Patents by Inventor C. Ernest Wales

C. Ernest Wales 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 apparatus for seismic exploration using non-linear sweeps
    Patent number: 4680741
    Abstract: A method and apparatus for generating a nonlinear sweep signal to be supplied to a seismic vibrator. A seismic sweep time is determined and is divided into a plurality of preselected time intervals. The rate of change of the frequency is determined for each of these time intervals to generate an output signal of a desired shape. The rate of change of the frequency for each time interval is calculated in response to the starting frequency of the sweep, the range of the sweep, the sweep time, and the desired shape of the output signal. The rate of change is supplied to a frequency generator which generates a signal to be supplied to the vibrator.
    Type: Grant
    Filed: September 29, 1986
    Date of Patent: July 14, 1987
    Assignee: Geosource, Inc.
    Inventors: C. Ernest Wales, Mitchell F. Peterson