Patents by Inventor Khai N. Truong

Khai N. Truong 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).

  • Sub-room-level indoor location system using power line positioning
    Patent number: 8392107
    Abstract: Disclosed is an indoor location system that uses an electrical power line, power line signal injection devices, and portable position receivers (tags) to generate location data relating to positions of the tags in a structure such as a residence or business. The indoor location system fingerprinting of multiple signals transmitted along the power line to achieve sub-room-level localization of the positioning receivers. Details regarding power line positioning are described along with how it compares favorably to other fingerprinting techniques.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: March 5, 2013
    Assignee: Georgia Tech Research Corporation
    Inventors: Shwetak N. Patel, Khai N. Truong, Gregory D. Abowd, Thomas Robertson, Matthew S. Reynolds