Patents by Inventor Anthoniraj Lourdhusamy
Anthoniraj Lourdhusamy 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: 10175214Abstract: A sensor includes an electrode and a seed structure. The electrode is configured to measure current due to movement of particulate matter relative to the electrode. The seed structure is deposited on the electrode. The seed structure includes a plurality of elongated members extending outward from the surface of the electrode. The elongated members are configured to promote charge transfer to particles and/or agglomerates of the particulate matter during operation of the sensor.Type: GrantFiled: January 9, 2017Date of Patent: January 8, 2019Assignee: EMISENSE TECHNOLOGIES, LLCInventors: Klaus Allmendinger, Joe Fitzpatrick, Brett Henderson, Anthoniraj Lourdhusamy, Lee Sorensen, James Steppan, Gangquiang Wang
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Patent number: 9857326Abstract: A method for analysis of a gas stream. The method includes identifying an affected region of an affected waveform signal corresponding to at least one characteristic of the gas stream. The method also includes calculating a voltage-current time differential between the affected region of the affected waveform signal and a corresponding region of an original waveform signal. The affected region and the corresponding region of the waveform signals have a sensitivity specific to the at least one characteristic of the gas stream. The method also includes generating a value for the at least one characteristic of the gas stream based on the calculated voltage-current time differential.Type: GrantFiled: February 28, 2017Date of Patent: January 2, 2018Assignees: Lawrence Livermore National Security, LLC, EmiSense Technologies, LLCInventors: Leta Yar-Li Woo, Robert Scott Glass, Joseph Jay Fitzpatrick, Gangqiang Wang, Brett Tamatea Henderson, Anthoniraj Lourdhusamy, James John Steppan, Klaus Karl Allmendinger
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Patent number: 9857325Abstract: A device for signal processing. The device includes a signal generator, a signal detector, and a processor. The signal generator generates an original waveform. The signal detector detects an affected waveform. The processor is coupled to the signal detector. The processor receives the affected waveform from the signal detector. The processor also compares at least one portion of the affected waveform with the original waveform. The processor also determines a difference between the affected waveform and the original waveform. The processor also determines a value corresponding to a unique portion of the determined difference between the original and affected waveforms. The processor also outputs the determined value.Type: GrantFiled: February 28, 2017Date of Patent: January 2, 2018Assignees: Lawrence Livermore National Security, LLC, EmiSense Technologies, LLCInventors: Leta Yar-Li Woo, Robert Scott Glass, Joseph Jay Fitzpatrick, Gangqiang Wang, Brett Tamatea Henderson, Anthoniraj Lourdhusamy, James John Steppan, Klaus Karl Allmendinger
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Patent number: 9857239Abstract: A method for temperature analysis of a gas stream. The method includes identifying a temperature parameter of an affected waveform signal. The method also includes calculating a change in the temperature parameter by comparing the affected waveform signal with an original waveform signal. The method also includes generating a value from the calculated change which corresponds to the temperature of the gas stream.Type: GrantFiled: February 28, 2017Date of Patent: January 2, 2018Assignees: Lawrence Livermore National Security, LLC, EmiSense Technologies, LLCInventors: Leta Yar-Li Woo, Robert Scott Glass, Joseph Jay Fitzpatrick, Gangqiang Wang, Brett Tamatea Henderson, Anthoniraj Lourdhusamy, James John Steppan, Klaus Karl Allmendinger
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Publication number: 20170284899Abstract: A sensor includes an electrode and a seed structure. The electrode is configured to measure current due to movement of particulate matter relative to the electrode. The seed structure is deposited on the electrode. The seed structure includes a plurality of elongated members extending outward from the surface of the electrode. The elongated members are configured to promote charge transfer to particles and/or agglomerates of the particulate matter during operation of the sensor.Type: ApplicationFiled: January 9, 2017Publication date: October 5, 2017Applicant: EmiSense Technologies, LLCInventors: Klaus Allmendinger, Joe Fitzpatrick, Brett Henderson, Anthoniraj Lourdhusamy, Lee Sorensen, James Steppan, Gangquiang Wang
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Publication number: 20170234743Abstract: A device for signal processing. The device includes a signal generator, a signal detector, and a processor. The signal generator generates an original waveform. The signal detector detects an affected waveform. The processor is coupled to the signal detector. The processor receives the affected waveform from the signal detector. The processor also compares at least one portion of the affected waveform with the original waveform. The processor also determines a difference between the affected waveform and the original waveform. The processor also determines a value corresponding to a unique portion of the determined difference between the original and affected waveforms. The processor also outputs the determined value.Type: ApplicationFiled: February 28, 2017Publication date: August 17, 2017Inventors: Leta Yar-Li Woo, Robert Scott Glass, Joseph Jay Fitzpatrick, Gangqiang Wang, Brett Tamatea Henderson, Anthoniraj Lourdhusamy, James John Steppan, Klaus Karl Allmendinger
