Patents Assigned to SpeedInfo, LLC
  • Self-powered vehicle speed sensor
    Patent number: 7558695
    Abstract: Sensing vehicle speed is disclosed. A speed sensor is self powered. The speed sensor measures a speed data of multiple vehicles with one Doppler pulse. A sample is taken of speed sensor data from the speed sensor. The sample of speed sensor data is processed to calculate speed. The calculated speed is wirelessly transmitted to a server.
    Type: Grant
    Filed: August 10, 2004
    Date of Patent: July 7, 2009
    Assignee: SpeedInfo, LLC
    Inventors: Theodore Calderone, Doug Finlay