Patents by Inventor Liwu Liu

Liwu 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: 10523458
    Abstract: A technique allows stations to utilize an equal share of resources (e.g., airtime or throughput). This prevents slow stations from consuming too many resources (e.g., using up too much air time). Fairness is ensured by selective dropping after a multicast packet is converted to unicast. This prevents slow stations from using more than their share of buffer resources. Multicast conversion aware back-pressure into the network layer can be used to prevent unnecessary dropping of packets after multicast to unicast (1:n) conversion by considering duplicated transmit buffers. This technique helps achieve airtime/resource fairness among stations.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: December 31, 2019
    Assignee: Extreme Networks, Inc.
    Inventors: Liwu Liu, Jianlin Zeng
  • Publication number: 20190190735
    Abstract: A technique allows stations to utilize an equal share of resources (e.g., airtime or throughput). This prevents slow stations from consuming too many resources (e.g., using up too much air time). Fairness is ensured by selective dropping after a multicast packet is converted to unicast. This prevents slow stations from using more than their share of buffer resources. Multicast conversion aware back-pressure into the network layer can be used to prevent unnecessary dropping of packets after multicast to unicast (1:n) conversion by considering duplicated transmit buffers. This technique helps achieve airtime/resource fairness among stations.
    Type: Application
    Filed: February 12, 2019
    Publication date: June 20, 2019
    Applicant: Aerohive Networks, Inc.
    Inventors: Liwu Liu, Jianlin Zeng
  • Patent number: 10205604
    Abstract: A technique allows stations to utilize an equal share of resources (e.g., airtime or throughput). This prevents slow stations from consuming too many resources (e.g., using up too much air time). Fairness is ensured by selective dropping after a multicast packet is converted to unicast. This prevents slow stations from using more than their share of buffer resources. Multicast conversion aware back-pressure into the network layer can be used to prevent unnecessary dropping of packets after multicast to unicast (1:n) conversion by considering duplicated transmit buffers. This technique helps achieve airtime/resource fairness among stations.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: February 12, 2019
    Assignee: Aerohive Networks, Inc.
    Inventors: Liwu Liu, Jianlin Zeng
  • Publication number: 20170302467
    Abstract: A technique allows stations to utilize an equal share of resources (e.g., airtime or throughput). This prevents slow stations from consuming too many resources (e.g., using up too much air time). Fairness is ensured by selective dropping after a multicast packet is converted to unicast. This prevents slow stations from using more than their share of buffer resources. Multicast conversion aware back-pressure into the network layer can be used to prevent unnecessary dropping of packets after multicast to unicast (1:n) conversion by considering duplicated transmit buffers. This technique helps achieve airtime/resource fairness among stations.
    Type: Application
    Filed: June 19, 2017
    Publication date: October 19, 2017
    Applicant: Aerohive Networks, Inc.
    Inventors: Liwu Liu, Jianlin Zeng
  • Patent number: 9729463
    Abstract: A technique allows stations to utilize an equal share of resources (e.g., airtime or throughput). This prevents slow stations from consuming too many resources (e.g., using up too much air time). Fairness is ensured by selective dropping after a multicast packet is converted to unicast. This prevents slow stations from using more than their share of buffer resources. Multicast conversion aware back-pressure into the network layer can be used to prevent unnecessary dropping of packets after multicast to unicast (1:n) conversion by considering duplicated transmit buffers. This technique helps achieve airtime/resource fairness among stations.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: August 8, 2017
    Assignee: Aerohive Networks, Inc.
    Inventors: Liwu Liu, Jianlin Zeng
  • Publication number: 20170149680
    Abstract: A technique allows stations to utilize an equal share of resources (e.g., airtime or throughput). This prevents slow stations from consuming too many resources (e.g., using up too much air time). Fairness is ensured by selective dropping after a multicast packet is converted to unicast. This prevents slow stations from using more than their share of buffer resources. Multicast conversion aware back-pressure into the network layer can be used to prevent unnecessary dropping of packets after multicast to unicast (1:n) conversion by considering duplicated transmit buffers. This technique helps achieve airtime/resource fairness among stations.
    Type: Application
    Filed: December 16, 2016
    Publication date: May 25, 2017
    Applicant: Aerohive Networks, Inc.
