Measuring, Testing, And Calibrating Patents (Class 358/504)
  • Patent number: 11868070
    Abstract: A method for reducing artifacts in an electrophotographic printing system includes receiving a print job including image data for a set of pages. The electrophotographic printing system is used to print a block of pages from the print job to provide corresponding printed pages. The image data for the block of pages is analyzed to determine an average toner usage rate. If the determined average toner usage rate for the block of pages falls outside an acceptable toner usage rate range, image data for a compensation image and a number of compensation images are determined such that the average toner usage rate will be brought back into the acceptable toner usage rate range.
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: January 9, 2024
    Assignee: EASTMAN KODAK COMPANY
    Inventor: Chung-Hui Kuo
  • Patent number: 11827486
    Abstract: An image forming apparatus includes a conveyance unit, a detection unit, and a determination unit. The conveyance unit conveys a sheet. The detection unit detects a sound that emanates when the conveyance unit operates. The determination unit performs state determination. In a case where a volume of a sound detected by the detection unit is not higher than or equal to a predetermined sound volume, the determination unit determines that the conveyance unit is not normally operating. In a case where the detected sound volume is higher than or equal to the predetermined sound volume, the determination unit determines that the conveyance unit is normally operating.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: November 28, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kosuke Ogino, Hajime Sugaya, Hiroshi Hagiwara
  • Patent number: 11743412
    Abstract: A scanner calibration system is provided. The scanner calibration system includes memory configured in a format to store therein encoded gain and offset parameters. Such a configuration reduces the amount of required memory for the scanner calibration system without a compromise of performance.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: August 29, 2023
    Assignee: XEROX CORPORATION
    Inventors: Jason Roy, John Guarrera, William David Notovitz, Michael John Wilsher
  • Patent number: 11386312
    Abstract: An image forming apparatus includes a print engine, a sheet transportation unit, an optical sensor, and an image processing unit. The print engine is configured to physically print an image to be printed on a print sheet. The sheet transportation unit is configured to transport the print sheet along a predetermined transportation path. The optical sensor is arranged so as to face the transportation path, and configured to detect a color of a test chart on a colored print sheet transported along the transportation path. The image processing unit is configured to perform color correction of the image to be printed on the colored print sheet, on the basis of the detected color of the test chart on the colored print sheet so as to restrain color change of the image due to a surface color of the colored print sheet.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: July 12, 2022
    Inventors: Yuki Fukasawa, Atsushi Kimura, Shin Ishikawa, Hikaru Miyaji, Kosuke Nakajima, Yosuke Morishita, Masaaki Nishihara
  • Patent number: 11360420
    Abstract: An image forming apparatus includes an image forming unit having a plurality of members, a control unit, and a sound collecting unit. The control unit controls operations of the plurality of members in a first operation mode in which the image forming unit forms an image on a recording material. The sound collecting unit collects a sound that arises in the image forming apparatus during the first operation mode execution to generate a sound signal. When it is determined, based on the generated sound signal, that an abnormal sound has arisen, the control unit determines a source of the abnormal sound by transitioning to a second operation mode after the first operation mode has ended and causing, in the second operation mode, one or more members, from the plurality of members, that are possible sources of the abnormal sound to operate separately from the remaining plurality of members.
