Patents by Inventor James V. Howard
James V. Howard 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: 10481079Abstract: An embodiment of a path length calibration system is described that comprises a swing arm coupled to a first surface; a base coupled to a second surface configured to receive the sample; a position sensor system comprising a first component coupled to the swing arm and a second component coupled to the base, wherein the position sensor system is configured to provide an output voltage when the swing arm is in a down position; and a processor configured to calibrate a zero path length using the output voltage.Type: GrantFiled: March 14, 2018Date of Patent: November 19, 2019Assignee: Thermo Electron Scientific Instruments LLCInventors: Damian W. Ashmead, James V. Howard, Kevin K. Kim, Andrew Martin Braasch
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Publication number: 20180202919Abstract: An embodiment of a path length calibration system is described that comprises a swing arm coupled to a first surface; a base coupled to a second surface configured to receive the sample; a position sensor system comprising a first component coupled to the swing arm and a second component coupled to the base, wherein the position sensor system is configured to provide an output voltage when the swing arm is in a down position; and a processor configured to calibrate a zero path length using the output voltage.Type: ApplicationFiled: March 14, 2018Publication date: July 19, 2018Inventors: Damian W. ASHMEAD, James V. HOWARD, Kevin K. KIM, Andrew Martin BRAASCH
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Patent number: 9952139Abstract: An apparatus includes a first pedestal surface coupled to i) a swing arm and to ii) a light source. The apparatus further includes a magnet, a base plate, a mechanical stop coupled to the base plate, and a second pedestal surface mechanically coupled to said base plate and configured to receive a liquid sample, said second pedestal surface being coupled to a spectrometer. The apparatus further includes a magnetic flux sensor located between north and south magnetic flux fields of the magnet such that the magnetic flux reaching the sensor while the mechanical stop is in physical contact with the swing arm provides a linear range of output of the magnetic flux sensor, and a processor adapted to calibrate the point for minimum optical path length using a threshold magnetic flux field emitted from the magnet and detected by the magnetic flux sensor.Type: GrantFiled: September 12, 2016Date of Patent: April 24, 2018Assignee: Thermo Electron Scientific Instruments LLCInventors: Damian W. Ashmead, James V. Howard, Kevin K. Kim, Andrew Martin Braasch
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Publication number: 20170082533Abstract: An apparatus includes a first pedestal surface coupled to i) a swing arm and to ii) a light source. The apparatus further includes a magnet, a base plate, a mechanical stop coupled to the base plate, and a second pedestal surface mechanically coupled to said base plate and configured to receive a liquid sample, said second pedestal surface being coupled to a spectrometer. The apparatus further includes a magnetic flux sensor located between north and south magnetic flux fields of the magnet such that the magnetic flux reaching the sensor while the mechanical stop is in physical contact with the swing arm provides a linear range of output of the magnetic flux sensor, and a processor adapted to calibrate the point for minimum optical path length using a threshold magnetic flux field emitted from the magnet and detected by the magnetic flux sensor.Type: ApplicationFiled: September 12, 2016Publication date: March 23, 2017Inventors: Damian W. ASHMEAD, James V. HOWARD, Kevin K. KIM, Andrew Martin BRAASCH
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Patent number: 7962467Abstract: The search results of a first iteration of a biometric search are used to form a probe for subsequent iterations searches in a biometric database. his enables the search methodology to “drill down” into the database to find matching biometric templates. In addition, the results of a search using a template of first biometric type are used to limit the search applied using a template of a second biometric type to improve the effectiveness of a one to many search for matching data in a biometric database. These search methods are used in various combinations with different types of biometric templates and demographic information of an individual who is subject of the one to many search.Type: GrantFiled: October 2, 2007Date of Patent: June 14, 2011Assignee: L-1 Secure Credentialing, Inc.Inventors: James V. Howard, Francis Frazier
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Patent number: 7804982Abstract: We provide a system for issuing identification documents to a plurality of individuals, comprising a first database, a first server, and a workstation. The first database stores a plurality of digitized images, each digitized image comprising a biometric image of an individual seeking an identification document.Type: GrantFiled: November 26, 2003Date of Patent: September 28, 2010Assignee: L-1 Secure Credentialing, Inc.Inventors: James V. Howard, Francis Frazier, Parviz Siamak
