Patents by Inventor Sean Quan Du

Sean Quan Du 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).

  • Patent number: 6615131
    Abstract: An enhanced operating environment for an Interactive Real-Time Distributed Navigation system is disclosed. In the present invention, an enhanced operating environment is provided by improving input and output techniques in a navigation system. Disclosed are methods for reducing the number of inputs to a navigational sytstem through a wireless device. Improved input methods include methods for entering non-deterministic information to retrieve deterministic information. Also disclosed are improved output techniques including methods for pacing navigational prompts provided by a navigation system. The invention is applicable to text, graphics or audible navigation systems.
    Type: Grant
    Filed: May 17, 2000
    Date of Patent: September 2, 2003
    Assignee: TeleVigation, Inc.
    Inventors: Robert Rennard, Sean Quan Du, Sami Fawzi Nasser, Yi-Chung Chao, Ruslan Adikovich Meshenberg, Haiping Jin, Chung Benjamin Yip
  • Patent number: 6405123
    Abstract: A method and system for interactive real-time distributed navigation employs improved techniques for input and output. The method and system may receive inputs through a wireless device. The operating environment simplifies and reduces these inputs. In some embodiments, the system receives non-deterministic input to generate deterministic information using a number of methods. The system may also employ improved output techniques including methods for pacing navigational prompts provided by a navigation system, and methods of providing navigational information to a number of users. The method and system are applicable to text, graphics or audible navigation systems.
    Type: Grant
    Filed: May 17, 2000
    Date of Patent: June 11, 2002
    Assignee: TeleVigation, Inc.
    Inventors: Robert Rennard, Sean Quan Du, Sami Fawzi Nasser, Yi-Chung Chao, Ruslan Adikovich Meshenberg, Haiping Jin, Chung Benjamin Yip