Patents by Inventor Dat Ba Nguyen

Dat Ba Nguyen 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).

  • Access network architecture for multicasting using xDSL and IGMP
    Patent number: 7489684
    Abstract: IGMP is a protocol for managing and controlling multicast of data streams to a plurality of end users connected to a telecommunications network through an access system. A novel implementation of IGMP for multicasting data streams in an xDSL access network system is disclosed. DSLAM (Digital Subscriber Line Asynchronous Multiplexer) or ASAM (ATM Subscriber Access Multiplexer) is used in the access network system and interfaces between the telecommunications network and the plurality of end users. IGMP signals are terminated at LT (Line Termination). A better scalability of the access system can be achieved, resulting in increased numbers of end users.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: February 10, 2009
    Assignee: Alcatel Lucent
    Inventors: Bakri Aboukarr, Dat Ba Nguyen, Allan Leslie Poulsen
  • IGMP expedited leave triggered by MAC address
    Patent number: 7228356
    Abstract: Method and apparatus for improving channel changing or channel surfing functionality in IGMP supported services.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: June 5, 2007
    Assignee: Alcatel Canada Inc.
    Inventors: Dat Ba Nguyen, Bakri Aboukarr, Gregory Erich Gyetko
  • IGMP expedited leave triggered by MAC address
    Publication number: 20040117503
    Abstract: Method and apparatus for improving channel changing or channel surfing functionality in IGMP supported services.
    Type: Application
    Filed: December 12, 2002
    Publication date: June 17, 2004
    Applicant: Alcatel Canada Inc.
    Inventors: Dat Ba Nguyen, Bakri Aboukarr, Gregory Erich Gyetko