Patents by Inventor Oscar Chi-Lim Au

Oscar Chi-Lim Au has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11181486
    Abstract: Methods, apparatus and systems for wireless material sensing are described. In one example, a described system comprises: a transmitter configured for transmitting, using transmit antennas, a first wireless signal through a wireless multipath channel of a venue; a receiver configured for receiving, using receive antennas, a second wireless signal through the wireless multipath channel; and a processor. The second wireless signal comprises a reflection or a refraction of the first wireless signal at a surface of a target material of an object in the venue. The processor is configured for: obtaining a plurality of channel information (CI) of the wireless multipath channel based on the second wireless signal, wherein each CI is associated with a respective transmit antenna and a respective receive antenna; computing a material analytics based on the plurality of CI; and determining a type of the target material of the object based on the material analytics.
    Type: Grant
    Filed: February 20, 2021
    Date of Patent: November 23, 2021
    Assignee: ORIGIN WIRELESS, INC.
    Inventors: Chenshu Wu, Beibei Wang, Oscar Chi-Lim Au, Feng Zhang, K. J. Ray Liu
  • Publication number: 20210311166
    Abstract: Methods, apparatus and systems for wirelessly monitoring a micro motion of an object 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.
    Type: Application
    Filed: June 18, 2021
    Publication date: October 7, 2021
    Inventors: Chenshu Wu, Beibei Wang, Peng Zan, Sai Deepika Regani, Xiaolu Zeng, Hung-Quoc Duc Lai, K. J. Ray Liu, Oscar Chi-Lim Au
  • Publication number: 20210311162
    Abstract: 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.
    Type: Application
    Filed: June 20, 2021
    Publication date: October 7, 2021
    Inventors: Chao-Lun Mai, Dan Bugos, Hung-Quoc Duc Lai, Spencer Maid, Beibei Wang, Oscar Chi-Lim Au, K. J. Ray Liu
  • Publication number: 20210247483
    Abstract: 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.
    Type: Application
    Filed: March 27, 2021
    Publication date: August 12, 2021
    Inventors: Fengyu Wang, Beibei Wang, Xiaolu Zeng, Chenshu Wu, K. J. Ray Liu, Oscar Chi-Lim Au
  • Publication number: 20210232235
    Abstract: Methods, apparatus and systems for wireless writing tracking 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 comprises a reflection of the first wireless signal by a tip of a writing instrument in the venue. The processor is configured for: obtaining a time series of channel information (CI) of the wireless multipath channel based on the second wireless signal, wherein each CI comprises at least one of: a channel state information (CSI), channel impulse response (CIR), channel frequency response (CFR), or received signal strength index (RSSI); and tracking a movement of the tip of the writing instrument based on the time series of CI (TSCI).
    Type: Application
    Filed: February 20, 2021
    Publication date: July 29, 2021
    Inventors: Sai Deepika Regani, Chenshu Wu, Beibei Wang, Min Wu, K. J. Ray Liu, Oscar Chi-Lim Au
  • Publication number: 20210215789
    Abstract: Methods, apparatus and systems for wireless proximity sensing 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 that is impacted by a movement of an object in the venue.
    Type: Application
    Filed: March 27, 2021
    Publication date: July 15, 2021
    Inventors: Yuqian Hu, Beibei Wang, Muhammed Zahid Ozturk, Feng Zhang, K. J. Ray Liu, Oscar Chi-Lim Au, Xiaolu Zeng, Chenshu Wu, Fengyu Wang
  • Publication number: 20210215788
    Abstract: Methods, apparatus and systems for wirelessly tracking keystrokes on a surface are described. In one example, a described system comprises: a transmitter configured for transmitting, using a transmit antenna, a first wireless signal through a wireless channel of a venue including the surface; a receiver configured for receiving, using a plurality of receive antennas, 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 moving object in the venue; and a processor.
    Type: Application
    Filed: March 27, 2021
    Publication date: July 15, 2021
    Inventors: Yuqian Hu, Beibei Wang, Chenshu Wu, K. J. Ray Liu, Oscar Chi-Lim Au
  • Publication number: 20210190702
    Abstract: Methods, apparatus and systems for wireless material sensing are described. In one example, a described system comprises: a transmitter configured for transmitting, using transmit antennas, a first wireless signal through a wireless multipath channel of a venue; a receiver configured for receiving, using receive antennas, a second wireless signal through the wireless multipath channel; and a processor. The second wireless signal comprises a reflection or a refraction of the first wireless signal at a surface of a target material of an object in the venue. The processor is configured for: obtaining a plurality of channel information (CI) of the wireless multipath channel based on the second wireless signal, wherein each CI is associated with a respective transmit antenna and a respective receive antenna; computing a material analytics based on the plurality of CI; and determining a type of the target material of the object based on the material analytics.
