Patents by Inventor Po-Chung Wu

Po-Chung Wu 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).

  • System and method for data communication handoff across heterogenous wireless networks
    Patent number: 7206301
    Abstract: A system and method of data communication handoff across heterogeneous wireless networks. A wireless telephony network comprises a base station system (BSS) and a visit location register (VLR). The BSS manages data communication in a cell. The VLR generates a temporary authentication identity applicable in the cell when a mobile terminal is successful authentication for data communication via the wireless telephony network, and transmits the temporary authentication identity to the mobile terminal. A wireless local area network (WLAN) located in the cell comprises an access point. The access point receives the temporary authentication identity from the wireless telephony network and authenticates the mobile terminal for data communication via the WLAN by verifying the temporary authentication identity upon the mobile terminal associates with the access point.
    Type: Grant
    Filed: March 8, 2004
    Date of Patent: April 17, 2007
    Assignee: Institute for Information Industry
    Inventors: Po-Chung Wu, Yu-Te Chen, Chih-Ming Chou
  • System and method for data communication handoff across heterogeneous wireless networks
    Publication number: 20050122941
    Abstract: A system and method of data communication handoff across heterogeneous wireless networks. A wireless telephony network comprises a base station system (BSS) and a visit location register (VLR). The BSS manages data communication in a cell. The VLR generates a temporary authentication identity applicable in the cell when a mobile terminal is successful authentication for data communication via the wireless telephony network, and transmits the temporary authentication identity to the mobile terminal. A wireless local area network (WLAN) located in the cell comprises an access point. The access point receives the temporary authentication identity from the wireless telephony network and authenticates the mobile terminal for data communication via the WLAN by verifying the temporary authentication identity upon the mobile terminal associates with the access point.
    Type: Application
    Filed: March 8, 2004
    Publication date: June 9, 2005
    Inventors: Po-Chung Wu, Yu-Te Chen, Chih-Ming Chou