Patents by Inventor Eric Spitz

Eric Spitz 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).

  • Local area multiple object tracking system
    Patent number: 6204813
    Abstract: A radio frequency positioning system is described that determines identity and positional data of numerous objects. The system includes a plurality of spread spectrum radio transceivers where at least one transceiver is positioned on each of the numerous objects. At least three spread spectrum radio transceivers transmit to and receive signals from the plurality of radio transceivers. A signal processor is coupled to the spread spectrum radio transceivers and determines the identity and the positional data of the objects.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: March 20, 2001
    Assignee: Trakus, Inc.
    Inventors: Brian C. Wadell, Robert J. McCarthy, Eric L. Gravengaard, Eric Spitz, Vahe Katros
  • Electrically controlled switching device
    Patent number: 4065677
    Abstract: The invention relates to electrically controlled switching devices in which a movable member can occupy at least two stable positions. The invention has for its object to provide a switching device in which the movable member is a dielectric body having received a persistent electric charge. This body can occupy stable positions defined on an insulating support by conductive pads. The switching is produced by a potential difference applied between the conductive pads.
    Type: Grant
    Filed: December 23, 1975
    Date of Patent: December 27, 1977
    Assignee: Thomson-CSF
    Inventors: Francois Micheron, Gerard Doriath, Eric Spitz