Patents by Inventor Ronald C. Briggs

Ronald C. Briggs 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).

  • Communication tuning system utilizing local oscillator frequency selection for maximum RF filter bandwidth and method thereof
    Patent number: 4234965
    Abstract: The local oscillator frequency in a communication tuning system is selected to either high side mix or low side mix as appropriate to place the local oscillator frequency and image frequency outside the bandpass range of the bandpass filter. This allows bandpass filters having a frequency range equal to approximately twice the IF frequency in a transmitter, and approximately four times the IF frequency in a receiver.
    Type: Grant
    Filed: June 28, 1978
    Date of Patent: November 18, 1980
    Assignee: Motorola, Inc.
    Inventors: Robert H. Bickley, Ronald C. Briggs, Ronald C. Jost