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Publication number: 20090174526Abstract: The search results of a first iteration of a biometric search are used to form a probe for subsequent iterations searches in a biometric database. his enables the search methodology to “drill down” into the database to find matching biometric templates. In addition, the results of a search using a template of first biometric type are used to limit the search applied using a template of a second biometric type to improve the effectiveness of a one to many search for matching data in a biometric database. These search methods are used in various combinations with different types of biometric templates and demographic information of an individual who is subject of the one to many search.Type: ApplicationFiled: October 2, 2007Publication date: July 9, 2009Inventors: James V. Howard, Francis Franzier
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Patent number: 7554091Abstract: An X-ray detector using a semiconductor detector, most preferably a Silicon Drift Detector, utilizes a field effect transistor or other voltage-controlled resistance to generate an output voltage proportional to its input charge (which is generated by the X-ray photons incident on the semiconductor detector). To keep the charge (and thus the output voltage) to an acceptable range—one wherein the relationship between output voltage and input charge is substantially proportional—a feedback circuit is provided between the output and input terminals, wherein the charge on the input terminal is depleted when the output voltage begins leaving the desired range. Preferably, this is done by a comparator which monitors the output voltage, and provides a reset signal to the input terminal when it begins moving out of range. Alternatively or additionally, the reset signal may be a pulse supplied to the input terminal from a pulse generator activated by the comparator.Type: GrantFiled: January 31, 2008Date of Patent: June 30, 2009Assignee: Thermo Electron Scientific Instruments LLCInventors: William E. Drummond, David R. Fahrbach, James V. Howard, James R. Hyatt, Kevin K. Kim, Mark E. Misenheimer, Dean A. Stocker
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Publication number: 20080121801Abstract: In an analytical instrument having a radiation detector, such as an electron microscope with an X-ray detector, a thermoelectric element (such as one or more Peltier junctions) is driven by a cooling power supply to cool the detector and thereby decrease measurement noise. Oil condensates and ice can then form on the detector owing to residual water vapor and vacuum pump oil in the analysis chamber, and these contaminants can interfere with measurement accuracy. To assist in reducing this problem, the thermoelectric element can be powered in the reverse of its cooling mode, thereby heating the detector and evaporating the contaminants. After the detector is cleared of contaminants, it may again be cooled and measurements may resume. Preferably, the thermoelectric element is heated by a power supply separate from the one that provides the cooling power, though it can also be possible to utilize a single power supply to provide both heating and cooling modes.Type: ApplicationFiled: May 12, 2006Publication date: May 29, 2008Inventors: James V. Howard, Tom Jacobs, Mark E. Misenheimer, David B. Rohde, Bruce R. Weber
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Patent number: 7378664Abstract: In an analytical instrument having a radiation detector, such as an electron microscope with an X-ray detector, a thermoelectric element (such as one or more Peltier junctions) is driven by a cooling power supply to cool the detector and thereby decrease measurement noise. Oil condensates and ice can then form on the detector owing to residual water vapor and vacuum pump oil in the analysis chamber, and these contaminants can interfere with measurement accuracy. To assist in reducing this problem, the thermoelectric element can be powered in the reverse of its cooling mode, thereby heating the detector and evaporating the contaminants. After the detector is cleared of contaminants, it may again be cooled and measurements may resume. Preferably, the thermoelectric element is heated by a power supply separate from the one that provides the cooling power, though it can also be possible to utilize a single power supply to provide both heating and cooling modes.Type: GrantFiled: May 12, 2006Date of Patent: May 27, 2008Assignee: Thermo Electron Scientific Instruments LLCInventors: James V. Howard, Tom Jacobs, Mark E. Misenheimer, David B. Rohde, Bruce R. Weber
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Patent number: 7339175Abstract: An X-ray detector using a semiconductor detector, most preferably a Silicon Drift Detector, utilizes a field effect transistor or other voltage-controlled resistance to generate an output voltage proportional to its input charge (which is generated by the X-ray photons incident on the semiconductor detector). To keep the charge (and thus the output voltage) to an acceptable range—one wherein the relationship between output voltage and input charge is substantially proportional—a feedback circuit is provided between the output and input terminals, wherein the charge on the input terminal is depleted when the output voltage begins leaving the desired range. Preferably, this is done by a comparator which monitors the output voltage, and provides a reset signal to the input terminal when it begins moving out of range. Alternatively or additionally, the reset signal may be a pulse supplied to the input terminal from a pulse generator activated by the comparator.Type: GrantFiled: July 28, 2006Date of Patent: March 4, 2008Assignee: Thermo Electron Scientific Instruments LLCInventors: William E. Drummond, David R. Fahrbach, James V. Howard, Mark E. Misenheimer, Dean A. Stocker