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Publication number: 20170234828Abstract: A method for analysis of a gas stream. The method includes identifying an affected region of an affected waveform signal corresponding to at least one characteristic of the gas stream. The method also includes calculating a voltage-current time differential between the affected region of the affected waveform signal and a corresponding region of an original waveform signal. The affected region and the corresponding region of the waveform signals have a sensitivity specific to the at least one characteristic of the gas stream. The method also includes generating a value for the at least one characteristic of the gas stream based on the calculated voltage-current time differential.Type: ApplicationFiled: February 28, 2017Publication date: August 17, 2017Inventors: Leta Yar-Li Woo, Robert Scott Glass, Joseph Jay Fitzpatrick, Gangqiang Wang, Brett Tamatea Henderson, Anthoniraj Lourdhusamy, James John Steppan, Klaus Karl Allmendinger
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Publication number: 20170234827Abstract: A device for signal processing. The device includes a signal generator, a signal detector, and a processor. The signal generator generates an original waveform. The signal detector detects an affected waveform. The processor is coupled to the signal detector. The processor receives the affected waveform from the signal detector. The processor also compares at least one portion of the affected waveform with the original waveform. The processor also determines a difference between the affected waveform and the original waveform. The processor also determines a value corresponding to a unique portion of the determined difference between the original and affected waveforms. The processor also outputs the determined value.Type: ApplicationFiled: February 28, 2017Publication date: August 17, 2017Inventors: Leta Yar-Li Woo, Robert Scott Glass, Joseph Jay Fitzpatrick, Gangqiang Wang, Brett Tamatea Henderson, Anthoniraj Lourdhusamy, James John Steppan, Klaus Karl Allmendinger
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Patent number: 9581564Abstract: A device for signal processing. The device includes a signal generator, a signal detector, and a processor. The signal generator generates an original waveform. The signal detector detects an affected waveform. The processor is coupled to the signal detector. The processor receives the affected waveform from the signal detector. The processor also compares at least one portion of the affected waveform with the original waveform. The processor also determines a difference between the affected waveform and the original waveform. The processor also determines a value corresponding to a unique portion of the determined difference between the original and affected waveforms. The processor also outputs the determined value.Type: GrantFiled: October 16, 2013Date of Patent: February 28, 2017Assignees: EmiSense Technologies, LLC, Lawrence Livermore National Security, LLCInventors: Leta Yar-Li Woo, Robert Scott Glass, Joseph Jay Fitzpatrick, Gangqiang Wang, Brett Tamatea Henderson, Anthoniraj Lourdhusamy, James John Steppan, Klaus Karl Allmendinger
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Patent number: 9541535Abstract: A sensor includes an electrode and a seed structure. The electrode is configured to measure current due to movement of particulate matter relative to the electrode. The seed structure is deposited on the electrode. The seed structure includes a plurality of elongated members extending outward from the surface of the electrode. The elongated members are configured to promote charge transfer to particles and/or agglomerates of the particulate matter during operation of the sensor.Type: GrantFiled: January 28, 2014Date of Patent: January 10, 2017Assignee: EmiSense Technologies, LLCInventors: Klaus Allmendinger, Joe Fitzpatrick, Brett Henderson, Anthoniraj Lourdhusamy, Lee Sorensen, James Steppan, Gangquiang Wang
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Publication number: 20150101937Abstract: A device for signal processing. The device includes a signal generator, a signal detector, and a processor. The signal generator generates an original waveform. The signal detector detects an affected waveform. The processor is coupled to the signal detector. The processor receives the affected waveform from the signal detector. The processor also compares at least one portion of the affected waveform with the original waveform. The processor also determines a difference between the affected waveform and the original waveform. The processor also determines a value corresponding to a unique portion of the determined difference between the original and affected waveforms. The processor also outputs the determined value.Type: ApplicationFiled: October 16, 2013Publication date: April 16, 2015Applicants: Lawrence Livermore National Security, LLC, EmiSense Technologies, LLCInventors: Leta Yar-Li Woo, Robert Scott Glass, Joseph Jay Fitzpatrick, Gangqiang Wang, Brett Tamatea Henderson, Anthoniraj Lourdhusamy, James John Steppan, Klaus Karl Allmendinger
