Patents by Inventor Andrew Inglis
Andrew Inglis 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: 20180299568Abstract: A fissile neutron detection system includes an ionizing thermal neutron detector arrangement including an inner peripheral shape that at least substantially surrounds a moderator region for detecting thermal neutrons that exit the moderator region but is at least generally transparent to the incident fissile neutrons. A moderator is disposed within the moderator region having lateral extents such that any given dimension that bisects the lateral extents includes a length that is greater than any thickness of the moderator arrangement transverse to the lateral extents. The moderator can include major widthwise and major lengthwise lateral extents such that any given dimension across the lengthwise and widthwise lateral extents includes a length that is greater than any thickness of the moderator arrangement transverse to the lateral extents.Type: ApplicationFiled: April 14, 2017Publication date: October 18, 2018Inventors: Andrew INGLIS, Alison FORSYTH, Zach HARTWIG, Philip TABER, Timothy TEAL, Hidefumi TOMITA
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Patent number: 9557423Abstract: A neutron detector includes a pressure vessel, an electrically conductive field cage assembly within the pressure vessel and an imaging subsystem. A pressurized gas mixture of CF4, 3He and 4He at respective partial pressures is used. The field cage establishes a relatively large drift region of low field strength, in which ionization electrons generated by neutron-He interactions are directed toward a substantially smaller amplification region of substantially higher field strength in which the ionization electrons undergo avalanche multiplication resulting in scintillation of the CF4 along scintillation tracks. The imaging system generates two-dimensional images of the scintillation patterns and employs track-finding to identify tracks and deduce the rate and direction of incident neutrons. One or more photo-multiplier tubes record the time-profile of the scintillation tracks permitting the determination of the third coordinate.Type: GrantFiled: September 29, 2010Date of Patent: January 31, 2017Assignees: Trustees of Boston University, Massachusetts Institute of Technology, Brandeis UniversityInventors: Steven Ahlen, Peter Fisher, Denis Dujmic, Hermann F. Wellenstein, Andrew Inglis
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Publication number: 20170023684Abstract: A fissile neutron detection system includes a neutron moderator and a neutron detector disposed proximate such that a majority of the surface area of the neutron moderator is disposed proximate the neutron detector. Fissile neutrons impinge upon and enter the neutron moderator where the energy level of the fissile neutron is reduced to that of a thermal neutron. The thermal neutron may exit the moderator in any direction. Maximizing the surface area of the neutron moderator that is proximate the neutron detector beneficially improves the reliability and accuracy of the fissile neutron detection system by increasing the percentage of thermal neutrons that exit the neutron moderator and enter the neutron detector.Type: ApplicationFiled: October 16, 2015Publication date: January 26, 2017Inventors: Andrew INGLIS, Zach HARTWIG, Steve AHLEN, Philip C. TABER, Timothy TEAL
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Publication number: 20170003405Abstract: A neutron detector includes a pressure vessel, an electrically conductive field cage assembly within the pressure vessel and an imaging subsystem. A pressurized gas mixture of CF4, 3He and 4He at respective partial pressures is used. The field cage establishes a relatively large drift region of low field strength, in which ionization electrons generated by neutron-He interactions are directed toward a substantially smaller amplification region of substantially higher field strength in which the ionization electrons undergo avalanche multiplication resulting in scintillation of the CF4 along scintillation tracks. The imaging system generates two-dimensional images of the scintillation patterns and employs track-finding to identify tracks and deduce the rate and direction of incident neutrons. One or more photo-multiplier tubes record the time-profile of the scintillation tracks permitting the determination of the third coordinate.Type: ApplicationFiled: September 29, 2010Publication date: January 5, 2017Applicants: TRUSTEES OF BOSTON UNIVERSITY, BRANDEIS UNIVERSITY, MASSACHUSETTS INSTITUTE OF TECHNOLOGYInventors: Steven Ahlen, Peter Fisher, Denis Dujmic, Hermann F. Wellenstein, Andrew Inglis
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Patent number: 9018594Abstract: A thermal neutron detector includes a planar detector housing having two glass panels spaced apart by a gas-tight seal defining a detection chamber. Lithium foils adhered to inner surfaces of the glass panel emit alpha particles and tritons in response to incident thermal neutrons, and an inert detection gas is ionized to generate drift electrons. A planar array of detection wires is spaced from the lithium foils and extends outside the detection chamber. Electronic bias applies a field voltage between the wires and the lithium foils to establish a drift electric field to attract the drift electrons to the wires and provide a large electric field to cause electron multiplication. Detection circuitry detects electric signals in the wires generated by the drift of positive ions away from the wires and interprets the electrical signals as incidence of thermal neutrons on the detector.Type: GrantFiled: March 15, 2013Date of Patent: April 28, 2015Assignee: Trustees of Boston UniversityInventors: Steven P. Ahlen, Andrew Inglis, Hidefumi Tomita
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Publication number: 20120117463Abstract: Methods and apparatus, including computer program products, for large scale document generation.Type: ApplicationFiled: November 8, 2011Publication date: May 10, 2012Inventor: Andrew Inglis
