Patents by Inventor Jia-Ching Shen

Jia-Ching Shen 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).

  • Publication number: 20050282546
    Abstract: Methods and systems for providing fast handoff in WLAN-like communications system construct a caching candidate set based upon a weighted handoff tendency coefficient. The weighted handoff tendency coefficient is based upon the handoff matrix and the weighting factor. The handoff matrix is an adaptive two-dimensional array that provides a list of nearby access points relative to a mobile station and the weighting factor is a value that prioritizes the nearby access points based upon a signal quality indication. A home access point, once it is triggered to initialize proactive caching, provides the caching candidate set with registration data of the mobile station before a transfer of a connection between the home access point and one of the access points on the caching candidate set.
    Type: Application
    Filed: June 22, 2004
    Publication date: December 22, 2005
    Inventors: Chung-Ju Chang, Jia-Ching Shen, Yih-Shen Chen, Yung-Han Chen, Yi-Ting Wang, Chang Meng-Chun