    Inventors: Liwu Liu, Jianlin Zeng
  • Patent number: 9565125
    Abstract: A technique allows stations to utilize an equal share of resources (e.g., airtime or throughput). This prevents slow stations from consuming too many resources (e.g., using up too much air time). Fairness is ensured by selective dropping after a multicast packet is converted to unicast. This prevents slow stations from using more than their share of buffer resources. Multicast conversion aware back-pressure into the network layer can be used to prevent unnecessary dropping of packets after multicast to unicast (1:n) conversion by considering duplicated transmit buffers. This technique helps achieve airtime/resource fairness among stations.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: February 7, 2017
    Assignee: Aerohive Networks, Inc.
    Inventors: Liwu Liu, Jianlin Zeng
  • Publication number: 20150188836
    Abstract: A technique allows stations to utilize an equal share of resources (e.g., airtime or throughput). This prevents slow stations from consuming too many resources (e.g., using up too much air time). Fairness is ensured by selective dropping after a multicast packet is converted to unicast. This prevents slow stations from using more than their share of buffer resources. Multicast conversion aware back-pressure into the network layer can be used to prevent unnecessary dropping of packets after multicast to unicast (1:n) conversion by considering duplicated transmit buffers. This technique helps achieve airtime/resource fairness among stations.
    Type: Application
    Filed: March 11, 2015
    Publication date: July 2, 2015
    Applicant: AEROHIVE NETWORKS, INC.
    Inventors: Liwu Liu, Jianlin Zeng
  • Patent number: 9008089
    Abstract: A technique allows stations to utilize an equal share of resources (e.g., airtime or throughput). This prevents slow stations from consuming too many resources (e.g., using up too much air time). Fairness is ensured by selective dropping after a multicast packet is converted to unicast. This prevents slow stations from using more than their share of buffer resources. Multicast conversion aware back-pressure into the network layer can be used to prevent unnecessary dropping of packets after multicast to unicast (1:n) conversion by considering duplicated transmit buffers. This technique helps achieve airtime/resource fairness among stations.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: April 14, 2015
    Assignee: Aerohive Networks, Inc.
    Inventors: Liwu Liu, Jianlin Zeng
  • Publication number: 20140307557
    Abstract: A technique allows stations to utilize an equal share of resources (e.g., airtime or throughput). This prevents slow stations from consuming too many resources (e.g., using up too much air time). Fairness is ensured by selective dropping after a multicast packet is converted to unicast. This prevents slow stations from using more than their share of buffer resources. Multicast conversion aware back-pressure into the network layer can be used to prevent unnecessary dropping of packets after multicast to unicast (1:n) conversion by considering duplicated transmit buffers. This technique helps achieve airtime/resource fairness among stations.
    Type: Application
    Filed: June 25, 2014
    Publication date: October 16, 2014
    Applicant: AEROHIVE NETWORKS, INC.
    Inventors: Liwu Liu, Jianlin Zeng
  • Patent number: 8787375
    Abstract: A technique allows stations to utilize an equal share of resources (e.g., airtime or throughput). This prevents slow stations from consuming too many resources (e.g., using up too much air time). Fairness is ensured by selective dropping after a multicast packet is converted to unicast. This prevents slow stations from using more than their share of buffer resources. Multicast conversion aware back-pressure into the network layer can be used to prevent unnecessary dropping of packets after multicast to unicast (1:n) conversion by considering duplicated transmit buffers. This technique helps achieve airtime/resource fairness among stations.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: July 22, 2014
    Assignee: Aerohive Networks, Inc.
    Inventors: Liwu Liu, Jianlin Zeng
  • Publication number: 20130336319
    Abstract: A technique allows stations to utilize an equal share of resources (e.g., airtime or throughput). This prevents slow stations from consuming too many resources (e.g., using up too much air time). Fairness is ensured by selective dropping after a multicast packet is converted to unicast. This prevents slow stations from using more than their share of buffer resources. Multicast conversion aware back-pressure into the network layer can be used to prevent unnecessary dropping of packets after multicast to unicast (1:n) conversion by considering duplicated transmit buffers. This technique helps achieve airtime/resource fairness among stations.
    Type: Application
    Filed: October 5, 2012
    Publication date: December 19, 2013
    Inventors: Liwu LIU, Jianlin Zeng
  • Patent number: 6772102
    Abstract: A method for determining an optimal placement of wavelength converters in an optical network while optimizing bandwidth use in which a skeleton undirected graph of a WDM network is generated, a contraction graph is constructed from the skeleton undirected graph, and a minimum vertex cover of the contraction graph is determined.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: August 3, 2004
    Assignee: Illinois Institute of Technology
    Inventors: Peng-Jun Wan, Ophir Frieder, Liwu Liu