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).

  • Patent number: 10221321
    Abstract: 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: Grant
    Filed: August 28, 2015
    Date of Patent: March 5, 2019
    Assignee: Battelle Memorial Institute
    Inventors: Raymond S. Addleman, Curtis J. Larimer, Christopher A. Barrett, George T. Bonheyo, Robert T. Jeters, Eric M. Winder
  • Publication number: 20190065141
    Abstract: 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: Application
    Filed: October 25, 2018
    Publication date: February 28, 2019
    Inventor: Christopher Barrett
  • Publication number: 20180371930
    Abstract: 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: Application
    Filed: May 25, 2018
    Publication date: December 27, 2018
    Inventors: Aaron D. Sippel, Bruce E. Varney, Ted J. Freeman, Christopher Barrett
  • Patent number: 10140087
    Abstract: 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: Grant
    Filed: December 6, 2016
    Date of Patent: November 27, 2018
    Assignee: Access Analog, LLC
    Inventor: Christopher Barrett
  • Publication number: 20180311708
    Abstract: 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: Application
    Filed: April 30, 2018
    Publication date: November 1, 2018
    Applicant: Rolls-Royce High Temperature Composites Inc.
    Inventor: Christopher Barrett
  • Publication number: 20180230064
    Abstract: 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: Application
    Filed: March 13, 2017
    Publication date: August 16, 2018
    Applicant: Rolls-Royce High Temperature Composites, Inc.
    Inventors: Joseph Lamusga, Christopher Barrett
  • Patent number: 10051650
    Abstract: 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: Grant
    Filed: May 12, 2016
    Date of Patent: August 14, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Chetan Khosla, Brian Theodore Lubars, Christopher A. Barrett, Temitope Akinsipe
  • Publication number: 20170269898
    Abstract: 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: Application
    Filed: December 6, 2016
    Publication date: September 21, 2017
    Inventor: Christopher Barrett
  • Publication number: 20170144373
    Abstract: 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: Application
    Filed: November 23, 2015
    Publication date: May 25, 2017
    Applicant: BATTELLE MEMORIAL INSTITUTE
    Inventors: Rebecca L. Erikson, Janine R. Hutchison, Christopher A. Barrett, Josef F. Christ
  • Publication number: 20170058130
    Abstract: 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: Application
    Filed: August 28, 2015
    Publication date: March 2, 2017
    Applicant: BATTELLE MEMORIAL INSTITUTE
    Inventors: Raymond S. Addleman, Curtis J. Larimer, Christopher A. Barrett, George T. Bonheyo, Robert T. Jeters, Eric M. Winder
  • Publication number: 20160338071
    Abstract: 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: Application
    Filed: May 12, 2016
    Publication date: November 17, 2016
    Inventors: Chetan Khosla, Brian Theodore Lubars, Christopher A. Barrett, Temitope Akinsipe
  • Patent number: 9462489
    Abstract: 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: Grant
    Filed: July 14, 2014
    Date of Patent: October 4, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Sasidhar Movva, Mihir Pravin Nabar, Chih-Ping Hsu, Sridhar Bandaru, Shriram Gurumoorthy, Francis Ming-Meng Ngai, Christopher Barrett, Bhaskara Viswanadham Batchu
  • Patent number: 9416731
    Abstract: 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: Grant
    Filed: October 31, 2013
    Date of Patent: August 16, 2016
    Assignee: General Electric Company
    Inventors: Richard Douglas Berkland, Shaun Christopher Barrett, Michael Sean Markham, Sean Cornelius O'Meara
  • Patent number: 9235251
    Abstract: 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: Grant
    Filed: December 10, 2010
    Date of Patent: January 12, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Norman S. Gargash, Andrew J. Frantz, Brian J. Salsbery, Christopher A. Barrett
  • Publication number: 20150334578
    Abstract: 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: Application
    Filed: July 14, 2014
    Publication date: November 19, 2015
    Inventors: Sasidhar Movva, Mihir Pravin Nabar, Chih-Ping Hsu, Sridhar Bandaru, Shriram Gurumoorthy, Francis Ming-Meng Ngai, Christopher Barrett, Bhaskara Viswanadham Batchu
  • Patent number: 9028957
    Abstract: 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: Grant
    Filed: September 12, 2013
    Date of Patent: May 12, 2015
    Assignee: University of Georgia Research Foundation, Inc.
    Inventors: Tina T. Salguero, Darrah Johnson-McDaniel, Christopher A. Barrett
  • Publication number: 20150114443
    Abstract: 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: Application
    Filed: October 31, 2013
    Publication date: April 30, 2015
    Applicant: General Electric Company
    Inventors: Richard Douglas Berkland, Shaun Christopher Barrett, Michael Sean Markham, Sean Cornelius O'Meara
  • Publication number: 20140072790
    Abstract: 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: Application
    Filed: September 12, 2013
    Publication date: March 13, 2014
    Applicant: UNIVERSITY OF GEORGIA RESEARCH FOUNDATION, INC.
    Inventors: Tina T. Salguero, Darrah Johnson-McDaniel, Christopher A. Barrett
  • Publication number: 20130290758
    Abstract: 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: Application
    Filed: June 27, 2013
    Publication date: October 31, 2013
    Inventors: Christopher QUICK, Tracy Ulmer, Andrew J. Frantz, Christopher A. Barrett, Brian J. Salsbery, Norman S. Gargash
  • Publication number: 20130120010
    Abstract: 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: Application
    Filed: May 21, 2012
    Publication date: May 16, 2013
    Applicant: QUALCOMM Incorporated
    Inventors: 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