Resources Contact Us Home
Browse by Category: Main > Communications
Class Information
Number: 367/66
Name: Communications, electrical: acoustic wave systems and devices > Seismic prospecting > Land-reflection type > Signal analysis and/or correction > Gain control > Analog/digital compatible systems
Description: Subject matter which may be applicable to the amplification or attenuation of either digital or analog signals.

Patents under this class:

Patent Number Title Of Patent Date Issued
6075752 Method for exploring an environment with a complex tectonics Jun. 13, 2000
5051962 Computerized truck instrumentation system Sep. 24, 1991
4727521 Seismic amplifier means and method Feb. 23, 1988
4725950 Marine seismic signal processor with D.C. offset compensation method Feb. 16, 1988
4706226 Seismic line amplifier Nov. 10, 1987
4616349 Analog-to-digital converter for seismic exploration using delta modulation Oct. 7, 1986
4610006 Automatic control system for acoustic logging Sep. 2, 1986
4587642 Seismic data enhancement method and apparatus May. 6, 1986
4581725 Method and system for gain selection Apr. 8, 1986
4527148 Analog-digital converter Jul. 2, 1985
4412207 Digital induction logging tool including a floating point A/D Oct. 25, 1983
4338589 Autocalibration of compressed A/D converter Jul. 6, 1982
4297745 Gain ranging amplifier Oct. 27, 1981
4194163 Floating point amplifier means and method Mar. 18, 1980
3972020 Transformerless input for seismic data acquisition system Jul. 27, 1976

  Recently Added Patents
Heating pad
Facial recognition using a sphericity metric
Data converter with configurable functions
Optical coherence tomography with multiple sample arms
Frequency offset estimation apparatus and method of OFDM system
Method of manufacturing acrylic film, and acrylic film
Control method of LPI lamp for LPI vehicle and logic therefor
  Randomly Featured Patents
Modifying agent for plastic fat
Electromagnetic motion sensor
Centering detection system for an apparatus for playing optically readable record carriers
Compressed air motor
Method of making assemblies having stacked semiconductor chips
Combined lamp base and security system
Hypoglycemic hydroxyurea derivatives
Injection molded resin gear and injection molded resin rotating body
Linear step motor type driving apparatus for driving a longitudinally movable body
Hybrid electrical power source combining stirling engine driven alternator with supplementing electrical energy storage