Patents by Inventor Thomas J. Boland

Thomas J. Boland 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 spectrum analyzer with phase-lock
    Patent number: 4430611
    Abstract: A frequency-spectrum analyzer with phase-lock for analyzing the frequency and amplitude of an input signal is comprised of a voltage controlled oscillator (VCO) which is driven by a ramp generator, and a phase error detector circuit. The phase error detector circuit measures the difference in phase between the VCO and the input signal, and drives the VCO locking it in phase momentarily with the input signal. The input signal and the output of the VCO are fed into a correlator which transfers the input signal to a frequency domain, while providing an accurate absolute amplitude measurement of each frequency component of the input signal.
    Type: Grant
    Filed: July 29, 1981
    Date of Patent: February 7, 1984
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Thomas J. Boland