Patents by Inventor Yanzi Xu

Yanzi Xu 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: 11665020
    Abstract: Various embodiments relate to detecting collisions on a communication network. A method may include transmitting a first signal to a shared bus. The method may also include observing a second signal at the shared bus during the transmitting. Further, the method may include detecting a collision on the shared bus in response to an amplitude of the second signal being one of greater than a first threshold and less than a second threshold.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: May 30, 2023
    Assignee: Microchip Technology Incorporated
    Inventors: John Junling Zang, Dixon Chen, Yanzi Xu, Henry Liang
  • Publication number: 20230092814
    Abstract: On or more examples relate, generally, to an apparatus that includes a reconciliation sublayer of a physical layer, a reduced media independent interface (RMII) of the physical layer, and a logic circuit. Such a logic circuit may operate to receive a changed carrier sense signal provided by the reconciliation sublayer, generate a further changed carrier sense signal at least partially responsive to a prediction that the changed carrier sense signal would cause unintended signaling at the RMII, and provide the further changed carrier sense signal to the RMII.
    Type: Application
    Filed: November 9, 2022
    Publication date: March 23, 2023
    Inventors: Dixon Chen, John Junling Zang, Yanzi Xu, Venkatraman Iyer
  • Patent number: 11516855
    Abstract: Disclosed are systems and devices for interfacing media access tuning circuitry that implements collision handling or traffic shaping with a reduced media independent interface (RMII). In some embodiments, an interface circuitry manages emulated signals generated by a media access tuning circuitry in response to detecting that the emulated signals would cause incorrect operation of an RMII. Also disclosed is a physical layer (PHY) device for a multidrop network. In some embodiments the PHY device implements physical layer collision techniques and operable to communicate with a media access control (MAC) device via an RMII, where the MAC is configured for carrier-sense multiple access (CSMA), CSMA with collision detection (CSMA/CD), or CSMA with collision avoidance (CSMA/CA). Also disclosed are processes for managing signaling at a PHY that implements physical layer collision avoidance (PLCA) or traffic shaping, as the case may be.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: November 29, 2022
    Assignee: Microchip Technology Incorporated
    Inventors: Dixon Chen, John Junling Zang, Yanzi Xu, Venkatraman Iyer
  • Publication number: 20220045773
    Abstract: Various embodiments relate to detecting a cable fault within a network. A method may include transmitting a pulse signal to a cable of a shared bus from a node, and observing a signal received at the node in response to the pulse signal. The method may also include determining a fault condition of the cable based on the pulse signal and on an amplitude of each sample of a number of samples of the one or more observed signals.
    Type: Application
    Filed: September 14, 2021
    Publication date: February 10, 2022
    Inventors: John Junling Zang, Dixon Chen, Hongming An, Jiachi Yu, Kevin Yang, Yanzi Xu, Henry Liang
  • Patent number: 11121782
    Abstract: Various embodiments relate to detecting a cable fault within a 10SPE network. A method may include transmitting a pulse signal to a cable of a shared bus from a node, and observing a signal received at the node in response to the pulse signal. The method may also include determining a fault condition of the cable based on the pulse signal and on an amplitude of each sample of a number of samples of the one or more observed signals.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: September 14, 2021
    Assignee: Microchip Technology Incorporated
    Inventors: John Junling Zang, Dixon Chen, Hongming An, Jiachi Yu, Kevin Yang, Yanzi Xu, Henry Liang
  • Publication number: 20210058168
    Abstract: Various embodiments relate to detecting a cable fault within a 10SPE network. A method may include transmitting a pulse signal to a cable of a shared bus from a node, and observing a signal received at the node in response to the pulse signal. The method may also include determining a fault condition of the cable based on the pulse signal and on an amplitude of each sample of a number of samples of the one or more observed signals.
    Type: Application
    Filed: September 30, 2019
    Publication date: February 25, 2021
    Inventors: John Junling Zang, Dixon Chen, Hongming An, Jiachi Yu, Kevin Yang, Yanzi Xu, Henry Liang
  • Publication number: 20210058269
    Abstract: Various embodiments relate to detecting collisions on a communication network. A method may include transmitting a first signal to a shared bus. The method may also include observing a second signal at the shared bus during the transmitting. Further, the method may include detecting a collision on the shared bus in response to an amplitude of the second signal being one of greater than a first threshold and less than a second threshold.
    Type: Application
    Filed: September 30, 2019
    Publication date: February 25, 2021
    Inventors: John Junling Zang, Dixon Chen, Yanzi Xu, Henry Liang
  • Publication number: 20210058965
    Abstract: Disclosed are systems and devices for interfacing media access tuning circuitry that implements collision handling or traffic shaping with a reduced media independent interface (RMII). In some embodiments, an interface circuitry manages emulated signals generated by a media access tuning circuitry in response to detecting that the emulated signals would cause incorrect operation of an RMII. Also disclosed is a physical layer (PHY) device for a multidrop network. In some embodiments the PHY device implements physical layer collision techniques and operable to communicate with a media access control (MAC) device via an RMII, where the MAC is configured for carrier-sense multiple access (CSMA), CSMA with collision detection (CSMA/CD), or CSMA with collision avoidance (CSMA/CA). Also disclosed are processes for managing signaling at a PHY that implements physical layer collision avoidance (PLCA) or traffic shaping, as the case may be.
    Type: Application
    Filed: September 30, 2019
    Publication date: February 25, 2021
    Inventors: Dixon Chen, John Junling Zang, Yanzi Xu, Venkat Iyer