|
Found results for
patents
1.
|
Cableless seismic acquisition with hierarchical communication protocol
Application Number |
16442162 |
Grant Number |
11269095 |
Status |
In Force |
Filing Date |
2019-06-14 |
First Publication Date |
2021-06-17 |
Grant Date |
2022-03-08 |
Owner |
Wireless Seismic, Inc. (USA)
|
Inventor |
- Elder, Keith
- Stair, Jerry Edward
- Wager, Garrick Thomas
- Kooper, Steven
- Dice, Joshua
|
Abstract
A cableless seismic acquisition system that is configured to resolve the locations of a plurality of cableless seismic acquisition units (e.g., up to 1,000,000 or more) of the system at sub-meter levels of accuracy (e.g., less than 10 cm, less than 5 cm, etc.) free of many of the limitations of existing manners of determining cableless unit locations in seismic acquisition systems. While accurately determining cableless unit locations for use in mapping underground structures of interest, the disclosed cableless seismic acquisition system also limits power demands of and ultimately power consumption by the cableless units to extend serviceable deployment time of the cableless acquisition system.
IPC Classes ?
- G01V 1/22 - Transmitting seismic signals to recording or processing apparatus
- G01V 1/24 - Recording seismic data
|
2.
|
Cableless seismic acquisition with hierarchical communication protocol
Application Number |
14699940 |
Grant Number |
10107926 |
Status |
In Force |
Filing Date |
2015-04-29 |
First Publication Date |
2018-10-23 |
Grant Date |
2018-10-23 |
Owner |
Wireless Seismic, Inc. (USA)
|
Inventor |
- Elder, Keith
- Stair, Jerry Edward
- Wager, Garrick Thomas
- Kooper, Steven
- Dice, Joshua
|
Abstract
A cableless seismic acquisition system that is configured to resolve the locations of a plurality of cableless seismic acquisition units (e.g., up to 1,000,000 or more) of the system at sub-meter levels of accuracy (e.g., less than 10 cm, less than 5 cm, etc.) free of many of the limitations of existing manners of determining cableless unit locations in seismic acquisition systems. While accurately determining cableless unit locations for use in mapping underground structures of interest, the disclosed cableless seismic acquisition system also limits power demands of and ultimately power consumption by the cableless units to extend serviceable deployment time of the cableless acquisition system.
IPC Classes ?
- G01V 1/22 - Transmitting seismic signals to recording or processing apparatus
- G01V 1/24 - Recording seismic data
|
3.
|
Wireless seismic system with phased antenna array
Application Number |
15839343 |
Grant Number |
10241221 |
Status |
In Force |
Filing Date |
2017-12-12 |
First Publication Date |
2018-08-16 |
Grant Date |
2019-03-26 |
Owner |
Wireless Seismic, Inc. (USA)
|
Inventor |
- Elder, Keith
- Prokop, Andrew T.
- Kooper, Steven
|
Abstract
Apparatuses, systems, and methods for use of directionalized antennas at a seismic module in a seismic survey array. The directionalized antenna may be selectively controlled such that the control of the transmission functionality and reception functionality are independently controlled to transmit data in and receive data from different directions. In turn, bandwidth utilization may be improved in the survey. Additionally, the directionalized antennas may allow for simultaneous transmission and reception of data in a serial data transfer line.
IPC Classes ?
- G01V 1/22 - Transmitting seismic signals to recording or processing apparatus
|
4.
|
Multimode seismic survey system
Application Number |
15456261 |
Grant Number |
10495767 |
Status |
In Force |
Filing Date |
2017-03-10 |
First Publication Date |
2017-12-14 |
Grant Date |
2019-12-03 |
Owner |
Wireless Seismic, Inc. (USA)
|
Inventor |
- Crice, Douglas B.
- Kligfield, Roy
- Elder, Keith
|
Abstract
A multimode seismic survey system is disclosed where seismic information for a given seismic survey is read out by different seismic units using different modes. Such multimode systems encompass hybrid arrays where information is read out via different output modes for a single seismic event, and other multimode arrays where seismic information is read out via different modes for different seismic events. The modes utilized in such arrays may include wireless, nodal and/or cable modes. The multimode arrays can be implemented using multimode seismic units or single mode seismic units. In any event, the multimode arrays can be utilized to achieve a combination of advantages associated with the different readout modes or to address any of various multimode mode contexts in relation to seismic surveys.
