Patents Examined by Tri T Ton
  • Device and method for detecting fluid transparency
    Patent number: 11175226
    Abstract: The present invention discloses a device and method for detecting fluid transparency. The detection device comprises: a detection pipeline, which allows a beam to be incident on and emergent from a fluid therein; a laser tube, used for outputting the incident beam; and a photoelectric detector, used for detecting the emergent beam from the fluid, wherein the photoelectric detector comprises a scatter detector and a transmission detector; and the detection method comprises obtaining a scattered background noise value and a transmission background noise value of a device, obtaining the scattered light intensity Iscatter obtained by the scatter detector and the transmission light intensity Itransmission obtained by the transmission detector, and calculating the particle-absorbed light intensity Iabsorb; obtaining the total light intensity Itotal of a laser; and obtaining a fluid transparency T.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: November 16, 2021
    Assignee: FATRI UNITED TESTING & CONTROL (QUANZHOU) TECHNOLOGIES CO., LTD.
    Inventors: Yongzhong Nie, Zhongping Zhang
  • Composition measurement system
    Patent number: 11175225
    Abstract: A method for measuring one or more quantities characterizing a composition of a medium includes causing a first non-uniform spatially varying optical signal to impinge on a portion of the medium, processing a second optical signal emitted from the medium in response to the first optical signal including determining characteristics of a spatial variation of the second optical signal, and determining the one or more quantities characterizing the composition of the medium based on the characteristics of the spatial variation of the second optical signal.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: November 16, 2021
    Assignee: Massachusetts Institute of Technology
    Inventors: Sanjay E. Sarma, Pranay Jain
  • High resolution multiplexing system
    Patent number: 11169088
    Abstract: A method is provided for measuring time varying particle fluxes with improved temporal resolution and signal to noise ratio. The particles can be photons, neutrons, electrons or electrically charged particles. The method includes a set of electronic and/or optical components and a set of algorithms that implement N-fold temporal multiplexing of the input flux. The system can be used to measure other types of flux by using a transducer to convert the flux into a compatible form. The system can include a transducer such as a scintillator that operates to convert particle flux incident into a photon flux proportional to the amplitude of particle flux. The invention can be used with multiplexing methods known to those skilled in the art, for example Hadamard and Fourier methods.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: November 9, 2021
    Assignee: 11093568 Canada Ltd.
    Inventors: David Allan Prystupa, John Stephen Pacak, Peter Condie Nell
  • Optical metrology device using numerical aperture reduction
    Patent number: 11162897
    Abstract: A metrology device that can determine at least one characteristics of a sample is disclosed. The metrology device includes an optical system that uses spatially coherent light with a first and a second objective lens as well as a detector that detects light reflected from the sample. The objective lenses use numerical apertures sufficient to produce a small probe size, e.g., less than 200 ?m, while a spatial filter is used to reduce the effective numerical aperture of the optical system as seen by the detector to avoid loss of information and demanding computation requirements caused by the large angular spread due to large numerical apertures. The spatial filter permits light to pass in a desired range of angles, while blocking the remaining light and is positioned to prevent use of the full spatial extent of at least one of the first objective lens and the second objective lens.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: November 2, 2021
    Assignee: Onto Innovation Inc.
    Inventors: George Andrew Antonelli, Troy Daniel Ribaudo, Michael J. Hammond
  • Mapping light location through a data modulated light output and real-time location information
    Patent number: 11163031
    Abstract: Lights sources may be installed in a facility without regard to their unique identifiers, which are necessary for a lighting control system to exercise control over the light sources. After installation, a mobile device can identify the identifier of a particular light source through use of a mobile device with a photodetector that detects visible light signals emitted by a light source. The user of the mobile device may locate themselves within range of a light source. The light source transmits a visible light signal to convey information includes an identifier of the light source, such as a MAC address. The mobile device can then determine a correspondence between the light source's identifier and its location in the facility. Accordingly, a mapping of a plurality of light sources can be created while minimizing the possibility for human error during commissioning of a lighting system.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: November 2, 2021
    Assignee: Synapse Wireless, Inc.
    Inventor: Jeremy Jacob Zoller
  • Shape measuring device for hose connector fitting
    Patent number: 11156452
    Abstract: Provided is a shape measuring device for a hose connector fitting. Two-dimensional shape detection units detect radial position data of a surface of a socket in radial direction with respect to an axial center of a hose connector fitting along a direction parallel with the axial center of the hose connector fitting completely across a circumference of the socket. The measurement data relates to the surface of the socket, including outer diameters, crimping positions, crimping claw remaining widths, roundness, and cylindricity of the socket.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: October 26, 2021
    Inventors: Takayuki Saito, Akira Onodera
  • Optical density instrument and systems and methods using the same
    Patent number: 11141733
    Abstract: Instruments, systems, and methods for measuring optical density of microbiological samples are provided. In particular, optical density instruments providing improved safety, efficiency, comfort, and convenience are provided. Such optical density instruments include a handheld portion and a base station. The optical density instruments may be used in systems and methods for measuring optical density of biological samples.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: October 12, 2021
    Assignee: BIOMERIEUX, INC.
