Halftoning (e.g., A Pattern Of Print Elements Used To Represent A Gray Level) Patents (Class 358/3.06)
  • Patent number: 11477343
    Abstract: A printing system is disclosed. The printing system includes a printer to print image data to a medium and a print controller including a halftone calibration module to dynamically generate calibrated halftones to compensate for optical density changes that occur at the printer.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: October 18, 2022
    Assignee: Ricoh Company, Ltd.
    Inventors: Mikel Stanich, Nikita Gurudath, Larry Ernst, Walter F. Kailey
  • Patent number: 11410265
    Abstract: A computer vision system is provided that includes a camera capture component configured to capture an image from a camera, a memory, and an image compression decompression engine (ICDE) coupled to the memory and configured to receive each line of the image, and compress each line to generate a compressed bit stream. To compress a line, the ICDE is configured to divide the line into compression units, and compress each compression unit, wherein to compress a compression unit, the ICDE is configured to perform delta prediction on the compression unit to generate a delta predicted compression unit, compress the delta predicted compression unit using exponential Golomb coding to generate a compressed delta predicted compression unit, and add the compressed delta predicted compression unit to the compressed bit stream.
    Type: Grant
    Filed: April 25, 2020
    Date of Patent: August 9, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Hrushikesh Tukaram Garud, Ankit Ajmani, Soyeb Noormohammed Nagori, Mihir Narendra Mody
  • Patent number: 11386472
    Abstract: A unique, user generated product (UGP) configurator, ordering and manufacturing system that utilizes a mobile device or other digital device, to capture a specific color or multiple colors, by way of an image capture converted from a RGB profile and converted into a manufacturable, mixable formula for future mixing and filling in the system specific processing line for enamel product is described.
    Type: Grant
    Filed: June 27, 2020
    Date of Patent: July 12, 2022
    Inventors: Paul Wolff, Sean Stephan
  • Patent number: 11368592
    Abstract: A printing system is disclosed. The printing system includes at least one physical memory device to store calibration logic and one or more processors coupled with the at least one physical memory device to execute the calibration logic to generate a uniformity compensated transfer function for each of a plurality of pel forming elements, generate a missing neighbor corrected transfer function for each of the pel forming elements, generate a missing neighbor transfer function based on the uniformity compensated transfer functions and the missing neighbor corrected transfer function and compute an average of the missing neighbor transfer functions to generate an average missing neighbor transfer function.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: June 21, 2022
    Assignee: Ricoh Company, Ltd.
    Inventors: Walter .F Kailey, Nikita Gurudath, Mikel Stanich, William Manchester, Ziling Zhang
  • Patent number: 11351771
    Abstract: A method for separating printed products, that are printed together onto a sheet of printed products, is disclosed. The printed products are printed onto a sheet in a printing press and are separated in a cutting system by a cutting device. Each of these printed products has an identification feature that identifies its respective position on the sheet. The sheet becomes deformed as it passes through the printing press. The separated printed products, which are likewise deformed, as a result of the deformation of the sheet, are inspected, in a quality control device which is located downstream of the cutting system, for compliance with the tolerance, at least with regard to the respective length or width of the printed products.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: June 7, 2022
    Assignee: KOENIG & BAUER AG
    Inventors: Florian Bumm, Dragan Dragoz, Thomas Pawelak, Jens Sauer, Johannes Schaede, Julian Schubert
  • Patent number: 11280743
    Abstract: Provided herein is an apparatus for assessing a color characteristic of a gemstone. The apparatus comprises an optically opaque platform for supporting a sample gemstone to be assessed, a daylight-approximating light source to provide uniform illumination to the gemstone, an image capturing component, and a telecentric lens positioned to provide an image of the illuminated gemstone to the image capturing component. Also provided are methods of color analysis based on images collected using such an apparatus.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: March 22, 2022
    Assignee: Gemological Institute of America, Inc. (GIA)
    Inventor: Hiroshi Takahashi
  • Patent number: 11253255
    Abstract: A surgical stapling device includes an adaptor assembly and a reload assembly supported on a distal end portion of the adaptor assembly. The reload assembly includes a shell housing, a staple cartridge supporting staples, a staple pusher, a staple actuator, a knife carrier, and a locking member. The staple pusher is movable from a retracted position to an advanced position to eject the staples from the staple cartridge. The staple actuator is movable from a retracted position to an advanced position to move the staple pusher from its retracted position to its advanced position. The knife carrier is movable between a retracted position and an advanced position. The locking member is supported on the knife carrier. The locking member is configured to engage the staple actuator in its advanced position while engaging the knife carrier in its retracted position such that the locking member inhibits re-advancement of the knife carrier.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: February 22, 2022
    Assignee: Covidien LP
    Inventor: Joseph Eisinger
  • Patent number: 11118948
    Abstract: A system and method for displaying a placement array of calibration locations, including capturing image data of a target object located in a workspace using an optical sensor communicatively coupled to a processor. Classification data is received from a database, based on the image data of on the target object within the view of the optical sensor. An origin point of the placement array of calibration locations based on the image data is determined. A plurality of calibration positions for the workspace in relation to the origin point is retrieved from the database, where the calibration locations are based on the classification data from the image data. The placement array of calibration locations is displayed on a display communicatively coupled to the processor in an augmented reality depiction of the workspace, where the placement array of calibration locations is oriented in the workspace based on the origin point.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: September 14, 2021
    Assignee: TOYOTA MOTOR NORTH AMERICA, INC.
