Patents by Inventor Hilde Nakstad
Hilde Nakstad has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8064286Abstract: Seismic sensor systems and sensor station topologies, as well as corresponding cable and sensor station components, manufacturing and deployment techniques are provided. For some embodiments, networks of optical ocean bottom seismic (OBS) stations are provided, in which sensor stations are efficiently deployed in a modular fashion as series of array cable modules deployed along a multi-fiber cable.Type: GrantFiled: October 31, 2007Date of Patent: November 22, 2011Assignee: Optoplan ASInventors: Erlend Rønnekleiv, Ole Henrik Waagaard, Hilde Nakstad, Arne Berg
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Patent number: 7688673Abstract: Seismic sensor systems and sensor station topologies, as well as corresponding cable and sensor station components, manufacturing and deployment techniques are provided. For some embodiments, networks of optical ocean bottom seismic (OBS) stations are provided, in which sensor stations are efficiently deployed in a modular fashion as series of array cable modules deployed along a multi-fiber cable.Type: GrantFiled: October 31, 2007Date of Patent: March 30, 2010Assignee: Optoplan ASInventors: Erlend Rønnekleiv, Ole Henrik Waagaard, Hilde Nakstad, Arne Berg
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Patent number: 7679994Abstract: Seismic sensor systems and sensor station topologies, as well as corresponding cable and sensor station components, manufacturing and deployment techniques are provided. For some embodiments, networks of optical ocean bottom seismic (OBS) stations are provided, in which sensor stations are efficiently deployed in a modular fashion as series of array cable modules deployed along a multi-fiber cable.Type: GrantFiled: October 31, 2007Date of Patent: March 16, 2010Assignee: Optoplan ASInventors: Erlend Ronnekleiv, Ole Henrik Waagaard, Hilde Nakstad, Arne Berg, Jon Thomas Kringlebotn
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Patent number: 7558155Abstract: Seismic sensor systems and sensor station topologies, as well as corresponding cable and sensor station components, manufacturing and deployment techniques are provided. For some embodiments, networks of optical ocean bottom seismic (OBS) stations are provided, in which sensor stations are efficiently deployed in a modular fashion as series of array cable modules deployed along a multi-fiber cable.Type: GrantFiled: October 31, 2007Date of Patent: July 7, 2009Assignee: Optoplan A/SInventors: Erlend Rønnekleiv, Ole Henrik Waagaard, Hilde Nakstad, Ame Berg
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Patent number: 7551517Abstract: A seismic sensor station includes a housing containing a fiber optic hydrophone and a fiber optic accelerometer that can both be made from a single length of optical fiber arranged inside the housing. The fiber optic accelerometer is arranged in a liquid/oil filled compartment of the housing for dampening of mechanical resonances in the accelerometer due to mechanical disturbances and pressure fluctuations.Type: GrantFiled: May 5, 2006Date of Patent: June 23, 2009Assignee: Optoplan ASInventors: Arne Berg, Erlend Ronnekleiv, Ole Henrik Waagaard, Jon Thomas Kringlebotn, Hilde Nakstad, Roar Furuhaug
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Patent number: 7539080Abstract: Seismic sensor systems and sensor station topologies, as well as corresponding cable and sensor station components, manufacturing and deployment techniques are provided. For some embodiments, networks of optical ocean bottom seismic (OBS) stations are provided, in which sensor stations are efficiently deployed in a modular fashion as series of array cable modules deployed along a multi-fiber cable.Type: GrantFiled: October 31, 2007Date of Patent: May 26, 2009Assignee: Optoplan ASInventors: Erlend Rønnekleiv, Ole Henrik Waagaard, Hilde Nakstad, Arne Berg
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Publication number: 20080123467Abstract: Seismic sensor systems and sensor station topologies, as well as corresponding cable and sensor station components, manufacturing and deployment techniques are provided. For some embodiments, networks of optical ocean bottom seismic (OBS) stations are provided, in which sensor stations are efficiently deployed in a modular fashion as series of array cable modules deployed along a multi-fiber cable.Type: ApplicationFiled: October 31, 2007Publication date: May 29, 2008Inventors: Erlend Ronnekleiv, Ole Henrik Waagaard, Hilde Nakstad, Arne Berg
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Publication number: 20080112264Abstract: Seismic sensor systems and sensor station topologies, as well as corresponding cable and sensor station components, manufacturing and deployment techniques are provided. For some embodiments, networks of optical ocean bottom seismic (OBS) stations are provided, in which sensor stations are efficiently deployed in a modular fashion as series of array cable modules deployed along a multi-fiber cable.Type: ApplicationFiled: October 31, 2007Publication date: May 15, 2008Inventors: ERLEND RONNEKLEIV, Ole Henrik Waagaard, Hilde Nakstad, Ame Berg
