Patents by Inventor Selaka Bandara Bulumulla
Selaka Bandara Bulumulla 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: 9250305Abstract: An imaging system is presented. The imaging system includes a cradle, and a first sheet of coils disposed inside of the cradle such that a first end of the first sheet of coils protrudes out of the cradle and a second end of the first sheet of coils is coupled to a structure, wherein a requisite expanse of the first sheet of coils is flexibly pulled out from the cradle by pulling the first end.Type: GrantFiled: May 31, 2012Date of Patent: February 2, 2016Assignee: General Electric CompanyInventors: Selaka Bandara Bulumulla, Thomas Kwok-Fah Foo, Christopher Judson Hardy
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Patent number: 9194819Abstract: An inspection system for a metal-reinforced concrete structure is described. The system includes a radio frequency (RF) system configured to be movable with respect to a surface of the concrete structure while transmitting radio signals into the interior of the structure, and receiving reflected radio signals. The system also includes a processor configured to process the reflected radio signals, so as to obtain a focused image of the reinforcement in at least one selected region within the concrete structure. The image corresponds to the physical condition of the reinforcement. A method for determining the condition of a reinforced concrete structure is also described, utilizing the inspection system.Type: GrantFiled: October 25, 2013Date of Patent: November 24, 2015Assignee: General Electrics CompanyInventors: Selaka Bandara Bulumulla, Joseph Alfred Iannotti, James Patrick Carneal, Mahesh Panicker
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Patent number: 9069998Abstract: Exemplary embodiments of the present disclosure are directed to estimating an electrical property of tissue using MR images. Complex values having real components and imaginary components are generated and are associated with pixels in one or more MR images that corresponding to a region of tissue for which the electrical property is constant. An estimated value of the electrical property for the region of tissue is determined based on a least squared error estimation applied to the complex values.Type: GrantFiled: October 15, 2012Date of Patent: June 30, 2015Assignee: General Electric CompanyInventors: Selaka Bandara Bulumulla, Ileana Hancu, Seung-Kyun Lee
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Publication number: 20150153431Abstract: Systems and methods for determining electrical properties using Magnetic Resonance Imaging (MRI) are provided. One method includes applying an ultra-short echo time (TE) pulse sequence in a Magnetic Resonance Imaging (MRI) system and acquiring a complex B1+B1? quantity from an object following the application of the ultra-short TE pulse sequence, where B1+ is a complex amplitude of a transmit radio-frequency (RF) magnetic field and B1? is a complex amplitude of a receive RF magnetic field. The method also includes estimating, with a processor, one or more electrical properties of the object using the complex amplitudes of the transmit RF magnetic field and the receive RF magnetic field.Type: ApplicationFiled: December 3, 2013Publication date: June 4, 2015Applicant: General Electric CompanyInventors: Ileana Hancu, Selaka Bandara Bulumulla, Florian Wiesinger, Laura Irene Sacolick, Seung Kyun Lee
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Publication number: 20150115980Abstract: An inspection system for a metal-reinforced concrete structure is described. The system includes a radio frequency (RF) system configured to be movable with respect to a surface of the concrete structure while transmitting radio signals into the interior of the structure, and receiving reflected radio signals. The system also includes a processor configured to process the reflected radio signals, so as to obtain a focused image of the reinforcement in at least one selected region within the concrete structure. The image corresponds to the physical condition of the reinforcement. A method for determining the condition of a reinforced concrete structure is also described, utilizing the inspection system.Type: ApplicationFiled: October 25, 2013Publication date: April 30, 2015Applicant: General Electric CompanyInventors: Selaka Bandara Bulumulla, Joseph Alfred Iannotti, James Patrick Carneal, Mahesh Panicker
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Patent number: 8942931Abstract: A system and method for determining electrical properties using Magnetic Resonance Imaging (MRI) are provided. One method includes determining a magnitude of an MRI B1+ field applied to an object, determining a phase of the MRI B1+ field applied to the object and combining the determined magnitude and phase to determine a complex B1+ field estimate. The method further includes estimating one or more electrical properties of the object using the complex B1+ field estimate by directly solving at least one difference equation.Type: GrantFiled: June 30, 2011Date of Patent: January 27, 2015Assignee: General Electric CompanyInventors: Selaka Bandara Bulumulla, Laura Sacolick, Desmond Teck Beng Yeo, Seung-Kyun Lee, Thomas Kwok-Fah Foo, William Dixon
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Patent number: 8823378Abstract: A system for inductively communicating signals in a magnetic resonance imaging system is presented. The system in one embodiment includes a first array of primary coils disposed on a patient cradle of the imaging system, and configured to acquire data from a patient positioned on the patient cradle. Additionally, the system includes a second array of secondary coils disposed under the patient cradle, wherein a number of secondary coils is less than or equal to the number of primary coils, wherein the first array of primary coils is configured to inductively communicate the acquired data to the second array of secondary coils.Type: GrantFiled: December 23, 2010Date of Patent: September 2, 2014Assignee: General Electric CompanyInventors: Christopher Judson Hardy, Thomas Kwok-Fah Foo, Robert Steven Stormont, Kenneth William Rohling, Selaka Bandara Bulumulla
