Patents by Inventor Christopher Barrett
Christopher Barrett 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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Paintable hydrophobic and lubricant-infused surface coatings and processes for making and using same
Patent number: 10221321Abstract: Compositions and processes are disclosed for forming hydrophobic coatings and lubricant-infused surface coatings. Coatings may be applied to various substrates without prior chemical or temperature treatment of the substrates and over large and irregular surfaces. Coatings are self-healing, anti-fouling, and have enhanced lifetimes.Type: GrantFiled: August 28, 2015Date of Patent: March 5, 2019Assignee: Battelle Memorial InstituteInventors: Raymond S. Addleman, Curtis J. Larimer, Christopher A. Barrett, George T. Bonheyo, Robert T. Jeters, Eric M. Winder -
Publication number: 20190065141Abstract: Methods and systems for processing audio signals include receiving, via an application displayed at a client computing device, an audio signal and a user control input for controlling an audio processing effect of the audio signal. The method may comprise sending the audio signal and the user control input to an audio server and then relaying the audio signal through the audio server to an input of an audio processing device. The method may also comprise controlling a setting on the audio processing device through a hardware controller based on the user control input, and returning a processed version of the audio signal from the audio processing device to the client computing device. The method may comprise adding an identifying signal between samples of an unprocessed version of the audio signal and initiating playback based on the identifying signal.Type: ApplicationFiled: October 25, 2018Publication date: February 28, 2019Inventor: Christopher Barrett
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Publication number: 20180371930Abstract: A gas turbine engine may comprise a blade track and a method of making the same. The blade track may be constructed of ceramic matrix composite components including main body members and joints.Type: ApplicationFiled: May 25, 2018Publication date: December 27, 2018Inventors: Aaron D. Sippel, Bruce E. Varney, Ted J. Freeman, Christopher Barrett
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Patent number: 10140087Abstract: The disclosure provides methods and systems for processing audio signals. The method may comprise receiving, via an application displayed at a client computing device, an audio signal and a user control input for controlling an audio processing effect of the audio signal. Then, the method may comprise sending, via a wide area network connection, the audio signal and the user control input to an audio server and then relaying the audio signal through the audio server to an input of an audio processing device. The method may also comprise controlling a setting on the audio processing device through a hardware controller based on the user control input, and returning a processed version of the audio signal from the audio processing device to the client computing device.Type: GrantFiled: December 6, 2016Date of Patent: November 27, 2018Assignee: Access Analog, LLCInventor: Christopher Barrett
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Publication number: 20180311708Abstract: A method of slurry infiltration and cleaning to fabricate a ceramic matrix composite (CMC) component with an internal cavity or bore comprises inserting a number of rods into a hollow portion of a porous fiber preform, thereby forming a rod arrangement substantially filling the hollow portion. Each of the rods has a low-friction surface comprising a coefficient of static friction of about 0.1 or less. The porous fiber preform is exposed to a slurry comprising particulate solids in a liquid carrier, and the slurry infiltrates the porous fiber preform. Some fraction of the particulate solids is deposited within interstices of the porous fiber preform to form an impregnated fiber preform, and another fraction of the particulate solids is deposited within the hollow portion as excess slurry. After slurry infiltration, the rods are withdrawn from the hollow portion, and at least some of the excess slurry is removed with the rods.Type: ApplicationFiled: April 30, 2018Publication date: November 1, 2018Applicant: Rolls-Royce High Temperature Composites Inc.Inventor: Christopher Barrett
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Publication number: 20180230064Abstract: A method for fabricating a ceramic matrix composite component having a deltoid region is provided. The method includes providing a porous ceramic preform. The porous ceramic preform includes a layer-to-layer weave of ceramic fibers that forms a modified layer-to-layer woven core and at least one 2-dimensional layer of ceramic fibers that is disposed adjacent to the modified layer-to-layer woven core. The porous ceramic preform is formed into a ceramic matrix composite body having the deltoid region such that the modified layer-to-layer woven core extends through the deltoid region.Type: ApplicationFiled: March 13, 2017Publication date: August 16, 2018Applicant: Rolls-Royce High Temperature Composites, Inc.Inventors: Joseph Lamusga, Christopher Barrett
