Patents by Inventor Dermot Thomas Fucito

Dermot Thomas Fucito 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).

  • Patent number: 3999137
    Abstract: The subject of the disclosure is low-pass filter apparatus for use in filtering out noise in a signal channel for propagating PAM signals. A sample and hold circuit which operates in synchronism with the presence of PAM pulses is provided as the input section. The output of the sample and hold circuit is applied to a four-pole, low-pass, RC active filter network. An adjustment is made to the active filter network such that the filter network's low frequency complex pole pair is changed to provide compensation for an undesired roll-off of band pass in the intended in-band region due to the frequency response characteristics of the sample and hold circuit. The resultant apparatus provides a significant reduction in active filter gain required for a given PAM duty cycle. It also provides increased noise rejection capability in the out-of-band region of operation.
    Type: Grant
    Filed: January 2, 1976
    Date of Patent: December 21, 1976
    Assignee: Stromberg-Carlson Corporation
    Inventor: Dermot Thomas Fucito