    Type: Grant
    Filed: April 2, 2021
    Date of Patent: June 14, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Seiji Hara, Yohei Suzuki, Masafumi Monde, Hiroshi Hagiwara, Yoshitaka Zaitsu, Hiromitsu Kumada
  • Patent number: 11356581
    Abstract: On a recording sheet of a first size, an image combined with gradation patches of a plurality of colors is printed, on a recording sheet of a second size smaller than the first size, images combined with the gradation patches of the plurality of colors are divided and printed into a plurality of recording sheets, color measurement is performed on each of the gradation patches, and gradation correction data is generated.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: June 7, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Aya Kasahara, Masaki Kashiwagi, Junichi Mori
  • Patent number: 11301181
    Abstract: An electronic apparatus includes a sound collecting device, a storage device, a display device, and a control device. The storage device contains a normal spectrogram representing the operation sound of each of functional units, acquired when low-speed operation is normally performed, and a timing chart indicating a timing that each functional unit operates when the electronic apparatus performs the low-speed operation. The control device analyzes frequency of the sound data collected by the sound collecting device when the electronic apparatus performs the low-speed operation, and outputs the spectrogram, decides whether abnormal noise has occurred, by comparison between the outputted spectrogram and the normal spectrogram, identifies, upon deciding that abnormal noise has occurred, the functional unit that is a source of the abnormal noise, by comparison between the timing chart and the outputted spectrogram, and causes the display device to display a first screen indicating the identified functional unit.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: April 12, 2022
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Lin Lu
  • Patent number: 11303782
    Abstract: A image forming apparatus includes a display, a user input device, a printer unit, and a processor. The processor causes a color patch image output screen to be displayed. The color patch image output screen includes user selectable hues. Once the hue selection is received a color patch image based on the hue selection is displayed. The color patch image includes several different colors indexed by a color number value. A color patch number input screen is then displayed and includes a color to be adjusted input field and a target color input field. User inputs for a first color patch number and a second color patch number are received via the displayed screen. The processor then performs a color conversion such that the first color patch number corresponds to the second color patch number when the printer unit prints an image using the image data.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: April 12, 2022
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Kiyoshi Iwaki
  • Patent number: 11300914
    Abstract: An image forming apparatus includes an image forming unit and a reading unit. The image forming unit is configured to form an image. The reading unit has a first reading mode, in which a document conveyed by a conveyance unit is read, and a second reading mode, in which a document placed on a platen glass is read. A first correction mode, in which correction data is generated using a result of reading the test document in the first reading mode, or a second correction mode, in which correction data is generated using a result of reading the test document in the second reading mode, is executed based on a result of detection of placement of a test document on the reading unit.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: April 12, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventor: Keita Hidaka
  • Patent number: 11210483
    Abstract: Techniques for characterizing an optical system (for example, a printer verifier) are provided. In this regard, the optical system may be characterized for scanning a printed image. The characterization of the optical system includes determining an effective aperture size of the optical system, and correspondingly an effective resolution at which the optical system can be configured to scan a portion of the printed image according to verification requirements.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: December 28, 2021
    Assignee: DATAMAX-O'NEIL CORPORATION
    Inventors: H Sprague Ackley, Si Qian, Thomas Axel Jonas Celinder, Sebastien d'Armancourt
  • Patent number: 11196876
    Abstract: The embodiment of the present invention provides a method for a 3-D projection printing system and a system thereof, more particularly to a system adopts both ways of look-up table and interpolation method to calibrate. The embodiment of the present invention provides a portable calibration fixture system and a flexible 3-D projection printing system in order to improve calibration precision, facilitate calibration and printing operations, increase printing effect and save cost.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: December 7, 2021
    Assignee: YOUNG OPTICS INC.
