Patents by Inventor Keith William Johnson
Keith William Johnson 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: 11969286Abstract: A system for visualization and quantification of ultrasound imaging data according to embodiments of the present disclosure may include a display unit, and a processor communicatively coupled to the display unit and to an ultrasound imaging apparatus for generating an image from ultrasound data representative of a bodily structure and fluid flowing within the bodily structure. The processor may be configured to estimate axial and lateral velocity components of the fluid flowing within the bodily structure, determine a plurality of flow directions within the image based on the axial and lateral velocity components, differentially encode the flow directions based on flow direction angle to generate a flow direction map, and cause the display unit to concurrently display the image including the bodily structure overlaid with the flow direction map.Type: GrantFiled: November 22, 2022Date of Patent: April 30, 2024Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Hua Xie, Shiying Wang, Sheng-Wen Huang, Francois Guy Gerard Marie Vignon, Keith William Johnson, Liang Zhang, David Hope Simpson
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Patent number: 11965959Abstract: The present disclosure describes ultrasound systems configured to enhance flow imaging and analysis by adaptively adjusting one or more imaging parameters in response to acquired flow measurements. Example systems can include an ultrasound transducer and one or more processors. Using the system components, mean flow velocity magnitude and acceleration can be determined within a target region during an acquisition phase, which may include a cardiac cycle. One or more adjusted flow imaging parameters, such as adjusted ensemble length, temporal smoothing filter length and/or step size, can be determined based on the acquired flow measurements to increase the signal quality of newly acquired ultrasound echo signals. The adjusted flow imaging parameters can then be applied by the ultrasound transducer during a second acquisition phase.Type: GrantFiled: October 14, 2019Date of Patent: April 23, 2024Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Shiying Wang, Sheng-Wen Huang, Hua Xie, Keith William Johnson, Liang Zhang, Thanasis Loupas, Truong Huy Nguyen
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Patent number: 11916358Abstract: In one or more embodiments, a power distribution unit may include: multiple power distribution module (PDM) receptacles, in which each PDM receptacle is configured to receive a PDM along a longitudinal axis of the PDM receptacle and is configured with multiple conductors disposed along a plane orthogonal to the longitudinal axis; first multiple power outlets coupled to a first PDM receptacle of the multiple PDM receptacles, in which the first multiple power outlets are configured to provide first single-phase power to first multiple information handling systems housed by a rack; and second multiple power outlets coupled to a second PDM receptacle of the multiple PDM receptacles, in which the second multiple power outlets are configured to provide second single-phase power to second multiple information handling systems housed by the rack. In one or more embodiments, a monitoring device of the power distribution unit may monitor one or more environmental attributes.Type: GrantFiled: June 3, 2022Date of Patent: February 27, 2024Assignee: Dell Products L.P.Inventors: Francis William French, Kanu Dhiru Patel, Keith Clifford Johnson
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Publication number: 20230329669Abstract: A system for visualization and quantification of ultrasound imaging data may include a display unit, and a processor communicatively coupled to the display unit and to an ultrasound imaging apparatus for generating an image from ultrasound data representative of a bodily structure and fluid flowing within the bodily structure. The processor may be configured to generate vector field data corresponding to the fluid flow, wherein the vector field data comprises axial and lateral velocity components of the fluid, extract spatiotemporal information from the vector field data at one or more user-selected points within the image, and cause the display unit to concurrently display the spatiotemporal information at the one or more user-selected points with the image including a graphical representation of the vector field data overlaid on the image, wherein the spatiotemporal information includes at least one of a magnitude and an angle of the fluid flow.Type: ApplicationFiled: June 1, 2023Publication date: October 19, 2023Inventors: Shiying Wang, Sheng-Wen Huang, Hua Xie, Francois Guy Gerard Marie Vignon, Liang Zhang, Keith William Johnson