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Patent number: 8816698Abstract: A diagnostic system for detecting faults in electrical wiring, and manufacturing method thereof is provided. The diagnostic system includes a diagnostic sensor coupled to a data acquisition system. The diagnostic sensor includes a sensor housing with a flexible coil sensor disposed inside. The sensor housing includes a base portion, lid portion, and a joining portion, wherein one end of the lid portion is detachably coupled to a first end of the base portion and another end of the lid portion is coupled to a second end of the base portion via the joining portion. The diagnostic sensor further includes a connector coupled to the flexible coil sensor.Type: GrantFiled: October 28, 2010Date of Patent: August 26, 2014Assignee: General Electric CompanyInventors: Meena Ganesh, David Mulford Shaddock, Selaka Bandara Bulumulla
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Publication number: 20140184217Abstract: A system includes a multi-nuclear magnetic resonance (MR) receiving coil, wherein the receiving coil includes a frequency tuning component configured operate the receiving coil at either a first frequency or a second frequency. The receiving coil also includes an impedance matching component configured to maintain a substantially constant impedance of the receiving coil when the receiving coil is operated at either the first frequency or the second frequency. Furthermore, the receiving coil is configured to measure a first nucleus when operated at the first frequency, and wherein the receiving coil is configured to measure a second nucleus when operated at the second frequency.Type: ApplicationFiled: December 27, 2012Publication date: July 3, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Selaka Bandara Bulumulla, Joseph Alfred Iannotti, Eric William Fiveland, Fraser Robb
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Publication number: 20140103925Abstract: Exemplary embodiments are directed to estimating an electrical property of tissue using Magnetic Resonance (MR) images. In exemplary embodiments, complex MR images of a target tissue are obtained. An estimated value of an electrical property of the target tissue is determined based on complex values of the pixels in the complex MR images. The complex values are proportional to the product of the transmit radio frequency magnetic field and the receive RF magnetic field.Type: ApplicationFiled: October 15, 2012Publication date: April 17, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Ileana Hancu, Selaka Bandara Bulumulla, Seung-Kyun Lee
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Publication number: 20140105476Abstract: Exemplary embodiments of the present disclosure are directed to estimating an electrical property of tissue using MR images. Complex values having real components and imaginary components are generated and are associated with pixels in one or more MR images that corresponding to a region of tissue for which the electrical property is constant. An estimated value of the electrical property for the region of tissue is determined based on a least squared error estimation applied to the complex values.Type: ApplicationFiled: October 15, 2012Publication date: April 17, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Selaka Bandara Bulumulla, Ileana Hancu, Seung-Kyun Lee
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Publication number: 20140091791Abstract: A system for inductively communicating signals in a magnetic resonance imaging system is presented. The system includes first array of primary coils configured to acquire data from a patient positioned on a patient cradle. Furthermore, the system includes a second array of secondary coils operatively coupled to the first array of primary coils. Moreover, the system includes a third array of tertiary coils disposed at a determined distance from the second array of secondary coils. In addition, the system includes a tuning unit operatively coupled to the third array of tertiary coils by a cable having a quarter-wave electrical wavelength and configured to control the first array of primary coils through impedance transformation, where the second array of secondary coils is configured to inductively communicate the acquired data to the third array of tertiary coils.Type: ApplicationFiled: September 28, 2012Publication date: April 3, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Selaka Bandara Bulumulla, Christopher Judson Hardy, Karthikeyan Veeraswamy Sathyamurthy
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Patent number: 8674682Abstract: A high frequency current transformer (HFCT) sensor for detecting partial discharges produced by a component is disclosed. The HFCT sensor includes at least one electrically conductive pattern formed on a substrate, where the substrate comprises multiple segmented regions connected by intermediate regions for folding along multiple fold lines between the segmented regions to form the HFCT sensor. A system for monitoring at least one component of an aircraft wiring system is also disclosed. The monitoring system includes at least one of the HFCT sensors for detecting partial discharges produced by the aircraft wiring system component. The monitoring system further includes a data acquisition system configured to monitoring signals from the HFCT sensor(s).Type: GrantFiled: September 30, 2009Date of Patent: March 18, 2014Assignee: General Electric CompanyInventors: Selaka Bandara Bulumulla, Jeffrey Michael Ashe