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Publication number: 20140144208Abstract: A sensor includes an electrode and a seed structure. The electrode is configured to measure current due to movement of particulate matter relative to the electrode. The seed structure is deposited on the electrode. The seed structure includes a plurality of elongated members extending outward from the surface of the electrode. The elongated members are configured to promote charge transfer to particles and/or agglomerates of the particulate matter during operation of the sensor.Type: ApplicationFiled: January 28, 2014Publication date: May 29, 2014Applicant: EmiSense Technologies, LLCInventors: Klaus Allmendinger, Joe Fitzpatrick, Brett Henderson, Anthoniraj Lourdhusamy, Lee Sorensen, James Steppan, Gangquiang Wang
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Patent number: 8713991Abstract: A sensor assembly includes a voltage source, a sensor electrode, a grounded assembly, an integration capacitor, and a current meter. The sensor electrode is coupled to the voltage source to receive a voltage. The sensor electrode is disposed within a directed and controlled exhaust flow to facilitate particle agglomeration into particulate matter structures at a surface of the sensor electrode. The grounded assembly is coupled to a ground reference and disposed at a distance from the sensor electrode. The integration capacitor is coupled to a negative side of the voltage source to integrate in time current pulses from charge transfers from the sensor electrode of the particulate matter structures. The current meter is coupled to the voltage source to measure an integrated value of current supplied to the voltage source in response to charge transfers from the sensor electrode to the particulate matter structures in the exhaust flow.Type: GrantFiled: December 8, 2011Date of Patent: May 6, 2014Assignee: EmiSense Technologies, LLCInventors: Klaus Allmendinger, Brett Henderson, Anthoniraj Lourdhusamy, Lee Sorensen, James Steppan
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Patent number: 8671736Abstract: A sensor includes a housing, a central sensor electrode assembly, an insulating member, and a trace. The central sensor electrode assembly is coupled to a supply side of a voltage source. The insulating member is coupled between the housing and the central sensor electrode assembly. The insulating member circumscribes a section of the central sensor electrode assembly. The trace is coupled to the insulating member and circumscribes the section of the central sensor electrode assembly. The trace directs at least a portion of leakage current away from a voltage ground offset on an opposite side of the central sensor electrode assembly.Type: GrantFiled: March 29, 2013Date of Patent: March 18, 2014Assignee: EmiSense Technologies, LLCInventors: Klaus Allmendinger, Joe Fitzpatrick, Brett Henderson, Anthoniraj Lourdhusamy, Lee Sorensen, James Steppan, Gangquiang Wang
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Publication number: 20120312074Abstract: A sensor assembly to measure particulate matter is described. The sensor assembly includes a voltage source, a sensor electrode, a grounded assembly, an integration capacitor, and a current meter. The sensor electrode is coupled to the voltage source to receive a voltage. The sensor electrode is disposed within a directed and controlled exhaust flow within the sensor assembly to facilitate particle agglomeration into particulate matter structures at a surface of the sensor electrode. The grounded assembly is coupled to a ground reference and disposed at a distance from the sensor electrode. The integration capacitor is coupled to a negative side of the voltage source. The integration capacitor is configured to integrate in time current pulses from charge transfers from the sensor electrode of the particulate matter structures.Type: ApplicationFiled: December 8, 2011Publication date: December 13, 2012Applicant: EMISENSE TECHNOLOGIES, LLCInventors: Klaus Allmendinger, Brett Henderson, Anthoniraj Lourdhusamy, Lee Sorenson, James Steppan
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Patent number: 7739924Abstract: A flow head for a gas sensor having a sensing element is provided. The flow head includes a body at least partially defining a cavity in thermal communication with the sensing element. The body includes an inlet port located within an annular surface of the body and an outlet port located within the annular surface of the body. The body also includes an inlet passage offset from and parallel to the cavity, wherein the inlet passage configures the inlet port and the cavity to be in fluid communication with one another. The body further includes an outlet passage offset from and parallel to the cavity, wherein the outlet passage configures the outlet port and the cavity to be in fluid communication with one another.Type: GrantFiled: February 27, 2008Date of Patent: June 22, 2010Assignee: Caterpillar Inc.Inventors: Anthoniraj Lourdhusamy, Balakrishnan G. Nair
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Publication number: 20090211333Abstract: A flow head for a gas sensor having a sensing element is provided. The flow head includes a body at least partially defining a cavity in thermal communication with the sensing element. The body includes an inlet port located within an annular surface of the body and an outlet port located within the annular surface of the body. The body also includes an inlet passage offset from and parallel to the cavity, wherein the inlet passage configures the inlet port and the cavity to be in fluid communication with one another. The body further includes an outlet passage offset from and parallel to the cavity, wherein the outlet passage configures the outlet port and the cavity to be in fluid communication with one another.Type: ApplicationFiled: February 27, 2008Publication date: August 27, 2009Inventors: Anthoniraj Lourdhusamy, Balakrishnan G. Nair