Inventor

BEAUDUCEL CLAUDE

FR40 patents

Patents

40 patents

US5363094ANov 8, 1994

Stationary system for the active and/or passive monitoring of an underground deposit

INST FRANCAIS DU PETROLE295 citations97

US5206835AApr 27, 1993

Modular device for reception, the acquisition and the transmission of seismic data with several multiplexing levels

INST FRANCAIS DU PETROLE59 citations96

US4996675AFeb 26, 1991

Signal sensor insensitive to static pressure variations

INST FRANCAIS DU PETROLE28 citations92

US4990913AFeb 5, 1991

Analog to digital converter for highly dynamic signals, using a variable reference voltage to floating decimal point output

INST FRANCAIS DU PETROLE26 citations92

US5639667AJun 17, 1997

Process and device for monitoring by periodic excitation a flow of particles in a pipe

INST FRANCAIS DU PETROLE45 citations91

US5465270ANov 7, 1995

Device for data transmission between seismic data acquisition devices and a recording device

INST FRANCAIS DU PETROLE24 citations82

US4352070ASep 28, 1982

Sample-and-hold unit

INST FRANCAIS DU PETROLE25 citations82

US4787069ANov 22, 1988

Device usable for offshore seismic prospection for receiving seismic signals and transmitting them to a central control and recording system

INST FRANCAIS DU PETROLE24 citations79

US4984222AJan 8, 1991

Piezoelectric sensor comprising at least one pair of flexible sensitive elements of great length

INST FRANCAIS DU PETROLE21 citations78

US4015242AMar 29, 1977

Device for coupling several data processing units to a single memory

INST FRANCAIS DU PETROLE21 citations78

US6239877B1May 29, 2001

Polarized interferential measurement wherein the modulation signal is adjusted to be equal to the duration of the measurement window

INST FRANCAIS DU PETROLE13 citations74

US5550785AAug 27, 1996

Mobile seismic system of great length for wells

INST FRANCAIS DU PETROLE14 citations74

US5204843AApr 20, 1993

Integrated reception system of great length for sensing acoustic waves

INST FRANCAIS DU PETROLE7 citations74

US5093660AMar 3, 1992

Acquisition method and device allowing to precisely digitize analog signals

INST FRANCAIS DU PETROLE10 citations74

US5077698ADec 31, 1991

Method and device for the high-rate transmission of data following a quasi-asynchronous mode

INST FRANCAIS DU PETROLE12 citations74

US4523191AJun 11, 1985

Device for interconnecting a series of data acquisition apparatuses to a remote receiving and recording system

INST FRANCAIS DU PETROLE11 citations74

US4426624AJan 17, 1984

Device and method for amplifying and sampling multiplexed signals

INST FRANCAIS DU PETROLE7 citations74

US4365320ADec 21, 1982

Device for determining the instant of reception of an acoustic wave

INST FRANCAIS DU PETROLE9 citations74

US5549008AAug 27, 1996

Device and method for characterizing a medium comprising at least a conductive part

INST FRANCAIS DU PETROLE17 citations73

US5483344AJan 9, 1996

Process and apparatus for performing differential refractive index measurements using interference of modulated light beams passing through reference and test samples

INST FRANCAIS DU PETROLE18 citations73

US5243337ASep 7, 1993

Process and device for optimizing signal transmission rates on multifunctional well cables

INST FRANCAIS DU PETROLE13 citations72

US6546810B1Apr 15, 2003

Process and device for measuring the velocity of flow of a fluid stream

INST FRANCAIS DU PETROLE10 citations71

US4774474ASep 27, 1988

Device for amplifying and sampling multiplexed analog signals

INST FRANCAIS DU PETROLE12 citations71

US4768173AAug 30, 1988

Pressure wave sensing device of the piezoelectric type with continuous structure and a method of manufacturing same

INST FRANCAIS DU PETROLE13 citations71

US4918666AApr 17, 1990

Tubular piezo-electric sensor with high sensitivity

INST FRANCAIS DU PETROLE14 citations70

US4007444AFeb 8, 1977

Microprogrammed computing device

INST FRANCAIS DU PETROLE7 citations70

US4503526AMar 5, 1985

Device for water inflow detection inside a seismic streamer

INST FRANCAIS DU PETROLE16 citations69

US4378527AMar 29, 1983

Device for amplifying and sampling analog signals

INST FRANCAIS DU PETROLE5 citations63

US4801838AJan 31, 1989

Method and device for improving the sensitivity and the signal to noise ratio of piezo-electric transducers having a plurality of sensors combined in parallel

