Patents by Inventor Robert W. Keys
Robert W. Keys 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: 11933929Abstract: A method of characterizing a subterranean formation using a plurality of seismic acquisitions includes obtaining a first seismic acquisition of the subterranean formation, wherein the first seismic acquisition is a baseline survey. Injecting a gas fluid into the subterranean formation, wherein the gas fluid at least partially fills a portion of a fracture network of the subterranean formation. Obtaining a second seismic acquisition of the subterranean formation. Calculating a time-lapse difference in the plurality of seismic acquisitions.Type: GrantFiled: February 6, 2019Date of Patent: March 19, 2024Assignee: CONOCOPHILLIPS COMPANYInventors: Thomas J. Wheeler, Jane W. Mutoru, Robert G. Keys, Dana M. Jurick, Mark J. Fissell
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Patent number: 8811822Abstract: A system and method for selecting ghost channels in an optical communication system, including components configured to examine an optical communication channel within a node of the optical communication system, examine a neighbor channel of the optical communication channel, determine whether using the neighbor channel as a ghost channel will create an undesirable level of risk of feedback within the optical communication system, if using the neighbor channel as a ghost channel will not create an undesirable level of risk of feedback, determine whether the neighbor channel is currently used as a ghost channel, and if the neighbor channel is not currently used as a ghost channel, select the neighbor channel as a ghost channel.Type: GrantFiled: February 26, 2010Date of Patent: August 19, 2014Assignee: Fujitsu LimitedInventors: Denis Daniel Leclair, Sean D. L. McVeigh, Kevan P. Jones, Jean V. E. Ouellet, Douglas J. Greenwood, John B. Mills, Robert W. Keys
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Patent number: 8670664Abstract: A system and method for managing the selection of ghost channels in an optical communication system, including components configured to collect one or more first data values indicating the validity of an optical communication channel within a first degree of a node in the optical communication system, collect one or more second data values indicating the optical power level of the optical communication channel, transmit the first and second data values to a second degree of the node, receive the first and second data values at the first degree, and aggregate the first and second data values for the first degree and the second degree at the first degree.Type: GrantFiled: February 26, 2010Date of Patent: March 11, 2014Assignee: Fujitsu LimitedInventors: Denis Daniel Leclair, Sean D. L. McVeigh, Kevan P. Jones, Jean V. E. Ouellet, Douglas J. Greenwood, John B. Mills, Robert W. Keys
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Patent number: 8542992Abstract: A system for mitigating the effects of polarization hole burning in an optical communication system. The system includes an optical input signal comprising one or more traffic channels, a measurement module configured to check for the existence of ghost channels around the traffic channels, and a ghost channel generation module configured to generate a ghost channel around the traffic channels from amplified spontaneous emission noise of the optical input signal.Type: GrantFiled: February 26, 2010Date of Patent: September 24, 2013Assignee: Fujitsu LimitedInventors: Kevan P. Jones, Denis Daniel Leclair, Sean D. L. McVeigh, Jean V. E. Ouellet, Douglas J. Greenwood, John B. Mills, Robert W. Keys
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Patent number: 8090259Abstract: A system and method for optimizing the selection of ghost channels to mitigate the effects of polarization hole burning in a node of an optical communication system including identifying an optical communication channel in the node for use as a ghost channel, identifying a first set of degrees carrying the optical communication channel within the node, identifying a second set of degrees within the first set of degrees, the second set containing the degrees with the optical communication channel being a valid channel, identifying a third set of degrees within the first set of degrees, the third set containing degrees with the optical communication channel being sufficiently powerful, and selecting a first degree to source the ghost channel from the first set of degrees based at least on the second set of degrees and the third set of degrees.Type: GrantFiled: February 26, 2010Date of Patent: January 3, 2012Assignee: Fujitsu LimitedInventors: Denis Daniel Leclair, Sean D. L. McVeigh, Kevan P. Jones, Jean V. E. Ouellet, Douglas J. Greenwood, John B. Mills, Robert W. Keys
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Publication number: 20110211836Abstract: A system and method for optimizing the selection of ghost channels to mitigate the effects of polarization hole burning in a node of an optical communication system including identifying an optical communication channel in the node for use as a ghost channel, identifying a first set of degrees carrying the optical communication channel within the node, identifying a second set of degrees within the first set of degrees, the second set containing the degrees with the optical communication channel being a valid channel, identifying a third set of degrees within the first set of degrees, the third set containing degrees with the optical communication channel being sufficiently powerful, and selecting a first degree to source the ghost channel from the first set of degrees based at least on the second set of degrees and the third set of degrees.Type: ApplicationFiled: February 26, 2010Publication date: September 1, 2011Inventors: Denis Daniel Leclair, Sean D.L. McVeigh, Kevan P. Jones, Jean V.E. Ouellet, Douglas J. Greenwood, John B. Mills, Robert W. Keys