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Patent number: 10051650Abstract: Methods, systems, and devices are described for wireless communication. A method may include maintaining a plurality of conflict entries, each conflict entry indicating a first frequency range associated with interference by a first radio access technology (RAT) and a second frequency range associated with interference by a second RAT. Each conflict entry may indicate a first frequency range of component carriers of a RAT operating in carrier aggregation mode. Active coexistence conflicts may be identified between the first and second RATs based in part on the conflict entries and current radio conditions. The method may also include selecting one of the active coexistence conflicts for conflict mitigation. In some examples, a subset of the conflict entries are organized into an intermodulation group. The method may also include determining a conflict priority for each conflict entry associated with an active coexistence conflict. In some examples, conflict priorities may be aggregated.Type: GrantFiled: May 12, 2016Date of Patent: August 14, 2018Assignee: QUALCOMM IncorporatedInventors: Chetan Khosla, Brian Theodore Lubars, Christopher A. Barrett, Temitope Akinsipe
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Publication number: 20170269898Abstract: The disclosure provides methods and systems for processing audio signals. The method may comprise receiving, via an application displayed at a client computing device, an audio signal and a user control input for controlling an audio processing effect of the audio signal. Then, the method may comprise sending, via a wide area network connection, the audio signal and the user control input to an audio server and then relaying the audio signal through the audio server to an input of an audio processing device. The method may also comprise controlling a setting on the audio processing device through a hardware controller based on the user control input, and returning a processed version of the audio signal from the audio processing device to the client computing device.Type: ApplicationFiled: December 6, 2016Publication date: September 21, 2017Inventor: Christopher Barrett
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Publication number: 20170144373Abstract: Methods and systems for three-dimensional printing of conductive materials are disclosed. A molten filament containing a conductive material is extruded from a print head of a three-dimensional printer. A magnetic field is applied to the print head. The magnetic field may be a magnet or an electromagnet. The magnetic field may be applied at the tip of the extruder, nozzle, or nozzle tip of the print head.Type: ApplicationFiled: November 23, 2015Publication date: May 25, 2017Applicant: BATTELLE MEMORIAL INSTITUTEInventors: Rebecca L. Erikson, Janine R. Hutchison, Christopher A. Barrett, Josef F. Christ
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PAINTABLE HYDROPHOBIC AND LUBRICANT-INFUSED SURFACE COATINGS AND PROCESSES FOR MAKING AND USING SAME
Publication number: 20170058130Abstract: Compositions and processes are disclosed for forming hydrophobic coatings and lubricant-infused surface coatings. Coatings may be applied to various substrates without prior chemical or temperature treatment of the substrates and over large and irregular surfaces. Coatings are self-healing, anti-fouling, and have enhanced lifetimes.Type: ApplicationFiled: August 28, 2015Publication date: March 2, 2017Applicant: BATTELLE MEMORIAL INSTITUTEInventors: Raymond S. Addleman, Curtis J. Larimer, Christopher A. Barrett, George T. Bonheyo, Robert T. Jeters, Eric M. Winder -
Publication number: 20160338071Abstract: Methods, systems, and devices are described for wireless communication. A method may include maintaining a plurality of conflict entries, each conflict entry indicating a first frequency range associated with interference by a first radio access technology (RAT) and a second frequency range associated with interference by a second RAT. Each conflict entry may indicate a first frequency range of component carriers of a RAT operating in carrier aggregation mode. Active coexistence conflicts may be identified between the first and second RATs based in part on the conflict entries and current radio conditions. The method may also include selecting one of the active coexistence conflicts for conflict mitigation. In some examples, a subset of the conflict entries are organized into an intermodulation group. The method may also include determining a conflict priority for each conflict entry associated with an active coexistence conflict. In some examples, conflict priorities may be aggregated.Type: ApplicationFiled: May 12, 2016Publication date: November 17, 2016Inventors: Chetan Khosla, Brian Theodore Lubars, Christopher A. Barrett, Temitope Akinsipe