    Type: Application
    Filed: February 20, 2021
    Publication date: June 24, 2021
    Inventors: Chenshu Wu, Beibei Wang, Oscar Chi-Lim Au, Feng Zhang, K. J. Ray Liu
  • Patent number: 11035940
    Abstract: Methods, apparatus and systems for monitoring a presence or a motion of an object in a proximity of an apparatus are described. In one example, a described apparatus is in a venue for wireless proximity monitoring. The apparatus comprises: a transmitter, a receiver, and a processor. The transmitter is configured for transmitting a wireless signal through a wireless multipath channel, wherein the wireless multipath channel is impacted by a motion of an object within a proximity of the apparatus. The receiver is configured for: receiving the wireless signal through the wireless multipath channel between the transmitter and the receiver, and obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the wireless signal received by the receiver. The processor is configured for monitoring the motion of the object within the proximity of the apparatus based at least partially on the TSCI.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: June 15, 2021
    Assignee: ORIGIN WIRELESS, INC.
    Inventors: Qinyi Xu, Yi Han, Hung-Quoc Duc Lai, Beibei Wang, Oscar Chi-Lim Au, K. J. Ray Liu
  • Publication number: 20210173045
    Abstract: Methods, apparatus and systems for periodic or transient motion detection, e.g. fall event detection, based on wireless signals 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 that is impacted by a target 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 time series of spatial-temporal information (STI) of the object based on the TSCI, and detecting the target motion of the object based on the time series of STI (TSSTI).
    Type: Application
    Filed: February 20, 2021
    Publication date: June 10, 2021
    Inventors: Yuqian Hu, Feng Zhang, Beibei Wang, Chenshu Wu, K. J. Ray Liu, Oscar Chi-Lim Au
  • Publication number: 20210173046
    Abstract: Methods, apparatus and systems for wireless motion recognition 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 that is impacted by 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, tracking the motion of the object based on the TSCI to generate a gesture trajectory of the object, and determining a gesture shape based on the gesture trajectory and a plurality of pre-determined gesture shapes.
    Type: Application
    Filed: February 20, 2021
    Publication date: June 10, 2021
    Inventors: Sai Deepika Regani, Beibei Wang, Min Wu, K. J. Ray Liu, Oscar Chi-Lim Au
  • Patent number: 11025475
    Abstract: The present teaching relates to collecting and processing location-specific wireless waveforms for use in wireless communication, components, methods, apparatuses, servers, and systems. In one embodiment, a disclosed system comprises a first wireless transceiver of a first device, and at least one second wireless transceiver of at least one second device. The first wireless transceiver of the first device is wirelessly coupled to the at least one second wireless transceiver through a wireless multipath channel associated with a space. The first device with the first wireless transceiver comprises a processor and a memory, which are configured to obtain a set of channel information (CI) and perform a task associated with the space based on the set of channel information.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: June 1, 2021
    Assignee: ORIGIN WIRELESS, INC.
    Inventors: K. J. Ray Liu, Hung-Quoc Duc Lai, Beibei Wang, Chen Chen, Oscar Chi-Lim Au
  • Publication number: 20210160709
    Abstract: Methods, apparatus and systems for providing automatic assistance based on wireless monitoring are described. In one example, a described automatic assistant system comprises: a transmitter, a receiver, a processor, and an assistant device. The transmitter is configured for transmitting a first wireless signal through a wireless multipath channel of a venue. The receiver is configured for receiving a second wireless signal through the wireless multipath channel. 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. The processor is configured for: obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the second wireless signal, and monitoring the motion of the object in the venue based on the TSCI. The assistant device is configured for generating an assistance with respect to the object in the venue based on the monitoring.
    Type: Application
    Filed: December 5, 2020
    Publication date: May 27, 2021
    Inventors: Masato Marumo, Beibei Wang, Oscar Chi-Lim Au, Hung-Quoc Duc Lai, K. J. Ray Liu
  • Patent number: 11012285
    Abstract: The present teaching relates to vital sign detection and monitoring based on channel state information (CSI). In one example, an apparatus for vital sign detection is disclosed. The apparatus comprises a receiver, a processor and a memory communicatively coupled with the processor. The receiver is configured for receiving at least one wireless signal from a multipath channel that can be impacted by a vital sign of at least one living being. The processor is configured for: extracting a time series of channel state information (CSI) for the multipath channel from the at least one wireless signal, obtaining one or more periodic fluctuations based on a spectral analysis of the time series of CSI, and determining whether the vital sign is present based on the one or more periodic fluctuations.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: May 18, 2021
    Assignee: ORIGIN WIRELESS, INC.