    Inventors: Chao-Shun Chen, Chang-Chun Chen, Ming-Fu Hsu
  • Patent number: 11135834
    Abstract: Certain examples describe a method of calibrating a printer and a printing system. An interferential pattern is printed in the form of a print calibration image on a print medium. Data representative of the interferential pattern as printed on the print medium is detected using an optical sensor. The printer is calibrated based on the captured data. The interferential pattern is based on a waveform that varies in amplitude along an axis perpendicular to a printing axis under calibration and has repeated sets of multiple patterns based on the waveform, the repeated sets having a varying pattern spacing in the printing axis under calibration.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: October 5, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Xavier Quintero Ruiz, Raul Rodriguez Alonso, Montserrat Solano Pallarol
  • Patent number: 11113999
    Abstract: Disclosed is a data processing method, the data processing method includes: determining image data captured in preset grayscale; determining first compensation data of display defect according to the image data; and generating compensation data of the display defect according to the first compensation data and data of the preset grayscale.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: September 7, 2021
    Assignees: Chongqing HKC Optoelectronics Technology Co., Ltd., HKC Corporation Limited
    Inventors: Yunchuan Hu, Wenqin Zhao
  • Patent number: 11109006
    Abstract: There is provided an image processing apparatus and a method that allow for corresponding point detection at a higher speed and with higher accuracy. By outputting invisible light and visible light via the same optical system, an image of the invisible light and an image of the visible light are projected to cause a portion or all of the image of the invisible light and a portion or all of the image of the visible light to be projected in the same region on a projection surface. The present disclosure is applicable to, for example, an image processing apparatus, an image projecting apparatus, an image projection imaging apparatus, a control apparatus, an information processing apparatus, a projection imaging system, an image processing method, a program, or the like.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: August 31, 2021
    Assignee: SONY CORPORATION
    Inventor: Yohsuke Kaji
  • Patent number: 11092662
    Abstract: In an embodiment, an optical sensor includes (i) a first lens array including a plurality of first lenses, (ii) a photodetector array including a plurality of photodetectors each aligned with a respective one of the plurality of first lenses, and (iii) a plurality of signal-modifying elements each aligned with a respective one of the plurality of first lenses. The plurality of signal-modifying elements includes (a) a first signal-modifying optical element having a first spatially-dependent transmission function, and (b) a second signal-modifying optical element having a second spatially-dependent transmission function differing from the first spatially-dependent transmission function.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: August 17, 2021
    Assignee: Ascentia Imaging, Inc.
    Inventors: Edward R. Dowski, Jr., Gregory Johnson
  • Patent number: 11077674
    Abstract: A printing system is disclosed. The printing system includes a printer to print image data to a medium. The printer includes a first pass channel including a first set of pel forming elements to print a first component of the image data and a second pass channel including a second set of pel forming elements to print a second component of the image data, wherein the first component of the image data and the second component of the image data occupy a same region on the print medium. The printing system also includes a print controller to perform uniformity compensation based on a combined compensation of the first pass channel and the second pass channel.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: August 3, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Mikel F. Stanich, Nikita Gurudath, Larry Ernst, William E. Manchester
  • Patent number: 11057545
    Abstract: In an example a method includes deriving a print agent coverage vector specifying an area coverage for each of a plurality of elements, wherein each element is associated with a print agent, a print agent combination or an absence of print agent. Deriving the print agent coverage vector comprises, for a first element of the print agent coverage vector, applying a first weighting function which varies based on an intended area color value.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: July 6, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Peter Morovic, Jan Morovic, Victor Diego Gutierrez, Alex Campa Coloma, Javier Maestro Garcia
  • Patent number: 11025798
    Abstract: A computing device receives first data indicating a first metric of a first printed test area and second data indicating a second metric of a second printed test area. The first printed test area is associated with a first plurality of Neugebauer Primaries and each Neugebauer Primary in the first plurality of Neugebauer Primaries is associated with a respective area coverage in the first printed test area. The second printed test area is associated with a second plurality of Neugebauer Primaries, wherein each Neugebauer Primary in the second plurality of Neugebauer Primaries is associated with a respective area coverage in the second printed test area and the second plurality of Neugebauer Primaries is different from the first plurality of Neugebauer Primaries. The computing device generates third data associating a color in a color space with the first plurality of Neugebauer Primaries or the second plurality of Neugebauer Primaries in dependence on the first metric and the second metric.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: June 1, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Peter Morovic, Jan Morovic, Javier Maestro Garcia, Montserrat Solano Pallarol
  • Patent number: 10997478
    Abstract: An example of an apparatus including a memory to store a plurality of print profiles and sample page data. The apparatus includes a selection engine to select a first print profile and a second print profile from the plurality of print profiles. The apparatus includes a printing device to generate a first print sample in accordance with the first print profile and to generate a second print sample in accordance with the second print profile. The apparatus includes an input device to receive input to identify a preferred print sample. The apparatus includes a processor coupled to the memory and the input device, wherein the processor is to direct the selection engine to select a third print profile based on the first print profile, the second print profile, and the input to generate a third print sample for comparison with the preferred print sample.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: May 4, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: John Michael Heineck, David M Payne
  • Patent number: 10986251
    Abstract: The invention provides a colour standard, assembled from a graphic digital input file, in which one or a combination of CMYK, RGB, Lab or spot colour builds are contained. The colour standard comprises a colour target calibration strip which is indicative of the calibration status of a printing press; an output image which is indicative of the digital input file; and a grid chart of spot colour builds, built-in process inks, with their respective process build values available for each spot colour in the digital input file. The colour standard is configured to capture the calibrated state of the press for a particular digital input file in order to achieve a particular colour-managed output image, so that product print runs of the output image can be repeated accurately and consistently over time.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: April 20, 2021
    Inventor: Hauke Maritz Liefferink
  • Patent number: 10873704
    Abstract: The present invention can provide solutions to many common imaging problems, such as, for example, unevenly distributed illumination, shadows, white balance adjustment, colored ambient light and high dynamic range imaging. Imaging systems and methods can be provided through a computer (e.g., laptop or desktop) such that the system or method can take advantage of the computer's processing power to provide functionality that goes beyond typical camera. Such an imaging system may include an imaging device, a camera, a light source and a user interface.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: December 22, 2020
    Assignee: Apple Inc.