IPC Classes ?
- G01V 1/22 - Transmitting seismic signals to recording or processing apparatus
- G01V 1/24 - Recording seismic data
- G01V 1/00 - SeismologySeismic or acoustic prospecting or detecting
|
5.
|
Wireless exploration seismic system
Application Number |
15484720 |
Grant Number |
10761227 |
Status |
In Force |
Filing Date |
2017-04-11 |
First Publication Date |
2017-12-14 |
Grant Date |
2020-09-01 |
Owner |
Wireless Seismic, Inc. (USA)
|
Inventor |
- Elder, Keith
- Kooper, Steven
- Elam, David
- Crice, Douglas B.
|
Abstract
Systems and methods are provided for acquiring seismic data using a wireless network and a number of individual data acquisition modules that are configured to collect seismic data and forward data to a central recording and control system. In one implementation, a number of remote modules are arranged in lines. Base station modules receive information from the lines and relay the information to a central control and recording system. Radio links operating on multiple frequencies are used by the modules. Dynamic multiplexing technique may include advancing one or more modules in a seismic array through a multiplexing signature sequence in successive transmission periods. The multiplexing signature sequence may be random or pseudo-random. A shared multiplexing signature sequence may be used at all the modules in the seismic array. Modules belonging to a common collision domain may operate out of phase with respect to the shared multiplexing signature sequence.
IPC Classes ?
- G01V 1/22 - Transmitting seismic signals to recording or processing apparatus
|
6.
|
Seismic data relay with simultaneous transmit and receive using beamforming radio
Application Number |
15290763 |
Grant Number |
09930430 |
Status |
In Force |
Filing Date |
2016-10-11 |
First Publication Date |
2017-07-20 |
Grant Date |
2018-03-27 |
Owner |
Wireless Seismic, Inc. (USA)
|
Inventor |
Elder, Keith
|
Abstract
Apparatuses, systems, and methods for use of directionalized antennas at a seismic module in a seismic survey array to allow for simultaneous transmission and reception of data in a serial data transfer line. The directionalized antenna may be selectively controlled such that the control of the transmission functionality and reception functionality are independently controlled to transmit data in and receive data from different directions. In turn, bandwidth utilization may be improved in the survey.
IPC Classes ?
- H04Q 9/00 - Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
|
7.
|
Wireless data acquisition system and method using self-initializing wireless modules
Application Number |
14140048 |
Grant Number |
09140811 |
Status |
In Force |
Filing Date |
2013-12-24 |
First Publication Date |
2014-12-11 |
Grant Date |
2015-09-22 |
Owner |
Wireless Seismic, Inc. (USA)
|
Inventor |
- Kooper, Steven
- Elder, Keith
|
Abstract
Presented are systems and methods for deploying wireless data acquisition modules that facilitate autonomous initialization. The wireless data acquisition modules may initiate a initialization process in response to a stimulus associated with being deployed. The wireless data acquisition module may further conduct a neighbor discovery process and in turn establish a data transfer path among one or more other wireless data acquisition modules. Further, information obtained during a series of autonomous tests may be communicated during the neighbor discovery process and the establishment of the data transfer path may at least in part be based on the information obtained in the autonomous tests.
IPC Classes ?
- G01V 1/22 - Transmitting seismic signals to recording or processing apparatus
- G01V 1/00 - SeismologySeismic or acoustic prospecting or detecting
- G01V 1/16 - Receiving elements for seismic signalsArrangements or adaptations of receiving elements
|
8.
|
Multiplexing signature allocation for wireless exploration system
Application Number |
14175868 |
Grant Number |
10180510 |
Status |
In Force |
Filing Date |
2014-02-07 |
First Publication Date |
2014-11-20 |
Grant Date |
2019-01-15 |
Owner |
Wireless Seismic, Inc. (USA)
|
Inventor |
|
Abstract
Systems and methods related to allocation of multiplexing signatures to wireless data acquisition modules in a seismic array with real time wireless read out. The allocation may include selecting an index value offset from an adjacent index value to form serial data transfer paths wherein reuse of multiplexing signatures are spaced as far apart as possible in serial data path. In an embodiment the allocation of multiplexing signatures may be adaptive wherein a module may scan for the presence of signals utilizing a plurality of multiplexing signatures and in turn employ a multiplexing sequence that avoids any detected noise that could lead to interference. The detected noise may be attributable to sources within the survey area or from ambient noise present in the area.
