Patents by Inventor Leo R. Gauthier, Jr.

Leo R. Gauthier, Jr. 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).

  • Publication number: 20220333982
    Abstract: Provided herein are a system and a method thereof which allows for calibrating a laser or getting characteristics of the laser by measuring the temporally and spatially resolved beam profile and power density cross-section using non-contact radiometry. An example method includes receiving a radiation beam from a light source by protrusions that protrude from a plate. The example method further includes imaging the protrusions, measuring a respective temperature of each of the protrusions based on the imaging, and profiling the radiation beam based on the measuring.
    Type: Application
    Filed: February 19, 2022
    Publication date: October 20, 2022
    Inventors: Leo R. Gauthier, JR., Kenneth W. Harclerode
  • Patent number: 11372455
    Abstract: An example method for determining a mobile device position and orientation is provided. The method may include capturing a two-dimensional image of a surface including at least four markers, and determining a unit direction vector for each of the at least four markers based on an association between a pixel location of each of the at least four markers in the two-dimensional image. The method may further include determining apex angles between each pair of the unit direction vectors, and determining marker distances from the imaging sensor to each of the at least four markers via a first iterative process based on the apex angles. Additionally, the method may include determining the mobile device position with respect to the coordinate frame via a second iterative process based on the marker distances, the apex angles, and the coordinates of each of the at least four markers.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: June 28, 2022
    Assignee: The Johns Hopkins University
    Inventor: Leo R. Gauthier, Jr.
  • Publication number: 20200264676
    Abstract: An example method for determining a mobile device position and orientation is provided. The method may include capturing a two-dimensional image of a surface including at least four markers, and determining a unit direction vector for each of the at least four markers based on an association between a pixel location of each of the at least four markers in the two-dimensional image. The method may further include determining apex angles between each pair of the unit direction vectors, and determining marker distances from the imaging sensor to each of the at least four markers via a first iterative process based on the apex angles. Additionally, the method may include determining the mobile device position with respect to the coordinate frame via a second iterative process based on the marker distances, the apex angles, and the coordinates of each of the at least four markers.
    Type: Application
    Filed: February 15, 2019
    Publication date: August 20, 2020
    Inventor: Leo R. Gauthier, JR.
  • Patent number: 10002104
    Abstract: A serial digital data acquisition receiver (SDDAR) or system of receivers may include an opto-isolator assembly, sampling logic and a USB interface. Both a CLK signal and a DATA signal may each pass through the opto-isolator assembly upon receipt of the CLK and DATA signals at the SDDAR or system. The sampling logic may be operably coupled to the opto-isolator assembly and be configured to determine a point at which to sample the DATA signal based on state changes in the CLK signal. The USB interface may be operably coupled to the sampling logic and an output terminal. The USB interface may be configured to provide telemetry data for processing, display or recording at the output terminal, and may be configured to enable the SDDAR or system to be powered from the output terminal.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: June 19, 2018
    Assignee: The Johns Hopkins University
    Inventors: Leo R. Gauthier, Jr., Harlan Ray, III
  • Patent number: 9599697
    Abstract: A system for detecting and tracking one or more of direction, orientation and position of one or more light sources includes one or more optical fiber sensors configured to receive light from the one or more light sources and to generate a plurality of cones of light according to relative positions of the one or more optical fiber sensors relative to the one or more light sources. The system includes light data processing circuitry configured to detect characteristics of the plurality of cones of light and to determine one or more of direction, orientation, or position of the one or more light sources relative to the one or more optical fibers.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: March 21, 2017
    Assignee: The Johns Hopkins University
    Inventor: Leo R. Gauthier, Jr.
  • Publication number: 20170039161
    Abstract: A serial digital data acquisition receiver (SDDAR) or system of receivers may include an opto-isolator assembly, sampling logic and a USB interface. Both a CLK signal and a DATA signal may each pass through the opto-isolator assembly upon receipt of the CLK and DATA signals at the SDDAR or system. The sampling logic may be operably coupled to the opto-isolator assembly and be configured to determine a point at which to sample the DATA signal based on state changes in the CLK signal. The USB interface may be operably coupled to the sampling logic and an output terminal. The USB interface may be configured to provide telemetry data for processing, display or recording at the output terminal, and may be configured to enable the SDDAR or system to be powered from the output terminal.
    Type: Application
    Filed: June 2, 2016
    Publication date: February 9, 2017
    Inventors: Leo R. Gauthier, JR., Harlan Ray, III
  • Publication number: 20160216356
    Abstract: A system for detecting and tracking one or more of direction, orientation and position of one or more light sources includes one or more optical fiber sensors configured to receive light from the one or more light sources and to generate a plurality of cones of light according to relative positions of the one or more optical fiber sensors relative to the one or more light sources. The system includes light data processing circuitry configured to detect characteristics of the plurality of cones of light and to determine one or more of direction, orientation, or position of the one or more light sources relative to the one or more optical fibers.