    Inventors: Philip W. Ryan, Yeshwant K. Muthusamy, Amit Chaudhary, Tyler Jacob Mironas, Christopher M. Ansert, Srdjan Stekovic
  • Patent number: 11102376
    Abstract: An example system in accordance with an aspect of the present disclosure includes a halftone engine and a gray value engine. The halftone engine is to apply halftoning to an image recursively across a plurality of levels of image scales and spatial resolutions, to generate a pattern that is at least quasi-periodic across the plurality of levels. The gray value engine is to substitute gray values recursively for at least a portion of the halftoning.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: August 24, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Robert Ulichney, Matthew D. Gaubatz, Stephen Pollard
  • Patent number: 11090951
    Abstract: A liquid discharge apparatus includes a liquid discharge head, a stimulation imparting unit, and a control unit. The liquid discharge head discharges stimulation hardening resin. The stimulation imparting unit imparts hardening stimulation to the discharged stimulation hardening resin. The control unit: controls the liquid discharge head based on lamination print data; forms a plurality of print layers each having a contour part; and changes a distance from the contour part in each of the print layers, based on data representing a correction amount with respect to a distance from the contour part in each of the print layers and a number of the print layers.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: August 17, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventor: Shinichi Hatanaka
  • Patent number: 11048745
    Abstract: A method, computer system, and computer program product for determining qualities of user favorable photographs are provided. The embodiment may include receiving a plurality of photographs from an electronic device. The embodiment may also include parsing each photograph. The embodiment may further include calculating a favorability value of each photograph. The embodiment may also include determining whether the favorability value of each photograph exceeds a favorability threshold value. The embodiment may further include organizing the received photographs into one or more clusters based on features of each photograph. The embodiment may also include generating a classification model for each cluster.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: June 29, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Adam T. Clark, Jeffrey K. Huebert, Aspen Payton, John Petri
  • Patent number: 11017498
    Abstract: A plurality of electronic documents comprising one or more document pages are received. First position markers, second position markers and page identifiers are inserted to the pages. The plurality of electronic documents are printed, thereby generating a printed corpus comprising a plurality of printed documents. The plurality of printed documents are scanned, thereby generating a scanned corpus comprising a plurality of scanned images. Scanning frame positions of the first and the second position markers are detected and the detected scanning frame positions and the page positions are used to define affine transformations between the plurality of scanned images and the corresponding document pages. The affine transformations are applied to the plurality of scanned images to align the plurality of scanned images with the corresponding document pages of the plurality of electronic documents.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: May 25, 2021
    Assignee: International Business Machines Corporation
    Inventors: Peter Willem Jan Staar, Michele Dolfi, Christoph Auer, Leonidas Georgopoulos, Konstantinos Bekas
  • Patent number: 10962916
    Abstract: An image forming apparatus includes a fixing device, an image reading unit, and a control unit. The fixing device includes a heating elements arranged in a main scanning direction, a band-shaped thin film which slides on the surface of the heating element while in contact with the heating element, and a rotatable body configured to press against a surface of the thin film to cause the thin film to rotate. The fixing device heats the heating elements when an inspection sheet is passed through the fixing device, the inspection sheet having plural images formed by using a decolorable developer, each of the images having an image density that differs in a sub-scanning direction of the image forming apparatus. The image reading unit reads an image of the heated inspection sheet and the control unit determines an operative state of each heating element based on the read image.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: March 30, 2021
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Yayoi Doi
  • Patent number: 10949720
    Abstract: An image processing apparatus that converts image data of a first resolution into image data of a second resolution lower than the first resolution. The image processing apparatus determines a small dot that is included in the image data of the first resolution and matches a first small dot pattern and performs conversion from the first resolution to the second resolution by switching a method of generating resolution-converted image data based on a result of the determination.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: March 16, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yukihiro Shindo
  • Patent number: 10939083