IPC Classes ?
- G01V 1/22 - Transmitting seismic signals to recording or processing apparatus
|
9.
|
Multimode seismic survey system
Application Number |
14205902 |
Grant Number |
09594175 |
Status |
In Force |
Filing Date |
2014-03-12 |
First Publication Date |
2014-10-16 |
Grant Date |
2017-03-14 |
Owner |
Wireless Seismic, Inc. (USA)
|
Inventor |
- Crice, Douglas B.
- Kligfield, Roy
- Elder, Keith
|
Abstract
A multimode seismic survey system is disclosed where seismic information for a given seismic survey is read out by different seismic units using different modes. Such multimode systems encompass hybrid arrays where information is read out via different output modes for a single seismic event, and other multimode arrays where seismic information is read out via different modes for different seismic events. The modes utilized in such arrays may include wireless, nodal and/or cable modes. The multimode arrays can be implemented using multimode seismic units or single mode seismic units. In any event, the multimode arrays can be utilized to achieve a combination of advantages associated with the different readout modes or to address any of various multimode mode contexts in relation to seismic surveys.
IPC Classes ?
- G01V 1/22 - Transmitting seismic signals to recording or processing apparatus
- G01V 1/00 - SeismologySeismic or acoustic prospecting or detecting
|
10.
|
Multimode seismic unit and associated methodology
Application Number |
14205904 |
Grant Number |
10156650 |
Status |
In Force |
Filing Date |
2014-03-12 |
First Publication Date |
2014-10-16 |
Grant Date |
2018-12-18 |
Owner |
Wireless Seismic, Inc. (USA)
|
Inventor |
- Crice, Douglas B.
- Kligfield, Roy
- Elder, Keith
|
Abstract
A multimode seismic unit can selectively operate in any one or more of multimode readout modes. In one embodiment, a multimode seismic unit (1600) includes a physical mode selector switch (1602). The mode selector switch (1602) allows for manual selection of output modes including wireless, nodal, dual mode or automatic mode selection. The unit (1600) further includes an antenna (1604) for RF transmissions and a data port (1606) for uploading data in a nodal mode. The multimode unit can be used to implement a variety of single mode and multimode seismic arrays.
IPC Classes ?
- G01V 1/22 - Transmitting seismic signals to recording or processing apparatus
- G01V 1/16 - Receiving elements for seismic signalsArrangements or adaptations of receiving elements
- G01V 1/00 - SeismologySeismic or acoustic prospecting or detecting
|
11.
|
Wireless seismic system with phased antenna array
Application Number |
14042251 |
Grant Number |
09841517 |
Status |
In Force |
Filing Date |
2013-09-30 |
First Publication Date |
2014-09-18 |
Grant Date |
2017-12-12 |
Owner |
WIRELESS SEISMIC, INC. (USA)
|
Inventor |
- Elder, Keith
- Prokop, Andrew T.
- Kooper, Steven
|
Abstract
Systems and methods for utilization of a smart antenna in facilitating wireless communication between adjacent seismic data acquisition modules. The smart antenna may target an adjacent module with a radiation pattern directed toward the adjacent module. As such, the modules may employ space division multiplexing techniques to avoid interference between modules in the array. The modules may scan throughout a continuum of positions to locate adjacent modules. Once located, a spatial signal signature may be identified for the adjacent module and beamforming vectors may be calculated for targeting the radiation pattern toward the located module.
IPC Classes ?
- G01V 1/22 - Transmitting seismic signals to recording or processing apparatus
|
12.
|
Wireless exploration seismic system
Application Number |
13541928 |
Grant Number |
08811117 |
Status |
In Force |
Filing Date |
2012-07-05 |
First Publication Date |
2013-06-13 |
Grant Date |
2014-08-19 |
Owner |
Wireless Seismic, Inc. (USA)
|
Inventor |
- Elder, Keith
- Kooper, Steven
- Rose, Kevin
- Day, Calvin
- Elam, David
- Ingram, Kip
- Crice, Douglas B.
|
Abstract
Systems and methods for seismic data acquisition employing a dynamic multiplexing technique. The dynamic multiplexing technique may include advancing one or more modules in a seismic array through a multiplexing signature sequence in successive transmission periods. The multiplexing signature sequence may be random or pseudo-random. A shared multiplexing signature sequence may be used at all the modules in the seismic array. As such, modules belonging to a common collision domain may operate out of phase with respect to the shared multiplexing signature sequence.
