Patents by Inventor Yunhou Li

Yunhou Li 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).

  • Method and apparatus for forwarding multicast data by relaying IGMP group membership
    Patent number: 6654371
    Abstract: A method, apparatus and article of manufacture for forwarding multicast data by relaying IGMP group membership. A router is used to build a database of a plurality of interfaces and corresponding multicast groups, and the database is stored on the router. Information from the database is reported upstream to a multicast router. Multicast data is received from the multicast router and distributed to the plurality of interfaces based upon the database.
    Type: Grant
    Filed: April 15, 1999
    Date of Patent: November 25, 2003
    Assignee: Nortel Networks Limited
    Inventors: Adam Dunstan, Larry DiBurro, Yunhou Li