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Publication number: 20080112268Abstract: Seismic sensor systems and sensor station topologies, as well as corresponding cable and sensor station components, manufacturing and deployment techniques are provided. For some embodiments, networks of optical ocean bottom seismic (OBS) stations are provided, in which sensor stations are efficiently deployed in a modular fashion as series of array cable modules deployed along a multi-fiber cable.Type: ApplicationFiled: October 31, 2007Publication date: May 15, 2008Inventors: ERLEND RONNEKLEIV, Ole Henrik Waagaard, Hilde Nakstad, Arne Berg
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Publication number: 20080112261Abstract: Seismic sensor systems and sensor station topologies, as well as corresponding cable and sensor station components, manufacturing and deployment techniques are provided. For some embodiments, networks of optical ocean bottom seismic (OBS) stations are provided, in which sensor stations are efficiently deployed in a modular fashion as series of array cable modules deployed along a multi-fiber cable.Type: ApplicationFiled: October 31, 2007Publication date: May 15, 2008Inventors: ERLEND RONNEKLEIV, OLE HENRIK WAAGAARD, HILDE NAKSTAD, ARNE BERG
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Publication number: 20080112260Abstract: Seismic sensor systems and sensor station topologies, as well as corresponding cable and sensor station components, manufacturing and deployment techniques are provided. For some embodiments, networks of optical ocean bottom seismic (OBS) stations are provided, in which sensor stations are efficiently deployed in a modular fashion as series of array cable modules deployed along a multi-fiber cable.Type: ApplicationFiled: October 31, 2007Publication date: May 15, 2008Inventors: ERLEND RONNEKLEIV, Ole Henrik Waagaard, Hilde Nakstad, Arne Berg
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Publication number: 20080112267Abstract: Seismic sensor systems and sensor station topologies, as well as corresponding cable and sensor station components, manufacturing and deployment techniques are provided. For some embodiments, networks of optical ocean bottom seismic (OBS) stations are provided, in which sensor stations are efficiently deployed in a modular fashion as series of array cable modules deployed along a multi-fiber cable.Type: ApplicationFiled: October 31, 2007Publication date: May 15, 2008Inventors: Erlend Ronnekleiv, Ole Henrik Waagaard, Hilde Nakstad, Arne Berg
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Publication number: 20080101157Abstract: Seismic sensor systems and sensor station topologies, as well as corresponding cable and sensor station components, manufacturing and deployment techniques are provided. For some embodiments, networks of optical ocean bottom seismic (OBS) stations are provided, in which sensor stations are efficiently deployed in a modular fashion as series of array cable modules deployed along a multi-fiber cable.Type: ApplicationFiled: October 31, 2007Publication date: May 1, 2008Inventors: ERLEND RONNEKLEIV, Ole Waagaard, Hilde Nakstad, Arne Berg
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Patent number: 7366055Abstract: Seismic sensor systems and sensor station topologies, as well as corresponding cable and sensor station components, manufacturing and deployment techniques are provided. For some embodiments, networks of optical ocean bottom seismic (OBS) stations are provided, in which sensor stations are efficiently deployed in a modular fashion as series of array cable modules deployed along a multi-fiber cable.Type: GrantFiled: May 5, 2006Date of Patent: April 29, 2008Assignee: Optoplan ASInventors: Erlend Rønnekleiv, Ole Henrik Waagaard, Hilde Nakstad, Arne Berg
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Publication number: 20070258330Abstract: A seismic sensor station includes a housing containing a fiber optic hydrophone and a fiber optic accelerometer that can both be made from a single length of optical fiber arranged inside the housing. The fiber optic accelerometer is arranged in a liquid/oil filled compartment of the housing for dampening of mechanical resonances in the accelerometer due to mechanical disturbances and pressure fluctuations.Type: ApplicationFiled: May 5, 2006Publication date: November 8, 2007Inventors: Arne Berg, Erlend Ronnekleiv, Ole Waagaard, Jon Kringlebotn, Hilde Nakstad, Roar Furuhaug