    Inventor: Peter H. Mahowald
  • Patent number: 10789678
    Abstract: A superpixel sampling network utilizes a neural network coupled to a differentiable simple linear iterative clustering component to determine pixel-superpixel associations from a set of pixel features output by the neural network. The superpixel sampling network computes updated superpixel centers and final pixel-superpixel associations over a number of iterations.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: September 29, 2020
    Assignee: NVIDIA Corp.
    Inventors: Varun Jampani, Deqing Sun, Ming-Yu Liu, Jan Kautz
  • Patent number: 10785434
    Abstract: A visible light communication sensor is provided. The visible light communication sensor includes a sensing module, an image data readout circuit, and a visible light communication data readout circuit. The sensing module includes a plurality of pixel units arranged in an array. When the sensing module performs an image sensing operation, a first portion of the pixel units performs an image sensing operation, and the image data readout circuit is idle. When the sensing module performs a visible light communication operation, a second portion of the plurality of pixel units receives a visible light communication signal, so that the visible light communication data readout circuit outputs the visible light communication data, and the image data readout circuit performs an analog-to-digital conversion on a plurality of image sensing signals outputted by the first portion of the plurality of pixel units performed in the image sensing operation to output image sensing data.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: September 22, 2020
    Assignee: Guangzhou Tyrafos Semiconductor Technologies CO., LTD
    Inventors: Ping-Hung Yin, Jia-Shyang Wang
  • Patent number: 10771652
    Abstract: An image is rendered on a display having a limited number of primary colors by (104) combining input data representing the color of a pixel to be rendered with error data to form modified input data, determining in a color space the simplex (208—typically a tetrahedron) enclosing the modified input data and the primary colors associated with the simplex, converting (210) the modified image data to barycentric coordinates based upon the primary colors associated with the simplex and (212) setting output data to the primary having the largest barycentric coordinate. calculating (214) the difference between the modified input data and the output data for the pixel, thus generating error data, applying (106) this error data to at least one later-rendered pixel, and applying the output data to the display and thus rendering the image on the display. Apparatus and computer-storage media for carrying out this process are also provided.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: September 8, 2020
    Assignee: E Ink Corporation
    Inventor: Kenneth R. Crounse
  • Patent number: 10747809
    Abstract: A color information display device includes an extracting unit that extracts a reference color combination corresponding to reference color vision characteristics; an output unit that outputs the reference color combination as it is or after conversion in accordance with a degree of sharing of an impression of the reference color combination between the reference color vision characteristics and other color vision characteristics; and an assigning unit that assigns information indicative of the degree of sharing of the impression to the output reference color combination.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: August 18, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Kazushi Ozawa
  • Patent number: 10650226
    Abstract: Systems and methods for identifying a false representation of a human face are provided. In one example, a method for identifying a false representation of a human face includes receiving one or more data streams captured by one or more sensors sensing a candidate face. In a plurality of stages that each comprises a different analysis, one or more of the data streams are analyzed, and the stages comprise determining whether a plurality of candidate face depth points lies on a single flat plane or a curving plane. Based at least in part on determining that the plurality of candidate face depth points lies on the single flat plane, an indication of the false representation of the human face is outputted.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: May 12, 2020
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Chun-Te Chu, Michael J. Conrad, Dijia Wu, Jinyu Li
  • Patent number: 10616457
    Abstract: An improved system and methods for enhancing the imaging of cameras included with wireless mobile devices, such as cellular phone or tablets. The imaging system includes a releasable optical attachment for imaging skin surfaces and cavities of the body. The releasable optical attachment comprises optical enhancement elements such as magnifying lenses, illumination diverting elements, and filters. Images can be viewed and analyzed on the mobile device, or transmitted to another location/device for analysis by a person or software. The results can be used to provide diagnosis, or for a variety of other applications including image comparison over time and product recommendations.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: April 7, 2020
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Daniel Fletcher, Erik Douglas, Amy Sheng, Wilbur Lam, Robi Maamari
