Patents by Inventor Zhijian Sun

Zhijian Sun 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: 11038898
    Abstract: A Slow Protocol packet processing method includes receiving, by a network device, a first Slow Protocol packet, determining, based on port information of a port of the network device receiving the first Slow Protocol packet, that a negotiation process is already completed between the network device and the transmit end device, querying, based on device information of the transmit end device carried in the first Slow Protocol packet, whether a device information base stored by the network device in the negotiation process includes the device information of the transmit end device, and identifying the first Slow Protocol packet as a valid packet in response to a result that the device information base includes the device information of the transmit end device.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: June 15, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Hui Zhao, Feng Qian, Wenhui Li, Zhijian Sun
  • Publication number: 20210175970
    Abstract: Systems and methods for reducing the variation in the power of optical signals transmitted in an upstream direction, at the inputs of an active combiner in an RFoG CATV architecture preferably configured to reduce optical beat interference, so as to increase the dynamic range of a laser in the active combiner.
    Type: Application
    Filed: December 10, 2020
    Publication date: June 10, 2021
    Inventors: Zoran Maricevic, Brent D. Arnold, Zhijian Sun, Benny S. Lewandowski
  • Publication number: 20210160045
    Abstract: In some embodiments, a digital clock management system includes input signal conversion circuitry, logic circuitry and output signal conversion circuitry. The input signal conversion circuitry converts input signals to corresponding first digital data streams, each of which contains digital data synchronized to a first data clock. First digital logic circuitry converts the first digital data streams to second digital data streams, each of which contains digital data synchronized to the first data clock, and converts the second digital data streams to third digital data streams, each of which contains digital data synchronized to a common clock. Second digital logic circuitry converts the third digital data streams to a single digital data stream. The output signal conversion circuitry converts the single digital data stream to a modulated output signal.
    Type: Application
    Filed: November 25, 2020
    Publication date: May 27, 2021
    Inventors: Zhijian Sun, Dean Painchaud, Zoran Maricevic
  • Publication number: 20210101953
    Abstract: A fusion protein, which is characterized in that the fusion protein is composed by interleukin-2 (IL-2) being fused with and linked to an anti-human epithelial cell adhesion molecule (EpCAM) single-chain antibody. Further provided by the present solution is a use of the fusion protein in the preparation of a drug for treating tumors.
    Type: Application
    Filed: October 7, 2020
    Publication date: April 8, 2021
    Inventors: Zhijian SUN, Ping KANG, Minghao ZHANG
  • Patent number: 10955635
    Abstract: A HFC network includes an optical node, a first fiber optic cable, and a second fiber optic cable. The first fiber optic cable has a first end that is connected to the optical node for delivering signals to the optical node. The second fiber optic cable has a first end that is positioned within the optical node. Optical fibers of the first optic cable are ribbonized and spliced to ribbonized optical fibers of the second fiber optic cable at a spliced connection such that signals can be transmitted between the fiber optic cables. An optical fiber of the first fiber optic cable is spliced to a connectorized fiber pigtail at a spliced connection, and the connectorized fiber pigtail is optically connected to a broadband optical transceiver in the optical node. The spliced connections are stored in a fiber splice tray within the optical node.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: March 23, 2021
    Assignee: ARRIS Enterprises LLC
    Inventors: Zoran Maricevic, John O. Caezza, Scott Kahoun, Scott T. Ishler, Kevin P. Orazietti, Zhijian Sun, Roy A. Harbert, Brian Solomon
  • Patent number: 10860077
    Abstract: In one embodiment, a computing device detects a module that is inserted into a first slot. The computing device includes a first slot to operate with a first type of module and a second slot to operate with a second type of module. The first slot and the second slot include a same pin position for receiving a power supply pin from the first type of module and the second type of module. The module is communicated with to determine whether the module is the first type of module or the second type of module. The first type of module receives a first type of signal that is combined with a second type of signal from the second type of module. The computing device adjusts a power supply voltage to the power supply pin of the first slot from a first value to a second value when the first type of module is detected.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: December 8, 2020
    Assignee: ARRIS Enterprises LLC
    Inventors: Zhijian Sun, Brent Arnold, Zoran Maricevic
  • Publication number: 20200304520
    Abstract: A Slow Protocol packet processing method includes receiving, by a network device, a first Slow Protocol packet, determining, based on port information of a port of the network device receiving the first Slow Protocol packet, that a negotiation process is already completed between the network device and the transmit end device, querying, based on device information of the transmit end device carried in the first Slow Protocol packet, whether a device information base stored by the network device in the negotiation process includes the device information of the transmit end device, and identifying the first Slow Protocol packet as a valid packet in response to a result that the device information base includes the device information of the transmit end device.