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Publication number: 20070258319Abstract: Seismic sensor systems and sensor station topologies, as well as corresponding cable and sensor station components, manufacturing and deployment techniques are provided. For some embodiments, networks of optical ocean bottom seismic (OBS) stations are provided, in which sensor stations are efficiently deployed in a modular fashion as series of array cable modules deployed along a multi-fiber cable.Type: ApplicationFiled: May 5, 2006Publication date: November 8, 2007Inventors: Erlend Ronnekleiv, Ole Waagaard, Hilde Nakstad, Arne Berg
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Patent number: 7268884Abstract: Devices and methods of accurately determining optical wavelengths, such as the Bragg wavelengths of an FBG sensor array. Wavelength-swept light having a characteristic spectrum is swept over a bandwidth and is applied to an interference filter. The interference filter produces an optical spectrum having one or more reference peaks that are identifiable because of the characteristic spectrum. The optical spectrum is converted into electrical signals having at least one electrical signal that is identifiable because of the characteristic spectrum. The identifiable electrical signal is used by a signal processor as an absolute, high accuracy wavelength reference. Temperature compensation or temperature stabilization can compensate the characteristic wavelength. Fiber Bragg sensor systems can use the wavelength reference to determine the Bragg wavelength of FBG elements. The characteristic spectrum can be imparted by the light source or an optical element such as a transmission line filter.Type: GrantFiled: December 23, 2003Date of Patent: September 11, 2007Assignee: Optoplan ASInventors: Jon Thomas Kringlebotn, Hilde Nakstad, Dag Thingbo
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Patent number: 7157693Abstract: An optical wavelength readout system for application in optical sensing systems is disclosed. The system includes a Master unit including a wavelength swept optical source for launching light into a string of optical sensors, and a detection and processing unit for detecting and processing the light emitted by the source. The system also includes a Slave unit including a light coupling device for coupling light from the light source into the string of sensors and for coupling light reflected from the string of sensors to a detection and processing unit arranged to detect and process the reflected light. The Master unit includes a wavelength reference unit adapted to make a reference signal available to other parts of the sensing system. The reference signal represents a generally exact relation between the wavelength of the light emitted from the source and time.Type: GrantFiled: February 6, 2006Date of Patent: January 2, 2007Assignee: Optoplan ASInventors: Dag Thingbo, Jon Thomas Kringlebotn, Hilde Nakstad, Erlend Ronnekleiv
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Publication number: 20060131488Abstract: An optical wavelength readout system for application in optical sensing systems is disclosed. The system includes a Master unit including a wavelength swept optical source for launching light into a string of optical sensors, and a detection and processing unit for detecting and processing the light emitted by the source. The system also includes a Slave unit including a light coupling device for coupling light from the light source into the string of sensors and for coupling light reflected from the string of sensors to a detection and processing unit arranged to detect and process the reflected light. The Master unit includes a wavelength reference unit adapted to make a reference signal available to other parts of the sensing system. The reference signal represents a generally exact relation between the wavelength of the light emitted from the source and time.Type: ApplicationFiled: February 6, 2006Publication date: June 22, 2006Inventors: Dag Thingbo, Jon Kringlebotn, Hilde Nakstad, Erlend Ronnekleiv
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Patent number: 7060967Abstract: An optical wavelength readout system for application in optical sensing systems is disclosed. The system includes a Master unit including a wavelength swept optical source for launching light into a string of optical sensors, and a detection and processing unit for detecting and processing the light emitted by the source. The system also includes a Slave unit including a light coupling device for coupling light from the light source into the string of sensors and for coupling light reflected from the string of sensors to a detection and processing unit arranged to detect and process the reflected light. The Master unit includes a wavelength reference unit adapted to make a reference signal available to other parts of the sensing system. The reference signal represents a generally exact relation between the wavelength of the light emitted from the source and time.Type: GrantFiled: October 12, 2004Date of Patent: June 13, 2006Assignee: Optoplan ASInventors: Dag Thingbo, Jon Thomas Kringlebotn, Hilde Nakstad, Erlend Ronnekleiv