IPC Classes ?
- G01V 1/00 - SeismologySeismic or acoustic prospecting or detecting
- G01V 1/22 - Transmitting seismic signals to recording or processing apparatus
|
13.
|
Wireless exploration seismic system
Application Number |
13541932 |
Grant Number |
08605545 |
Status |
In Force |
Filing Date |
2012-07-05 |
First Publication Date |
2013-06-13 |
Grant Date |
2013-12-10 |
Owner |
Wireless Seismic, Inc. (USA)
|
Inventor |
- Crice, Douglas
- Beffa, Mihai
|
Abstract
Systems and methods are provided for acquiring seismic data using a wireless network and a number of individual data acquisition modules that are configured to collect seismic data and forward data to a central recording and control system. In one implementation, a number of remote modules (301) are arranged in lines. Base station modules (302) receive information from the lines and relay the information to a central control and recording system (303). Radio links operating on multiple frequencies (F1-F12) are used by the modules (301). For improved data transfer rate, radio links from a remote module (301) leap past the nearest remote module to the next module closer to the base station.
IPC Classes ?
- G01V 1/00 - SeismologySeismic or acoustic prospecting or detecting
- G01V 1/20 - Arrangements of receiving elements, e.g. geophone pattern
|
14.
|
Systems and methods for seismic data acquisition
Application Number |
13541567 |
Grant Number |
09291732 |
Status |
In Force |
Filing Date |
2012-07-03 |
First Publication Date |
2013-05-30 |
Grant Date |
2016-03-22 |
Owner |
Wireless Seismic, Inc. (USA)
|
Inventor |
Crice, Douglas B.
|
Abstract
Systems and methods for seismic data acquisition utilizing wireless modules to perform real time data read out. The wireless modules may be assigned a shared multiplexing sequence through which each module advances in successive transmission periods. Wireless modules belonging to a shared collision domain may be operated out of phase from one another with respect to the shared multiplexing signature sequence. As such, a dynamic multiplexing regime may be implemented. The shared multiplexing signature sequence may include, among others, a plurality of different frequencies, a plurality of different codes, or a plurality of different discrete time periods.
IPC Classes ?
- G01V 1/00 - SeismologySeismic or acoustic prospecting or detecting
- G01V 1/22 - Transmitting seismic signals to recording or processing apparatus
|
15.
|
Systems and methods for seismic data acquisition
Application Number |
12982290 |
Grant Number |
08238198 |
Status |
In Force |
Filing Date |
2010-12-30 |
First Publication Date |
2012-07-05 |
Grant Date |
2012-08-07 |
Owner |
Wireless Seismic, Inc. (USA)
|
Inventor |
Crice, Douglas B
|
Abstract
Systems and methods for seismic data acquisition utilizing wireless modules to perform real time data read out. The wireless modules may be assigned a shared multiplexing sequence through which each module advances in successive transmission periods. Wireless modules belonging to a shared collision domain may be operated out of phase from one another with respect to the shared multiplexing signature sequence. As such, a dynamic multiplexing regime may be implemented. The shared multiplexing signature sequence may include, among others, a plurality of different frequencies, a plurality of different codes, or a plurality of different discrete time periods.
IPC Classes ?
- G01V 1/00 - SeismologySeismic or acoustic prospecting or detecting
|
16.
|
SYSTEMS AND METHODS FOR SEISMIC DATA ACQUISITION
Application Number |
US2011067762 |
Publication Number |
2012/092448 |
Status |
In Force |
Filing Date |
2011-12-29 |
Publication Date |
2012-07-05 |
Owner |
WIRELESS SEISMIC, INC. (USA)
|
Inventor |
Crice, Douglas
|
Abstract
Systems and methods for seismic data acquisition utilizing wireless modules to perform real time data read out. The wireless modules may be assigned a shared multiplexing sequence through which each module advances in successive transmission periods. Wireless modules belonging to a shared collision domain may be operated out of phase from one another with respect to the shared multiplexing signature sequence. As such, a dynamic multiplexing regime may be implemented. The shared multiplexing signature sequence may include, among others, a plurality of different frequencies, a plurality of different codes, or a plurality of different discrete time periods.