  • Patent number: 10540582
    Abstract: The purpose of the present invention is to create a color conversion table with good gradation using a plurality of inks from a printer. Provided is a method for creating a color conversion table, the method comprising: a virtual color value determination process in which a plurality of virtual color values at a lattice point in a color conversion table in a virtual color space are determined; and an ink amount determination process in which a combination of ink amounts at the lattice point in the color conversion table is determined on the basis of a predetermined conversion coefficient and the virtual color values. At least one of the virtual color value determination process and the ink amount determination process is executed using a cubic spline function that is defined from the plurality of virtual color values or the ink amounts.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: January 21, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Takashi Ito
  • Patent number: 10508208
    Abstract: The present invention relates to a process for printing multicoloured printed images in which exclusively interference pigments are used for the coloured pigmentation of the printing inks, to printed products produced using a process of this type, to the use thereof, and to suitable interference pigments.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: December 17, 2019
    Assignee: Merck Patent GmbH
    Inventors: Peter Clauter, Cairon Platzer, Kirsten Fritsche, Marc-Dieter Weingart, Lorenz Boegli, Christoph Schmidt
  • Patent number: 10445607
    Abstract: An imaging system (e.g., hyperspectral imaging system) receives an indication to compare a first object and a second object (e.g., two anatomical structures or organs in a medical environment). The imaging system accesses a classification vector for the first object and the second object, the classification vector having been extracted by separating a plurality of collected reflectance values for the first object from a plurality of collected reflectance values for the second object. A set of optimal illumination intensities for one or more spectral illumination sources of the imaging system is determined based on the extracted classification vector. The first and second objects are illuminated with the determined illumination intensities. A high-contrast image of the first and second objects is provided for display, such that the two objects can be readily distinguished in the image. The intensity of pixels in the image is determined by the illumination intensities.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: October 15, 2019
    Assignee: Verily Life Sciences LLC
    Inventors: Eden Rephaeli, Vidya Ganapati, Daniele Piponi, Thomas Teisseyre
  • Patent number: 10444693
    Abstract: An image forming apparatus includes a plurality of image forming units configured to form images of different colors on a transfer member, a comparator configured to compare values of color patterns measured by a sensor with a threshold, and a controller configured to determine whether the threshold corresponds to a target threshold for a current color pattern among the color patterns while the color patterns are measured by the sensor, detect color misregistration concerning the color patterns based on a comparison result of the comparator, and control relative positions of images of the different colors to be formed by the plurality of image forming units, based on the color misregistration.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: October 15, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masayuki Hirano, Koichiro Ino
  • Patent number: 10402951
    Abstract: An image processing element 4 (image processing apparatus) of the present invention, the benchmark value calculation element 41 calculates a benchmark value indicating the unevenness level of the brightness value from the brightness distribution in the proximity of pixels and the area-dividing element 43 sets up the enhancement level (property of the filter or intensity of the filter) corresponding to the unevenness level of the benchmark value per se every divided divided-area, so that an adjustment corresponding to the level of the brightness value is unnecessary and the enhancement processing can be executed in high-accuracy from a low-brightness portion to a high-brightness portion. In addition, no setting depending on the brightness value is mandatory, so that a fine setting and a fine adjustment prior to imaging is unnecessary and a highly-accurate processing can be executed securely even when the imaging environment and an imaging condition change.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: September 3, 2019
    Assignee: SHIMADZU CORPORATION
    Inventor: Yoshinori Ohno
  • Patent number: 10346710
    Abstract: Various embodiments of the systems and methods described herein are directed towards training an artificial neural network to identify color values of a sample by providing image data obtained through multiple image capture devices under a plurality of lighting conditions. The present invention also includes using a pre-trained neural network to identify the color values of a sample having an unknown color value by capturing an image of an unknown color sample and known color reference samples under any illumination or hardware configuration.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: July 9, 2019
    Assignee: Datacolor Inc.