    Type: Application
    Filed: June 11, 2020
    Publication date: September 24, 2020
    Inventors: Hui Zhao, Feng Qian, Wenhui Li, Zhijian Sun
  • Patent number: 10728260
    Abstract: A Slow Protocol packet processing method and a related apparatus, where the method includes receiving, by a network device, a first Slow Protocol packet, determining, based on port information of a port of the network device receiving the first Slow Protocol packet, that a negotiation process is already completed between the network device and the transmit end device, querying, based on device information of the transmit end device carried in the first Slow Protocol packet, whether a device information base stored by the network device in the negotiation process includes the device information of the transmit end device, and identifying the first Slow Protocol packet as a valid packet in response to a result that the device information base includes the device information of the transmit end device.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: July 28, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Hui Zhao, Feng Qian, Wenhui Li, Zhijian Sun
  • Patent number: 10651958
    Abstract: In one embodiment, an apparatus includes a bi-directional coupler for coupling an upstream signal and a downstream signal to a termination load. A test point detection mechanism is configured to detect when a test point device is inserted in a test point connector. The test point device is configured to perform a test of the upstream signal or the downstream signal. A switch is configured to switch from being coupled to the termination load to being coupled to the test point device when the test point device is detected as being inserted in the test point connector. The switch is configured to switch from being coupled to being coupled to the test point device to the termination load when the test point device is detected as being removed from being inserted in the test point connector.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: May 12, 2020
    Assignee: ARRIS Enterprises LLC
    Inventors: Zhijian Sun, Eric J. Cormier
  • Publication number: 20200127743
    Abstract: In one embodiment, an apparatus includes a bi-directional coupler for coupling an upstream signal and a downstream signal to a termination load. A test point detection mechanism is configured to detect when a test point device is inserted in a test point connector. The test point device is configured to perform a test of the upstream signal or the downstream signal. A switch is configured to switch from being coupled to the termination load to being coupled to the test point device when the test point device is detected as being inserted in the test point connector. The switch is configured to switch from being coupled to being coupled to the test point device to the termination load when the test point device is detected as being removed from being inserted in the test point connector.
    Type: Application
    Filed: October 17, 2018
    Publication date: April 23, 2020
    Inventors: Zhijian Sun, Eric J. Cormier
  • Publication number: 20200125153
    Abstract: In one embodiment, a computing device detects a module that is inserted into a first slot. The computing device includes a first slot to operate with a first type of module and a second slot to operate with a second type of module. The first slot and the second slot include a same pin position for receiving a power supply pin from the first type of module and the second type of module. The module is communicated with to determine whether the module is the first type of module or the second type of module. The first type of module receives a first type of signal that is combined with a second type of signal from the second type of module. The computing device adjusts a power supply voltage to the power supply pin of the first slot from a first value to a second value when the first type of module is detected.
    Type: Application
    Filed: October 17, 2018
    Publication date: April 23, 2020
    Inventors: Zhijian Sun, Brent Arnold, Zoran Maricevic
  • Publication number: 20200081215
    Abstract: A HFC network includes an optical node, a first fiber optic cable, and a second fiber optic cable. The first fiber optic cable has a first end that is connected to the optical node for delivering signals to the optical node. The second fiber optic cable has a first end that is positioned within the optical node. Optical fibers of the first optic cable are ribbonized and spliced to ribbonized optical fibers of the second fiber optic cable at a spliced connection such that signals can be transmitted between the fiber optic cables. An optical fiber of the first fiber optic cable is spliced to a connectorized fiber pigtail at a spliced connection, and the connectorized fiber pigtail is optically connected to a broadband optical transceiver in the optical node. The spliced connections are stored in a fiber splice tray within the optical node.
    Type: Application
    Filed: September 10, 2018
    Publication date: March 12, 2020
    Inventors: Zoran Maricevic, John O. Caezza, Scott Kahoun, Scott T. Ishler, Kevin P. Orazietti, Zhijian Sun, Roy A. Harbert, Brian Solomon
  • Publication number: 20190222584
    Abstract: A Slow Protocol packet processing method and a related apparatus, where the method includes receiving, by a network device, a first Slow Protocol packet, determining, based on port information of a port of the network device receiving the first Slow Protocol packet, that a negotiation process is already completed between the network device and the transmit end device, querying, based on device information of the transmit end device carried in the first Slow Protocol packet, whether a device information base stored by the network device in the negotiation process includes the device information of the transmit end device, and identifying the first Slow Protocol packet as a valid packet in response to a result that the device information base includes the device information of the transmit end device.
