Patents by Inventor Pierre L. Goupillaud

Pierre L. Goupillaud 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).

  • Signal representation generator
    Patent number: 4599567
    Abstract: An apparatus and method for generating a representation of an arbitrary signal wherein the signal is represented as a sum of reference signals derived from a standard wavelet defined on a grid in the frequency-time plane. The apparatus comprises a plurality of octave circuits, each octave circuit, in turn, comprising a plurality of band circuits that divide a frequency range covering the spectrum of the signal into equal intervals of logarithm of frequency. Each band circuit comprises a bandpass filter to select a frequency component of the signal and a correlator to correlate the signal component with a reference signal derived from a standard wavelet to produce a series of correlation values representing the signal for recordation in response to clock pulses received by the octave circuits.
    Type: Grant
    Filed: July 29, 1983
    Date of Patent: July 8, 1986
    Assignee: Enelf Inc.
    Inventors: Pierre L. Goupillaud, Jean P. Morlet, Alexandre Grossmann
  • Simultaneous use of pseudo-random control signals in vibrational exploration methods
    Patent number: 4168485
    Abstract: A method for deriving seismic information through the simultaneous operation of a plurality of vibrational seismic energy source systems such that the information produced by each source system may be separated from the combined recorded information.
    Type: Grant
    Filed: June 30, 1976
    Date of Patent: September 18, 1979
    Assignee: Continental Oil Company
    Inventors: Charles E. Payton, Kenneth H. Waters, Pierre L. Goupillaud