Patents by Inventor Larry H. Chang

Larry H. Chang 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 dynamically forming multimedia emulated local area networks
    Patent number: 5812552
    Abstract: A temporary multimedia ELAN is formed on top of one or more existing ELANs between those end-stations (121-1, 121-2, 111-1) participating in a multimedia session, such as a video conference, at the time of initiating the session. At the end of the session the temporary ELAN is torn down. When the temporary ELAN is created an available LAN Emulation Server (LES) (241) and an available Broadcast and Unknown Server (BUS) (243) are allocated to serve those end-stations participating in the multimedia session. The BUS also serves as a multicast server to multicast a multimedia stream from one end-station to each other end-station on the temporary ELAN. The initiator of a session accesses a Multimedia Session Manager (401), which oversees and manages the session and coordinates the necessary resources.
    Type: Grant
    Filed: March 19, 1996
    Date of Patent: September 22, 1998
    Inventors: Vivek Arora, Larry H. Chang, Seyhan Civanlar, Vikram R. Saksena, Agnes C. Tow