Patents by Inventor Angelo P. DeBenedictis

Angelo P. DeBenedictis 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).

  • Pulse code modulation responsive alarm system
    Patent number: 4260982
    Abstract: A system for producing an alarm whenever the distance between a transmitter and a receiver exceeds a predetermined distance. The transmitter includes circuitry for generating a signal having a preselected pulse code modulation pattern. The receiver includes circuitry for responding to the particular pulse code pattern and for sounding an alarm when the signal from the transmitter is so weak that pattern is not received.
    Type: Grant
    Filed: October 25, 1979
    Date of Patent: April 7, 1981
    Inventors: Angelo P. DeBenedictis, Plato Zorzy