Patents by Inventor Christopher Duncan
Christopher Duncan 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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Publication number: 20230240487Abstract: A portable automated toilet cleaning apparatus includes a frame that fits over the toilet, and mechanical brushes or scrubbing implements that apply a scrubbing motion to surfaces of the toilet. The cleaning apparatus also includes spray jets or nozzles for directing fluid at surfaces to be cleaned. Straps may be provided to raise and hold the toilet seat and lid at angles relative to the toilet bowl, so that upper and lower surfaces of the seat and lid can be accessed by the brushes or scrubbing implements and the spray jets. A mat may also be provided at a lower side of the apparatus to collect wastewater and allow it to be poured or siphoned into the toilet bowl and disposed of by flushing.Type: ApplicationFiled: January 11, 2023Publication date: August 3, 2023Inventor: Ronald Christopher Duncan, JR.
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Patent number: 11596346Abstract: A technology is described for determining an intended movement from neuromuscular signals. An example method (800) includes receiving electromyography (EMG) data corresponding to single-ended channels of an electrode array (810), where EMG signals are detected by electrodes comprising the single-ended channels of the electrode array and the EMG signals are converted to the EMG data. Determining differential channel pairs for the single-ended channels of the electrode array (820) and extracting feature data from the EMG data of the differential channel pairs (830). Thereafter a feature data set is selected from the feature data of the differential channel pairs (840) and the feature data set is input to a decode model configured to correlate the feature data set to an intended movement (850). Decode output is received from the decode model indicating the intended movement (860) and the decode output is provided to a device (870).Type: GrantFiled: August 1, 2017Date of Patent: March 7, 2023Assignee: University of Utah Research FoundationInventors: Suzanne Wendelken, Tyler Davis, David Page, David Kluger, David Warren, Gregory Clark, Christopher Duncan, Jacob Nieveen
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Publication number: 20220022801Abstract: A technology is described for determining an intended movement from neuromuscular signals. An example method (800) includes receiving electromyography (EMG) data corresponding to single-ended channels of an electrode array (810), where EMG signals are detected by electrodes comprising the single-ended channels of the electrode array and the EMG signals are converted to the EMG data. Determining differential channel pairs for the single-ended channels of the electrode array (820) and extracting feature data from the EMG data of the differential channel pairs (830). Thereafter a feature data set is selected from the feature data of the differential channel pairs (840) and the feature data set is input to a decode model configured to correlate the feature data set to an intended movement (850). Decode output is received from the decode model indicating the intended movement (860) and the decode output is provided to a device (870).Type: ApplicationFiled: August 1, 2017Publication date: January 27, 2022Inventors: Suzanne Wendelken, Tyler Davis, David Page, David Kluger, David Warren, Gregory Clark, Christopher Duncan, Jacob Nieveen
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Patent number: 10602823Abstract: A handbag includes interior pockets or audible compartments that, when touched, provide an audible identification of contents, enabling objects to be easily retrieved despite the number of objects stored in the handbag and in a dark environment. The audible content identification may additionally be combined with a variety of additional “smart” or convenience features, such as audible reminders of items on a checklist input through a smartphone interface or memo pad or suggestions for hairstyles based on a weather report.Type: GrantFiled: July 25, 2019Date of Patent: March 31, 2020Inventor: Ronald Christopher Duncan, Jr.
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Patent number: 10549099Abstract: A technology is described for an electronic peripheral nerve stimulation system. The electronic nerve stimulation system can include a stimulation device and an electrode array. The stimulation device can be operable to generate a high-frequency alternating current. The electrode array can be operable to apply the high-frequency alternating current received from the stimulation device to selected subpopulations of peripheral nerve fibers within a peripheral nerve to block transmission of neural signals along the selected subpopulations of peripheral nerve fibers within the peripheral nerve.Type: GrantFiled: May 1, 2017Date of Patent: February 4, 2020Assignee: University of Utah Research FoundationInventors: David Kluger, Christopher Duncan, David Page, Gregory Clark, Tyler Davis, Suzanne Wendelken
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Patent number: 10252053Abstract: A technology is described for an electronic nerve stimulation system. The electronic nerve stimulation system can include a stimulation device operable to generate a high-frequency alternating current. The electronic nerve stimulation system can include one or more wearable electrodes operable to apply the high-frequency alternating current from the stimulation device to peripheral nerves to provide an electrical stimulation of neuronal tissue to treat pain. The one or more wearable electrodes can interface with the stimulation device via a connection system.Type: GrantFiled: March 31, 2017Date of Patent: April 9, 2019Assignee: University of Utah Research FoundationInventors: David Page, Christopher Duncan, David Kluger, Zachary Kagan, Gregory Clark
