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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











 
 
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