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Publication number: 20110211826Abstract: A system and method for selecting ghost channels in an optical communication system, including components configured to examine an optical communication channel within a node of the optical communication system, examine a neighbor channel of the optical communication channel, determine whether using the neighbor channel as a ghost channel will create an undesirable level of risk of feedback within the optical communication system, if using the neighbor channel as a ghost channel will not create an undesirable level of risk of feedback, determine whether the neighbor channel is currently used as a ghost channel, and if the neighbor channel is not currently used as a ghost channel, select the neighbor channel as a ghost channel.Type: ApplicationFiled: February 26, 2010Publication date: September 1, 2011Inventors: Denis Daniel Leclair, Sean D.L. McVeigh, Kevan P. Jones, Jean V.E. Ouellet, Douglas J. Greenwood, John B. Mills, Robert W. Keys
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Publication number: 20110211841Abstract: A system and method for managing the selection of ghost channels in an optical communication system, including components configured to collect one or more first data values indicating the validity of an optical communication channel within a first degree of a node in the optical communication system, collect one or more second data values indicating the optical power level of the optical communication channel, transmit the first and second data values to a second degree of the node, receive the first and second data values at the first degree, and aggregate the first and second data values for the first degree and the second degree at the first degree.Type: ApplicationFiled: February 26, 2010Publication date: September 1, 2011Inventors: Denis Daniel Leclair, Sean D. McVeigh, Kevan P. Jones, Jean V. E. Ouellet, Douglas J. Greenwood, John B. Mills, Robert W. Keys
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Publication number: 20110211835Abstract: A system for mitigating the effects of polarization hole burning in an optical communication system. The system includes an optical input signal comprising one or more traffic channels, a measurement module configured to check for the existence of ghost channels around the traffic channels, and a ghost channel generation module configured to generate a ghost channel around the traffic channels from amplified spontaneous emission noise of the optical input signal.Type: ApplicationFiled: February 26, 2010Publication date: September 1, 2011Inventors: Kevan P. Jones, Denis Daniel Leclair, Sean D.L. McVeigh, Jean V.E. Ouellet, Douglas J. Greenwood, John B. Mills, Robert W. Keys
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Patent number: 6757098Abstract: A modular bidirectional optical amplification system includes a multiwavelength dual amplifier building block, a multiwavelength unidirectional booster amplifier BB, a unidirectional and a bidirectional Optical Service Channel (OSC) BB, an Intelligent Optical Terminal Accessway (IOTA) module, and an interleaved filter BB. The dual amplifier BB is available in a C-band version, an E-band version and a hybrid version, and provides unidirectional or bidirectional multichannel amplification. The booster amplifier is available in a C-band version, an E-band version and in a booster plus variant; one for the C-band and one for E-band. The unidirectional and bidirectional OSC BBs provide a means for OAM&P functionality to the optical network. The IOTA BB provides multiplexing and demultiplexing, and the filter BB provides separation of the signal into grid-1 and grid-2 channels.Type: GrantFiled: March 27, 2001Date of Patent: June 29, 2004Assignee: Nortel Network LimitedInventors: Loren Berg, Mark R. Hinds, Robert W. Keys, Gregory D. May, Alan G. Solheim, Stephane St-Laurent
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Publication number: 20030151802Abstract: A modular bidirectional optical amplification system includes a multiwavelength dual amplifier building block, a multiwavelength unidirectional booster amplifier BB, a unidirectional and a bidirectional Optical Service Channel (OSC) BB, an Intelligent Optical Terminal Accessway (IOTA) module, and an interleaved filter BB. The dual amplifier BB is available in a C-band version, an E-band version and a hybrid version, and provides unidirectional or bidirectional multichannel amplification. The booster amplifier is available in a C-band version, an E-band version and in a booster plus variant; one for the C-band and one for E-band. The unidirectional and bidirectional OSC BBs provide a means for OAM&P functionality to the optical network. The IOTA BB provides multiplexing and demultiplexing, and the filter BB provides separation of the signal into grid-1 and grid-2 channels.Type: ApplicationFiled: March 27, 2001Publication date: August 14, 2003Inventors: Loren Berg, Mark R. Hinds, Robert W. Keys, Gregory D. May, Alan G. Solheim, Stephane St-Laurent
