Patents by Inventor John Caulfield
John Caulfield 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: 11994365Abstract: Techniques for tracing back a projectile to the projectile origin are described. A method includes detecting projectile track(s) in image(s). Each projectile track crosses multiple pixels in each image. The projectile track(s) correspond to projectile(s). The projectile track(s) in the image(s) are translated to traceback path(s). The traceback path includes a known location and a projectile origin (e.g. the location at which the projectile originated, also termed the shooter's location).Type: GrantFiled: August 3, 2022Date of Patent: May 28, 2024Assignee: Cyan SystemsInventors: Jon Paul Curzan, John Caulfield
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Publication number: 20240031521Abstract: A method that can detect targets is described. The method includes setting an integration time for each of a plurality of readout circuits based on a speed of the target. The readout circuits are configured to read pixels in an image detector. The pixels have a pitch of less than ten micrometers. The integration time is not more than five hundred microseconds and corresponds to a subframe of a fast frame image. The method also includes performing integrations of each readout circuit based on the integration time. Thus, a plurality of subframes are provided. A number of the subframes are averaged to provide the fast frame image.Type: ApplicationFiled: March 7, 2023Publication date: January 25, 2024Inventors: John Caulfield, Jon Paul Curzan
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Patent number: 11810342Abstract: A mechanism for radiation detection is disclosed. An integrated circuit usable in detecting radiation includes a plurality of readout circuits is described. A readout circuit of the plurality of readout circuits includes an integration capacitor and an averaging capacitor. The integration capacitor is coupled with a pixel of a photodetector pixel array. The pixel has a pixel area. An available area less than the pixel area is usable for layout of the integration capacitor. The integration capacitor has a capacitor area less than the available area. The averaging capacitor has an averaging capacitance greater than the integration capacitance of the integration capacitor. In some aspects, the integrated circuit further includes at least one cascaded averaging circuit coupled with the averaging capacitor.Type: GrantFiled: July 28, 2022Date of Patent: November 7, 2023Assignee: Cyan SystemsInventors: John Caulfield, Jon Paul Curzan, Kenton Veeder
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Publication number: 20230324145Abstract: Techniques for tracing back a projectile to the projectile origin are described. A method includes detecting projectile track(s) in image(s). Each projectile track crosses multiple pixels in each image. The projectile track(s) correspond to projectile(s). The projectile track(s) in the image(s) are translated to traceback path(s). The traceback path includes a known location and a projectile origin (e.g. the location at which the projectile originated, also termed the shooter's location).Type: ApplicationFiled: August 3, 2022Publication date: October 12, 2023Inventors: Jon Paul Curzan, John Caulfield
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Patent number: 11637972Abstract: A method that can detect targets is described. The method includes setting an integration time for each of a plurality of readout circuits based on a speed of the target. The readout circuits are configured to read pixels in an image detector. The pixels have a pitch of less than ten micrometers. The integration time is not more than five hundred microseconds and corresponds to a subframe of a fast frame image. The method also includes performing integrations of each readout circuit based on the integration time. Thus, a plurality of subframes are provided. A number of the subframes are averaged to provide the fast frame image.Type: GrantFiled: June 25, 2020Date of Patent: April 25, 2023Assignee: Cyan SystemsInventors: John Caulfield, Jon Paul Curzan
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Publication number: 20230081593Abstract: A method that can detect targets is described. The method includes setting an integration time for each of a plurality of readout circuits based on a speed of the target. The readout circuits are configured to read pixels in an image detector. The pixels have a pitch of less than ten micrometers. The integration time is not more than five hundred microseconds and corresponds to a subframe of a fast frame image. The method also includes performing integrations of each readout circuit based on the integration time. Thus, a plurality of subframes are provided. A number of the subframes are averaged to provide the fast frame image.Type: ApplicationFiled: June 25, 2020Publication date: March 16, 2023Inventors: John Caulfield, Jon Paul Curzan
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Publication number: 20220375214Abstract: A mechanism for radiation detection is disclosed. An integrated circuit usable in detecting radiation includes a plurality of readout circuits is described. A readout circuit of the plurality of readout circuits includes an integration capacitor and an averaging capacitor. The integration capacitor is coupled with a pixel of a photodetector pixel array. The pixel has a pixel area. An available area less than the pixel area is usable for layout of the integration capacitor. The integration capacitor has a capacitor area less than the available area. The averaging capacitor has an averaging capacitance greater than the integration capacitance of the integration capacitor. In some aspects, the integrated circuit further includes at least one cascaded averaging circuit coupled with the averaging capacitor.Type: ApplicationFiled: July 28, 2022Publication date: November 24, 2022Inventors: John Caulfield, Jon Paul Curzan, Kenton Veeder
