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公开(公告)号：AT293256T
公开(公告)日：2005-04-15
申请号：AT01901951
申请日：2001-01-10
Applicant: INPUT OUTPUT INC
Inventor： DOWNEY JOHN C JR , KRUSE RALPH , BISHOP ALLEN J , BYERLY KENT A
Abstract: A two-conductor bidirectional digital telemetry interface between a seismic sensor acquisition/conversion module and a seismic data collection module. The data collection module is configured as a master electronics device and the sensor acquisition/conversion module is configured as a slave electronics device in the telemetry system. The master device provides power to the slave device over the two conductors. The master device transmits portions of commands to the slave device at a first time and the slave device transmits portions of a digital seismic data packet to the master at a different second time in a fixed-duration frame. The frames are transmitted at regular intervals. The outbound commands and inbound data are encoded by block codes. A phase-locked loop in the slave is locked to a master clock in the master by deriving a clock and a sync point from the block-coded commands it receives from the master. The block code representing each command bit minimizes dc drift and provides a level transition in the command that can be used to maintain synchronism between master and slave.
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公开(公告)号：NO20023346L
公开(公告)日：2002-09-10
申请号：NO20023346
申请日：2002-07-11
Applicant: INPUT OUTPUT INC
Inventor： BYERLY KENT A , DOWNEY JR JOHN C , KRUSE RALPH , BISHOP ALLEN J
Abstract: A two-conductor bidirectional digital telemetry interface between a seismic sensor acquisition/conversion module and a seismic data collection module. The data collection module is configured as a master electronics device and the sensor acquisition/conversion module is configured as a slave electronics device in the telemetry system. The master device provides power to the slave device over the two conductors. The master device transmits portions of commands to the slave device at a first time and the slave device transmits portions of a digital seismic data packet to the master at a different second time in a fixed-duration frame. The frames are transmitted at regular intervals. The outbound commands and inbound data are encoded by block codes. A phase-locked loop in the slave is locked to a master clock in the master by deriving a clock and a sync point from the block-coded commands it receives from the master. The block code representing each command bit minimizes dc drift and provides a level transition in the command that can be used to maintain synchronism between master and slave.
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公开(公告)号：NO993249L
公开(公告)日：1999-08-26
申请号：NO993249
申请日：1999-06-29
Applicant: INPUT OUTPUT INC
Inventor： CARROLL PAUL ELLINGTON , JAMES III ROY WILSON , BEDNAR EUGENE DAVID , RICE CHARLES GEOFFREY , BYERLY KENT A
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.
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公开(公告)号：CA2397054C
公开(公告)日：2009-10-13
申请号：CA2397054
申请日：2001-01-10
Applicant: INPUT OUTPUT INC
Inventor： BISHOP ALLEN J , BYERLY KENT A , KRUSE RALPH , DOWNEY JOHN C JR
Abstract: A two-conductor bidirectional digital telemetry interface between a seismic sensor acquisition/conversion module (40) and a seismic data collection module (20). The data collection module i s configured as a master electronics device and the sensor acquisition/conversion module is configured as a slave electronics device in the telemetry system. The master device provides power to the slave device over the two conductors (36). The master device transmits portions of a digital seismic data packet to the master at a different second time in a fixed-duration frame. The frames are transmitted at regular intervals. The outbound commands and inbound data are encoded by block codes. A phase-locked loop (54) in the slave is locked to a master clock (35) m the master by deriving a clock and a sync point from the block-coded commands it receiv es from the master. The block code representing each command bit minimizes de drift and provides a level transition in the comman d that can be used to maintain synchronism between master and slave.
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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
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 .
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Patent Agency Ranking
公开(公告)号：CA2397054A1
公开(公告)日：2001-07-19
申请号：CA2397054
申请日：2001-01-10
Applicant: INPUT OUTPUT INC
Inventor： BYERLY KENT A , BISHOP ALLEN J , DOWNEY JOHN C JR , KRUSE RALPH
Abstract: A two-conductor bidirectional digital telemetry interface between a seismic sensor acquisition/conversion module (40) and a seismic data collection modu le (20). The data collection module is configured as a master electronics devic e and the sensor acquisition/conversion module is configured as a slave electronics device in the telemetry system. The master device provides power to the slave device over the two conductors (36). The master device transmit s portions of a digital seismic data packet to the master at a different secon d time in a fixed-duration frame. The frames are transmitted at regular intervals. The outbound commands and inbound data are encoded by block codes . A phase-locked loop (54) in the slave is locked to a master clock (35) in th e master by deriving a clock and a sync point from the block-coded commands it receives from the master. The block code representing each command bit minimizes dc drift and provides a level transition in the command that can b e used to maintain synchronism between master and slave.
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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
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.
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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
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.
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公开(公告)号：NO20023346A
公开(公告)日：2002-09-10
申请号：NO20023346
申请日：2002-07-11
Applicant: INPUT OUTPUT INC
Inventor： BYERLY KENT A , DOWNEY JR JOHN C , KRUSE RALPH , BISHOP ALLEN J
CPC classification number: G01V1/22
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公开(公告)号：NO993249D0
公开(公告)日：1999-06-29
申请号：NO993249
申请日：1999-06-29
Applicant: INPUT OUTPUT INC
Inventor： CARROLL PAUL ELLINGTON , JAMES III ROY WILSON , BEDNAR EUGENE DAVID , RICE CHARLES GEOFFREY , BYERLY KENT A
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.
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