Patents by Inventor George H. McLaughlin

George H. McLaughlin 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).

  • Coherent noise cancelling filter
    Patent number: 4344150
    Abstract: Apparatus and method for removing coherent noise from an electrical signal, such as powerline noise, and operating in real time. An operational amplifier with digital filter and a low pass filter in the feedback loop, with the digital filter providing a feedback signal corresponding to the coherent noise in the absence of the desired signal. In the preferred embodiment, an integrating type digital filter with digital memory, and alternative embodiments with condenser memory.
    Type: Grant
    Filed: July 10, 1980
    Date of Patent: August 10, 1982
    Assignee: Newmont Mining Corporation
    Inventor: George H. McLaughlin