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Patent number: 11448483Abstract: Techniques for tracing back a projectile to the projectile origin are described. A method includes detecting projectile track(s) in image(s). Each projectile track crosses multiple pixels in each image. The projectile track(s) correspond to projectile(s). The projectile track(s) in the image(s) are translated to traceback path(s). The traceback path includes a known location and a projectile origin (e.g. the location at which the projectile originated, also termed the shooter's location).Type: GrantFiled: April 23, 2020Date of Patent: September 20, 2022Assignee: Cyan SystemsInventors: Jon Paul Curzan, John Caulfield
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Patent number: 11436823Abstract: A mechanism for radiation detection is disclosed. An integrated circuit usable in detecting radiation includes a plurality of readout circuits is described. A readout circuit of the plurality of readout circuits includes an integration capacitor and an averaging capacitor. The integration capacitor is coupled with a pixel of a photodetector pixel array. The pixel has a pixel area. An available area less than the pixel area is usable for layout of the integration capacitor. The integration capacitor has a capacitor area less than the available area. The averaging capacitor has an averaging capacitance greater than the integration capacitance of the integration capacitor. In some aspects, the integrated circuit further includes at least one cascaded averaging circuit coupled with the averaging capacitor.Type: GrantFiled: January 17, 2020Date of Patent: September 6, 2022Assignee: Cyan SystemsInventors: John Caulfield, Jon Paul Curzan, Kenton Veeder
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Patent number: 8929601Abstract: Detection of a target object or a characteristic of that object, e.g. temperature or movement in an image of a scene at a focal plane of the image and with processing of signals representative of the image occurring at that focal plane with a sensor and an integrated circuit processor on an imaging circuit chip used to record the scene. Moreover, processing of the signals representative of the image and the object or characteristic of the object can all be processed in parallel. This arrangement allows for filtering of objects with the ability to distinguish the object generating signals from background clutter. The incorporation of the entire circuit in this integrated circuit chip increases the compactness and efficiency. Moreover, all signal processing will occur at the focal plane eliminates the need for external processing electronics thereby increasing compactness and efficiency while reducing spatial noise.Type: GrantFiled: January 13, 2013Date of Patent: January 6, 2015Inventor: John Caulfield
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Publication number: 20130126703Abstract: Detection of a target object or a characteristic of that object, e.g. temperature or movement in an image of a scene at a focal plane of the image and with processing of signals representative of the image occurring at that focal plane with a sensor and an integrated circuit processor on an imaging circuit chip used to record the scene. Moreover, processing of the signals representative of the image and the object or characteristic of the object can all be processed in parallel. This arrangement allows for filtering of objects with the ability to distinguish the object generating signals from background clutter. The incorporation of the entire circuit in this integrated circuit chip increases the compactness and efficiency. Moreover, all signal processing will occur at the focal plane eliminates the need for external processing electronics thereby increasing compactness and efficiency while reducing spatial noise.Type: ApplicationFiled: January 13, 2013Publication date: May 23, 2013Inventor: John Caulfield
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Publication number: 20050259302Abstract: An illumination panel for illuminating an object, comprising a substrate, a light diffractive grating and a light source. The substrate is made from an optically transparent material having first and second area surfaces disposed substantially parallel to each other and a light input surface for conducting a light beam into the substrate. The light diffractive grating is mounted to the first areal surface and has a slanted fringe structure embodied therein for diffracting the light beam falling incident thereto, along a first diffractive order of the slanted fringe structure. The light source produces a light beam for transmission through the input surface and direct passage through the substrate to the slanted fringe structure so as to produce an output light beam of areal extent that emerges from either the first or second areal surface along the first diffractive order, for use in illuminating an object.Type: ApplicationFiled: June 3, 2002Publication date: November 24, 2005Inventors: Michael Metz, Nicholas Phillips, Zane Coleman, John Caulfield, Carl Flatow
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Patent number: 6847731Abstract: Stand-alone or assistive pattern recognition system and process enabling error free classification of all objects in a training set and application to unclassified objects. Parameters and/or features of the data objects in a training set are selected and measured, from which discriminants are computed. The measured data is plotted in discriminant space and decision boundaries or thresholds determined, preferably such that at least one object from one class is isolated from the remaining objects, removed from the training set, and the process repeated until an acceptable number of unclassified objects remain. The system can be applied sequentially to classify all the members of the training set belonging to one class and then applied to objects in other classes. Fuzzy quantifiable determinations of an object's likelihood of class membership can be made. Objects' positions and classifications are obtainable in an optical system using Fourier techniques without limitation to linearly discriminable problems.Type: GrantFiled: August 7, 2000Date of Patent: January 25, 2005Assignee: Northeast Photo Sciences, Inc.Inventor: H. John Caulfield
