Using Optical Sensor Or Element Patents (Class 73/1.45)
  • Patent number: 12000746
    Abstract: A sensing device for a windshield includes an attachment member attachable to a surface of the windshield and a sensing element having a transducer. The attachment member has a pressing device. The pressing device applies a pressure on or over the transducer when the attachment member is attached to the surface and presses the transducer against the surface.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: June 4, 2024
    Assignee: MEAS France
    Inventors: Vincent Leger, Yannick Vidal
  • Patent number: 10331086
    Abstract: A method for authenticating a timepiece including measuring acoustic vibrations emitted by said timepiece to obtain an electrical signal, said electrical signal indicating a variation of a magnitude of said measured acoustic vibrations as a function of time, wherein said electrical signal comprises a plurality of acoustic events associated with mechanical shocks taking place in said timepiece, extracting from said electrical signal or from a representation of said electrical signal in a time, frequency or time-frequency domain at least one of a magnitude information on a magnitude of one of said plurality of acoustic events, time information on said one of said plurality of acoustic events, and a frequency information on a frequency of said one of said plurality of acoustic events, comparing said extracted information with at least one of a reference information, and deriving information on an authenticity of said timepiece based on the comparing.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: June 25, 2019
    Assignee: SICPA HOLDING SA
    Inventors: Eric Decoux, Andrea Callegari, Lorenzo Sirigu
  • Patent number: 8567959
    Abstract: An optical device is capable of controlling a projector, wherein the projector is capable of wirelessly receiving an image signal from a data source, combining an identification signal into the image signal to generate a projection signal, and projecting a projection image according to the projection signal. The optical device includes an optical sensor. The optical sensor is capable of sensing the identification signal of the projection image, outputting a detection signal corresponding to the identification signal and wirelessly transmitting the detection signal to the projector. A projection system including a projector and an optical sensor is provided as well.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: October 29, 2013
    Assignee: Coretronic Corporation
    Inventors: Jung-Tsun Lien, Wei-Ting Yen, Chien-Yi Yang
  • Patent number: 8520986
    Abstract: A method for monitoring the operating conditions of an electric generator for mechanical strain and temperature includes means of distributive fiber optic sensors based on both Rayleigh back scattering techniques and Brillouin frequency shift fiber optic sensor analysis as both Rayleigh and Brillouin scans and allow accurate strain and temperature determinations at all points along standard fiber optic cables of considerable length, which effectively yields thousands of sensors throughout the entire standard fiber optic cable. Raman distributive temperature sensing also has a limited application. Single mode and polarizing maintaining fibers can both be analyzed and read with any Rayleigh or Brillouin distributive fiber optic sensor laser system allowing great flexibility in sensor spatial resolution, total sensed length, resolution and other factors.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: August 27, 2013
    Inventor: George Franklin Dailey
  • Patent number: 8235534
    Abstract: A projector has: light source (1R, 1G, 1B); a light modulation unit (6) that modulates a light emitted from the light source based on image signals; a display control unit (41) that outputs the image signals including main cyclic image signals to the light modulation unit, and controls the display thereof; a projection unit (7) that projects the image based on the light modulated by the light modulation unit; and an imaging unit (40) that captures an image to be displayed based on the light projected from the projection unit, and the display control unit inserts a correction image signal for projecting a correction image, which is visually recognized as a uniform white or gray screen when time integration is performed, between the cyclic main image signals.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: August 7, 2012
    Assignee: Panasonic Corporation
    Inventors: Kenji Nakayama, Tatsuo Itoh, Hiroyuki Furuya, Shinichi Kadowaki, Kazuhisa Yamamoto
  • Patent number: 8139905
    Abstract: A temperature sensor is disclosed. The sensor includes an optical fiber and at least one twin-grating structure formed on the optical fiber. Each twin-grating structure includes a first optical grating structure, a second optical grating structure adjacent the first optical grating structure, and a sensing cavity disposed between the first and second optical grating structures. Each twin-grating structure is selectively responsive to a unique wavelength of light to generate an optical interference fringe signal. For each twin-grating structure, an optical property of the twin-grating structure and a phase of the optical interference fringe signal generated by the twin-grating structure are determined by a temperature of the twin-grating structure.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: March 20, 2012
    Inventor: Michael Louis Bazzone
  • Patent number: 8098967
    Abstract: A magnetic flux sensor is disclosed. The sensor comprises an optical fiber and at least one twin-grating structure formed on the optical fiber. Each twin-grating structure comprises a first optical grating structure, a second optical grating structure adjacent the first optical grating structure, and a sensing cavity disposed between the first and second optical grating structures. Each twin-grating structure is selectively responsive to a unique wavelength of light to generate an optical interference fringe signal. The sensor also includes a magnetostrictive coating disposed over each twin-grating structure to change an optical property of the twin-grating structure and a phase of the optical interference fringe signal when the magnetostrictive coating is exposed to changing magnetic flux.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: January 17, 2012
    Inventor: Michael Louis Bazzone
  • Patent number: 7834940
