Patents by Inventor Robert Liang

Robert Liang 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: 20260106644
    Abstract: A storage medium stores instructions that, when executed by a processor, instruct the processor to receive, via a transceiver, a first frame from a wireless device and determine a reception time stamp of the first frame. The instructions include instructions to determine a first timing position of the wireless device within a hopping sequence; and after receiving the first frame, instruct an electronic device comprising the non-transitory computer readable storage medium to transition to a low power mode. The instructions include instructions to after the electronic device transitions to the low power mode, instruct the electronic device to transition to an active mode and after the electronic device transitions to the active mode, determine a listening channel of the wireless device based on the hopping sequence, the reception time stamp, and the first timing position, and to transmit, via the transceiver, a second frame in the listening channel.
    Type: Application
    Filed: December 12, 2025
    Publication date: April 16, 2026
    Inventors: KUMARAN VIJAYASANKAR, ROBERT LIANG, JYOTHSNA KUNDURU, KWANG SEOP EOM
  • Patent number: 12526008
    Abstract: A radio communications device includes a RTC configured to run even during sleep for receiving from a coordinator node (CN) in an asynchronous channel hopping WPAN an asynchronous hopping sequence (AHS) frame that includes the CN's hopping sequence. A processor implements a stored sleepy device operation in asynchronous channel hopping networks algorithm. The algorithm is for determining a time stamp for the AHS frame and the CN's initial timing position within the hopping sequence, storing the time stamp, going to sleep and upon waking up changing a frequency band of its receive (Rx) channel to an updated fixed channel. A data request command frame is transmitted by the device on the CN's listening channel that is calculated from the CN's hopping sequence, time stamp, CN's initial timing position and current time, and the device receives an ACK frame transmitted by the CN at the updated fixed channel of Rx operation.
    Type: Grant
    Filed: April 26, 2024
    Date of Patent: January 13, 2026
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Kumaran Vijayasankar, Robert Liang, Jyothsna Kunduru, Kwang Seop Eom
  • Patent number: 12526944
    Abstract: Housings for electronic devices may include a steel body, such as a stainless steel body, that has an outer portion and an inner portion. The outer portion may exhibit an average Vickers hardness of 200 HV or higher. The inner portion may exhibit an average Vickers hardness of 180 HV or lower. The lower hardness of the inner portion may facilitate working the material of the inner portion, such as to form attachment points, protrusions, holes, or other features. Various additional devices, methods, and systems are also disclosed.
    Type: Grant
    Filed: January 9, 2023
    Date of Patent: January 13, 2026
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Zhicong Yao, Luke Murphy, Robert Liang, Eric Santini
  • Patent number: 12384408
    Abstract: The disclosed technology provides solutions for applying a flare detection model to an image for detecting road flares in an environment by an autonomous vehicle (AV). A method comprises accessing a flare detection model that is trained to recognize a bounded outer region and a bounded inner region; and detect a flare object within the bounded inner region and refrain from detecting an object in the bounded outer region; applying the flare detection model to an image of the environment to recognize an outer region corresponding to a glow of a flare and an inner region that corresponds to the flare in the environment; and detecting the flare in the environment within the inner region based on the inner region being recognized by the flare detection model and contained within the outer region that is also recognized by the flare detection model. Systems and machine-readable media are also provided.
    Type: Grant
    Filed: February 28, 2023
    Date of Patent: August 12, 2025
    Assignee: GM CRUISE HOLDINGS LLC
    Inventors: Pranay Agrawal, Ashish Shrivastava, Robert Liang, Changkai Zhou
  • Publication number: 20250126072
    Abstract: Systems, methods, and computer program products provide for time critical packet transmission. An electronic device may include a transceiver and a processor that is configured to receive or transmit, via the transceiver, a plurality of packets having respective headers conforming to a layer below a network layer, and the first header of a first packet of the plurality of packets may include a source address and a hop limit field. The packet may be transmitted according to the layer below the network layer, thereby providing a smaller packet.
