Patents by Inventor Joseph Tsyr-Shya Sun

Joseph Tsyr-Shya Sun 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: 6704282
    Abstract: Virtual Private Network (VPN) tunnel redirection is accomplished by automatically redirecting tunnel initiator or network source for incoming call to another tunnel terminator or network destination according to traffic load, resource availability, or system reliability in VPN environment. Pointed terminator redirects call by sending special call clear message to tunnel initiator with IP address of recommended terminator in pool or set during PPP authentication. Initiator terminates current session with pointed terminator, establishes tunnel and/or session with recommended terminator, and starts processing again without terminating incoming call.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: March 9, 2004
    Assignee: 3Com Corporation
    Inventors: Joseph Tsyr-Shya Sun, Luis A. Daly, Chung-Wen Soung, Tapan Lala, Frank Pereira, Zhidan Cheng