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Patent number: 9462489Abstract: Various embodiments provide methods implemented in a mobile communication device (e.g., a multi-RAT communication device) for maintaining at least one separate RGS value for each of a plurality of RATs operating on the mobile communication device. Specifically, a device processor on the mobile communication device (e.g., a crystal oscillator manager) may maintain a separate, up-to-date RGS value for each of the plurality of RATs and may associate each of the plurality of RATs with their respective RGS values. By keeping track of the plurality of RATs' respective RGS values, the device processor may ensure that an appropriate RGS value is used to facilitate each RAT's individual operations, such as acquisition/re-acquisition operations, sleep scheduling calculations, and handover/inter-RAT measurement operations. As a result, various embodiments may improve the performance of each RAT and the overall performance of the mobile communication device.Type: GrantFiled: July 14, 2014Date of Patent: October 4, 2016Assignee: QUALCOMM IncorporatedInventors: Sasidhar Movva, Mihir Pravin Nabar, Chih-Ping Hsu, Sridhar Bandaru, Shriram Gurumoorthy, Francis Ming-Meng Ngai, Christopher Barrett, Bhaskara Viswanadham Batchu
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Patent number: 9416731Abstract: A thermocouple assembly includes a thermocouple probe fixedly contained within a probe insulation sheath. Also included is a protection tube having a first end, a second end, and a hollow portion extending in a longitudinal direction of the protection tube from the first end to the second end, the hollow portion configured to receive the thermocouple probe and the probe insulation sheath therein. Further included is a radiation shield integrally formed with the protection tube proximate the second end of the protection tube. Yet further included is a nut configured to threadingly engage a threaded portion of the protection tube proximate the first end of the protection tube, the nut configured to positionally fix the thermocouple probe and the probe insulation sheath upon engagement with the protection tube.Type: GrantFiled: October 31, 2013Date of Patent: August 16, 2016Assignee: General Electric CompanyInventors: Richard Douglas Berkland, Shaun Christopher Barrett, Michael Sean Markham, Sean Cornelius O'Meara
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Patent number: 9235251Abstract: The aspects enable a computing device or microprocessor to determine a low power mode that provides the most system power savings by placing selected resources in a low power mode while continuing to function reliably, depending upon the resources not in use, acceptable system latencies, dynamic operating conditions (e.g., temperature), expected idle time, and the unique electrical characteristics of the particular device. Aspects provide a mechanism for determining an optimal low power configuration made up of a set of low power modes for the various resources within the computing device by determining which low power modes are valid at the time the processor enters an idle state, ranking the valid low power modes by expected power savings given the current device conditions, determining which valid low power mode provides the greatest power savings while meeting the latency requirements, and selecting a particular low power mode for each resource to enter.Type: GrantFiled: December 10, 2010Date of Patent: January 12, 2016Assignee: QUALCOMM IncorporatedInventors: Norman S. Gargash, Andrew J. Frantz, Brian J. Salsbery, Christopher A. Barrett
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Publication number: 20150334578Abstract: Various embodiments provide methods implemented in a mobile communication device (e.g., a multi-RAT communication device) for maintaining at least one separate RGS value for each of a plurality of RATs operating on the mobile communication device. Specifically, a device processor on the mobile communication device (e.g., a crystal oscillator manager) may maintain a separate, up-to-date RGS value for each of the plurality of RATs and may associate each of the plurality of RATs with their respective RGS values. By keeping track of the plurality of RATs' respective RGS values, the device processor may ensure that an appropriate RGS value is used to facilitate each RAT's individual operations, such as acquisition/re-acquisition operations, sleep scheduling calculations, and handover/inter-RAT measurement operations. As a result, various embodiments may improve the performance of each RAT and the overall performance of the mobile communication device.Type: ApplicationFiled: July 14, 2014Publication date: November 19, 2015Inventors: Sasidhar Movva, Mihir Pravin Nabar, Chih-Ping Hsu, Sridhar Bandaru, Shriram Gurumoorthy, Francis Ming-Meng Ngai, Christopher Barrett, Bhaskara Viswanadham Batchu