    Type: Application
    Filed: October 2, 2024
    Publication date: April 17, 2025
    Inventors: Liangcheng Tao, Robert Liang, Kumaran Vijayasankar
  • Publication number: 20240286636
    Abstract: The disclosed technology provides solutions for applying a flare detection model to an image for detecting road flares in an environment by an autonomous vehicle (AV). A method comprises accessing a flare detection model that is trained to recognize a bounded outer region and a bounded inner region; and detect a flare object within the bounded inner region and refrain from detecting an object in the bounded outer region; applying the flare detection model to an image of the environment to recognize an outer region corresponding to a glow of a flare and an inner region that corresponds to the flare in the environment; and detecting the flare in the environment within the inner region based on the inner region being recognized by the flare detection model and contained within the outer region that is also recognized by the flare detection model. Systems and machine-readable media are also provided.
    Type: Application
    Filed: February 28, 2023
    Publication date: August 29, 2024
    Inventors: Pranay Agrawal, Ashish Shrivastava, Robert Liang, Changkai Zhou
  • Publication number: 20240275428
    Abstract: A radio communications device includes a RTC configured to run even during sleep for receiving from a coordinator node (CN) in an asynchronous channel hopping WPAN an asynchronous hopping sequence (AHS) frame that includes the CN's hopping sequence. A processor implements a stored sleepy device operation in asynchronous channel hopping networks algorithm. The algorithm is for determining a time stamp for the AHS frame and the CN's initial timing position within the hopping sequence, storing the time stamp, going to sleep and upon waking up changing a frequency band of its receive (Rx) channel to an updated fixed channel. A data request command frame is transmitted by the device on the CN's listening channel that is calculated from the CN's hopping sequence, time stamp, CN's initial timing position and current time, and the device receives an ACK frame transmitted by the CN at the updated fixed channel of Rx operation.
    Type: Application
    Filed: April 26, 2024
    Publication date: August 15, 2024
    Inventors: KUMARAN VIJAYASANKAR, ROBERT LIANG, JYOTHSNA KUNDURU, KWANG SEOP EOM
  • Patent number: 12003271
    Abstract: A radio communications device includes a RTC configured to run even during sleep for receiving from a coordinator node (CN) in an asynchronous channel hopping WPAN an asynchronous hopping sequence (AHS) frame that includes the CN's hopping sequence. A processor implements a stored sleepy device operation in asynchronous channel hopping networks algorithm. The algorithm is for determining a time stamp for the AHS frame and the CN's initial timing position within the hopping sequence, storing the time stamp, going to sleep and upon waking up changing a frequency band of its receive (Rx) channel to an updated fixed channel. A data request command frame is transmitted by the device on the CN's listening channel that is calculated from the CN's hopping sequence, time stamp, CN's initial timing position and current time, and the device receives an ACK frame transmitted by the CN at the updated fixed channel of Rx operation.
    Type: Grant
    Filed: March 17, 2023
    Date of Patent: June 4, 2024
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Kumaran Vijayasankar, Robert Liang, Jyothsna Kunduru, Kwang Seop Eom
  • Publication number: 20230262913
    Abstract: Housings for electronic devices may include a steel body, such as a stainless steel body, that has an outer portion and an inner portion. The outer portion may exhibit an average Vickers hardness of 200 HV or higher. The inner portion may exhibit an average Vickers hardness of 180 HV or lower. The lower hardness of the inner portion may facilitate working the material of the inner portion, such as to form attachment points, protrusions, holes, or other features. Various additional devices, methods, and systems are also disclosed.
    Type: Application
    Filed: January 9, 2023
    Publication date: August 17, 2023
    Inventors: Zhicong Yao, Luke Murphy, Robert Liang, Eric Santini
  • Publication number: 20230223986
    Abstract: A radio communications device includes a RTC configured to run even during sleep for receiving from a coordinator node (CN) in an asynchronous channel hopping WPAN an asynchronous hopping sequence (AHS) frame that includes the CN's hopping sequence. A processor implements a stored sleepy device operation in asynchronous channel hopping networks algorithm. The algorithm is for determining a time stamp for the AHS frame and the CN's initial timing position within the hopping sequence, storing the time stamp, going to sleep and upon waking up changing a frequency band of its receive (Rx) channel to an updated fixed channel. A data request command frame is transmitted by the device on the CN's listening channel that is calculated from the CN's hopping sequence, time stamp, CN's initial timing position and current time, and the device receives an ACK frame transmitted by the CN at the updated fixed channel of Rx operation.