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Patent number: 11701081Abstract: A system for visualization and quantification of ultrasound imaging data may include a display unit, and a processor communicatively coupled to the display unit and to an ultrasound imaging apparatus for generating an image from ultrasound data representative of a bodily structure and fluid flowing within the bodily structure. The processor may be configured to generate vector field data corresponding to the fluid flow, wherein the vector field data comprises axial and lateral velocity components of the fluid, extract spatiotemporal information from the vector field data at one or more user-selected points within the image, and cause the display unit to concurrently display the spatiotemporal information at the one or more user-selected points with the image including a graphical representation of the vector field data overlaid on the image, wherein the spatiotemporal information includes at least one of a magnitude and an angle of the fluid flow.Type: GrantFiled: March 26, 2018Date of Patent: July 18, 2023Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Shiying Wang, Sheng-Wen Huang, Hua Xie, Francois Guy Gerard Marie Vignon, Liang Zhang, Keith William Johnson
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Publication number: 20230206066Abstract: Disclosed herein are system, method, and computer program embodiments for an improved spiking neural network (SNN) configured to learn and perform unsupervised, semi-supervised, and supervised extraction of features from an input dataset. An embodiment operates by receiving a modification request to modify a base neural network, having N layers and a plurality of spiking neurons, trained using a primary training dataset. The base neural network is modified to include supplementary spiking neurons in the Nth or N + 1th layer of the base neural network. The embodiment includes receiving a secondary training dataset and determining membrane potential values of one or more supplementary spiking neurons in the Nth or Nth + 1 layer which learn features based on secondary training data set to select a supplementary/winning spiking neuron. The embodiment performs a learning function for the modified neural network based on the winning spiking neuron.Type: ApplicationFiled: December 19, 2022Publication date: June 29, 2023Applicant: BrainChip, Inc.Inventors: Douglas McLELLAND, Kristofor D. CARLSON, Keith William JOHNSON, Milind JOSHI
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Publication number: 20230085700Abstract: A system for visualization and quantification of ultrasound imaging data according to embodiments of the present disclosure may include a display unit, and a processor communicatively coupled to the display unit and to an ultrasound imaging apparatus for generating an image from ultrasound data representative of a bodily structure and fluid flowing within the bodily structure. The processor may be configured to estimate axial and lateral velocity components of the fluid flowing within the bodily structure, determine a plurality of flow directions within the image based on the axial and lateral velocity components, differentially encode the flow directions based on flow direction angle to generate a flow direction map, and cause the display unit to concurrently display the image including the bodily structure overlaid with the flow direction map.Type: ApplicationFiled: November 22, 2022Publication date: March 23, 2023Inventors: Hua Xie, Shiying Wang, Sheng-Wen Huang, Francois Guy Gerard Marie Vignon, Keith William Johnson, Liang Zhang, David Hope Simpson
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Patent number: 11534131Abstract: A system for visualization and quantification of ultrasound imaging data according to embodiments of the present disclosure may include a display unit, and a processor communicatively coupled to the display unit and to an ultrasound imaging apparatus for generating an image from ultrasound data representative of a bodily structure and fluid flowing within the bodily structure. The processor may be configured to estimate axial and lateral velocity components of the fluid flowing within the bodily structure, determine a plurality of flow directions within the image based on the axial and lateral velocity components, differentially encode the flow directions based on flow direction angle to generate a flow direction map, and cause the display unit to concurrently display the image including the bodily structure overlaid with the flow direction map.Type: GrantFiled: May 25, 2018Date of Patent: December 27, 2022Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Hua Xie, Shiying Wang, Sheng-Wen Huang, Francois Guy Gerard Marie Vignon, Keith William Johnson, Liang Zhang, David Hope Simpson
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Patent number: 11481880Abstract: A method of power Doppler imaging may include receiving a plurality of temporally sequential frames of wall-filtered power Doppler signals, wherein the plurality of temporally sequential frames includes at least one previously adjusted output frame. The method may further include adjusting at least one of the plurality of temporally sequential frames to produce an adjusted output frame and generating a power Doppler image based, at least in part, on the adjusted output frame. The adjusting may involve filtering the plurality of temporally sequential frames to suppress the high spatial frequency and high temporal frequency content to produce the adjusted output frame.Type: GrantFiled: April 17, 2018Date of Patent: October 25, 2022Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Liang Zhang, David Hope Simpson, Keith William Johnson