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Publication number: 20130320981Abstract: An imaging system is presented. The imaging system includes a cradle, and a first sheet of coils disposed inside of the cradle such that a first end of the first sheet of coils protrudes out of the cradle and a second end of the first sheet of coils is coupled to a structure, wherein a requisite expanse of the first sheet of coils is flexibly pulled out from the cradle by pulling the first end.Type: ApplicationFiled: May 31, 2012Publication date: December 5, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Selaka Bandara Bulumulla, Thomas Kwok-Fah Foo, Christopher Judson Hardy
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Publication number: 20130320982Abstract: An imaging system is presented. The imaging system includes a storage structure that stores a first sheet of coils inside a cradle, wherein the storage structure includes a plurality of first set of rotatable bodies and a plurality of second set of rotatable bodies, and a plurality of springs that are coupled to one or more of the plurality of second set of rotatable bodies, wherein the first sheet of coils is disposed around the plurality of first set of rotatable bodies, the plurality of second set of rotatable bodies and the plurality of springs, and wherein a first end of the first sheet of coils protrudes out of the cradle.Type: ApplicationFiled: May 31, 2012Publication date: December 5, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Selaka Bandara Bulumulla, Thomas Kwok-Fah Foo, Christopher Judson Hardy
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Publication number: 20120161767Abstract: A system for inductively communicating signals in a magnetic resonance imaging system is presented. The system in one embodiment includes a first array of primary coils disposed on a patient cradle of the imaging system, and configured to acquire data from a patient positioned on the patient cradle. Additionally, the system includes a second array of secondary coils disposed under the patient cradle, wherein a number of secondary coils is less than or equal to the number of primary coils, wherein the first array of primary coils is configured to inductively communicate the acquired data to the second array of secondary coils.Type: ApplicationFiled: December 23, 2010Publication date: June 28, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Christopher Judson Hardy, Thomas Kwok-Fah Foo, Robert Steven Stormont, Kenneth William Rohling, Selaka Bandara Bulumulla
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Publication number: 20120161768Abstract: A system for communicating data in a magnetic resonance imaging system in one embodiment includes a first array of receiver coils disposed on a first flexible substrate having at least one edge, wherein the flexible substrate is configured to be disposed upon or under a section of a patient under exam, wherein the first array of receiver coils is configured to acquire imaging data from the patient positioned on a patient support in the imaging system. Additionally, the system includes at least one blanket connector disposed along the at least one edge of the first flexible substrate, wherein the at least one blanket connector is electrically coupled to the first array of receiver coils in the first flexible substrate.Type: ApplicationFiled: December 23, 2010Publication date: June 28, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Christopher Judson Hardy, Thomas Kwok-Fah Foo, Robert Steven Stormont, Kenneth William Rohling, Selaka Bandara Bulumulla
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Patent number: 7994788Abstract: A hybrid microstrip coil for magnetic resonance imaging including a microstrip assembly aligned in the superior/inferior (S/I) direction. In one example, the microstrip assembly has conductive strips disposed on one side of a substrate corresponding shield planes disposed on the other side of the substrate. The microstrip assemblies are coupled together by coaxial sections forming a continuous transmission line and having a specific overall electrical length.Type: GrantFiled: October 30, 2009Date of Patent: August 9, 2011Assignee: General Electric CompanyInventors: Christopher Judson Hardy, Kenneth William Rohling, Selaka Bandara Bulumulla
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Publication number: 20110074397Abstract: A high frequency current transformer (HFCT) sensor for detecting partial discharges produced by a component is disclosed. The HFCT sensor includes at least one electrically conductive pattern formed on a substrate, where the substrate comprises multiple segmented regions connected by intermediate regions for folding along multiple fold lines between the segmented regions to form the HFCT sensor. A system for monitoring at least one component of an aircraft wiring system is also disclosed. The monitoring system includes at least one of the HFCT sensors for detecting partial discharges produced by the aircraft wiring system component. The monitoring system further includes a data acquisition system configured to monitoring signals from the HFCT sensor(s).Type: ApplicationFiled: September 30, 2009Publication date: March 31, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Selaka Bandara Bulumulla, Jeffrey Michael Ashe
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Publication number: 20110043219Abstract: A diagnostic system for detecting faults in electrical wiring, and manufacturing method thereof is provided. The diagnostic system includes a diagnostic sensor coupled to a data acquisition system. The diagnostic sensor includes a sensor housing with a flexible coil sensor disposed inside. The sensor housing includes a base portion, lid portion, and a joining portion, wherein one end of the lid portion is detachably coupled to a first end of the base portion and another end of the lid portion is coupled to a second end of the base portion via the joining portion. The diagnostic sensor further includes a connector coupled to the flexible coil sensor.Type: ApplicationFiled: October 28, 2010Publication date: February 24, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Meena Ganesh, David Mulford Shaddock, Selaka Bandara Bulumulla