    Inventor: Zhiling Xu
  • Patent number: 10346967
    Abstract: Streaks in images are detected by determining a rotation angle of an image and calculating a rotated image based on a rotation of the image by the rotation angle. A cross-sectional pixel profile of the rotated image is determined and a peak in the cross-sectional pixel profile of the rotated image is determined. A streak in the image is identified based on the determined peak.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: July 9, 2019
    Assignee: HP Indigo B.V.
    Inventors: Liron Itan, Oren Haik, Avi Malki
  • Patent number: 10345154
    Abstract: An infrared sensor assembly for sensing infrared radiation comprises infrared sensing elements and the infrared sensing compensation elements that are different so that, for a same flux on the infrared sensing elements and the infrared sensing compensation elements, the radiation responsive element of the infrared sensing elements absorbs more radiation than the radiation responsive element of the infrared sensing compensation elements, as to receive substantially more radiation than the radiation responsive element of the infrared sensing compensation elements. An output of the sensor array is a subtractive function of a sum of the signals of the plurality of infrared sensing elements and a sum of the signals of the plurality of the infrared sensing compensation elements such that at least linear and/or non-linear parasitic thermal fluxes are at least partly compensated for.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: July 9, 2019
    Assignee: MELEXIS TECHNOLOGIES NV
    Inventors: Carl Van Buggenhout, Ben Maes, Karel Vanroye, Stijn Reekmans
  • Patent number: 10326916
    Abstract: An inspection apparatus includes circuitry to acquire a first scanned image by scanning each recording media printed with a target image, acquire a second scanned image by scanning one recording medium printed with a color chart including a plurality of color patches, generate index color information including information of index colors having higher frequency of occurrence on the one recording medium for each of the color patches, generate color conversion information by associating each of the color patches and each of the index colors, generate a reference image for each of the index colors by performing a color conversion of the target image by applying the color conversion information, calculate a difference of a color value of each pixel configuring the first scanned image and a color value of each pixel of each of reference images, and inspect the printed matter based on a plurality of color difference values.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: June 18, 2019
    Assignee: Ricoh Company, Ltd.
    Inventor: Takahiro Fukase
  • Patent number: 10313562
    Abstract: A correction table generation method includes acquiring a first color value of an apparatus non-dependent color system corresponding to an input value of a multi-dimensional apparatus dependent color system in an input lattice point of the color conversion table and generating a multi-dimensional conversion table in which a first apparatus dependent value of the apparatus dependent color system having color conversion table color value characteristics is correlated with a second apparatus dependent value having a color value of the apparatus non-dependent color system and approximate linearity over multiple dimensions, and the generating of the multi-dimensional conversion table includes determining a target color value for multiple dimensions having approximate linearity over the multiple dimensions with respect to the input value, and determining a first apparatus dependent value corresponding to a second apparatus dependent value using the input value, the target color value for the multiple dimensions, an
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: June 4, 2019
    Assignee: Seiko Epson Corporation
    Inventor: Takashi Ito
  • Patent number: 10257392
    Abstract: An image formation device includes an image formation section that forms an image on a transfer medium, and a control section that acquires a read image for which the image formed on the transfer medium is read, the control section has a function of determining abnormality regarding the read image, and a function of performing masking processing on the read image in a case where user content is included in the read image.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: April 9, 2019
    Assignee: Konica Minolta, Inc.