    Inventors: Perry D. Stamm, Joel Patrick Harrison, Gregory R. Maes, Jeffrey Edward Price, Jack R. Hoffmann, Jr., John Kenneth Korte, Daniel Joseph Pingel, Walter J. Clynes, Sean Gregory Furman, Leonard H. Schleicher, Christopher George Kocher, Brian David Peterson, Jacky S. Yam
  • Sensor system for detecting contaminant in fluid
    Patent number: 11143582
    Abstract: A sensor system for sensing contaminants within a fluid stream of a fluid system includes a sensor body and an arm extending from the sensor body to a distal end of the arm, a laser light source configured to direct a laser beam outwardly from an outlet of the sensor body, and a light sensor. A fiber optic light guide is disposed in the sensor body and extends from the light sensor to an inlet of the sensor body for directing light to the light sensor. A beam dump is positioned at the distal end opposite the laser light source to absorb at least a portion of the laser beam directed towards the distal end. A blocking member of the arm is disposed intermediate between the sensor body and the distal end and is configured to partially restrict a field of intake of light at the inlet.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: October 12, 2021
    Assignee: Parker-Hannifin Corporation
    Inventors: Lewis A. Wolfe, Jeffery W. Gibson, Thomas Muzik, Michael A. White
  • Methods and apparatus for reducing measurement artifacts of sensor measurements
    Patent number: 11137354
    Abstract: Methods and apparatus for reducing measurement artifacts of sensor measurements are disclosed herein. An aspect of the invention includes a measurement device configured to reduce measurement inaccuracies in a sample. The measurement device comprises a measurement probe comprising a sensor configured to detect a characteristic of the sample and generate a measurement signal based thereon. The measurement device further comprises a memory configured to store instructions for applying a filter to the measurement signal. The measurement device also further comprises a filtering module configured to process the instructions for applying the filter to the measurement signal to generate a filtered output with reduced measurement inaccuracies.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: October 5, 2021
    Assignee: BROADLEY-JAMES CORPORATION
    Inventors: William E. Reynolds, IV, Robert J. Garrahy, Jared H. Nathanson, Bradley Joseph Sargent, Scott T. Broadley
  • Optical absorption spectroscopy based gas analyzer systems and methods
    Patent number: 11131626
    Abstract: The present invention provides a system for measuring concentrations of trace gases in gas mixtures using an absorption spectroscopy method. The system comprising: a resonant optical cavity containing a gas mixture, a continuous-wave external cavity laser, a detector system for measuring an absorption of laser light by the gas in the resonant optical cavity, wherein the ratio of the round-trip length of the external cavity laser to the round-trip length of the resonant optical cavity or its inverse value is between N?0.2 and N+0.2, where N is a positive integer number.
    Type: Grant
    Filed: June 21, 2020
    Date of Patent: September 28, 2021
    Inventor: Serguei Koulikov
  • Tread depth measurement
    Patent number: 11130373
    Abstract: A method of generating a three-dimensional topological surface representation of a tyre on a vehicle, the method comprising: using a tread depth measurement device to record tread depth data for a tyre surface moving relative to the tread depth measurement device; generating a movement profile of the tyre surface; and using the movement profile of the tyre surface to map the tread depth data onto a base tyre structure, thereby generating a three-dimensional topological surface representation of the tyre.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: September 28, 2021
    Assignee: SIGMAVISION LTD.
    Inventors: Andrew Pryce, Bjorn Gustavsson, Kshitij Sisodia
  • Systems, devices, and methods for combined wafer and photomask inspection
    Patent number: 11125677
    Abstract: Systems, devices, and methods for combined wafer and photomask inspection are provided. In some embodiments, chucks are provided, the chucks comprising: a removable insert, wherein the removable insert is configured to support a wafer so that an examination surface of the wafer lies within a focal range when the chuck is in a first configuration, wherein the removable insert is inserted into the chuck in the first configuration; and a first structure forming a recess that has a depth sufficient to support a photomask so that an examination surface of the photomask lies within the focal range when the chuck is in a second configuration, wherein the removable insert is not inserted into the chuck in the second configuration.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: September 21, 2021
    Assignee: Nanotronics Imaging, Inc.