    Type: Application
    Filed: April 15, 2014
    Publication date: July 28, 2016
    Applicant: The Johns Hopkins University
    Inventor: Leo R. Gauthier, JR.
  • Patent number: 7435010
    Abstract: Disclosed is a method of forming an optical monitoring or transmitting light guide and a resulting apparatus that begins by bonding a bundle of optical fibers together using an epoxy and polishing the distal end of the bundle of optical fibers to create an optical aperture. The ratio of fiber size to binder particulate size of the epoxy used in the bonding process is sufficient to maintain the integrity of the bundle of optical fibers during the polishing of the distal end. The method positions the bundle of optical fibers into a protective sheath and a connector. The coefficient of thermal expansion of the epoxy used in the bonding process matches that of the connector. Once assembled, the invention positions the connector through the opening in the surface of a device, such that the distal end of the bundle of optical fibers is either recessed in, substantially flush with, or extends from the surface of the device through which the connector extends, depending on field-of-view requirements.
    Type: Grant
    Filed: January 3, 2007
    Date of Patent: October 14, 2008
    Assignee: The Johns Hopkins University
    Inventors: Leo R. Gauthier, Jr., James E. McDonald, Louis A. Mattes
  • Patent number: 7406219
    Abstract: The present invention is directed to a hitpoint sensor for a surface of interest, the hitpoint sensor having an optical fiber which is wound around or otherwise covering the surface, and a data processor connected to the ends of the optical fiber. When a collision with the surface occurs, light is generated which passes through the optical fiber. The ends of the fiber are connected to the data processor which uses arrival time information of the light signals arriving at the processor to determine the impact location on the surface. There are several modes in which the processor can operate to make this calculation.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: July 29, 2008
    Assignee: The Johns Hopkins University
    Inventor: Leo R. Gauthier, Jr.
  • Patent number: 7385215
    Abstract: Sensing elements that quickly and accurately determine if a liquid or gas is present around the sensing elements are disclosed. These sensing elements find particular application in identifying the location of the cavity wall in which a supercavitating vehicle is operating, relative to the vehicle. In certain embodiments signal emitting elements carried on the vehicle emit signals towards the presumed position of the cavity wall, and sensing elements carried on the vehicle receive the emitted signals after they are reflected off of the cavity wall. The sensing elements identify the location where the reflected signal is received, and based on this identified location, the location of the cavity wall is determined. In alternative embodiments, sensing elements are positioned along fins extending outward with respect to the hull of the vehicle, and the sensors sense the presence of liquid or gas.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: June 10, 2008
    Assignee: The Johns Hopkins University
    Inventors: Kim R. Fowler, Leo R. Gauthier, Jr.
  • Patent number: 7197197
    Abstract: A method of determining the path of a projectile comprises detecting multiple time of arrivals of the projectile in multiple intersecting planes and determining the path and speed of the projectile based on the multiple times of arrivals.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: March 27, 2007
    Assignee: The Johns Hopkins University
    Inventors: Leo R. Gauthier, Jr., David G. Drewry, Jr., Leroy Brunner
  • Patent number: 7156559
    Abstract: Disclosed is a method of forming an optical monitoring or transmitting light guide and a resulting apparatus that begins by bonding a bundle of optical fibers together using an epoxy and polishing the distal end of the bundle of optical fibers to create an optical aperture. The ratio of fiber size to binder particulate size of the epoxy used in the bonding process is sufficient to maintain the integrity of the bundle of optical fibers during the polishing of the distal end. The method positions the bundle of optical fibers into a protective sheath and a connector. The coefficient of thermal expansion of the epoxy used in the bonding process matches that of the connector. Once assembled, the invention positions the connector through the opening in the surface of a device, such that the distal end of the bundle of optical fibers is either recessed in, substantially flush with, or extends from the surface of the device through which the connector extends, depending on field-of-view requirements.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: January 2, 2007
    Assignee: The Johns Hopkins University
    Inventors: Leo R. Gauthier, Jr., Louis A. Mattes, James E. McDonald
  • Patent number: 6931166
    Abstract: An optical sensor and method for detecting a projectile velocity vector includes optically detecting the arrival of a projectile. The sensor includes a sandwich of a transparent layer within two reflective layers, which in turn are within two opaque layers. An optical sensor structure includes a set of sensors positioned in respective planes, wherein at least two non-parallel optical sensors are used for each trajectory dimension of interest that differs from the primary direction of motion of the projectile and one additional optical sensor may be used for independent measurement of velocity attenuation. An optical sensor structure includes a set of sensors positioned in respective planes, wherein at least two of the optical sensors are oriented in respective planes that are parallel and potentially offset from each other. A tiling of the optical sensors or optical structures is also possible.