    Inventor: Mitsunori Nakamura
  • Patent number: 10229485
    Abstract: Provided is an information processing apparatus including: a photographing information acquisition unit configured to acquire an image at a time of photographing photographed by a camera and a temperature of an illumination light source at the time of photographing; and a correction unit configured to correct a brightness of the image at the time of photographing or an exposure time period of the camera on the basis of the temperature of the illumination light source at the time of photographing, the brightness of the image at the time of photographing, and temperature characteristics of the illumination light source, the temperature characteristics having been prepared in advance.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: March 12, 2019
    Assignee: SONY CORPORATION
    Inventors: Yusuke Nakamura, Toru Igami
  • Patent number: 10165141
    Abstract: An image forming apparatus includes: an image forming section that forms an image; and an image forming control section that acquires information on a detection result of the image by a first image detecting section which has relatively higher failure detection accuracy than that of a second image detecting section, and information on a detection result of the image by the second image detecting section which has relatively higher color measurement accuracy than that of the first image detecting section, wherein the image forming control section acquires second image detection information in a region that has been detected by the second image detecting section and in which an exclusion detection region has been removed, based on the exclusion detection region that has been determined to contain a failure in the image, by first image detection information based on the detection result of the first image detecting section.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: December 25, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Kenichi Hayashi, Hiroyuki Futami, Katsunori Takahashi, Takashi Nara, Tatsuhiro Noutomi
  • Patent number: 10129436
    Abstract: A image forming system of the present inventation includes a control section that causes a pattern image for image density control to be formed on an image carrier, and performs density correction control for correcting a density of a formed image on the basis of density information on the formed pattern image for image density control, wherein the control section determines a timing for performing the density correction control, on the basis of information corresponding to a density difference generated between images formed by the plurality of image forming apparatuses.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: November 13, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventor: Takenobu Kimura
  • Patent number: 10040277
    Abstract: In order to improve a method for optimization in the creation of test charts with the aim of improving the quality of prioritization, the invention proposes a method for optimizing a plurality of test patch-comprising test charts for printing purposes, wherein a prioritization of the test patches is carried out on the basis of the specification of the target printing method, the intended number of colors as well as the color identification and the intended mixing intentions, and a compilation of test patches is made according to that prioritization, wherein the test chart is printed, the printed test chart is colorimetrically measured, and the result is used for optimizing the prioritization.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: August 7, 2018
    Assignee: GMG GMBH & CO. KG
    Inventors: Hanno Hoffstadt, Zoran Subotin
  • Patent number: 10009502
    Abstract: In accordance with an embodiment, an image forming apparatus comprises a deflector, a photoconductor, a mirror, a displacement mechanism and a control section. The deflector deflects laser light emitted from alight source to an optical path of each color in a horizontal scanning direction. The photoconductor is located in each optical path and forms an image of each color through development of an electrostatic latent image formed by being exposed by the laser light. The mirror is located in each optical path and reflects the laser light to each corresponding photoconductor. The displacement mechanism is arranged on each mirror and displaces the mirror in order to correct an inclination shift between images of respective colors. The control section corrects a magnification of the image of each color in the horizontal scanning direction according to an inclination correction amount of the image of each color.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: June 26, 2018
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Takahiro Hamanaka
  • Patent number: 9989405
    Abstract: An infrared sensor assembly for sensing infrared radiation from an object is disclosed. The infrared sensor assembly comprises a sensor array comprising a plurality of sensing elements, provided on or embedded in a substrate extending in a substrate plane. The sensor array comprises at least two infrared sensing elements, each infrared sensing element having a radiation responsive element providing a proportionate electrical signal in response to infrared radiation incident thereto and at least two blind sensing elements, at least one blind sensing element being interspersed among the at least two sensing elements, each blind sensing element being shielded from incident infrared radiation from the object and providing a proportionate electrical signal in response to parasitic thermal fluxes. The output of the sensor array is a function of the infrared sensing elements and of the blind sensing elements such that parasitic thermal fluxes are at least partly compensated for.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: June 5, 2018
    Assignee: MELEXIS TECHNOLOGIES NV
