Patents by Inventor C. Alfred Paladino

C. Alfred Paladino 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 for selectively operable dual simultaneous siren broadcast from a single speaker
    Patent number: 4088995
    Abstract: A system for broadcasting two siren sounds simultaneously over a single speaker. This function is performed by adding or subtracting the signals.
    Type: Grant
    Filed: February 25, 1977
    Date of Patent: May 9, 1978
    Assignee: International Telephone and Telegraph Corporation
    Inventor: C. Alfred Paladino
  • Sound communication system with speaker protection for frequencies below a predetermined minimum
    Patent number: 4078209
    Abstract: A sound communication system incorporating a triangle wave generator (TWG), a voltage controlled oscillator (VCO) and an output circuit including one or more loudspeakers. The output circuit is connected from the output of the VCO. The output of the TWG is connected to the input of the VCO to control its frequency of oscillation. The TWG can be actuated by a horn ring switch or a momentary contact switch, either of which, when closed, grounds the TWG input and causes the TWG to oscillate. A transistor switch is connected from the TWG input and a third lead from the VCO to cut off the VCO to protect the speaker(s) from damage due to low frequencies.
    Type: Grant
    Filed: March 11, 1977
    Date of Patent: March 7, 1978
    Assignee: International Telephone and Telegraph Corporation
    Inventor: C. Alfred Paladino