Patents by Inventor Xinzhong Leon Xu

Xinzhong Leon Xu 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).

  • Interactive voice response systems with general-purpose blocks
    Patent number: 7031440
    Abstract: Techniques for generating interactive voice response systems are provided. Multiple interconnected general-purpose blocks can be configured for a specific IVR application. Each general purpose block can include prompts and logic for receiving input. By utilizing general-purpose blocks, complex IVR applications can be quickly and efficiently generated. Additionally, IVR applications can be upgraded and maintained during run-time.
    Type: Grant
    Filed: February 1, 1999
    Date of Patent: April 18, 2006
    Assignee: Ssimens Communications Inc.
    Inventor: Xinzhong Leon Xu
  • SIP-H.323 gateway implementation to integrate SIP agents into the H.323 system
    Patent number: 6738390
    Abstract: An SIP-H.323 gateway (210) is provided, which functions as a multi-alias H.323 endpoint (204) with one alias representing one SIP agent (206). The SIP-H.323 gateway (210) processes the call signaling conversions and stores and passes media port information to the signaling parties, so that the existence of SIP agents (206) is transparent to the H.323 endpoints (204) and the features are transparently available to the H.323 endpoints.
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: May 18, 2004
    Assignee: Siemens Information & Communication Networks, Inc.
    Inventors: Xinzhong Leon Xu, Mark Skrzynski, Paul Mayer