    Abstract: A display device that includes a first substrate having pixel electrodes; a second substrate having a color filter corresponding to the pixel electrodes to display images; a photo switching element disposed at the first substrate; a red or green color filter corresponding to the photo switching element formed at the second substrate to sense an amount of external light; a driving controller configured to output a driving control signal responsive to the amount of external light sensed by the light sensing unit; and a light generation unit configured to provide the display unit with an internal light controlled by the driving control signal. This photo sensor is well suited to human-eye luminosity and uses external light to determine how much backlight is needed.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: November 16, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Tsutomu Uemoto
  • Patent number: 7770433
    Abstract: The humidity detector comprises a housing adapted to hold a humidity sensor towards the windscreen of a vehicle or any other type of window. A flexible printed circuit board is arranged between the humidity sensor and the windscreen and provides a connection between the humidity sensor and further circuitry of the detector. The humidity sensor is located under a cap, which is engaged by a glider member. A spring pushes the glider member towards the windscreen.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: August 10, 2010
    Assignee: Sensirion AG
    Inventors: Urs Rothacher, Felix Mayer, Moritz Lechner, Vincent Hess
  • Patent number: 7684692
    Abstract: The invention includes an image sensor, a shutter which opens/closes by making a front curtain and a rear curtain travel, a light source which illuminates the image sensor, a control unit which performs control to make the front and rear curtains travel with a predetermined time shift to form a slit-like opening, and to make the light source emit light a predetermined period of time after the start time of traveling of the front and rear curtains, a detection unit which detects the deviation between the position of an image of the recorded slit-like opening and a predetermined reference position, a computation unit which calculates the error between the traveling start timing of the front and rear curtains on the basis of the detected deviation, and a correction unit which corrects the calculated error between the traveling start timing of the front and rear curtains.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: March 23, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Ritsuo Kashiyama
  • Patent number: 7285420
    Abstract: A system and method are described herein for self-referencing a sensor that is used to detect a biomolecular binding event and/or kinetics which occur in a sample solution flowing along side a reference solution in a micron-sized deep flow channel.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: October 23, 2007
    Assignee: Corning Incorporated
    Inventors: Norman H. Fontaine, Prantik Mazumder, Mark A. Quesada, Eric J. Mozdy, Po Ki Yuen
  • Patent number: 6850857
    Abstract: The present invention is directed to improving the accuracy with which a stationary array sensor provides cross directional measurements by providing an offset compensation to the stationary array sensor using the output of a scanning sensor associated with the manufacturing process. Exemplary embodiments correlate outputs from the stationary sensor array and the scanning array using a data reconciliation process. For example, a practical, real time data reconciliation of measurements from the scanning sensor and measurements from the stationary array sensor is achieved by computing offsets using a bank of Kalman filters to correlate outputs from the two sensors for each measurement zone, wherein each filter possesses a relatively simple computational structure. The Kalman filters can fuse the outputs from the stationary array sensor and the scanning sensor to track, and compensate, drift of the stationary array sensor.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: February 1, 2005
    Assignee: Honeywell International Inc.
    Inventors: Mario Ignagni, Dimitry Gorinevsky
  • Publication number: 20040216510
    Abstract: A method and apparatus for controlling fraction collection in an eluent stream flowing from an LC column. A triggering detector recognizes the presence of a target substance according to characteristics of chromatographic peaks in the eluent stream and initiates a delay timer to trigger the fraction collector. A waste stream detector is disposed at any distance from the fraction collector to detect peaks in the waste stream flowing from a fraction collector. The signature of fraction collector actuation is seen by the waste stream detector, permitting the delay time to be adjusted for optimal collection of the target compound. The presence or absence of a peak or the characteristics of a remnant peak detected by the waste stream detector are used to confirm that the target component of the eluent stream was collected as intended by the fraction collector.
    Type: Application
    Filed: May 1, 2003
    Publication date: November 4, 2004
    Inventors: Anthony Gilby, Andrew Simon Craze
  • Patent number: 6708132
    Abstract: An improved microsystems testing and characterization system which allows the system user to identify specific structures, and thereby to initiate an automated testing sequence to be applied to that structure or a series of structures. The integrated control system that governs the present invention automates the power supply to the device under test, the precision motion control of all components, the sensor operation, data processing and data presentation. Therefore operation is autonomous once the microstructure is in place and the testing sequence is specified. The integrated testing system can be used to perform tests on an entire wafer or on a single die.
    Type: Grant
    Filed: November 23, 2001
    Date of Patent: March 16, 2004
    Assignee: InterScience, Inc.
    Inventors: Adolfo O. Gutierrez, Steven C. Aceto, Michelle D. Simkulet
  • Patent number: RE43117
    Abstract: The invention is an apparatus and method including hardware and software, which allows collecting and analyzing data to obtain information about mechanical properties of soft materials in a much faster way. The apparatus can be used as a stand-alone deice or an add-on to the existing AFM device. The apparatus allows collecting dynamical measurements using a set of multiple frequencies of interest at once, in one measurement instead of sequential, one frequency in a time; measurements.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: January 17, 2012
    Assignee: Clarkson University
    Inventor: Igor Sokolov