    Inventors: Randolph E. Griffith, Jeff Andresen, Scott Pozzi-Loyola, Michael Moskie, Steve Scranton, Alejandro S. Jaime, John B. Putman
  • Optical absorption spectroscopy based gas analyzer systems and methods
    Patent number: 11125682
    Abstract: The present invention provides a system for measuring concentrations of trace gases in gas mixtures using an absorption spectroscopy method. The system comprising: a resonant optical cavity containing a gas mixture, a continuous-wave external cavity laser, a detector system for measuring an absorption of laser light by the gas in the resonant optical cavity, wherein the ratio of the round-trip length of the external cavity laser to the round-trip length of the resonant optical cavity or its inverse value is between N?0.2 and N+0.2, where N is a positive integer number.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: September 21, 2021
    Inventor: Serguei Koulikov
  • Systems and methods for measuring spectral absorption by objects
    Patent number: 11125683
    Abstract: Identifying object characteristic based on a contrast ratio of an amount of light reflected or absorbed by the object. Part of the object is illuminated, where the object is a material that absorbs or reflects light emitted by the light source. An amount of light absorbed/reflected by the object is measured. A contrast ratio of the absorbed/reflected light is determined by comparing an amount of light absorbed/reflected by the object to a default absorption or reflection value to obtain a difference between the amount of light absorbed/reflected by the object and the default absorption/reflection value. A characteristic of the object is determined based on the contrast ratio. The wavelength of the light from the light source can be substantially the same as the wavelength of the energy used to form the object by a welding process that uses energy to join at least two parts together to form the object.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: September 21, 2021
    Assignee: Dukane IAS, LLC
    Inventor: Dax Hamilton
  • Work support system and work support method
    Patent number: 11118899
    Abstract: A work support system includes a measurement apparatus measuring a state of each of multiple measurement points on an object surface of a workpiece, a projector apparatus, and an arithmetic apparatus creating a projection image of the projector apparatus based on a measurement result of the measurement apparatus. The arithmetic apparatus calculates a difference between a state measured by the measurement apparatus and a target state for each of the multiple measurement points, and creates the projection image such that a picture of a characteristic point representative of the difference at each of the multiple measurement points is projected by the projector apparatus at a position of a corresponding measurement point on the object surface of the workpiece.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: September 14, 2021
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Atsuki Nakagawa, Naohiro Nakamura, Masahiro Iwamoto, Shigekazu Shikoda
  • Optical particle sensor and sensing method
    Patent number: 11119028
    Abstract: An optical particle sensor comprises at least first and second light sources of different wavelength for sequential operation. An optical detector is used to detect light from the light sources emitted or scattered by particles to be sensed. A current injection compensation signal is also provided which is dependent on which light source of the optical arrangement is in use. The compensation signal means the amplifier does not need to re-settle in response to different background illumination levels associated with the different light sources. In this way, detection signals may be obtained in quick succession from different light sources.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: September 14, 2021
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Paul Van Der Sluis
  • Devices and processes for detecting surface defects
    Patent number: 11105614
    Abstract: A device for detecting defects on at least one surface may include: a source configured to emit electromagnetic radiation in at least one first spectral band; a video camera sensitive in at least one second spectral band; and a diffuser configured to intercept at least part of the electromagnetic radiation emitted by the source and to make more homogeneous a spatial distribution of intensity of the electromagnetic radiation over the at least one surface. The source may be further configured to project a beam of the electromagnetic radiation onto the at least one surface. An intersection of the at least one first spectral band and the at least one second spectral band may determine a spectral working band. A bandwidth of the spectral working band may be less than or equal to 200 nanometers (nm). The spectral working band may be between 300 nm and 1,100 nm.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: August 31, 2021
    Assignee: TEKNO IDEA S.R.L.
    Inventors: Bruno De Nisco, Alessandro Di Girolamo
  • Use of a contactlessly working optical laser triangulation method for determining geometric properties of a brake lining
    Patent number: 11099006
    Abstract: The invention relates to a use of a contactlessly working optical laser triangulation method for detecting at least one geometric property of a brake lining of a disc brake of a vehicle and/or of at least one component of the components of the brake lining before an initial commissioning or before an assembly of the brake lining and/or the at least one component of the components of the brake lining in the disc brake.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: August 24, 2021
    Inventor: Peter Kleeberger
  • Device and method for measuring objects
    Patent number: 11092428
    Abstract: A device for receiving an object for three-dimensional measurement includes at least one bearing point for bearing the object, the at least one bearing point being configured to limit the object movement in at least one degree of freedom of the object and the entirety of all used bearing points being configured to limit the object movement in exactly all degrees of freedom of the object.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: August 17, 2021
    Assignee: GOM GmbH
    Inventors: Omar Abo-Namous, Jan Thesing, Alexander Zimmermann, Witalij Wambold
  • Method for detecting concentration of particles in fluid
    Patent number: 11092534
    Abstract: A method for detecting the concentration of particles in a fluid is disclosed. The method comprises the steps of: S1: introducing a pure fluid into a detection device to obtain a scatter background noise value U noise output by the detection device; S2: introducing a fluid to be detected into the detection device, obtaining scatter signals output by the detection device, and obtaining voltage signals of standard particles; S3: sampling signals of the fluid in a certain period of time, extracting effective signals, carrying out threshold value analysis on the effective signals Ux obtained by sampling, and obtaining the number of particles present in the period of time; and S4: obtaining the concentration of the particles in the fluid according to the number of particles in S3. According to this method, the accuracy in calculation of the concentration of particles in a fluid can be effectively improved.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: August 17, 2021
    Assignee: FATRI UNITED TESTING & CONTROL (QUANZHOU) TECHNOLOGIES CO., LTD.
    Inventors: Yongzhong Nie, Zhongping Zhang