Patents by Inventor Tai Y. Yu

Tai Y. Yu 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).

  • Methods and apparatus for synchronizing subnet mapping tables
    Patent number: 7362742
    Abstract: Methods and apparatus for enabling mobility of a node that does not support Mobile IP through synchronization of access point information (e.g., subnet mapping tables) among AAPs are disclosed. In accordance with one embodiment, an authoritative access point (AAP) maintains access point information for all functioning access points (APs) and sends updates for all additions or other modifications to the continually changing access point information to other AAPs. This is accomplished by sending a copy of its local subnet mapping table to the other AAPs. The AAPs receiving the subnet mapping table then update their subnet mapping tables corresponding to the received subnet mapping table.
    Type: Grant
    Filed: January 28, 2003
    Date of Patent: April 22, 2008
    Assignee: Cisco Technology, Inc.
    Inventors: Waseem A. Siddiqi, Arunkumar B. Thippeswamy, Tai Y. Yu