IPC Classes ?
- G01V 1/38 - SeismologySeismic or acoustic prospecting or detecting specially adapted for water-covered areas
- G01V 1/22 - Transmitting seismic signals to recording or processing apparatus
- H04W 84/18 - Self-organising networks, e.g. ad hoc networks or sensor networks
|
17.
|
SYSTEMS AND METHODS FOR IMPROVING BANDWIDTH OF WIRELESS NETWORKS
Application Number |
US2011067773 |
Publication Number |
2012/092453 |
Status |
In Force |
Filing Date |
2011-12-29 |
Publication Date |
2012-07-05 |
Owner |
WIRELESS SEISMIC, INC. (USA)
|
Inventor |
Crice, Douglas
|
Abstract
Systems and methods for seismic data acquisition with location aware network nodes. Based on location information of the nodes of the network, a multiplexing signature may be provided for the node. The location information may be used in conjunction with other information (e.g., location information of other nodes in the network and transmission ranges for nodes in the network) to determine collision domains. A multiplexing signature may be assigned to a node based on information regarding a collision domain to which the node belongs. As such, the assigned multiplexing signature may be used to avoid data collisions.
IPC Classes ?
- G01V 1/38 - SeismologySeismic or acoustic prospecting or detecting specially adapted for water-covered areas
- G01V 1/22 - Transmitting seismic signals to recording or processing apparatus
- H04W 84/18 - Self-organising networks, e.g. ad hoc networks or sensor networks
|
18.
|
WIRELESS EXPLORATION SEISMIC SYSTEM
Application Number |
US2011067780 |
Publication Number |
2012/092456 |
Status |
In Force |
Filing Date |
2011-12-29 |
Publication Date |
2012-07-05 |
Owner |
WIRELESS SEISMIC, INC. (USA)
|
Inventor |
- Elder, Keith
- Kooper, Steven
- Rose, Kevin
- Day, Calvin
- Elam, David
- Ingram, Kip
- Crice, Douglas
|
Abstract
Systems and methods for seismic data acquisition employing a dynamic multiplexing technique. The dynamic multiplexing technique may include advancing one or more modules in a seismic array through a multiplexing signature sequence in successive transmission periods. The multiplexing signature sequence may be random or pseudo-random. A shared multiplexing signature sequence may be used at all the modules in the seismic array. As such, modules belonging to a common collision domain may operate out of phase with respect to the shared multiplexing signature sequence.
IPC Classes ?
- G01V 1/24 - Recording seismic data
- G01V 1/22 - Transmitting seismic signals to recording or processing apparatus
- H04W 84/18 - Self-organising networks, e.g. ad hoc networks or sensor networks
|
19.
|
DATA ACQUISITION SYSTEM WITH REMOVABLE BATTERY HAVING INTEGRATED DATA STORAGE
Application Number |
US2011032912 |
Publication Number |
2012/009034 |
Status |
In Force |
Filing Date |
2011-04-18 |
Publication Date |
2012-01-19 |
Owner |
WIRELESS SEISMIC, INC.` (USA)
|
Inventor |
Crice, Douglas B.
|
Abstract
Data acquisition modules and systems including batteries (120) with integrated data storage (122). The battery with integrated data storage (118) can be selectively removed from the data acquisition module (100). This allows for reduced logistical effort associated with data retrieval and battery charging. For instance, the entire data acquisition module need not be transported to a central location for data recovery and charging, but rather the removable battery with integrated storage may be removed and transported. Also facilitated is extended surveys in that the battery or storage module may be replaced, such that survey design limitations such as storage capacity or battery life may be eliminated.
IPC Classes ?
- G01V 1/22 - Transmitting seismic signals to recording or processing apparatus
- G01V 1/16 - Receiving elements for seismic signalsArrangements or adaptations of receiving elements
- G01V 13/00 - Manufacturing, calibrating, cleaning, or repairing instruments or devices covered by groups
|
20.
