Patents by Inventor Mitchell A. Rappard

Mitchell A. Rappard 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).

  • Position location system and method
    Patent number: 6581000
    Abstract: A system for determining a position of a user. The system includes a distance sensor in communication with a position tracking device. The distance sensor is for detecting movement by the user, and the position tracking device is for determining the position of the user based on detection of movement by the user and a relative change in direction input from the user.
    Type: Grant
    Filed: January 4, 2001
    Date of Patent: June 17, 2003
    Assignee: Carnegie Mellon University
    Inventors: Alexander H. Hills, Jon P. Schlegel, Mitchell A. Rappard
  • Position location system and method
    Publication number: 20020087264
    Abstract: A system for determining a position of a user. The system includes a distance sensor in communication with a position tracking device. The distance sensor is for detecting movement by the user, and the position tracking device is for determining the position of the user based on detection of movement by the user and a relative change in direction input from the user.
    Type: Application
    Filed: January 4, 2001
    Publication date: July 4, 2002
    Inventors: Alexander A. Hills, Jon P. Schlegel, Mitchell A. Rappard