    Inventors: Chen Chen, Beibei Wang, Yi Han, Feng Zhang, Hung-Quoc Duc Lai, Yan Chen, K. J. Ray Liu, Oscar Chi-Lim Au
  • Publication number: 20210136515
    Abstract: Methods, apparatus and systems for wireless monitoring for motion detection and localization are described. In one example, a described system comprises: Type 1 devices; Type 2 devices; and a processor. Each Type 2 device is configured for: asynchronously receiving, from each of a respective subset of Type 1 devices associated with the Type 2 device, a respective wireless signal through a respective wireless multipath channel impacted by a motion of an object in a venue; asynchronously receiving, from each of a subset of a respective set of at least one other Type 2 device interconnected wirelessly with the Type 2 device, a respective wireless signal through a respective wireless multipath channel impacted by the motion of the object; and obtaining a set of asynchronous time series of channel information (ATSCI), wherein each ATSCI is associated with a respective wireless multipath channel and is obtained based on the asynchronously received respective wireless signal.
    Type: Application
    Filed: January 14, 2021
    Publication date: May 6, 2021
    Inventors: Feng Zhang, Beibei Wang, Hung-Quoc Duc Lai, K. J. Ray Liu, Oscar Chi-Lim Au
  • Publication number: 20210136681
    Abstract: Methods, apparatus and systems for power supply design of a wireless monitoring system or device are described. In one example, an accessory of a wireless monitoring system is described. The accessory comprises at least one physical attachment feature attaching the accessory to at least one of: a first wireless device in the wireless monitoring system or a second wireless device in the wireless monitoring system. The first wireless device is configured for transmitting a first wireless signal through a wireless multipath channel of a venue. The second wireless device is configured for receiving a second wireless signal through the wireless multipath channel. 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.
    Type: Application
    Filed: January 14, 2021
    Publication date: May 6, 2021
    Inventors: Chao-Lun Mai, Beibei Wang, Dan Bugos, Oscar Chi-Lim Au, Hung-Quoc Duc Lai, K.J. Ray Liu
  • Publication number: 20210091866
    Abstract: 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.
    Type: Application
    Filed: December 5, 2020
    Publication date: March 25, 2021
    Inventors: Feng Zhang, Beibei Wang, Hung-Quoc Duc Lai, Oscar Chi-Lim Au, K. J. Ray Liu
  • Publication number: 20200405223
    Abstract: Methods, apparatus and systems for wireless monitoring and tracking are described. In one example, a described method of a wireless monitoring system comprises: transmitting a wireless signal that is impacted by a wireless multipath channel in a venue and a modulation of an object undergoing a motion in the venue, to obtain a set of channel information (CI) of the wireless multipath channel; performing a monitoring task by monitoring the object and the motion; determining a plurality of admissible system states of the wireless monitoring system, wherein each admissible system state is associated with a respective setting of at least one of: the wireless signal, a series of sounding signals in the wireless signal, or the monitoring task; choosing one of the admissible system states to be a system state of the wireless monitoring system based on the monitoring task; and applying a setting associated with the chosen admissible system state to the wireless monitoring system.
    Type: Application
    Filed: September 13, 2020
    Publication date: December 31, 2020
    Inventors: Chao-Lun Mai, Jeng-Feng Lee, Hung-Quoc Duc LAI, Dan Bugos, Hangfang Zhang, Beibei Wang, Oscar Chi-Lim Au, K.J. Ray Liu
  • Publication number: 20200408875
    Abstract: Methods, apparatus and systems for powering a wireless monitoring system are described. In one example, a described method comprises: positioning and powering a transmitter at a first location in a venue; positioning and powering a receiver at a second location in the venue; transmitting a wireless signal from the transmitter through a wireless multipath channel of the venue; receiving the wireless signal by the receiver through the wireless multipath channel, wherein the wireless signal is impacted by the wireless multipath channel and a modulation of an object undergoing a motion in the venue; obtaining a set of channel information (CI) of the wireless multipath channel based on the wireless signal; and monitoring the object and the motion of the object based on the set of CI.
    Type: Application
    Filed: September 13, 2020
    Publication date: December 31, 2020
    Inventors: Chao-Lun Mai, Jeng-Feng Lee, David N. Claffey, Hangfang Zhang, Hung-Quoc Duc Lai, Beibei Wang, Oscar Chi-Lim Au, K. J. Ray Liu
  • Publication number: 20200406860
    Abstract: Methods, apparatus and systems for vehicle wireless monitoring are described. In one example, a described method comprises: transmitting a first wireless signal from a first wireless device through a wireless multipath channel of a venue, the venue comprising a vehicle and an immediate vicinity of the vehicle; receiving a second wireless signal by a second wireless device in the venue through the wireless multipath channel, wherein the second wireless signal differs from the first wireless signal due to the wireless multipath channel and a modulation by an object undergoing a motion in the venue; obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the second wireless signal; and performing a monitoring task by monitoring, based on the TSCI, at least one of: the vehicle, the object or the motion of the object.
    Type: Application
    Filed: September 13, 2020
    Publication date: December 31, 2020
    Inventors: Chao-Lun Mai, Jeng-Feng Lee, David N. Claffey, Hangfang Zhang, Feng Zhang, Hung-Quoc Duc Lai, Beibei Wang, Oscar Chi-Lim Au, K. J. Ray Liu