Patents by Inventor Alex Luo

Alex Luo 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).

  • Token-based lightweight approach to manage the active-passive system topology in a distributed computing environment
    Patent number: 10608882
    Abstract: A method of managing an active-passive topology in a distributed computing environment comprising a plurality of systems each having a token manager connected to a common resource accessible by all of the systems comprising a token pool of tokens. The token manager locks the token pool and checks the token pool for an available token. When a token is available, the token manager leases the available token and unlocks the token pool. The token manager designates the system as an active system and alters an owner of the token to the active system. The token manager of the active system updates a leasing time of the token leased during use of the token by the active system and in response to an active system deactivation or stoppage, the token manager locks the token pool to return the token to the token pool and unlocking the token pool.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: March 31, 2020
    Assignee: International Business Machines Corporation
    Inventors: Paul Chen, Philip Kurowski, Alex Luo
  • Fiber-to-coax conversion unit and method of using same
    Patent number: 10219053
    Abstract: A fiber-to-coax optical network unit for converting one or more Gigabit or Ethernet Passive Optical Network (GPON or EPON) fibers to one or more coaxial cable lines to connect a subscriber's premises to a Community Access Television (CATV) system.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: February 26, 2019
    Assignee: Viavi Solutions, Inc.
    Inventors: Alex Luo, Terry W. Bush
  • TOKEN-BASED LIGHTWEIGHT APPROACH TO MANAGE THE ACTIVE-PASSIVE SYSTEM TOPOLOGY IN A DISTRIBUTED COMPUTING ENVIRONMENT
    Publication number: 20180234304
    Abstract: A method of managing an active-passive topology in a distributed computing environment comprising a plurality of systems each having a token manager connected to a common resource accessible by all of the systems comprising a token pool of tokens. The token manager locks the token pool and checks the token pool for an available token. When a token is available, the token manager leases the available token and unlocks the token pool. The token manager designates the system as an active system and alters an owner of the token to the active system. The token manager of the active system updates a leasing time of the token leased during use of the token by the active system and in response to an active system deactivation or stoppage, the token manager locks the token pool to return the token to the token pool and unlocking the token pool.
    Type: Application
    Filed: February 16, 2017
    Publication date: August 16, 2018
    Inventors: Paul Chen, Philip Kurowski, Alex Luo
  • FIBER-TO-COAX CONVERSION UNIT AND METHOD OF USING SAME
    Publication number: 20170289656
    Abstract: A fiber-to-coax optical network unit for converting one or more Gigabit or Ethernet Passive Optical Network (GPON or EPON) fibers to one or more coaxial cable lines to connect a subscriber's premises to a Community Access Television (CATV) system.
    Type: Application
    Filed: March 29, 2017
    Publication date: October 5, 2017
    Inventors: Alex Luo, Terry W. Bush