Circuit for echo and noise suppression of accoustic signals tran

Details Circuit for echo and noise suppression of accoustic signals tran Circuit for echo and noise suppression of accoustic signals tran

1992-03-24

1993-12-28

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Wellbore telemetering

Through drill string or casing

3408544, G01V 140

Patent

active

052746062

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.

REFERENCES:
patent: 3852708 (1974-12-01), Doolittle et al.
patent: 4215425 (1980-07-01), Waggener
patent: 4590593 (1986-05-01), Rodney
patent: 5128902 (1992-07-01), Spinnler

Affiliated with

Also associated with

Rating

Circuit for echo and noise suppression of accoustic signals tran does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit for echo and noise suppression of accoustic signals tran, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit for echo and noise suppression of accoustic signals tran will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1548732