Patents by Inventor Robertt H. Cornett

Robertt H. Cornett 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).

  • Methods and apparatus for electronically detecting siren sounds for controlling traffic control lights for signalling the right of way to emergency vehicles at intersections or to warn motor vehicle operators of an approaching emergency vehicle
    Patent number: 8094040
    Abstract: A siren sensor for detecting siren sounds emitted from emergency vehicles and electronic processing circuits for detecting and identifying the siren sounds electronically to control the traffic signal lights at an intersection to permit only the emergency vehicle to travel through an intersection with the right of way. The method and apparatus utilizes an acoustic horn in combination with a microphone for receiving the siren sounds and converting them to corresponding electrical signals. A conventional horn is modified to function as an acoustic lens to filter and amplify the siren sounds applied to the microphone. The modified acoustic horn and microphone combination comprise a tuned and directional audio sensor sensitive in the frequency range of an emergency vehicle siren. The electronic signal processing circuitry amplifies the resulting microphone signals to obtain the maximum sensitivity to the frequency spectrum of siren sounds.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: January 10, 2012
    Inventors: Robertt H. Cornett, Jeffery I. Berlin