Patents by Inventor John Chamberlin

John Chamberlin 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).

  • Method and detection of phase and frequency modulation
    Patent number: 4085367
    Abstract: There is disclosed a measurement and recording system having means for simultaneously displaying and recording the spectrum of a signal and the instantaneous phase of selected spectral components of the signal with respect to a local reference signal. Means are disclosed for displaying and recording the signal element lengths as a function of time. The system and method enables an analysis of digitally modulated signals of unknown modulation.The system also provides a means to detect faults in the system equipment that may be generating signals having undesirable variations in phase, frequency, or amplitude.
    Type: Grant
    Filed: December 10, 1976
    Date of Patent: April 18, 1978
    Assignee: RCA Corporation
    Inventors: John Chamberlin Williams, William Braxton Sisco