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Patent number: 6542233Abstract: An inexpensive broadband source such as an ASE source, used for erbium amplifier measurements, compares well with the use of a prior art ITU grid. Deltas are less than 0.4 and 0.3 dB for gain and noise figure respectively. The spectral loading used to test erbium amplifiers needs to closely resemble conditions seen in the field. Use of an ITU grid is a good way of achieving this, however it is a costly solution and may restrict the spectral resolution. Use of a high power amplified spontaneous emission source gives a cost-effective alternative, which compares well with ITU grid measurements. In addition the spectral resolution of the measurement is then only limited by the spectral resolution of the optical spectrum analyzer.Type: GrantFiled: October 4, 2000Date of Patent: April 1, 2003Assignee: Nortel Networks LimitedInventors: Mark E Bray, Ross T Elliott, Kevan P Jones, Robert W Keys
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Publication number: 20020196430Abstract: An optical system includes an optical medium which carries wavelengths of light, an optical tap which siphons the wavelengths from the optical medium, and a wavelength select switch having output ports. The wavelength select switch receives the wavelengths from the tap and selectively passes at least one of the wavelengths to one of the output ports. A power meter receives the at least one wavelength from the output port and measures power in the at least one wavelength.Type: ApplicationFiled: December 20, 2001Publication date: December 26, 2002Inventors: Gregory D. May, Robert W. Keys, David W. Park, Douglas Eccleston
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Patent number: 6275331Abstract: In a WDM optical transmission system employing optical amplifiers in its transmission path, a supervisory signal channel, used for monitoring and controlling the operation of the amplifiers and spectrally separated from the data transmission, may be multiplexed with the data. A construction of amplifier is disclosed which is capable of being upgraded with an upgrade of the transmission system to include additional data handling capacity, for instance data transmission in an additional waveband and/or in the opposite direction, without interruption of the pre-upgrade data transmission path through the amplifiers. This is accomplished by the use of channel dropping and insertion filters disposed so that the amplifying data transmission path extends via the drop/insertion channel of those filters.Type: GrantFiled: June 30, 1999Date of Patent: August 14, 2001Assignee: Nortel Networks LimitedInventors: Kevan P Jones, Roger M Gibb, Robert A Baker, Martin P Poettcker, Mark E Bray, Barrie Flintham, James Regan, Toby J Reid, Alan A Solheim, Robert W Keys, Mark R Hinds, Joseph Mun, Nigel E Jolley, Alan Robinson, Jonathan P King, Simon P Parry
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Patent number: 6236499Abstract: A modular bidirectional optical amplification system includes a multiwavelength dual amplifier building block, a multiwavelength unidirectional booster amplifier BB, a unidirectional and a bidirectional Optical Service Channel (OSC) BB, an Intelligent Optical Terminal Accessway (IOTA) module, and an interleaved filter BB. The dual amplifier BB is available in a C-band version, an E-band version and a hybrid version, and provides unidirectional or bidirectional multichannel amplification. The booster amplifier is available in a C-band version, an E-band version and in a booster plus variant;. one for the C-band and one for E-band. The unidirectional and bidirectional OSC BBs provide a means for OAM&P functionality to the optical network. The IOTA BB provides multiplexing and demultiplexing, and the filter BB provides separation of the signal into grid-1 and grid-2 channels.Type: GrantFiled: April 15, 1999Date of Patent: May 22, 2001Assignee: Nortel Networks LimitedInventors: Loren S. Berg, Mark R. Hinds, Robert W. Keys, Gregory D. May, Alan G. Solheim, Stephane St-Laurent
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Patent number: 6144486Abstract: The variables and parameters previously understood to affect the gain spectrum of an optical amplifier 13 were: (1) the wavelengths to be amplified; (2) the input power levels at those wavelengths; (3) the characteristics of the amplifying medium 20; (4) the insertion loss spectra of the amplifier's components, including any filter(s) used for gain flattening; (5) the pump band chosen to pump the amplifying medium 20; and (6) the total amount of pump power supplied in the chosen pump band. An additional fundamental variable has been identified which can be used to control the gain spectrum of an optical amplifier 13, namely, the center wavelength of the spectrum of the pump's output power within the chosen pump band. Methods and apparatus for using this variable for this purpose are disclosed.For example a, transmission system is disclosed having a transmitter 11 and a receiver 10 connected by an optical fiber 12.Type: GrantFiled: January 30, 1998Date of Patent: November 7, 2000Assignees: Corning Incorporated, Northern Telecom LimitedInventors: Kevin W. Bennett, Fiona Davis, Richard A. Habel, Paul A. Jakobson, Nigel E. Jolley, Robert W. Keys, Kim Byron Roberts, Mark A. Newhouse, Michael J. Yadlowsky