Patents by Inventor Xinzhang Ma

Xinzhang Ma 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).

  • Distributed network anomaly detection
    Patent number: 10104105
    Abstract: A network device may include multiple interfaces, each including a local database to store, in a first group of local records, information associated with a first group of data units sent from or received by a first one of the group of interfaces; a global database to store, in a group of global records, information associated with the first group of data units and information associated with a second group of data units sent from or received by a second one of said group of interfaces. The device may include a processor, to manage the local database and the global database; broadcast at least one of the local records to the second one of the group of interfaces; and analyze each of the local records to identify potential anomalies in the first group of data units.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: October 16, 2018
    Assignee: Juniper Networks, Inc.
    Inventors: XinZhang Ma, David Rowell
  • DISTRIBUTED NETWORK ANOMALY DETECTION
    Publication number: 20140304813
    Abstract: A network device may include multiple interfaces, each including a local database to store, in a first group of local records, information associated with a first group of data units sent from or received by a first one of the group of interfaces; a global database to store, in a group of global records, information associated with the first group of data units and information associated with a second group of data units sent from or received by a second one of said group of interfaces. The device may include a processor, to manage the local database and the global database; broadcast at least one of the local records to the second one of the group of interfaces; and analyze each of the local records to identify potential anomalies in the first group of data units.
    Type: Application
    Filed: June 23, 2014
    Publication date: October 9, 2014
    Inventors: XinZhang MA, David Rowell
  • Distributed network anomaly detection
    Patent number: 8762334
    Abstract: A network device may include multiple interfaces, each including a local database to store, in a first group of local records, information associated with a first group of data units sent from or received by a first one of the group of interfaces; a global database to store, in a group of global records, information associated with the first group of data units and information associated with a second group of data units sent from or received by a second one of said group of interfaces. The device may include a processor, to manage the local database and the global database; broadcast at least one of the local records to the second one of the group of interfaces; and analyze each of the local records to identify potential anomalies in the first group of data units.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: June 24, 2014
    Assignee: Juniper Networks, Inc.
    Inventors: XinZhang Ma, David Rowell
  • Method and system for a point to point protocol-bridge operating mode in network communication system
    Publication number: 20040059821
    Abstract: Method and system for providing a PPP-Bridge operating mode in a data communication system is disclosed. Upon receiving a PPP connect request from a user terminal at the LAN interface in a dial-up mode of application, or through the use of pre-configuration in a leased-line mode of application, the access device establishes a PPP session with a remote PPP server via its WAN interface. Once the PPP session is established, the access device receives a public IP address from the remote PPP server and relays the received IP address via DHCP to the corresponding user terminal. To the data network, it appears as though the user terminal is operating with the public IP address from the remote PPP server, even though the PPP session is established between the access device and the remote PPP server. This method and system supports multiple PPP sessions through the use of user profiles stored on the access device.
    Type: Application
    Filed: September 24, 2002
    Publication date: March 25, 2004
    Inventors: Jian Tang, Ta-Sheng Lin, Xinzhang Ma, Guangjie Yang