    Type: Application
    Filed: March 21, 2019
    Publication date: July 18, 2019
    Inventors: Hui Zhao, Feng Qian, Wenhui Li, Zhijian Sun
  • Publication number: 20190170752
    Abstract: Disclosed is a method for predicting clinical response of a cancer patient to treatment with an immune checkpoint inhibitor, or a combination of two or more thereof, or with a combination of an immune checkpoint inhibitor and other antitumor drugs, by introducing bispecific T cell engager (BiTE) into the platform of lymphocytes containing T cells in vitro, which are cultured on feeder cells or in Matrigel®.
    Type: Application
    Filed: July 31, 2017
    Publication date: June 6, 2019
    Applicant: BeiGene, Ltd.
    Inventors: Lusong Luo, Chengliang Dai, Zhijian Sun
  • Patent number: 10263702
    Abstract: Systems and methods for relaying upstream signals received from a plurality of subscribers to a remote head end. Preferably, the systems and methods use a switch that selectively opens when upstream RF signals are not present and closes when upstream RF signals are present, in a manner that reduces noise.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: April 16, 2019
    Assignee: ARRIS Enterprises LLC
    Inventors: Marcel F. Schemmann, Venkatesh G. Mutalik, Zhijian Sun, Zoran Maricevic
  • Patent number: 10218318
    Abstract: Systems and methods that cancel distortion in the amplified outputs of a node by equalizing the distortion characteristics amplifiers in the node, so as to improve the effectiveness of predistortion applied to a downstream signal amplified by the node.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: February 26, 2019
    Assignee: ARRIS Enterprises LLC
    Inventors: Marcel F. Schemmann, Zhijian Sun
  • Publication number: 20190028068
    Abstract: Systems and methods that cancel distortion in the amplified outputs of a node by equalizing the distortion characteristics amplifiers in the node, so as to improve the effectiveness of predistortion applied to a downstream signal amplified by the node.
    Type: Application
    Filed: July 20, 2017
    Publication date: January 24, 2019
    Inventors: Marcel F. Schemmann, Zhijian Sun
  • Publication number: 20180219627
    Abstract: Systems and methods for relaying upstream signals received from a plurality of subscribers to a remote head end. Preferably, the systems and methods use a switch that selectively opens when upstream RF signals are not present and closes when upstream RF signals are present, in a manner that reduces noise.
    Type: Application
    Filed: February 2, 2017
    Publication date: August 2, 2018
    Inventors: Marcel F. Schemmann, Venkatesh G. Mutalik, Zhijian Sun, Zoran Maricevic
  • Publication number: 20180167255
    Abstract: Methods and apparatuses are provided to modify existing overlay system architectures in a cost effective manner to meet the growing demand for narrowcast services and to position the existing overlay systems for additional future modifications. The implementations of the improved overlay system of this disclosure re-digitize narrowcast analog signals after they have been QAM modulated and upconverted to RF frequencies and replace the analog narrowcast transmitters with digital narrowcast transmitters. In the fiber nodes, the received narrowcast signals are converted back to analog signals and combined with analog broadcast signals for transmission to the service groups.
    Type: Application
    Filed: February 7, 2018
    Publication date: June 14, 2018
    Inventors: Zoran Maricevic, Marcel F. Schemmann, Dean Painchaud, William P. Dawson, Zhijian Sun
  • Patent number: 9923751
    Abstract: Methods and apparatuses are provided to modify existing overlay system architectures in a cost effective manner to meet the growing demand for narrowcast services and to position the existing overlay systems for additional future modifications. The implementations of the improved overlay system of this disclosure re-digitize narrowcast analog signals after they have been QAM modulated and upconverted to RF frequencies and replace the analog narrowcast transmitters with digital narrowcast transmitters. In the fiber nodes, the received narrowcast signals are converted back to analog signals and combined with analog broadcast signals for transmission to the service groups.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: March 20, 2018
    Assignee: ARRIS Enterprises LLC
    Inventors: Zoran Maricevic, Marcel F. Schemmann, Dean Painchaud, William P. Dawson, Zhijian Sun