Patents by Inventor Ronald Howard Chapman

Ronald Howard Chapman 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).

  • Sampled signal detector
    Patent number: 4064488
    Abstract: A few cycles of an input signal are correlated, or compared, with a few cycles of the input signal received at a previous interval and the interval is varied when correlation, or a positive comparison, has been obtained with the apparatus providing an output or detection signal after a predetermined number of correlations have occurred.
    Type: Grant
    Filed: June 10, 1976
    Date of Patent: December 20, 1977
    Assignee: Motorola, Inc.
    Inventor: Ronald Howard Chapman
  • Analog to digital converter for asynchronous detector
    Patent number: 4006454
    Abstract: In combination with an asynchronous detector for detecting a particular digital word within a train of signals wherein the detector samples each bit in the train a plurality of times and provides a comparison signal in response to a predetermined number of correlations between the samples and a stored word, an analog to digital converter including signal conditioning means having first and second modes of operations for converting a received analog signal to a digital signal in both modes of operation and inserting periodic error pulses in the digital signal in the first mode of operation and switch means coupled to the signal conditioning means and the detector for switching the signal conditioning means between the first and second modes of operation in response to a comparison signal from the detector.
    Type: Grant
    Filed: May 7, 1975
    Date of Patent: February 1, 1977
    Assignee: Motorola, Inc.
    Inventors: Kermit Myles Beseke, James Robert Johannsen, Ronald Howard Chapman