Patents by Inventor Jacques Rostren

Jacques Rostren 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).

  • System and a method for locating a rail vehicle at points along a rail track equipped with beacons and an antenna adapted to be fitted to the system
    Patent number: 6693562
    Abstract: A system locates a rail vehicle at points along a rail track equipped with a system of beacons which convey information to the vehicle by transmitting an electromagnetic signal. The vehicle includes an antenna having a first receiver circuit for picking up electromagnetic signals transmitted by the beacon when the antenna passes it. The antenna includes a second receiver circuit in the form of a figure-of-eight loop for accurately determining the moment at which the antenna is centered over the beacon.
    Type: Grant
    Filed: December 26, 2001
    Date of Patent: February 17, 2004
    Assignee: Alstom
    Inventor: Jacques Rostren
  • System and a method for locating a rail vehicle at points along a rail track equipped with beacons and an antenna adapted to be fitted to the system
    Publication number: 20020121991
    Abstract: A system locates a rail vehicle at points along a rail track equipped with a system of beacons which convey information to the vehicle by transmitting an electromagnetic signal. The vehicle includes an antenna having a first receiver circuit for picking up electromagnetic signals transmitted by the beacon when the antenna passes it. The antenna includes a second receiver circuit in the form of a figure-of-eight loop for accurately determining the moment at which the antenna is centered over the beacon.
    Type: Application
    Filed: December 26, 2001
    Publication date: September 5, 2002
    Applicant: ALSTOM
    Inventor: Jacques Rostren