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Class Information
Number: 367/43
Name: Communications, electrical: acoustic wave systems and devices > Seismic prospecting > Land-reflection type > Signal analysis and/or correction > Filters
Description: Subject matter including means to attenuate and/or separate selected signals or constituent parts of complex signals.










Sub-classes under this class:

Class Number Class Name Patents
367/45 Adaptive filters 75
367/44 Comb filters 13
367/46 Inverse filters 79


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8675447 Device and method for de-blending simultaneous shooting data Mar. 18, 2014
8660798 System and method for attenuating aliasing in seismic data caused by acquisition geometry Feb. 25, 2014
8644110 Methods and systems for spurious cancellation in seismic signal detection Feb. 4, 2014
8639443 Microseismic event monitoring technical field Jan. 28, 2014
8619499 Systems and methods for modeling 3D geological structures Dec. 31, 2013
8614930 System and method for seismic data modeling and migration Dec. 24, 2013
8614578 Attenuation of electromagnetic signals passing through conductive material Dec. 24, 2013
8612158 Seismic interference noise elimination Dec. 17, 2013
8520469 Sensor assembly having a seismic sensor, pressure sensor, and processor to apply first and second digital filters Aug. 27, 2013
8483009 Characterizing spatial variability of surface waves in seismic processing Jul. 9, 2013
8472282 Method and apparatus for acoustic data transmission in a subterranean well Jun. 25, 2013
8274859 Systems and methods for modeling 3D geological structures Sep. 25, 2012
8243548 Extracting SV shear data from P-wave seismic data Aug. 14, 2012
8223587 Full wavefield inversion using time varying filters Jul. 17, 2012
8218394 Method for imaging the earths subsurface using passive seismic interferometry and adaptive velocity filtering Jul. 10, 2012
8208341 Processing of combined surface and borehole seismic data Jun. 26, 2012
8199611 Deriving tilt-corrected seismic data in a multi-axis seismic sensor module Jun. 12, 2012
8139440 Spectral conditioning for surface seismic data Mar. 20, 2012
7953556 Geophone noise attenuation and wavefield separation using a multi-dimensional decomposition technique May. 31, 2011
7889598 Method of seismic processing for the decomposition of a wavefield into harmonic components and applications to the determination of angular gathers of reflectivity Feb. 15, 2011
7869304 Method and apparatus for pre-inversion noise attenuation of seismic data Jan. 11, 2011
7843766 Systems and methods for monitoring time-dependent subsurface changes Nov. 30, 2010
7821869 Methods of enhancing separation of primary reflection signals and noise in seismic data using radon transformations Oct. 26, 2010
7791980 Interpolation and extrapolation method for seismic recordings Sep. 7, 2010
7680600 Method, system and apparatus for formation tester data processing Mar. 16, 2010
7660200 Method for coherence-filtering of acoustic array signal Feb. 9, 2010
7636051 Status monitor apparatus Dec. 22, 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
7558154 Method of and apparatus for processing seismic data Jul. 7, 2009
7551515 Source signature deconvolution method Jun. 23, 2009
7508734 Method and apparatus for acoustic data transmission in a subterranean well Mar. 24, 2009
7447114 Non-linear seismic trace matching to well logs Nov. 4, 2008
7436734 Shaped high frequency vibratory source Oct. 14, 2008
7433265 Converted wave energy removal from seismic data Oct. 7, 2008
7382682 Processing seismic data Jun. 3, 2008
7382685 Method and apparatus for filtering irregularly sampled data Jun. 3, 2008
7366054 Tau-P filters for removal of noise from seismic data Apr. 29, 2008
7239578 Removal of noise from seismic data using radon transformations Jul. 3, 2007
6987706 Removal of noise from seismic data using high resolution radon transformations Jan. 17, 2006
6961283 Adaptive filtering apparatus and method for seismic data acquisition Nov. 1, 2005
6956790 Borehole sonic data processing method Oct. 18, 2005
6912467 Method for estimation of size and analysis of connectivity of bodies in 2- and 3-dimensional data Jun. 28, 2005
6882938 Method for separating seismic signals from two or more distinct sources Apr. 19, 2005
6856575 Monitoring a microseismic event Feb. 15, 2005
6836448 System and method for seismic wavefield separation Dec. 28, 2004
RE38567 Apparatus and method for self adjusting downlink signal communication Aug. 24, 2004
6757217 Method for time-aligning multiple offset seismic data volumes Jun. 29, 2004
6691073 Adaptive state space signal separation, discrimination and recovery Feb. 10, 2004
6674689 Method for morphologic analysis of seismic objects Jan. 6, 2004

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