E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 47/12 (2006.01) G01V 11/00 (2006.01)
Patent
CA 2433661
An apparatus and method for reducing crosstalk and other noise sources in downhole tools is disclosed. Due to confined space in the downhole tool environment and the fact that the transmit path utilizes significantly more electrical power than the receive path, electromagnetic noise easily couples between adjacent circuitry. The specification discloses a phase- reversal element that can selectively allow the received signal to pass unaffected, or which can cause a phase reversal of the received signal. A digital signal processor samples the received signal, which after receipt but before sampling has noise induced thereon. Thereafter, the digital signal processor samples the phase reversed received signal, which likewise has the noise induced thereon after receipt but before sampling. Subtracting the first sampled signal from the second produces a resultant signal in which the noise is substantially reduced.
Emery Jamieson Llp
Halliburton Energy Services Inc.
LandOfFree
Method and apparatus employing phase cycling for reducing... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus employing phase cycling for reducing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus employing phase cycling for reducing... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1735025