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:
-
- P.O. Box 676, Cedar Crest, NM 87008
- 12911 Kachima Place N.E., Apt. A, Albuquerque, NM 37112
- Issue Date:
- Research Org.:
- AT&T
- 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)
- Patent Classifications (CPCs):
-
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
- 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 = {Fri Jan 01 00:00:00 EST 1993},
month = {Fri Jan 01 00:00:00 EST 1993}
}
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