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Clear-cross crossing system

  • US 6,448,904 B1
  • Filed: 02/21/2001
  • Issued: 09/10/2002
  • Est. Priority Date: 02/23/2000
  • Status: Expired due to Fees
First Claim
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1. A traffic signal controller system for controlling an existing traffic signal controller;

  • the traffic signal controller system comprising;

    a strobe light/receiver unit attachable to an existing traffic signal controller; and

    a transmitter mounted to a dashboard in an emergency vehicle that transmits an activation signal to the receiver unit for overriding operation of the existing traffic signal controller and causing the existing traffic signal controller to illuminate a green light in the direction of an oncoming emergency vehicle;

    the transmitter including a frequency and intensity adjustment knob for adjusting the frequency of the intensity of the transmitted activation signal.

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