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Publication number: 20220233171Abstract: The present disclosure describes systems and methods for determining if a feature of interest is present in a volume or plane scanned by an imaging system. In examples, one or more imaging planes are analyzed for anatomical landmarks to determine whether a feature of interest is present. If the feature of interest is present, scan parameters may be determined to scan an adjusted volume that includes the feature of interest. In some applications, the adjusted volume may allow the imaging system to increase a volume rate.Type: ApplicationFiled: May 5, 2020Publication date: July 28, 2022Inventors: KEITH WILLIAM JOHNSON, ANNE HOLMES
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Patent number: 11398023Abstract: A system according to the present disclosure may include a display unit, a processor communicatively coupled to the display unit and to an ultrasound imaging apparatus for generating an image from ultrasound data representative of a bodily structure and fluid flowing within the bodily structure. The processor may be configured to generate vector field data including axial and lateral (or transverse) velocity components of the fluid flowing within the bodily structure, calculate velocity profiles for a plurality of locations along a wall of the bodily structure based on the axial and lateral velocity components, generate wall shear stress (WSS) visualization data based, at least in part, on the velocity profiles, and cause the display unit to concurrently display the image including the bodily structure overlaid with the WSS visualization data.Type: GrantFiled: May 4, 2018Date of Patent: July 26, 2022Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Shiying Wang, Sheng-Wen Huang, Hua Xie, Francois Guy Gerard Marie Vignon, Keith William Johnson, Liang Zhang
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Patent number: 11238562Abstract: An ultrasound system with a deep learning neural network feature is used to eliminate haze artifacts in B mode images of the carotid artery by analysis of orthogonal information. In a described implementation the orthogonal information comprises the structural information of a B mode image and motion information of the same field of view as that of the B mode image. In another embodiment the neural network reduces haze artifacts by reducing TGC gain at the depth of artifacts.Type: GrantFiled: August 2, 2018Date of Patent: February 1, 2022Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Anup Agarwal, Keith William Johnson, Liang Zhang, Earl M. Canfield
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Publication number: 20210373154Abstract: The present disclosure describes ultrasound systems configured to enhance flow imaging and analysis by adaptively adjusting one or more imaging parameters in response to acquired flow measurements. Example systems can include an ultrasound transducer and one or more processors. Using the system components, mean flow velocity magnitude and acceleration can be determined within a target region during an acquisition phase, which may include a cardiac cycle. One or more adjusted flow imaging parameters, such as adjusted ensemble length, temporal smoothing filter length and/or step size, can be determined based on the acquired flow measurements to increase the signal quality of newly acquired ultrasound echo signals. The adjusted flow imaging parameters can then be applied by the ultrasound transducer during a second acquisition phase.Type: ApplicationFiled: October 14, 2019Publication date: December 2, 2021Inventors: SHIYING WANG, SHENG-WEN HUANG, HUA XIE, KEITH WILLIAM JOHNSON, LIANG ZHANG, THANASIS LOUPAS, TRUONG HUY NGUYEN
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Publication number: 20210145399Abstract: A system for visualization and quantification of ultrasound imaging data according to embodiments of the present disclosure may include a display unit, and a processor communicatively coupled to the display unit and to an ultrasound imaging apparatus for generating an image from ultrasound data representative of a bodily structure and fluid flowing within the bodily structure. The processor may be configured to estimate axial and lateral velocity components of the fluid flowing within the bodily structure, determine a plurality of flow directions within the image based on the axial and lateral velocity components, differentially encode the flow directions based on flow direction angle to generate a flow direction map, and cause the display unit to concurrently display the image including the bodily structure overlaid with the flow direction map.Type: ApplicationFiled: May 25, 2018Publication date: May 20, 2021Applicant: KONINKLIJKE PHILIPS N.V.Inventors: HUA XIE, SHIYING WANG, SHENG-WEN HUANG, FRANCOIS GUY GERARD MARIE VIGNON, KEITH WILLIAM JOHNSON, LIANG ZHANG, DAVID HOPE SIMPSON
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Publication number: 20210106305Abstract: A system for visualization and quantification of ultrasound imaging data may include a display unit, and a processor communicatively coupled to the display unit and to an ultrasound imaging apparatus for generating an image from ultrasound data representative of a bodily structure and fluid flowing within the bodily structure. The processor may be configured to generate vector field data corresponding to the fluid flow, wherein the vector field data comprises axial and lateral velocity components of the fluid, extract spatiotemporal information from the vector field data at one or more user-selected points within the image, and cause the display unit to concurrently display the spatiotemporal information at the one or more user-selected points with the image including a graphical representation of the vector field data overlaid on the image, wherein the spatiotemporal information includes at least one of a magnitude and an angle of the fluid flow.Type: ApplicationFiled: March 26, 2018Publication date: April 15, 2021Inventors: Shiying WANG, Sheng-Wen HUANG, Hua XIE, Francois Guy Gerard Marie VIGNON, Liang ZHANG, Keith William JOHNSON
