Patents by Inventor Ray Liu

Ray Liu 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).

  • Publication number: 20240129778
    Abstract: 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.
    Type: Application
    Filed: December 23, 2023
    Publication date: April 18, 2024
    Inventors: Oscar Chi-Lim Au, Beibei Wang, K. J. Ray Liu, Hung-Quoc Duc Lai
  • Publication number: 20240125888
    Abstract: Methods, apparatus and systems for wireless human-nonhuman motion detection are described.
    Type: Application
    Filed: December 20, 2023
    Publication date: April 18, 2024
    Inventors: Guozhen Zhu, Beibei Wang, Yuqian Hu, Chenshu Wu, Xiaolu Zeng, K.J. Ray Liu, Oscar Chi-Lim Au
  • Publication number: 20240125915
    Abstract: 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.
    Type: Application
    Filed: December 23, 2023
    Publication date: April 18, 2024
    Inventors: Oscar Chi-Lim Au, Beibei Wang, K.J. Ray Liu, Hung-Quoc Duc Lai
  • Publication number: 20240126269
    Abstract: An upper point cloud estimator is configured to estimate a three-dimensional representation of the crop canopy based on collected stereo vision image data. A lower point cloud estimator is configured to estimate a ground three-dimensional representation or lower point of the ground based on the determined average. The electronic data processor is configured to determine one or more differences between the upper point cloud (or upper surface) of the crop canopy and a lower point cloud of the ground, where each difference is associated with a cell within a grid defined by the front region. The electronic data processor is capable of providing the differences to a data processing system to estimate a yield or differential yield for the front region, among other things.
    Type: Application
    Filed: October 18, 2022
    Publication date: April 18, 2024
    Inventors: Ashraf Qadir, Qiang Ray Liu, Ryan R. White
  • Publication number: 20240129166
    Abstract: 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.
    Type: Application
    Filed: December 23, 2023
    Publication date: April 18, 2024
    Inventors: Oscar Chi-Lim Au, Beibei Wang, K. J. Ray Liu, Hung-Quoc Duc Lai
  • Publication number: 20240129779
    Abstract: 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.
    Type: Application
    Filed: December 23, 2023
    Publication date: April 18, 2024
    Inventors: Oscar Chi-Lim Au, Beibei Wang, K. J. Ray Liu, Hung-Quoc Duc Lai
  • Patent number: 11953618
    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: Grant
    Filed: February 20, 2021
    Date of Patent: April 9, 2024
    Assignee: ORIGIN RESEARCH WIRELESS, INC.
    Inventors: Sai Deepika Regani, Beibei Wang, Min Wu, K. J. Ray Liu, Oscar Chi-Lim Au
  • Patent number: 11940550
    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: Grant
    Filed: June 20, 2021
    Date of Patent: March 26, 2024
    Assignee: ORIGIN WIRELESS, INC.
    Inventors: Chao-Lun Mai, Dan Bugos, Hung-Quoc Duc Lai, Spencer Maid, Beibei Wang, Oscar Chi-Lim Au, K. J. Ray Liu
  • Patent number: 11928894
    Abstract: Methods, apparatus and systems for wireless gait recognition and rhythmic motion monitoring are described. In one example, a described system comprises: a transmitter, a receiver, and a processor. The transmitter is configured for transmitting a first wireless signal towards an object in a venue through a wireless multipath channel of the venue. The receiver is configured for: receiving a second wireless signal 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 which is impacted by a rhythmic motion of the object. The processor is configured for: obtaining a time series of channel information (CI) of the wireless multipath channel based on the second wireless signal, monitoring the rhythmic motion of the object based on the time series of CI (TSCI), and triggering a response action based on a result of the monitoring.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: March 12, 2024
    Assignee: ORIGIN WIRELESS, INC.
    Inventors: Chenshu Wu, Feng Zhang, Beibei Wang, Yuqian Hu, K. J. Ray Liu, Oscar Chi-Lim Au
  • Publication number: 20240064691
    Abstract: Methods, apparatus and systems for wireless sensing and proximity detection are described. For example, a described method comprises: transmitting, by a first wireless device, a wireless signal through a wireless multipath channel in a venue; receiving, by a second wireless device, 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 a movement of an object in the venue; obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the received wireless signal; computing a first motion statistics based on a time-domain correlation of channel information (CI) in the TSCI; computing a second motion statistics based on a frequency-domain correlation of the CI in the TSCI; and detecting a proximity of the object to a target in the venue based on the first motion statistics and the second motion statistics.
    Type: Application
    Filed: October 12, 2023
    Publication date: February 22, 2024
    Inventors: Yuqian Hu, Guozhen Zhu, Beibei Wang, K. J. Ray Liu, Oscar Chi-Lim Au
  • Patent number: 11906659
    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: Grant
    Filed: June 18, 2021
    Date of Patent: February 20, 2024
    Assignee: ORIGIN WIRELESS, INC.
    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: 20230380770
    Abstract: Blood pressure measurement through the use of a sensor array system capable of tracking displacement, motion, environmental impact, and other electrical signals, and recalibration based on said tracking. The sensor array system may comprise a plurality of sensors, and each sensor may be capable of measuring one or more parameters. The system may further comprise an electronic board communicatively coupled to the sensor array. The electronic board may be capable of transmitting a plurality of parameter measurements from the sensor array to a computing device capable of detecting changes to the sensor array based on the plurality of parameter measurements. The changes to the sensor array may be detected by measuring an increased parameter reading from at least a first sensor and a decreased parameter reading from at least a second sensor compared to a baseline measurement.
