Patents by Inventor Andrew Furiga

Andrew Furiga 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).

  • Wideband FM modulator and AFC control loop therefor
    Patent number: 4387351
    Abstract: An AFC loop for controlling the frequency of a VCO including an A to D converter and divider for providing pulses at some frequency equal to or lower than the output of the VCO, a source of stable reference pulses and a counter constructed to count to a predetermined number and count the reference pulses in synchronism with the divided pulses, a second divider connected to divide the reference pulses by the predetermined number and means for subtracting the output of the second divider from the counter to provide a control voltage for the VCO which is proportional to the drift in frequency of the VCO from a mean frequency.
    Type: Grant
    Filed: December 18, 1980
    Date of Patent: June 7, 1983
    Assignee: Motorola Inc.
    Inventors: Andrew Furiga, Donald J. Sabourin