INST FRANCAIS DU PETROLE4 citations60

US4779055AOct 18, 1988

Device for amplifying and sampling high dynamic signals

INST FRANCAIS DU PETROLE5 citations60

US4636992AJan 13, 1987

Device for supplying electric power to electronic apparatuses of an acoustic wave receiving assembly of great length

INST FRANCAIS DU PETROLE4 citations60

US6356511B1Mar 12, 2002

Low distortion ratio hydrophone

INST FRANCAIS DU PETROLE3 citations59

US7140238B2Nov 28, 2006

Method for determining the composition of a fluid

INST FRANCAIS DU PETROLE6 citations58

US5426982AJun 27, 1995

Process and device for controlling a flow of particles in a pipe

INST FRANCAIS DU PETROLE4 citations58

US4736346AApr 5, 1988

System for interconnecting elements of a receiving device of great length, whereby the number of recording traces corresponding to the sensed signals can be doubled

INST FRANCAIS DU PETROLE1 citations50

US4983925AJan 8, 1991

Signal sampling device for minimizing the errors effecting successively stored signal samples

INST FRANCAIS DU PETROLE0 citations42

US5966408AOct 12, 1999

Method and device for regenerating by maxima detection, a clock signal punctuating the transmission of received digitized signals

INST FRANCAIS DU PETROLE0 citations39

BEAUDUCEL CLAUDE

Patents

Stationary system for the active and/or passive monitoring of an underground deposit

Modular device for reception, the acquisition and the transmission of seismic data with several multiplexing levels

Signal sensor insensitive to static pressure variations

Analog to digital converter for highly dynamic signals, using a variable reference voltage to floating decimal point output

Process and device for monitoring by periodic excitation a flow of particles in a pipe

Process and device for the digitized transmission of signals

Increased sensitivity piezoelectric hydrophones

Piezo-electric transducer comprising several coaxial sensitive elements

Device for data transmission between seismic data acquisition devices and a recording device

Sample-and-hold unit

Device usable for offshore seismic prospection for receiving seismic signals and transmitting them to a central control and recording system

Piezoelectric sensor comprising at least one pair of flexible sensitive elements of great length

Device for coupling several data processing units to a single memory

Polarized interferential measurement wherein the modulation signal is adjusted to be equal to the duration of the measurement window

Mobile seismic system of great length for wells

Integrated reception system of great length for sensing acoustic waves

Acquisition method and device allowing to precisely digitize analog signals

Method and device for the high-rate transmission of data following a quasi-asynchronous mode

Device for interconnecting a series of data acquisition apparatuses to a remote receiving and recording system

Device and method for amplifying and sampling multiplexed signals

Device for determining the instant of reception of an acoustic wave

Device and method for characterizing a medium comprising at least a conductive part

Process and apparatus for performing differential refractive index measurements using interference of modulated light beams passing through reference and test samples

Process and device for optimizing signal transmission rates on multifunctional well cables

Process and device for measuring the velocity of flow of a fluid stream

Device for amplifying and sampling multiplexed analog signals

Pressure wave sensing device of the piezoelectric type with continuous structure and a method of manufacturing same

Tubular piezo-electric sensor with high sensitivity

Microprogrammed computing device

Device for water inflow detection inside a seismic streamer

Device for amplifying and sampling analog signals

Method and device for improving the sensitivity and the signal to noise ratio of piezo-electric transducers having a plurality of sensors combined in parallel

Device for amplifying and sampling high dynamic signals

Device for supplying electric power to electronic apparatuses of an acoustic wave receiving assembly of great length

Low distortion ratio hydrophone

Method for determining the composition of a fluid

Process and device for controlling a flow of particles in a pipe

System for interconnecting elements of a receiving device of great length, whereby the number of recording traces corresponding to the sensed signals can be doubled

Signal sampling device for minimizing the errors effecting successively stored signal samples

Method and device for regenerating by maxima detection, a clock signal punctuating the transmission of received digitized signals