    Type: Application
    Filed: March 17, 2023
    Publication date: July 13, 2023
    Inventors: KUMARAN VIJAYASANKAR, ROBERT LIANG, JYOTHSNA KUNDURU, KWANG SEOP EOM
  • Patent number: 11696364
    Abstract: Disclosed embodiments include a network device having a split network stack that includes a physical (PHY) layer associated with first and second media access control (MAC) protocol sublayers, a processing device, and memory storing instructions that, when executed by the processing device, cause the processing device to select a route through the split network stack that includes one of the first and second MAC protocol sublayers but not the other one of the first and second MAC protocol sublayers.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: July 4, 2023
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Xiaolin Lu, Robert Liang, Mehul Soman, Kumaran Vijayasankar, Ramanuja Vedantham
  • Patent number: 11637585
    Abstract: A radio communications device includes a RTC configured to run even during sleep for receiving from a coordinator node (CN) in an asynchronous channel hopping WPAN an asynchronous hopping sequence (AHS) frame that includes the CN's hopping sequence. A processor implements a stored sleepy device operation in asynchronous channel hopping networks algorithm. The algorithm is for determining a time stamp for the AHS frame and the CN's initial timing position within the hopping sequence, storing the time stamp, going to sleep and upon waking up changing a frequency band of its receive (Rx) channel to an updated fixed channel. A data request command frame is transmitted by the device on the CN's listening channel that is calculated from the CN's hopping sequence, time stamp, CN's initial timing position and current time, and the device receives an ACK frame transmitted by the CN at the updated fixed channel of Rx operation.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: April 25, 2023
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Kumaran Vijayasankar, Robert Liang, Jyothsna Kunduru, Kwang Seop Eom
  • Publication number: 20210320687
    Abstract: A radio communications device includes a RTC configured to run even during sleep for receiving from a coordinator node (CN) in an asynchronous channel hopping WPAN an asynchronous hopping sequence (AHS) frame that includes the CN's hopping sequence. A processor implements a stored sleepy device operation in asynchronous channel hopping networks algorithm. The algorithm is for determining a time stamp for the AHS frame and the CN's initial timing position within the hopping sequence, storing the time stamp, going to sleep and upon waking up changing a frequency band of its receive (Rx) channel to an updated fixed channel. A data request command frame is transmitted by the device on the CN's listening channel that is calculated from the CN's hopping sequence, time stamp, CN's initial timing position and current time, and the device receives an ACK frame transmitted by the CN at the updated fixed channel of Rx operation.
    Type: Application
    Filed: June 24, 2021
    Publication date: October 14, 2021
    Inventors: KUMARAN VIJAYASANKAR, ROBERT LIANG, JYOTHSNA KUNDURU, KWANG SEOP EOM
  • Publication number: 20210274593
    Abstract: Disclosed embodiments include a network device having a split network stack that includes a physical (PHY) layer associated with first and second media access control (MAC) protocol sublayers, a processing device, and memory storing instructions that, when executed by the processing device, cause the processing device to select a route through the split network stack that includes one of the first and second MAC protocol sublayers but not the other one of the first and second MAC protocol sublayers.