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Patent number: 7277891Abstract: The invention provides a computer-implemented method for determining whether a database contains any images that substantially match at least one image provided of an individual. A probe data set is received, the comprising first and second biometric templates associated with the individual, the first biometric template associated with a different type of biometric than the second type of biometric template. A database of biometric templates is searched using the first biometric template to retrieve a first results set. A first predetermined portion of the first results set is selected. The first predetermined portion of the first results set is searched using the second biometric template to retrieve a second results set. A second predetermined portion of the second results set is selected. The second predetermined portion of the second results is provided for comparison with the image provided of the individual.Type: GrantFiled: October 14, 2003Date of Patent: October 2, 2007Assignee: Digimarc CorporationInventors: James V. Howard, Francis Frazier
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Publication number: 20040213437Abstract: We provide a system for issuing identification documents to a plurality of individuals, comprising a first database, a first server, and a workstation. The first database stores a plurality of digitized images, each digitized image comprising a biometric image of an individual seeking an identification document.Type: ApplicationFiled: November 26, 2003Publication date: October 28, 2004Inventors: James V. Howard, Francis Frazier, Parviz Siamak
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Publication number: 20040133582Abstract: The invention provides a computer-implemented method for determining whether a database contains any images that substantially match at least one image provided of an individual. A probe data set is received, the comprising first and second biometric templates associated with the individual, the first biometric template associated with a different type of biometric than the second type of biometric template. A database of biometric templates is searched using the first biometric template to retrieve a first results set. A first predetermined portion of the first results set is selected. The first predetermined portion of the first results set is searched using the second biometric template to retrieve a second results set. A second predetermined portion of the second results set is selected. The second predetermined portion of the second results is provided for comparison with the image provided of the individual.Type: ApplicationFiled: October 14, 2003Publication date: July 8, 2004Inventors: James V. Howard, Francis Frazier
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Patent number: 5926522Abstract: An x-ray collimator for wavelength dispersive spectroscopy and the like includes a grazing incidence mirror optic having a polycapillary x-ray optic nested therein. The polycapillary x-ray optic is mounted in a hollow bore of the grazing incidence mirror optic so as not to interfere with operation of the grazing incidence mirror. The polycapillary x-ray optic extends the range of the grazing incidence mirror optic to higher energy ranges. The x-ray collimator of the present invention may be employed in a wavelength dispersive x-ray spectrometer including a diffracting element positioned to receive x-rays collimated by the x-ray collimator, and an x-ray detector positioned to receive the x-rays defracted by the diffracting element. A wavelength dispersive x-ray spectrometer in accordance with the present invention may be used in combination with an energy beam microscope, such as an electron microscope, to analyze x-rays emanating from a sample specimen.Type: GrantFiled: January 25, 1999Date of Patent: July 20, 1999Assignee: Noran Instruments, Inc.Inventors: Jon J. McCarthy, James V. Howard
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Patent number: 5214841Abstract: The geometric features of a supported component in a machine for mounting surface mount electronic components are either frontlighted or backlighted for inspection purposes. To backlight the features a fluorescent surface above the component is excited with UV light. Since UV light reflected from the component is invisible to the camera system, the features will appear black with a bright background. To frontlight the features, a light source is used which generates light outside the UV range and a) having a wavelength corresponding to the wavelength of the UV fluorescing surface so that no fluorescent is created or b) having a wavelength substantially different from the UV fluorescing surface that is absorbed by the surface without causing fluorescing to take place. This light when reflected from the features is seen by the camera and the features will appear bright in a dark background.Type: GrantFiled: September 23, 1992Date of Patent: June 1, 1993Assignee: Emhart Inc.Inventors: James V. Howard, William H. Mirley, Jr., Steven M. Whitman, Rodney P. Jackson, William J. Loconzolo