公开(公告)号：AU7120887A

公开(公告)日：1987-09-28

申请号：AU7120887

申请日：1987-02-11

Applicant: INPUT OUTPUT INC

Inventor： ABRAMS MICHAEL LEE ,  RICE CHARLES GEOFFREY ,  CARROLL PAUL E ,  JAMES ROY WILSON III

IPC: G01V1/28 ,  G01V1/36

Abstract: The system for suppressing an ambient noise signal which comtaminates a desired signal includes a noise pickup detector for detecting the ambient noise signal. A noise discriminator processes the detected noise signal into noise data. A reference noise generator converts the noise data into a reference noise signal. The noise generator automatically adjusts the reference noise signal to correspond with changes in the noise signal as it is being detected. A filter filters the reference noise signal into an error signal which is adapted to remove the noise signal from the contaminated signal. A cross-correlator cross-correlates the contaminated signal with the reference noise signal and adjusts the filter to produce the required error signal.

公开(公告)号：CA2307557C

公开(公告)日：2007-07-17

申请号：CA2307557

申请日：1998-10-29

Applicant: INPUT OUTPUT INC

Inventor： SCHULER KARL JOSEPH ,  CARROLL PAUL ELLINGTON ,  JAMES ROY WILSON III

IPC: G01V1/38 ,  G01N1/02 ,  G01S19/19 ,  G01V1/20 ,  H02J9/06

Abstract: An improved bottom cable for a seismic marine data acquisition system (10). The bottom cable (30) includes a cable section (30b) having a bus (48). The cable, along with the cable section and bus, are used to electrically connect a master control unit (40) to first and second modules (32b and 32c), respectively. The bus (48) includes first and second switches (48b and 48c), respectively, located near opposite ends of the bus. In this way, if a leak (R1) occurs in the bus, the first and second switches can be opened, thereby electrically isolating the bus and stopping the leak.

公开(公告)号：AU584061B2

公开(公告)日：1989-05-11

申请号：AU7120887

申请日：1987-02-11

Applicant: INPUT OUTPUT INC

Inventor： ABRAMS MICHAEL LEE ,  RICE CHARLES GEOFRREY ,  CARROLL PAUL E ,  JAMES ROY WILSON III

IPC: G01V1/28 ,  G01V1/36

Abstract: The system for suppressing an ambient noise signal which comtaminates a desired signal includes a noise pickup detector for detecting the ambient noise signal. A noise discriminator processes the detected noise signal into noise data. A reference noise generator converts the noise data into a reference noise signal. The noise generator automatically adjusts the reference noise signal to correspond with changes in the noise signal as it is being detected. A filter filters the reference noise signal into an error signal which is adapted to remove the noise signal from the contaminated signal. A cross-correlator cross-correlates the contaminated signal with the reference noise signal and adjusts the filter to produce the required error signal.

公开(公告)号：CA2276361C

公开(公告)日：2007-07-17

申请号：CA2276361

申请日：1998-10-29

Applicant: INPUT OUTPUT INC

Inventor： BYERLY KENT A ,  BEDNAR EUGENE DAVID ,  JAMES ROY WILSON III ,  CARROLL PAUL ELLINGTON ,  RICE CHARLES GEOFFREY

IPC: G01V1/38 ,  G01V1/18 ,  G01V1/20 ,  G01V1/28

Abstract: A seismic ocean bottom posi-tioning device includes a series of seismic stations (14) spaced apart at a predetermined interval along a ca-ble. Each station (14) includes a hydrophone, a motion sensing device such as a geophone (22) and an acous-tic positioning circuit (24). A pream-plifier is coupled to a seismic channel. The hydrophone (20) is also coupled to the seismic channel. An acoustic chan-nel is also coupled to the preamplifier and coupled to the hydrophone .

公开(公告)号：AU1293299A

公开(公告)日：1999-05-24

申请号：AU1293299

申请日：1998-10-29

Applicant: INPUT OUTPUT INC

Inventor： CARROLL PAUL ELLINGTON ,  SCHULER KARL JOSEPH ,  JAMES ROY WILSON III

IPC: G01V1/20 ,  G01V13/00 ,  G01V1/38 ,  G01V1/16

Abstract: An improved bottom cable for a seismic marine data acquisition system 10. The bottom cable 30 includes a cable section 30b having a bus 48. The cable, along with the cable section and bus, are used to electrically connect a master control unit 40 to first and second modules 32b and 32c, respectively. The bus 48 includes first and second switches 48b and 48c, respectively, located near opposite ends of the bus. In this way, if a leak R1 occurs in the bus, the first and second switches can be opened, thereby electrically isolating the bus and stopping the leak.

公开(公告)号：AU1286999A

公开(公告)日：1999-05-24

申请号：AU1286999

申请日：1998-10-29

Applicant: INPUT OUTPUT INC

Inventor： CARROLL PAUL ELLINGTON ,  JAMES ROY WILSON III ,  BEDNAR EUGENE DAVID ,  RICE CHARLES GEOFFREY ,  BYERLY KENT A

IPC: G01V1/20 ,  G01V1/38 ,  G01V1/28

Abstract: A seismic ocean bottom positioning device include a series of seismic stations spaced apart at a predetermined interval along a cable. Each station includes a hydrophone, a motion sensing device such as a geophone and an acoustic positioning circuit. A preamplifier is coupled to a seismic channel. The hydrophone is also coupled to the seismic channel. An acoustic channel is also coupled to the preamplifier and coupled to the hydrophone.

公开(公告)号：CA2276361A1

公开(公告)日：1999-05-14

申请号：CA2276361

申请日：1998-10-29

Applicant: INPUT OUTPUT INC

Inventor： RICE CHARLES GEOFFREY ,  CARROLL PAUL ELLINGTON ,  JAMES ROY WILSON III ,  BEDNAR EUGENE DAVID ,  BYERLY KENT A

IPC: G01V1/20 ,  G01V1/38 ,  G01V1/28

Abstract: A seismic ocean bottom positioning device includes a series of seismic stations (14) spaced apart at a predetermined interval along a cable. Each station (14) includes a hydrophone, a motion sensing device such as a geophone (22) and an acoustic positioning circuit (24). A preamplifier is coupled to a seismic channel. The hydrophone (20) is also coupled to the seismic channel. An acoustic channel is also coupled to the preamplifier and coupled to the hydrophone.

公开(公告)号：EP0958511A4

公开(公告)日：2004-06-09

申请号：EP98956316

申请日：1998-10-29

Applicant: INPUT OUTPUT INC

Inventor： CARROLL PAUL ELLINGTON ,  JAMES ROY WILSON III ,  BEDNAR EUGENE DAVID ,  RICE CHARLES GEOFFREY ,  BYERLY KENT A

IPC: G01V1/20 ,  G01V1/38 ,  G01V1/18

CPC classification number: G01V1/3835 ,  G01V1/201

Abstract: A seismic ocean bottom positioning device includes a series of seismic stations (14) spaced apart at a predetermined interval along a cable. Each station (14) includes a hydrophone, a motion sensing device such as a geophone (22) and an acoustic positioning circuit (24). A preamplifier is coupled to a seismic channel. The hydrophone (20) is also coupled to the seismic channel. An acoustic channel is also coupled to the preamplifier and coupled to the hydrophone.