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Patent number: 9973543Abstract: Methods and systems for switching between computing devices during an online meeting are described herein. A collaboration server may receive a token from a first computing device connected to an online meeting hosted by the collaboration server. The collaboration server may receive another token from a second computing device and determine whether the received tokens match. If so, the collaboration server may establish an association between the second computing device and the meeting participant attending the online meeting via the first computing device. The collaboration server may accept a request from the second computing device to join the online meeting thus allowing the meeting participant to continue the online meeting from the second computing device.Type: GrantFiled: October 13, 2014Date of Patent: May 15, 2018Assignee: GetGo, Inc.Inventors: Gaurav Chitroda, Paul FitzGerald, Christopher Duncan, Carey Caulfield
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Publication number: 20170312522Abstract: A technology is described for an electronic peripheral nerve stimulation system. The electronic nerve stimulation system can include a stimulation device and an electrode array. The stimulation device can be operable to generate a high-frequency alternating current. The electrode array can be operable to apply the high-frequency alternating current received from the stimulation device to selected subpopulations of peripheral nerve fibers within a peripheral nerve to block transmission of neural signals along the selected subpopulations of peripheral nerve fibers within the peripheral nerve.Type: ApplicationFiled: May 1, 2017Publication date: November 2, 2017Inventors: David Kluger, Christopher Duncan, David Page, Gregory Clark, Tyler Davis, Suzanne Wendelken
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Publication number: 20170281941Abstract: A technology is described for an electronic nerve stimulation system. The electronic nerve stimulation system can include a stimulation device operable to generate a high-frequency alternating current. The electronic nerve stimulation system can include one or more wearable electrodes operable to apply the high-frequency alternating current from the stimulation device to peripheral nerves to provide an electrical stimulation of neuronal tissue to treat pain. The one or more wearable electrodes can interface with the stimulation device via a connection system.Type: ApplicationFiled: March 31, 2017Publication date: October 5, 2017Inventors: David Page, Christopher Duncan, David Kluger, Zachary Kagan, Gregory Clark
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Publication number: 20160105472Abstract: Methods and systems for switching between computing devices during an online meeting are described herein. A collaboration server may receive a token from a first computing device connected to an online meeting hosted by the collaboration server. The collaboration server may receive another token from a second computing device and determine whether the received tokens match. If so, the collaboration server may establish an association between the second computing device and the meeting participant attending the online meeting via the first computing device. The collaboration server may accept a request from the second computing device to join the online meeting thus allowing the meeting participant to continue the online meeting from the second computing device.Type: ApplicationFiled: October 13, 2014Publication date: April 14, 2016Inventors: Gaurav Chitroda, Paul FitzGerald, Christopher Duncan, Carey Caulfield
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Patent number: 8572133Abstract: A system is for identifying a selected target in a geographic model. The system includes a database configured to store electronically a geographic model, different target model types with respective model-type metadata associated therewith, and different unique targets with unique target metadata associated therewith. A processor cooperates with the database and determines a proposed type-match between a selected target, with selected target metadata associated therewith, and one of the plurality of different target model types stored in the database based upon the selected target metadata and the model-type metadata. The processor also generates updated selected target metadata based upon confirmation of the proposed type-match, and determines a proposed unique target-match between the selected target and one of the different unique targets based upon confirmation of the proposed type-match and based upon the updated selected target metadata and the unique target metadata.Type: GrantFiled: March 29, 2010Date of Patent: October 29, 2013Assignee: Harris CorporationInventors: Gilbert Christopher Duncan, Guillermo E. Gutierrez, Belinda Villegas
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Patent number: 8557649Abstract: Methods for controlling the height of semiconductor structures are disclosed. Amorphous carbon is used as a stopping layer for controlling height variability. In one embodiment, the height of replacement metal gates for transistors is controlled. In another embodiment, the step height of a shallow trench isolation region is controlled.Type: GrantFiled: October 21, 2011Date of Patent: October 15, 2013Assignee: International Business Machines CorporationInventors: Rajasekhar Venigalla, Michael Vincent Aquilino, Massud A. Aminpur, Michael P. Belyansky, Unoh Kwon, Christopher Duncan Sheraw, Daewon Yang
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Publication number: 20130102125Abstract: Methods for controlling the height of semiconductor structures are disclosed. Amorphous carbon is used as a stopping layer for controlling height variability. In one embodiment, the height of replacement metal gates for transistors is controlled. In another embodiment, the step height of a shallow trench isolation region is controlled.Type: ApplicationFiled: October 21, 2011Publication date: April 25, 2013Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Rajasekhar Venigalla, Michael Vincent Aquilino, Massud A. Aminpur, Michael P. Belyansky, Unoh Kwon, Christopher Duncan Sheraw, Daewon Yang