|
SYNCHRONIZATION OF MODULES IN A WIRELESS ARRAY
Application Number |
US2010062494 |
Publication Number |
2011/082297 |
Status |
In Force |
Filing Date |
2010-12-30 |
Publication Date |
2011-07-07 |
Owner |
WIRELESS SEISMIC, INC (USA)
|
Inventor |
- Elder, Keith
- Beffa, Mihai
- Day, Calvin
- Rose, Kevin
- Kooper, Steven
|
Abstract
Presented are systems and methods for wireless data acquisition. The wireless data acquisition may involve synchronizing modules within a data acquisition array. The synchronized data acquisition array may be used to facilitate a seismic survey. Synchronization may be facilitated by receipt of a reference time event such that a clock is synchronized based on the reference time event.
|
21.
|
Synchronization of modules in a wireless array
Application Number |
12651091 |
Grant Number |
08228757 |
Status |
In Force |
Filing Date |
2009-12-31 |
First Publication Date |
2011-06-30 |
Grant Date |
2012-07-24 |
Owner |
Wireless Seismic, Inc. (USA)
|
Inventor |
- Beffa, Mihai
- Day, Calvin
- Rose, Kevin
- Kooper, Steven
- Elder, Keith
|
Abstract
Presented are systems and methods for wireless data acquisition. The wireless data acquisition may involve synchronizing modules within a data acquisition array. The synchronized data acquisition array may be used to facilitate a seismic survey. Synchronization may be facilitated by receipt of a reference time event such that a clock is synchronized based on the reference time event.
IPC Classes ?
- G01V 1/00 - SeismologySeismic or acoustic prospecting or detecting
|
22.
|
Wireless data acquisition system and method using self-initializing wireless modules
Application Number |
12651125 |
Grant Number |
08614928 |
Status |
In Force |
Filing Date |
2009-12-31 |
First Publication Date |
2011-06-30 |
Grant Date |
2013-12-24 |
Owner |
Wireless Seismic, Inc. (USA)
|
Inventor |
- Kooper, Steven
- Elder, Kaim
|
Abstract
Presented are systems and methods for deploying wireless data acquisition modules that facilitate autonomous initialization. The wireless data acquisition modules may initiate a initialization process in response to a stimulus associated with being deployed. The wireless data acquisition module may further conduct a neighbor discovery process and in turn establish a data transfer path among one or more other wireless data acquisition modules. Further, information obtained during a series of autonomous tests may be communicated during the neighbor discovery process and the establishment of the data transfer path may at least in part be based on the information obtained in the autonomous tests.
IPC Classes ?
- G01V 1/16 - Receiving elements for seismic signalsArrangements or adaptations of receiving elements
|
23.
|
Wireless exploration seismic system
Application Number |
12837177 |
Grant Number |
08238197 |
Status |
In Force |
Filing Date |
2010-07-15 |
First Publication Date |
2011-05-19 |
Grant Date |
2012-08-07 |
Owner |
Wireless Seismic, Inc. (USA)
|
Inventor |
- Crice, Douglas
- Beffa, Mihai
|
Abstract
Systems and methods are provided for acquiring seismic data using a wireless network and a number of individual data acquisition modules that are configured to collect seismic data and forward data to a central recording and control system. In one implementation, a number of remote modules (301) are arranged in lines. Base station modules (302) receive information from the lines and relay the information to a central control and recording system (303). Radio links operating on multiple frequencies (F1-F12) are used by the modules (301). For improved data transfer rate, radio links from a remote module (301) leap past the nearest remote module to the next module closer to the base station.
IPC Classes ?
- G01V 1/00 - SeismologySeismic or acoustic prospecting or detecting
|
24.
|
Wireless exploration seismic system
Application Number |
12982416 |
Grant Number |
08238199 |
Status |
In Force |
Filing Date |
2010-12-30 |
First Publication Date |
2011-05-12 |
Grant Date |
2012-08-07 |
Owner |
Wireless Seismic, Inc. (USA)
|
Inventor |
- Elder, Keith
- Kooper, Steven
- Rose, Kevin
- Day, Calvin
- Elam, David
- Ingram, Kip
- Crice, Douglas B.
|
Abstract
Systems and methods for seismic data acquisition employing a dynamic multiplexing technique. The dynamic multiplexing technique may include advancing one or more modules in a seismic array through a multiplexing signature sequence in successive transmission periods. The multiplexing signature sequence may be random or pseudo-random. A shared multiplexing signature sequence may be used at all the modules in the seismic array. As such, modules belonging to a common collision domain may operate out of phase with respect to the shared multiplexing signature sequence.
IPC Classes ?
- G01V 1/00 - SeismologySeismic or acoustic prospecting or detecting
|
|