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Patent number: 6728567Abstract: The present invention relates to a method and apparatus for the construction and/or use of multidimensional fields that can be used for high-resolution detection and characterization of features within objects. The multidimensional field is constructed from data that is collected by an array of radiation detectors that substantially surround the object under study. The detected radiation is produced by an array of radiation sources and is subsequently scattered, reflected, transmitted, or diffracted by the object under study and any features within the object under study. In particular embodiments of the invention, the radiation that is used is ultrasonic radiation and the object under study is human or animal tissue or an organ. In this case, the invention permits the detection and identification of cancer by an intelligently trained evaluation system.Type: GrantFiled: November 27, 2001Date of Patent: April 27, 2004Assignee: Barbara Ann Karmanos Cancer InstituteInventors: John D. G. Rather, H. John Caulfield, Richard D. Doolittle, Peter J. Littrup, Glenn W. Zeiders
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Patent number: 6672165Abstract: An acoustoelectronic method and apparatus for generating real-time three-dimensional images of an object and characterizing such object are provided. The object is insonified with an incident acoustic signal derived from an electrical signal. Acoustic signals scattered from the object are collected by an acoustic receiver, which generates analog electrical signals that are subsequently converted to digital electronic signals. The digital electronic signals are used in both direct-imaging and holographic methods to produce a three-dimensional representation of the object from which images and characterizations can be generated.Type: GrantFiled: February 25, 2002Date of Patent: January 6, 2004Assignee: Barbara Ann Karmanos Cancer CenterInventors: John D. G. Rather, H. John Caulfield, Richard D. Doolittle, Glenn W. Zeiders, Gregory W. Auner
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Patent number: 6540678Abstract: An acoustoelectronic method and apparatus for generating real-time three-dimensional images of an object and characterizing such object are provided. The object is insonified with an incident acoustic signal derived from an electrical signal. Acoustic signals scattered from the object are collected by an acoustic receiver, which generates analog electrical signals that are subsequently converted to digital electronic signals. The digital electronic signals are used in both direct-imaging and holographic methods to produce a three-dimensional representation of the object from which images and characterizations can be generated.Type: GrantFiled: February 25, 2002Date of Patent: April 1, 2003Assignee: Barbara Ann Karmanos Cancer InstituteInventors: John D. G. Rather, H. John Caulfield, Richard D. Doolittle, Glenn W. Zeiders, Gregory W. Auner
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Publication number: 20030020975Abstract: An illumination panel for illuminating an object, comprising a substrate, a light diffractive grating and a light source. The substrate is made from an optically transparent material having first and second area surfaces disposed substantially parallel to each other and a light input surface for conducting a light beam into the substrate. The light diffractive grating is mounted to the first areal surface and has a slanted fringe structure embodied therein for diffracting the light beam falling incident thereto, along a first diffractive order of the slanted fringe structure. The light source produces a light beam for transmission through the input surface and direct passage through the substrate to the slanted fringe structure so as to produce an output light beam of areal extent that emerges from either the first or second areal surface along the first diffractive order, for use in illuminating an object.Type: ApplicationFiled: June 3, 2002Publication date: January 30, 2003Inventors: Michael H. Metz, Nicholas J. Phillips, Zane Coleman, John Caulfield, Carl Flatow
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Publication number: 20020143245Abstract: An acoustoelectronic method and apparatus for generating real-time three-dimensional images of an object and characterizing such object are provided. The object is insonified with an incident acoustic signal derived from an electrical signal. Acoustic signals scattered from the object are collected by an acoustic receiver, which generates analog electrical signals that are subsequently converted to digital electronic signals. The digital electronic signals are used in both direct-imaging and holographic methods to produce a three-dimensional representation of the object from which images and characterizations can be generated.Type: ApplicationFiled: February 25, 2002Publication date: October 3, 2002Applicant: Barbara Ann Karmanos Cancer InstituteInventors: John D.G. Rather, H. John Caulfield, Richard D. Doolittle, Glenn W. Zeiders, Gregory W. Auner
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Publication number: 20020138000Abstract: An acoustoelectronic method and apparatus for generating real-time three-dimensional images of an object and characterizing such object are provided. The object is insonified with an incident acoustic signal derived from an electrical signal. Acoustic signals scattered from the object are collected by an acoustic receiver, which generates analog electrical signals that are subsequently converted to digital electronic signals. The digital electronic signals are used in both direct-imaging and holographic methods to produce a three-dimensional representation of the object from which images and characterizations can be generated.Type: ApplicationFiled: February 25, 2002Publication date: September 26, 2002Applicant: Barbara Ann Karmanos Cancer InstituteInventors: John D.G. Rather, H. John Caulfield, Richard D. Doolittle, Glenn W. Zeiders, Gregory W. Auner
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Patent number: D998685Type: GrantFiled: February 16, 2021Date of Patent: September 12, 2023Assignee: Cyan SystemsInventors: John Caulfield, Jon Paul Curzan