    Type: Application
    Filed: May 18, 2021
    Publication date: September 2, 2021
    Inventors: Xiaolin Lu, Robert Liang, Mehul Soman, Kumaran Vijayasankar, Ramanuja Vedantham
  • Patent number: 11082086
    Abstract: A radio communications device includes a RTC configured to run even during sleep for receiving from a coordinator node (CN) in an asynchronous channel hopping WPAN an asynchronous hopping sequence (AHS) frame that includes the CN's hopping sequence. A processor implements a stored sleepy device operation in asynchronous channel hopping networks algorithm. The algorithm is for determining a time stamp for the AHS frame and the CN's initial timing position within the hopping sequence, storing the time stamp, going to sleep and upon waking up changing a frequency band of its receive (Rx) channel to an updated fixed channel. A data request command frame is transmitted by the device on the CN's listening channel that is calculated from the CN's hopping sequence, time stamp, CN's initial timing position and current time, and the device receives an ACK frame transmitted by the CN at the updated fixed channel of Rx operation.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: August 3, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Kumaran Vijayasankar, Robert Liang, Jyothsna Kunduru, Kwang Seop Eom
  • Patent number: 11013060
    Abstract: Disclosed embodiments include a network device having a split network stack that includes a physical (PHY) layer associated with first and second media access control (MAC) protocol sublayers, a processing device, and memory storing instructions that, when executed by the processing device, cause the processing device to select a route through the split network stack that includes one of the first and second MAC protocol sublayers but not the other one of the first and second MAC protocol sublayers.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: May 18, 2021
    Assignee: Texas Instruments Incorporated
    Inventors: Xiaolin Lu, Robert Liang, Mehul Soman, Kumaran Vijayasankar, Ramanuja Vedantham
  • Publication number: 20200014422
    Abstract: A radio communications device includes a RTC configured to run even during sleep for receiving from a coordinator node (CN) in an asynchronous channel hopping WPAN an asynchronous hopping sequence (AHS) frame that includes the CN's hopping sequence. A processor implements a stored sleepy device operation in asynchronous channel hopping networks algorithm. The algorithm is for determining a time stamp for the AHS frame and the CN's initial timing position within the hopping sequence, storing the time stamp, going to sleep and upon waking up changing a frequency band of its receive (Rx) channel to an updated fixed channel. A data request command frame is transmitted by the device on the CN's listening channel that is calculated from the CN's hopping sequence, time stamp, CN's initial timing position and current time, and the device receives an ACK frame transmitted by the CN at the updated fixed channel of Rx operation.
    Type: Application
    Filed: September 19, 2019
    Publication date: January 9, 2020
    Inventors: Kumaran Vijayasankar, Robert Liang, Jyothsna Kunduru, Kwang Seop Eom
  • Patent number: 10491265
    Abstract: A radio communications device includes a RTC configured to run even during sleep for receiving from a coordinator node (CN) in an asynchronous channel hopping WPAN an asynchronous hopping sequence (AHS) frame that includes the CN's hopping sequence. A processor implements a stored sleepy device operation in asynchronous channel hopping networks algorithm. The algorithm is for determining a time stamp for the AHS frame and the CN's initial timing position within the hopping sequence, storing the time stamp, going to sleep and upon waking up changing a frequency band of its receive (Rx) channel to an updated fixed channel. A data request command frame is transmitted by the device on the CN's listening channel that is calculated from the CN's hopping sequence, time stamp, CN's initial timing position and current time, and the device receives an ACK frame transmitted by the CN at the updated fixed channel of Rx operation.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: November 26, 2019
    Assignee: Texas Instruments Incorporated
    Inventors: Kumaran Vijayasankar, Robert Liang, Jyothsna Kunduru, Kwang Seop Eom
  • Publication number: 20190052716
    Abstract: Disclosed embodiments include a network device having a split network stack that includes a physical (PHY) layer associated with first and second media access control (MAC) protocol sublayers, a processing device, and memory storing instructions that, when executed by the processing device, cause the processing device to select a route through the split network stack that includes one of the first and second MAC protocol sublayers but not the other one of the first and second MAC protocol sublayers.
    Type: Application
    Filed: October 12, 2018
    Publication date: February 14, 2019
    Inventors: Xiaolin Lu, Robert Liang, Mehul Soman, Kumaran Vijayasankar, Ramanuja Vedantham
  • Patent number: 10104192
    Abstract: A communication system and method includes receiving payload data of first and second media access control (MAC) frames. A MAC-level protocol is identified in response to the indication of the selected network for each of the first and second MAC frames. The payload data of the first and second MAC frames is transmitted and/or received across respective networks transmitted using, for example, power line communications signals over a common communications medium. The common communications medium is operable for carrying signals of a plurality of networks.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: October 16, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Xiaolin Lu, Robert Liang, Mehul Soman, Kumaran Vijayasankar, Ramanuja Vedantham