Patents by Inventor Richard E. DuPuy, Jr.

Richard E. DuPuy, Jr. 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).

  • Non-linear amplifier systems for repetitive signals
    Patent number: 4546321
    Abstract: A non-linear amplifier system for a repetitive input signal includes a first amplifier stage for amplifying low level input signals, including noise, in a linear manner and higher level input signals in a non-linear manner. A sampling circuit smooths the output from the first amplifier stage and thereby reduces the amplitude of low level random noise signals. A second amplifier stage receives the output from the sampling circuit and amplifies in a non-linear manner signals corresponding to low level input signals of the first amplifier stage and amplifies in linear manner signals corresponding to higher level input signals of the first amplifier stage. Consequently, low level input signals can be amplified in non-linear manner without introducing substantial errors due to non-linear amplification of low level random noise signals.
    Type: Grant
    Filed: June 13, 1983
    Date of Patent: October 8, 1985
    Assignee: Tektronix, Inc.
    Inventors: Glenn Bateman, Richard E. DuPuy, Jr.