    Inventors: Carl Van Buggenhout, Ben Maes, Karel Vanroye, Stijn Reekmans
  • Patent number: 9992383
    Abstract: A color measurement apparatus includes a color measurement portion, a carriage, and a movement mechanism the color measurement portion starts color measurement after a predetermined initialization process, a moving section between patches from a point P1 to a point P3 overlaps an initialization section where the spot moves at the time of performing the initialization process, and the moving section between the patches is a section between a forward point having a distance as a radius of the spot with respect to the X direction and a backward point having a distance as a radius of the spot with respect to the X direction, based on a boundary of the patches.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: June 5, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Nozomu Hirokubo
  • Patent number: 9967436
    Abstract: An image formation system includes an image formation apparatus that outputs a test chart; and external equipment that generates data for correction of performance of the image formation apparatus based on the test chart output by the image formation apparatus. The image formation apparatus also outputs save location information associated with the test chart. The external equipment transmits the data for performance correction to a location identified by the save location information. The save location information identifies at least a memory device of an apparatus other than the image formation apparatus as a save location to save the data for performance correction. The image formation apparatus corrects performance of the image formation apparatus using the data for performance correction that is obtained from the location identified by the save location information.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: May 8, 2018
    Assignee: Konica Minolta, Inc.
    Inventor: Hiroshi Yamaguchi
  • Patent number: 9929808
    Abstract: The invention relates to a method for determining data embedded into a light output of a light source (121, 122) with an image acquisition device (140, 210) comprising at least a first color channel (212) and a second color channel (214). The method includes adjusting an initial gain of the first color channel (212) and/or an initial gain of the second color channel (214) so that the distribution of a histogram of pixel values for the first color channel (212) is substantially different from the distribution of a histogram of pixel values for the second color channel (214) according to one or more measures of distribution, obtaining one or more images of a scene acquired with the image acquisition device (140, 210) configured with the adjusted gains for the first and second color channels, the scene containing the light output of the light source, and processing at least some of the pixel values of the acquired images to determine the embedded data.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: March 27, 2018
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventor: Frederik Jan De Bruijn
  • Patent number: 9924075
    Abstract: An image processing apparatus includes a control unit configured to control execution of monochromatic calibration and multi-color calibration, and a registration unit configured to register paper types of paper to be used at time of execution of the monochromatic calibration, a monochromatic target value set for each of the paper types used for the monochromatic calibration, paper types of paper to be used at time of execution of multi-color calibration, and a multi-color target value set for each of the paper types used for the multi-color calibration. The image processing apparatus executes the multi-color calibration, after executing the monochromatic calibration, via the control unit by using paper of a paper type selected from common paper types out of the registered paper types and the monochromatic target value and the multi-color target value set for the selected paper type.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: March 20, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hideo Sato
  • Patent number: 9900461
    Abstract: In accordance with an embodiment, an image forming apparatus comprises a deflector, a photoconductor, a mirror, a displacement mechanism and a control section. The deflector deflects laser light emitted from a light source to an optical path of each color in a horizontal scanning direction. The photoconductor is located in each optical path and forms an image of each color through development of an electrostatic latent image formed by being exposed by the laser light. The mirror is located in each optical path and reflects the laser light to each corresponding photoconductor. The displacement mechanism is arranged on each mirror and displaces the mirror in order to correct an inclination shift between images of respective colors. The control section corrects a magnification of the image of each color in the horizontal scanning direction according to an inclination correction amount of the image of each color.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: February 20, 2018
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Takahiro Hamanaka
  • Patent number: 9876943
    Abstract: A system and method for color management of a color printer for correcting color drift using a single unified calibration tone reproduction curve (TRC). The unified calibration TRC may be applied to destination profiles for all halftones during printing. When printer drift occurs, only the unified calibration TRC is recalibrated to create a new unified calibration TRC which is subsequently applied to the destination profiles for all color halftones during printing to correct the color output of the color printer.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: January 23, 2018
    Assignee: XEROX CORPORATION
    Inventors: Guo-Yau Lin, J. Michael Sanchez