Patents by Inventor Frederick W. Caspari

Frederick W. Caspari 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).

  • Frequency synthesized tuning system using a microprocessor
    Patent number: 4479248
    Abstract: A tuning system is provided in which the tuning function is substantially integrated in a microprocessor. A fixed modulus counter is cascaded with a programmable counter (or timer) found within the microprocesor thereby extending the counting range of the programmable counter. Then by prescaling the output of the local oscillator to a value below the toggle frequency of the microprocessor counter, the microprocessor may periodically measure the output frequency of the oscillator and, if necessary, generate correction signals therefor.
    Type: Grant
    Filed: September 23, 1982
    Date of Patent: October 23, 1984
    Assignee: The Magnavox Company
    Inventors: Frederick W. Caspari, Bruce E. Smith, Daniel A. Heuer