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Publication number: 20120320057Abstract: A communications system includes an image data server configured to store a three dimensional (3D) geospatial model, and generate a series of two dimensional (2D) images corresponding to different vantage points for a given area of the 3D geospatial model. A mobile electronic device is configured to cooperate with the image data server and includes a display, and a processor coupled to the display. The processor is configured to present an initial image from the series of 2D images on the display corresponding to an initial vantage point, permit selection of a next vantage point, and display a next image of the series of 2D images on the display corresponding to the next vantage point.Type: ApplicationFiled: June 15, 2011Publication date: December 20, 2012Applicant: Harris CorporationInventors: Guillermo E. Gutierrez, Gilbert Christopher Duncan, Belinda R. Villegas
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Publication number: 20110238689Abstract: A system is for identifying a selected target in a geographic model. The system includes a database configured to store electronically a geographic model, different target model types with respective model-type metadata associated therewith, and different unique targets with unique target metadata associated therewith. A processor cooperates with the database and determines a proposed type-match between a selected target, with selected target metadata associated therewith, and one of the plurality of different target model types stored in the database based upon the selected target metadata and the model-type metadata. The processor also generates updated selected target metadata based upon confirmation of the proposed type-match, and determines a proposed unique target-match between the selected target and one of the different unique targets based upon confirmation of the proposed type-match and based upon the updated selected target metadata and the unique target metadata.Type: ApplicationFiled: March 29, 2010Publication date: September 29, 2011Applicant: Harris Corporation, Corporation of the State of DelawareInventors: Gilbert Christopher Duncan, Guillermo E. Gutierrez, Belinda Villegas
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Patent number: 6989353Abstract: A method is disclosed for reducing sag in drilling and completion fluids and in workover fluids. The method employs a drilling fluid comprising a low molecular weight polyalkyl methacrylate with an average molecular weight ranging from about 40,000 to about 90,000. This additive does not result in significantly increased viscosity of the fluid.Type: GrantFiled: June 18, 2003Date of Patent: January 24, 2006Assignee: Halliburton Energy Services, Inc.Inventors: Colin Temple, Andrew Forbes Paterson, Christopher Duncan Leith
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Publication number: 20060010637Abstract: This disclosure relates to mopping trolleys and has particular reference to mopping trolleys for facilitating the cleaning of a floor area. According to one aspect of the present invention there is provided a mopping trolley comprising carriage means capable of translation movement over a surface, a mop press assembly carried by said carriage means for expressing liquid from a mop head inserted into the press and at least two liquid receptacles, wherein a waste receptacle is arranged to receive waste liquid expressed from the mop press, and a clean receptacle is for providing a source of clean liquid for use in mopping.Type: ApplicationFiled: April 9, 2003Publication date: January 19, 2006Inventors: Christopher Duncan, Michael Gailes
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Publication number: 20060003636Abstract: According to the present invention there is provided an electrical appliance having a releasable cable connector for electrically connecting the appliance to a remote power supply, wherein a first junction means is adapted to provide the releasable electrical connection between the cable connector and the appliance, characterised by the provision of a second junction means adapted to provide a non-releasable, hard-wired electrical connection between an alternative cable connector and the appliance, wherein the first junction means and the second junction means are arranged and configured so that the selection and use of one of said junctions by attachment of one cable connector precludes the simultaneous selection of the other connector.Type: ApplicationFiled: April 29, 2003Publication date: January 5, 2006Inventors: Christopher Duncan, Michael Gailes
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Publication number: 20050248454Abstract: Methods and apparatus are described for marine asset security and tracking (MAST). A method includes transmitting identification data, location data and environmental state sensor data from a radio frequency tag. An apparatus includes a radio frequency tag that transmits identification data, location data and environmental state sensor data. Another method includes transmitting identification data and location data from a radio frequency tag using hybrid spread-spectrum modulation. Another apparatus includes a radio frequency tag that transmits both identification data and location data using hybrid spread-spectrum modulation.Type: ApplicationFiled: May 6, 2004Publication date: November 10, 2005Inventors: Gregory Hanson, Stephen Fulton Smith, Michael Moore, Eric Lesley Dobson, Jeffrey Blair, Christopher Duncan, Roberto Lenarduzzi
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Publication number: 20050246845Abstract: The disclosure relates to the floor scrubbing or finishing machines. There is provided a machine for scrubbing or finishing a floor surface comprising carriage means adapted for translational movement over a floor surface, a workhead, an electric motor carried by the carriage means and arranged in use to drive the workhead and battery support means adapted in use to support at least one battery as a source of electric power for driving the electric motor, wherein said battery support means are adapted to support said at least one battery so that said at least one battery can be positioned in a selected one of a range of positions relative to said workhead whereby the loading on said workhead can be varied as required.Type: ApplicationFiled: April 21, 2005Publication date: November 10, 2005Inventors: Christopher Duncan, John Findlay