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Patent number: 9028957Abstract: Embodiments of the present disclosure relate to the preparation of colloidal dispersions or suspensions of inorganic materials with nano-sized and nano-structured morphologies, preferably the nanosheet form, compositions produced by this method, and the like.Type: GrantFiled: September 12, 2013Date of Patent: May 12, 2015Assignee: University of Georgia Research Foundation, Inc.Inventors: Tina T. Salguero, Darrah Johnson-McDaniel, Christopher A. Barrett
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Publication number: 20150114443Abstract: A thermocouple assembly includes a thermocouple probe fixedly contained within a probe insulation sheath. Also included is a protection tube having a first end, a second end, and a hollow portion extending in a longitudinal direction of the protection tube from the first end to the second end, the hollow portion configured to receive the thermocouple probe and the probe insulation sheath therein. Further included is a radiation shield integrally formed with the protection tube proximate the second end of the protection tube. Yet further included is a nut configured to threadingly engage a threaded portion of the protection tube proximate the first end of the protection tube, the nut configured to positionally fix the thermocouple probe and the probe insulation sheath upon engagement with the protection tube.Type: ApplicationFiled: October 31, 2013Publication date: April 30, 2015Applicant: General Electric CompanyInventors: Richard Douglas Berkland, Shaun Christopher Barrett, Michael Sean Markham, Sean Cornelius O'Meara
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Publication number: 20140072790Abstract: Embodiments of the present disclosure relate to the preparation of colloidal dispersions or suspensions of inorganic materials with nano-sized and nano-structured morphologies, preferably the nanosheet form, compositions produced by this method, and the like.Type: ApplicationFiled: September 12, 2013Publication date: March 13, 2014Applicant: UNIVERSITY OF GEORGIA RESEARCH FOUNDATION, INC.Inventors: Tina T. Salguero, Darrah Johnson-McDaniel, Christopher A. Barrett
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Publication number: 20130290758Abstract: The aspects enable a computing device or microprocessor to determine a low power mode that provides the most system power savings by placing selected resources in a low power mode while continuing to function reliably, depending upon the resources not in use, acceptable system latencies, dynamic operating conditions (e.g., temperature), expected idle time, and the unique electrical characteristics of the particular device. Aspects provide a mechanism for determining an optimal low power configuration made up of a set of low power modes for the various resources within the computing device by determining which low power modes are valid at the time the processor enters an idle state, ranking the valid low power modes by expected power savings given the current device conditions, determining which valid low power mode provides the greatest power savings while meeting the latency requirements, and selecting a particular low power mode for each resource to enter.Type: ApplicationFiled: June 27, 2013Publication date: October 31, 2013Inventors: Christopher QUICK, Tracy Ulmer, Andrew J. Frantz, Christopher A. Barrett, Brian J. Salsbery, Norman S. Gargash
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Publication number: 20130120010Abstract: A measurement instrument includes selectable channels for simultaneously measuring current on a power rail/load of a device under test. Multiplexor circuitry can be controlled to select power rails/loads for measurement and to couple unselected power rails to bypass the measurement circuitry. Active loads are provided in the measurement circuitry to compensate for loading by the measurement circuitry. The active loads cause current on a source side of a selected power rail/load to match current measured on a load side of the selected power rail/load during power measurements.Type: ApplicationFiled: May 21, 2012Publication date: May 16, 2013Applicant: QUALCOMM IncorporatedInventors: Clement B. Edgar, III, Brett L. Christensen, Christopher A. Barrett, Lakshmi P. Baskaran, Christopher F. Einsmann, Karthik N. Moncombu Ramakrishnan, Alfonso T. Trujillo, Alejandro Trujillo