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Class Information
Number: 367/46
Name: Communications, electrical: acoustic wave systems and devices > Seismic prospecting > Land-reflection type > Signal analysis and/or correction > Filters > Inverse filters
Description: Subject matter wherein the selecting or attenuating characteristics are the opposite of similar characteristics of at least some part of the acoustic wave medium or system.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8644110 Methods and systems for spurious cancellation in seismic signal detection Feb. 4, 2014
8352190 Method for analyzing multiple geophysical data sets Jan. 8, 2013
7821869 Methods of enhancing separation of primary reflection signals and noise in seismic data using radon transformations Oct. 26, 2010
7596055 Attenuating unwanted signal using interferometry techniques Sep. 29, 2009
7564740 Methods of enhancing separation of primary reflection signals and noise in seismic data using radon transformations Jul. 21, 2009
7561491 Radon transformations for removal of noise from seismic data Jul. 14, 2009
7555389 Creating an Absorption Parameter Model Jun. 30, 2009
7457195 Estimating the time of arrival of a seismic wave Nov. 25, 2008
7447114 Non-linear seismic trace matching to well logs Nov. 4, 2008
7397728 Method for processing a record of seismic traces Jul. 8, 2008
7382682 Processing seismic data Jun. 3, 2008
6788619 Concentrating seismic energy in a selected target point in an underground formation Sep. 7, 2004
6747915 Seismic imaging a subsurface formation Jun. 8, 2004
6731568 Seismic prospecting method using converted wave processing May. 4, 2004
6614717 Time-lapse seismic using nonlinear seismic imaging Sep. 2, 2003
6603707 Method of reducing harmonic noise in vibroseis operations Aug. 5, 2003
6438069 Method for time lapse reservoir monitoring Aug. 20, 2002
6246637 Method and system for combining three component seismic data Jun. 12, 2001
6049507 Method and apparatus for correcting effects of ship motion in marine seismology measurements Apr. 11, 2000
6041018 Method for correcting amplitude and phase differences between time-lapse seismic surveys Mar. 21, 2000
6038197 Efficient inversion of near singular geophysical signals Mar. 14, 2000
5995446 Method of conducting drilling operations using vertical seismic profiles Nov. 30, 1999
5991238 Weighted backus filter method of combining dual sensor traces Nov. 23, 1999
5986974 Method for geophysical processing and interpretation using seismic trace difference for analysis and display Nov. 16, 1999
5970023 Reducing aliasing artifacts in seismic data processing using sharpened (TAU-P-Q) transforms Oct. 19, 1999
5963507 Method for improving the accuracy of ocean bottom reflectivity estimations using the inverse backus filter Oct. 5, 1999
5901112 Signal energy enhancement for seismic exploration May. 4, 1999
5850622 Time-frequency processing and analysis of seismic data using very short-time fourier transforms Dec. 15, 1998
5825716 Method of reverberation removal from seismic data and removal of dual sensor coupling errors Oct. 20, 1998
5771203 Seismic prospection method with application of a self-deconvoluted prediction error filter Jun. 23, 1998
5719822 Seismic data radon dip moveout method Feb. 17, 1998
5715213 High fidelity vibratory source seismic method using a plurality of vibrator sources Feb. 3, 1998
5703833 One step inversion/separation scheme using a plurality of vibrator sources Dec. 30, 1997
5638338 Seismic processing apparatus and method Jun. 10, 1997
5521881 Method of processing seismic data having multiple reflection noise May. 28, 1996
5481503 Apparatus for and method of adaptively processing sonar data Jan. 2, 1996
5400299 Seismic vibrator signature deconvolution Mar. 21, 1995
5384752 Method for correcting a seismic source pulse waveform Jan. 24, 1995
5349527 Method of seismic time migration using a massively parallel computer Sep. 20, 1994
5253217 Method for seismic exploration including compensation for near surface effects Oct. 12, 1993
5237538 Method for removing coherent noise from an array of seismic traces Aug. 17, 1993
5173879 Surface-consistent minimum-phase deconvolution Dec. 22, 1992
5051963 Process for cancelling stationary sinusoidal noise in seismic data Sep. 24, 1991
5010976 Characterization of the full elastic effect of the near surface on seismic waves Apr. 30, 1991
5010526 Method of digital filtering Apr. 23, 1991
4992995 Methods for attenuating noise in seismic data Feb. 12, 1991
4967401 Method of acquiring and interpreting seismic data to obtain lithological parameters Oct. 30, 1990
4922362 Methods for deconvolution of unknown source signatures from unknown waveform data May. 1, 1990
4910716 Suppression of coherent noise in seismic data Mar. 20, 1990
4853903 Method and apparatus for removing sinusoidal noise from seismic data Aug. 1, 1989

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