Patents by Inventor Weiduo Zhao

Weiduo Zhao 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 IMPLEMENTING AN ORIGINAL CALL ANCHORING IN VOICE CALL CONTINUITY SERVICE
    Publication number: 20100008340
    Abstract: The present invention offers a system and method for implementing an original call anchoring in voice call continuity service, and the system comprises the MSC/VLR, HLR, MGCF and VCC application server.
    Type: Application
    Filed: February 27, 2007
    Publication date: January 14, 2010
    Applicant: ZTE CORPORATION
    Inventors: Zhendong Li, Xiaofei Cao, Weiduo Zhao, Xiaolan Tang