    Type: Grant
    Filed: October 25, 2002
    Date of Patent: August 16, 2005
    Assignee: The Johns Hopkins University
    Inventors: Leo R. Gauthier, Jr., David G. Drewry, Jr., Leroy Brunner
  • Patent number: 6841766
    Abstract: A plurality of energy couplers (12) receives signals from an energy pulse, each of the energy couplers (12) having a defined field of view, the field of views of at least some of the energy couplers being overlapping. A transducer (14) converts the signals received from the energy pulse to voltage or current output signals that are then amplified. A threshold circuit (18) triggers when the amplitude of a signal caused by the energy pulse exceeds a predetermined level, and signal processing instrumentation (24) then calculates the source location and/or the intensity and/or the initiation time of the energy pulse based on the timing of the output signals associated with individual energy couplers (12).
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: January 11, 2005
    Assignee: The Johns Hopkins University
    Inventors: Leo R. Gauthier, Jr., John M. Klimek, Angela L. Wesner-Barrios
  • Publication number: 20040213502
    Abstract: An optical sensor and method for detecting a projectile velocity vector includes optically detecting the arrival of a projectile. The sensor includes a sandwich of a transparent layer within two reflective layers, which in turn are within two opaque layers. An optical sensor structure includes a set of sensors positioned in respective planes, wherein at least two non-parallel optical sensors are used for each trajectory dimension of interest that differs from the primary direction of motion of the projectile and one additional optical sensor may be used for independent measurement of velocity attenuation. An optical sensor structure includes a set of sensors positioned in respective planes, wherein at least two of the optical sensors are oriented in respective planes that are parallel and potentially offset from each other. A tiling of the optical sensors or optical structures is also possible.
    Type: Application
    Filed: January 27, 2004
    Publication date: October 28, 2004
    Inventors: Leo R. Gauthier Jr, David G. Drewry Jr, Leroy Brunner
  • Patent number: 6637255
    Abstract: A damping gyrometer comprised of at least two and preferably four rotating paddles attached to a common central elevated low-friction pivot point via rising radial arms. A stand with a concave glass element provides a low-friction support as a pivot point seat for the pivot point. All elements of the apparatus are non-conductive. Once set into motion, the only force acting on the gyrometer are the pivot point friction and the damping effects of the medium in which it spins. A laser beam and photodetector (or alternatively a laser displacement sensor), along with customized software algorithms are used to measure the rotational rate and, hence, the deceleration rate of the apparatus which can then be used to determine properties of the medium in which it spins, including changes in density, pressure, and temperature. The measurement can also be directly related to the electron density in the case of weakly ionized gases.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: October 28, 2003
    Assignee: The Johns Hopkins University
    Inventors: Leo R. Gauthier, Jr., Angela L. Wesner-Barrios, David M. VanWie
  • Publication number: 20030066337
    Abstract: A damping gyrometer comprised of at least two and preferably four rotating paddles of teflon™ or fiberglas attached to a common central elevated low-friction pivot point via rising radial arms. The pivot point is the single point of mechanical support for the rotating structure. A stand with a concave glass element provides a low-friction support as a pivot point seat for the pivot point. All elements of the apparatus are non-conductive. Once set into motion by a short air blast, the only force acting on the gyrometer are the pivot point friction and the damping effects of the medium in which it spins. A laser beam and photodetector (or alternatively a laser displacement sensor), along with customized software algorithms are used to measure the rotational rate and, hence, importantly, the deceleration rate of the apparatus. The declaration of the damping gyrometer can then be used to determine properties of the medium in which it spins, including changes in density, pressure, and temperature.
    Type: Application
    Filed: June 28, 2002
    Publication date: April 10, 2003
    Inventors: Leo R. Gauthier Jr, Angela L. Wesner-Barrios, David M. Van Wie
  • Patent number: 6292105
    Abstract: An ionization chamber that detects changes in temperature of electrical insulation with a corresponding change in voltage. This voltage change can be relayed through an operational amplifier and a comparator to a device receiving the signal, thus triggering the necessary alarm and preventing fires caused by electrical arcing.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: September 18, 2001
    Assignee: The Johns Hopkins University
    Inventors: Bruce A. Land, III, John M. Klimek, Leo R. Gauthier, Jr., Christopher L. Eddins