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Publication number: 20200184614Abstract: A method of power Doppler imaging may include receiving a plurality of temporally sequential frames of wall-filtered power Doppler signals, wherein the plurality of temporally sequential frames includes at least one previously adjusted output frame. The method may further include adjusting at least one of the plurality of temporally sequential frames to produce an adjusted output frame and generating a power Doppler image based, at least in part, on the adjusted output frame. The adjusting may involve filtering the plurality of temporally sequential frames to suppress the high spatial frequency and high temporal frequency content to produce the adjusted output frame.Type: ApplicationFiled: April 17, 2018Publication date: June 11, 2020Inventors: LIANG ZHANG, DAVID HOPE SIMPSON, KEITH WILLIAM JOHNSON
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Publication number: 20200175652Abstract: An ultrasound system with a deep learning neural network feature is used to eliminate haze artifacts in B mode images of the carotid artery by analysis of orthogonal information. In a described implementation the orthogonal information comprises the structural information of a B mode image and motion information of the same field of view as that of the B mode image. In another embodiment the neural network reduces haze artifacts by reducing TGC gain at the depth of artifacts.Type: ApplicationFiled: August 2, 2018Publication date: June 4, 2020Applicant: KONINKLIJKE PHILIPS N.V.Inventors: Anup Agarwal, Keith William Johnson, Liang Zhang, Earl M. Canfield
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Publication number: 20200126219Abstract: A system according to the present disclosure may include a display unit, a processor communicatively coupled to the display unit and to an ultrasound imaging apparatus for generating an image from ultrasound data representative of a bodily structure and fluid flowing within the bodily structure. The processor may be configured to generate vector field data including axial and lateral (or transverse) velocity components of the fluid flowing within the bodily structure, calculate velocity profiles for a plurality of locations along a wall of the bodily structure based on the axial and lateral velocity components, generate wall shear stress (WSS) visualization data based, at least in part, on the velocity profiles, and cause the display unit to concurrently display the image including the bodily structure overlaid with the WSS visualization data.Type: ApplicationFiled: May 4, 2018Publication date: April 23, 2020Inventors: SHIYING WANG, SHENG-WEN HUANG, HUA XIE, FRANCOIS GUY GERARD MARIE VIGNON, KEITH WILLIAM JOHNSON, LIANG ZHANG
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Patent number: 10368844Abstract: An ultrasound system with a matrix array (500) probe (10) operable in the biplane mode is used to assess stenosis of a blood vessel by simultaneously displaying two color Doppler biplane images (60a, 60b) of the vessel, one a longitudinal cross-sectional view (60a) and the other a transverse cross-sectional view (60b). The two image planes intersect along a Doppler beam line (68) used for PW Doppler. A sample volume graphic (SV) is positioned over the blood vessel at the peak velocity location in one image, then positioned over the blood vessel at the peak velocity location in the other image. As the sample volume location is moved in one image, the plane and/or sample volume location of the other image is adjusted correspondingly. Spectral Doppler data (62) is then acquired and displayed from the sample volume location.Type: GrantFiled: September 27, 2013Date of Patent: August 6, 2019Assignee: Koninklijke Philips N.V.Inventors: James Robertson Jago, Keith William Johnson, Ashraf Saad, David Allen Hull
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Publication number: 20150250453Abstract: An ultrasound system with a matrix array (500) probe (10) operable in the biplane mode is used to assess stenosis of a blood vessel by simultaneously displaying two color Doppler biplane images (60a, 60b) of the vessel, one a longitudinal cross-sectional view (60a) and the other a transverse cross-sectional view (60b). The two image planes intersect along a Doppler beam line (68) used for PW Doppler. A sample volume graphic (SV) is positioned over the blood vessel at the peak velocity location in one image, then positioned over the blood vessel at the peak velocity location in the other image. As the sample volume location is moved in one image, the plane and/or sample volume location of the other image is adjusted correspondingly. Spectral Doppler data (62) is then acquired and displayed from the sample volume location.Type: ApplicationFiled: September 27, 2013Publication date: September 10, 2015Inventors: James Robertson Jago, Keith William Johnson, Ashraf Saad, David Allen Hull