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Title: Circuit for echo and noise suppression of accoustic signals transmitted through a drill string

Abstract

An electronic circuit for digitally processing analog electrical signals produced by at least one acoustic transducer is presented. In a preferred embodiment of the present invention, a novel digital time delay circuit is utilized which employs an array of First-in-First-out (FiFo) microchips. Also, a bandpass filter is used at the input to this circuit for isolating drill string noise and eliminating high frequency output.

Inventors:
 [1];  [2]
  1. (P.O. Box 676, Cedar Crest, NM 87008)
  2. (12911 Kachima Place N.E., Apt. A, Albuquerque, NM 37112)
Issue Date:
Research Org.:
AT & T CORP
OSTI Identifier:
869102
Patent Number(s):
5274606
Assignee:
Drumheller, Douglas S. (P.O. Box 676, Cedar Crest, NM 87008);Scott, Douglas D. (12911 Kachima Place N.E., Apt. A, Albuquerque, NM 37112) SNL
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
circuit; echo; noise; suppression; accoustic; signals; transmitted; drill; string; electronic; digitally; processing; analog; electrical; produced; acoustic; transducer; preferred; embodiment; novel; digital; time; delay; utilized; employs; array; first-in-first-out; fifo; microchips; bandpass; filter; input; isolating; eliminating; frequency; output; frequency output; analog electrical; acoustic transducer; electronic circuit; bandpass filter; electrical signals; time delay; electrical signal; preferred embodiment; drill string; pass filter; signals produced; signals transmitted; noise suppression; delay circuit; /367/340/

Citation Formats

Drumheller, Douglas S., and Scott, Douglas D. Circuit for echo and noise suppression of accoustic signals transmitted through a drill string. United States: N. p., 1993. Web.
Drumheller, Douglas S., & Scott, Douglas D. Circuit for echo and noise suppression of accoustic signals transmitted through a drill string. United States.
Drumheller, Douglas S., and Scott, Douglas D. Fri . "Circuit for echo and noise suppression of accoustic signals transmitted through a drill string". United States. https://www.osti.gov/servlets/purl/869102.
@article{osti_869102,
title = {Circuit for echo and noise suppression of accoustic signals transmitted through a drill string},
author = {Drumheller, Douglas S. and Scott, Douglas D.},
abstractNote = {An electronic circuit for digitally processing analog electrical signals produced by at least one acoustic transducer is presented. In a preferred embodiment of the present invention, a novel digital time delay circuit is utilized which employs an array of First-in-First-out (FiFo) microchips. Also, a bandpass filter is used at the input to this circuit for isolating drill string noise and eliminating high frequency output.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}

Patent:

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