    Type: Application
    Filed: August 9, 2023
    Publication date: November 30, 2023
    Inventors: Ray Liu, Joshua Kim, Eugene Lee, Huy Eng Lim, Akhil Chaudhari
  • Publication number: 20230388840
    Abstract: 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.
    Type: Application
    Filed: May 21, 2023
    Publication date: November 30, 2023
    Inventors: Oscar Chi-Lim Au, Beibei Wang, K. J. Ray Liu, Hung-Quoc Duc Lai
  • Publication number: 20230333201
    Abstract: Methods, apparatus and systems for correlation-based wireless monitoring are described. For example, a described method comprises: detecting and monitoring motion of a first object in a first sensing task based on a first motion information (MI) computed based on a first time series of channel information (TSCI) associated with a first device pair; detecting and monitoring motion of a second object in a second sensing task based on a second MI computed based on a second TSCI associated with a second device pair; computing a correlation score based at least partially on: the first TSCI, the second TSCI, the first MI and the second MI; detecting the first object and the second object as a same object when the correlation score is greater than a first threshold; and detecting the first object and the second object as two different objects when the correlation score is less than a second threshold.
    Type: Application
    Filed: June 19, 2023
    Publication date: October 19, 2023
    Inventors: Sai Deepika Regani, Yuqian Hu, Beibei Wang, K.J. Ray Liu, Oscar Chi-Lim Au
  • Patent number: 11771366
    Abstract: Methods, apparatus and systems for radio-based sleep tracking are described. In one example, a described system comprises: a transmitter configured to transmit a first wireless signal through a wireless multipath channel in a venue; a receiver configured to receive a second wireless signal through the wireless multipath channel, wherein the second wireless signal differs from the first wireless signal due to the wireless multipath channel which is impacted by a sleeping motion of an object in the venue; and a processor.
    Type: Grant
    Filed: August 15, 2022
    Date of Patent: October 3, 2023
    Assignee: ORIGIN WIRELESS, INC.
    Inventors: Chenshu Wu, Beibei Wang, Oscar Chi-Lim Au, Hung-Quoc Duc Lai, K. J. Ray Liu
  • Patent number: 11770197
    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: Grant
    Filed: December 5, 2020
    Date of Patent: September 26, 2023
    Assignee: ORIGIN WIRELESS, INC.
    Inventors: Feng Zhang, Beibei Wang, Hung-Quoc Duc Lai, Oscar Chi-Lim Au, K. J. Ray Liu, Yexin Cao
  • Publication number: 20230273291
    Abstract: Methods, apparatus and systems for wireless monitoring with improved accuracy are described. In one 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, wherein the received wireless signal differs from the transmitted wireless signal due to the wireless multipath channel and the motion; obtaining a time series of channel information (TSCI) of the wireless multipath channel based on the received wireless signal; performing a classification of a sliding time window by analyzing channel information (CI) of the TSCI in the sliding time window; computing a motion information (MI) for the sliding time window based on the TSCI and the classification of the sliding time window; and monitoring the motion of the object based on the MI.
    Type: Application
    Filed: May 8, 2023
    Publication date: August 31, 2023
    Inventors: Muhammed Zahid Ozturk, Sai Deepika Regani, Beibei Wang, K.J. Ray Liu, Hung-Quoc Duc Lai, Yi Han, Oscar Chi-Lim Au
  • Publication number: 20230188384
    Abstract: Methods, apparatus and systems for wireless sensing using multiple groups of wireless devices are described. In one example, a described system comprises: heterogeneous wireless devices in a venue, and a processor. A particular device is configured to communicate with a first device through a first wireless channel based on a first protocol using a first radio, and configured to communicate with a second device through a second wireless channel based on a second protocol using a second radio. The processor is configured for: obtaining a time series of channel information (TSCI) of the second wireless channel based on a wireless signal communicated between the particular device and the second device; computing a pairwise sensing analytics based on the TSCI; and computing a combined sensing analytics based on the pairwise sensing analytics. The particular device transmits the combined sensing analytics to the first device, to perform a wireless sensing task.
    Type: Application
    Filed: February 10, 2023
    Publication date: June 15, 2023
    Inventors: David N. Claffey, Hung-Quoc Duc Lai, Linghe Wang, Chun-I Chen, Chun-Chia Jack Shih, Beibei Wang, Oscar Chi-Lim Au, K. J. Ray Liu
  • Patent number: D989651
    Type: Grant
    Filed: December 5, 2020
    Date of Patent: June 20, 2023
    Assignee: ORIGIN WIRELESS, INC.
    Inventors: Chao-Lun Mai, Wang Yin Chen, Beibei Wang, Oscar Chi-Lim Au, K. J. Ray Liu
  • Patent number: D997162
    Type: Grant
    Filed: December 5, 2020
    Date of Patent: August 29, 2023
    Assignee: ORIGIN WIRELESS, INC.
    Inventors: Chao-Lun Mai, Wang Yin Chen, Beibei Wang, Oscar Chi-Lim Au, K. J. Ray Liu