类号： H04B17/309

CPC分类号： H04B17/309

摘要： Methods, apparatus and systems for improving accuracy and efficiency of wireless monitoring are described. In one example, a described method comprises: transmitting a first wireless signal from a first wireless device with transmit antennas through a wireless multipath channel of a venue; receiving a second wireless signal by a second wireless device with receive antennas through the wireless multipath channel, wherein the second wireless signal differs from the first wireless signal due to the wireless multipath channel that is impacted by a motion of an object in the venue; obtaining a number of time series of channel information (TSCI) of the wireless multipath channel based on the second wireless signal, wherein each TSCI is associated with a respective one of the transmit antennas and a respective one of the receive antennas; preprocessing the number of TSCI; and monitoring the motion of the object based on the number of preprocessed TSCI.

公开(公告)号：USD997162S1

公开(公告)日：2023-08-29

申请号：US29761001

申请日：2020-12-05

申请人： Chao-Lun Mai ,  Wang Yin Chen ,  Beibei Wang ,  Oscar Chi-Lim Au ,  K. J. Ray Liu

设计人： Chao-Lun Mai ,  Wang Yin Chen ,  Beibei Wang ,  Oscar Chi-Lim Au ,  K. J. Ray Liu

摘要： FIG. 1 is a first perspective view of a command device showing our new design.
FIG. 2 is a second perspective view of the command device.
FIG. 3 is a front elevational view of the command device.
FIG. 4 is a rear elevational view of the command device.
FIG. 5 is a right side elevational view of the command device.
FIG. 6 is a left side elevational view of the command device.
FIG. 7 is a top plan view of the command device; and,
FIG. 8 is a bottom plan view of the command device.
In the drawings, the broken lines depict a portion of the command device and form no part of the claim.
The command device is intended to be used as a device for generating commands for a security system.

公开(公告)号：USD989651S1

公开(公告)日：2023-06-20

申请号：US29761000

申请日：2020-12-05

申请人： Chao-Lun Mai ,  Wang Yin Chen ,  Beibei Wang ,  Oscar Chi-Lim Au ,  K. J. Ray Liu

设计人： Chao-Lun Mai ,  Wang Yin Chen ,  Beibei Wang ,  Oscar Chi-Lim Au ,  K. J. Ray Liu

摘要： FIG. 1 is a first perspective view of a sense device showing our new design.
FIG. 2 is a second perspective view of the sense device.
FIG. 3 is a front elevational view of the sense device.
FIG. 4 is a rear elevational view of the sense device.
FIG. 5 is a right side elevational view of the sense device.
FIG. 6 is a left side elevational view of the sense device.
FIG. 7 is a top plan view of the sense device; and,
FIG. 8 is a bottom plan view of the sense device.
The sense device is intended to be used as a device for sensing movements for a security system.

公开(公告)号：US20230014580A1

公开(公告)日：2023-01-19

申请号：US17891037

申请日：2022-08-18

申请人： Guozhen Zhu ,  Chenshu Wu ,  Beibei Wang ,  K. J. Ray Liu ,  Oscar Chi-Lim Au

发明人： Guozhen Zhu ,  Chenshu Wu ,  Beibei Wang ,  K. J. Ray Liu ,  Oscar Chi-Lim Au

IPC分类号： G01C21/00 ,  H04W64/00

摘要： Methods, apparatus and systems for map reconstruction based on wireless tracking are described. In one example, a described system comprises: a sensor configured to collect sensing data in a venue and obtain a plurality of trajectories, and a processor. Each trajectory is a time series of spatial coordinates (TSSC) representing a path traversed by a respective object in the venue. Each TSSC is accompanied by at least one respective time series of sensing data (TSSD) collected while the respective object traverses the path in the venue. The processor is configured for: segmenting each TSSC and its accompanying at least one TSSD into segments, bundling the plurality of trajectories based on similarity measures between pairs of the segments, fusing the bundled trajectories to generate fused trajectories, computing a shape of the fused trajectories, and generating a map of the venue based on the computed shape.

公开(公告)号：USD967176S1

公开(公告)日：2022-10-18

申请号：US29766337

申请日：2021-01-14

申请人： Chao-Lun Mai ,  Dan Bugos ,  Beibei Wang ,  Oscar Chi-Lim Au ,  K. J. Ray Liu

设计人： Chao-Lun Mai ,  Dan Bugos ,  Beibei Wang ,  Oscar Chi-Lim Au ,  K. J. Ray Liu

公开(公告)号：US11439344B2

公开(公告)日：2022-09-13

申请号：US16945837

申请日：2020-08-01

申请人： Feng Zhang ,  Beibei Wang ,  Chenshu Wu ,  Min Wu ,  Dan Bugos ,  Hangfang Zhang ,  K. J. Ray Liu ,  Oscar Chi-Lim Au

发明人： Feng Zhang ,  Beibei Wang ,  Chenshu Wu ,  Min Wu ,  Dan Bugos ,  Hangfang Zhang ,  K. J. Ray Liu ,  Oscar Chi-Lim Au

IPC分类号： A61B5/00 ,  A61B5/113

摘要： Methods, apparatus and systems for wireless sleep monitoring are disclosed. In one embodiment, a described sleep monitoring system comprises: at least one sensor in a venue, wherein the at least one sensor comprises a wireless non-contact sensor having no physical contact with the user; a processor communicatively coupled to the at least one sensor; a memory communicatively coupled to the processor; and a set of instructions stored in the memory. The set of instructions, when executed by the processor, causes the processor to perform: obtaining, based on the at least one sensor, a plurality of time series of sensing features (TSSF) associated with a sleep motion of a user in the venue, and monitoring the sleep motion of the user jointly based on the plurality of TSSF. At least one TSSF of the plurality of TSSF is obtained by: communicating, based on the wireless non-contact sensor, a wireless signal in a wireless multipath channel of the venue, extracting a time series of channel information (TSCI) of the wireless multipath channel of the venue from the wireless signal, and obtaining the at least one TSSF based on the TSCI.

公开(公告)号：US11340345B2

公开(公告)日：2022-05-24

申请号：US16798343

申请日：2020-02-22

申请人： Chenshu Wu ,  Feng Zhang ,  Beibei Wang ,  K. J. Ray Liu ,  Oscar Chi-Lim Au

发明人： Chenshu Wu ,  Feng Zhang ,  Beibei Wang ,  K. J. Ray Liu ,  Oscar Chi-Lim Au

IPC分类号： G01S13/72 ,  G01S7/41 ,  G01S13/00

摘要： Methods, apparatus and systems for wireless object tracking are described. In one example, a described wireless tracking system comprises: a transmitter, a receiver, and a processor. The transmitter is configured for transmitting a first wireless signal using a plurality of transmit antennas towards at least one object in a venue through a wireless multipath channel of the venue. The receiver is configured for: receiving a second wireless signal using a plurality of receive antennas through the wireless multipath channel between the transmitter and the receiver. The second wireless signal differs from the first wireless signal due to the wireless multipath channel and a modulation of the first wireless signal by the at least one object. The processor is configured for obtaining a set of channel information (CI) of the wireless multipath channel based on the second wireless signal received by the receiver, and tracking the at least one object simultaneously based on the set of CI. Each CI in the set is associated with a respective one of the plurality of transmit antennas and a respective one of the plurality of receive antennas.