Patents by Inventor Qingzhi Liu

Qingzhi 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).

  • Patent number: 11237345
    Abstract: This application discloses an optical backplane system, which includes a first upper-level optical interconnection module, a first lower-level optical interconnection module, and a second lower-level optical interconnection module. The first upper-level optical interconnection module includes M1 first interfaces and N1 second interfaces in connection relationships. The first lower-level optical interconnection module includes L1 third interfaces and K1 fourth interfaces in connection relationships. The second lower-level optical interconnection module includes L2 third interfaces and K2 fourth interfaces in connection relationships. The first upper-level optical interconnection module is connected to one of the L1 third interfaces of the first lower-level optical interconnection module by using one of the N1 second interfaces.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: February 1, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Daochun Mo, Qingzhi Liu, Xiaofei Xu, Wenyang Lei, Chuang Wang, Linchun Wang
  • Patent number: 10805107
    Abstract: The present disclosure relates to registration methods and devices. One example method includes obtaining, by a line card, line card information of the line card, the line card comprising a fabric interface chip optically interconnected to a switch fabric chip in at least one switch fabric card by using an optical fiber, and sending, by the line card, the line card information to the at least one switch fabric card through an optical interconnect path. The at least one switch fabric card registers the line card based on the line card information.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: October 13, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xiaofei Xu, Qingzhi Liu, Xiaojun Zhang, Linchun Wang, Jingzhou Yu
  • Publication number: 20200292770
    Abstract: This application discloses an optical backplane system, which includes a first upper-level optical interconnection module, a first lower-level optical interconnection module, and a second lower-level optical interconnection module. The first upper-level optical interconnection module includes M1 first interfaces and N1 second interfaces in connection relationships. The first lower-level optical interconnection module includes L1 third interfaces and K1 fourth interfaces in connection relationships. The second lower-level optical interconnection module includes L2 third interfaces and K2 fourth interfaces in connection relationships. The first upper-level optical interconnection module is connected to one of the L1 third interfaces of the first lower-level optical interconnection module by using one of the N1 second interfaces.
    Type: Application
    Filed: May 29, 2020
    Publication date: September 17, 2020
    Inventors: Daochun MO, Qingzhi LIU, Xiaofei XU, Wenyang LEI, Chuang WANG, Linchun WANG
  • Publication number: 20190222436
    Abstract: The present disclosure relates to registration methods and devices. One example method includes obtaining, by a line card, line card information of the line card, the line card comprising a fabric interface chip optically interconnected to a switch fabric chip in at least one switch fabric card by using an optical fiber, and sending, by the line card, the line card information to the at least one switch fabric card through an optical interconnect path. The at least one switch fabric card registers the line card based on the line card information.
    Type: Application
    Filed: March 27, 2019
    Publication date: July 18, 2019
    Inventors: Xiaofei XU, Qingzhi LIU, Xiaojun ZHANG, Linchun WANG, Jingzhou YU
  • Patent number: 8532114
    Abstract: A cluster router includes at least one control apparatus and at least two forwarding apparatuses. The control apparatus is connected to the forwarding apparatuses, and the forwarding apparatuses are connected with each other. The control apparatus is configured to generate a routing table of each forwarding apparatus and a packet processing information conversion table of each forwarding apparatus. The forwarding apparatus is configured to receive the routing table of the forwarding apparatus and the packet processing information conversion table of the forwarding apparatus, and execute data exchange between the forwarding apparatuses according to the routing table and the packet processing information conversion table.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: September 10, 2013
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Enhui Liu, Zhanfeng Wang, Qingzhi Liu
  • Publication number: 20120189019
    Abstract: A cluster router includes at least one control apparatus and at least two forwarding apparatuses. The control apparatus is connected to the forwarding apparatuses, and the forwarding apparatuses are connected with each other. The control apparatus is configured to generate a routing table of each forwarding apparatus and a packet processing information conversion table of each forwarding apparatus. The forwarding apparatus is configured to receive the routing table of the forwarding apparatus and the packet processing information conversion table of the forwarding apparatus, and execute data exchange between the forwarding apparatuses according to the routing table and the packet processing information conversion table.
    Type: Application
    Filed: April 3, 2012
    Publication date: July 26, 2012
    Inventors: Enhui Liu, Zhanfeng Wang, Qingzhi Liu