Patents by Inventor Chien-Chan Hsu

Chien-Chan Hsu 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 mobility management in communication networks
    Patent number: 8369292
    Abstract: A communication network for use in mobile communications may include at least one mobile device configured to communicate with a corresponding host through the communication network. The communication network may also include a packet data gateway configured to detect an attachment of the mobile device roaming into a wireless local area network controlled by the packet data gateway. Further, the communication network may include a mobility server coupled to the packet data gateway to establish a call session between the mobile device and the corresponding host.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: February 5, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Wei-Kuo Chiang, Che-Shiun Ho, Chien-Chan Hsu
  • Method and apparatus for mobility management in communication networks
    Publication number: 20080037481
    Abstract: A communication network for use in mobile communications may include at least one mobile device configured to communicate with a corresponding host through the communication network. The communication network may also include a packet data gateway configured to detect an attachment of the mobile device roaming into a wireless local area network controlled by the packet data gateway. Further, the communication network may include a mobility server coupled to the packet data gateway to establish a call session between the mobile device and the corresponding host.
    Type: Application
    Filed: June 30, 2006
    Publication date: February 14, 2008
    Inventors: Wei-Kuo Chiang, Che-Shiun Ho, Chien-Chan Hsu
  • Method and system of providing cellular/WLAN dual mode telecommunication services
    Publication number: 20060089169
    Abstract: A method and a system of providing cellular/wireless network dual mode communication services are provided. The wireless network interface normally stays in the standby mode, and the cellular interface is closed. When receiving calls, the cellular system receives the calls and wakes up the wireless network system to communicate to the calls. Hence, the power consumption of the dual mode phone is minimized.
    Type: Application
    Filed: January 21, 2005
    Publication date: April 27, 2006
    Inventors: Shiao-Li Tsao, Hung-Chi Hsu, Chien-Chan Hsu