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Publication number: 20040265459Abstract: A process for reducing viable microbial content of a substantially solid material which is susceptible to microbial spoilage or contamination, the process comprising: (a) entraining a biocidal substance in a carrier gas to form a biocidal gas mixture by adding a biocidal substance to a heated carrier gas; and (b) contacting exposed surfaces of the solid material with the biocidal gas mixture heated to an elevated temperature of at least about 10° C. above the dew point of the biocidal gas mixture for a sufficient period of time so that at least some microbes on the exposed surfaces are exposed to the biocidal substance in the biocidal gas mixture.Type: ApplicationFiled: August 25, 2004Publication date: December 30, 2004Inventors: David James Lark, Andrew Inglis, Crispin Marsh
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Patent number: 6584159Abstract: A mixed-mode crosstalk canceller is disclosed that performs crosstalk cancellation in the continuous time domain. The disclosed mixed-mode crosstalk canceller processes the pulse amplitude modulated (PAM) digital signal to be transmitted as well as the received signal to compensate for the crosstalk between the transmit and receive signals. The output of the crosstalk canceller is subtracted from the received signal in the continuous time domain. Thus, the transmit symbol clock and the receive symbol clock can be asynchronous. The tap weights for the crosstalk cancellation are illustratively obtained using a modified version of the least mean square (LMS) algorithm for discrete time signals. The modified least mean square (LMS) algorithm is applied for continuous time signals that are derived from different clocks.Type: GrantFiled: November 9, 1998Date of Patent: June 24, 2003Assignee: Agere Systems Inc.Inventors: Kameran Azadet, David Andrew Inglis
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Patent number: 6141050Abstract: An image sensor circuit which employs a photodiode in conjunction with a charge transfer mechanism. By employing the photodiode, at least a portion of the light sensed does not pass through a layer of polysilicon, and so is not prevented from reaching the sensing area by the polysilicon. The image sensor circuit of the invention is made up of device structures readily available in standard CMOS process technologies Advantageously, image sensors embodying the invention show substantially improved quantum efficiency for short wavelength light over the prior art sensors. In addition, image sensors embodying the invention display improved dark current uniformity, thus improving yield.Type: GrantFiled: June 20, 1997Date of Patent: October 31, 2000Assignee: Lucent Technologies Inc.Inventors: Bryan David Ackland, David Andrew Inglis, Marc J. Loinaz
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Patent number: 5835141Abstract: A single-polysilicon active pixel, methods for operating and making same, and an imaging device employing same are disclosed. The single-polysilicon active pixel comprises a photo site located on a substrate for generating and storing charge carriers, the charge carriers being generated from photonic energy incident upon the photo site and semiconductor substrate, a photo gate, a transfer transistor and output and reset electronics. The gate of the transfer transistor and the photo gate are defined in a single layer of polysilicon disposed on the semiconductor substrate. The source of transfer transistor is a doped region of substrate, referred to as a coupling diffusion, which provides the electrical coupling between the photo gate and the transfer transistor. The coupling diffusion allows for the transfer of a signal stored in a photo site under the photo gate to the output electronics for processing. A plurality of such single-polysilicon active pixels can be arranged to form an imaging system.Type: GrantFiled: July 3, 1996Date of Patent: November 10, 1998Assignee: Lucent Technologies Inc.Inventors: Bryan David Ackland, Alexander George Dickinson, El-Sayed Ibrarhim Eid, David Andrew Inglis
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Patent number: 5739562Abstract: An active pixel image sensor includes an array of pixels arranged in a first group and a second group. The first group may constitute a row and the second group may constitute a column, for example. A first common conductor is coupled to the pixels in the first group for conducting control signals. A second common conductor is coupled to the pixels in the second group for selectively transmitting signals to processing electronics. Each of the pixels includes a plurality of sensing elements that are each configured for capturing a portion of energy from an object to be imaged. At least one of the sensing elements is of a type distinct from another of the sensing elements. For example, one of the sensing elements may be a photogate and another may be a photodiode. An amplifying arrangement is provided for receiving signals from selected ones of the plurality of sensing elements and for selectively providing output signals to the second common conductor.Type: GrantFiled: August 1, 1995Date of Patent: April 14, 1998Assignee: Lucent Technologies Inc.Inventors: Bryan David Ackland, Alexander George Dickinson, David Andrew Inglis
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Patent number: 5189670Abstract: Data packets of mutually equal durations are transmitted from a plurality of substations to a main station via one or more transmission channels. The main station transmits on each transmission channel a synchronizing signal which indicates the beginning of a frame. A programmable memory stores maximum link establishment and maximum link disetablishment times which are characteristic of the transmission channel from the substations to the main station. The substations each comprise a programmable memory for storing the maximum establishment times and disestablishment times. On reception of the synchronizing signal on a transmission channel the substation subdivides the frame into a number of consecutive time slots of mutually equal durations at least equal to the sum of the duration of a data packet, and the stored maximum establishment and disestablishment times of that transmission channel.Type: GrantFiled: January 28, 1991Date of Patent: February 23, 1993Assignee: U.S. Philips CorporationInventor: Andrew Inglis