    Abstract: An electronic apparatus is disclosed. The electronic apparatus includes a communicator, a camera, a memory storing a reference image including a plurality of gradation regions that have different gradation values, and a processor to photograph the display device that outputs the reference image and a background of the display device, through the camera, obtain correction data for correcting a gradation value of the photographed image based on a plurality of gradation regions included in the photographed image and a plurality of gradation regions included in the stored reference image, correct a background image corresponding to the background from the photographed image based on the obtained correction data, and control the communicator to output the corrected background image on the display device.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: March 2, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Bongjoe Kim, Jongho Kim, Gimun Eom
  • Patent number: 10904504
    Abstract: An electronic apparatus is disclosed. The electronic apparatus includes a communicator, a camera, a memory storing a reference image including a plurality of gradation regions that have different gradation values, and a processor to photograph the display device that outputs the reference image and a background of the display device, through the camera, obtain correction data for correcting a gradation value of the photographed image based on a plurality of gradation regions included in the photographed image and a plurality of gradation regions included in the stored reference image, correct a background image corresponding to the background from the photographed image based on the obtained correction data, and control the communicator to output the corrected background image on the display device.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: January 26, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Bongjoe Kim, Jongho Kim, Gimun Eom
  • Patent number: 10857736
    Abstract: Methods and apparatus relating to substructures for three-dimensional objects are described. In an example, a processing apparatus includes: an interface to receive data representing a three-dimensional model object, the data including object model data and object property data; a mapping module to map received data to a print material coverage representation; a halftone module to provide halftone threshold data; and a substructure module to define a substructure for a three-dimensional object to be generated, the substructure specifying in at least a region thereof a consistent lattice structure and a variable material distribution. The apparatus is to apply a substructure and a halftoning to the print material coverage representation to generate control data for the production of a three-dimensional object having the substructure.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: December 8, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Peter Morovic, Jan Morovic, Alejandro Manuel De Pena, Juan Manuel Garcia Reyero Vinas
  • Patent number: 10775727
    Abstract: An image forming apparatus includes a storage unit and a charging amount acquisition unit. The charging amount acquisition unit performs a charging amount acquisition operation for forming a measurement toner image on the image carrier while changing the frequency of the alternating current voltage of the development bias with a potential difference in a direct current voltage between the developing roller and the image carrier being kept constant, acquiring a tilt of a measurement straight line representing a relationship between the change amount of the frequency and a density change amount of the measurement toner image, and acquiring the charging amount of the toner based on the acquired tilt of the measurement straight line and the reference information in the storage unit.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: September 15, 2020
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Akifumi Yamaguchi, Koji Suenami, Yasushi Imanishi, Tamotsu Shimizu
  • Patent number: 10708466
    Abstract: An image processing apparatus according to an embodiment of the present invention includes: a first generation unit that generates a low-frequency image by extracting a low-frequency component from an input image; a second generation unit that generates a high-frequency image by extracting a high-frequency component from the input image; a screen processing unit that generates an AM screen image by performing AM screen processing on the low-frequency image; an addition processing unit that generates an added image by adding the high-frequency image to the AM screen image; and a correction unit that corrects the added image.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: July 7, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Ryosuke Otani
  • Patent number: 10596808
    Abstract: A method for modifying color density values in a dot-based printing system uses a control unit. The control unit implements the modification of the color density values after a raster image has been created and modifies the number and/or size of print dots to be applied to a printing substrate in order to attain pre-defined color density target values.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: March 24, 2020
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Ilias Trachanas, Gerd Junghans
  • Patent number: 10528033
    Abstract: Certain examples described herein relate to structure forming for the production of a three-dimensional object. In these examples, different structure forming components or functions are applied to volumes of a three-dimensional object. These structure forming components or functions are arranged to differentially generate a halftone output. The halftone output is generated by processing a material volume coverage representation for the three-dimensional object. The halftone output is used to provide control data for instructing production of a three-dimensional object.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: January 7, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jan Morovic, Peter Morovic, Juan Manuel Garcia-Reyero Vinas
  • Patent number: 10528296
    Abstract: A system includes a memory to store ink-channel data that describe print resources for an ink-channel printing pipeline and Neugebauer Primary area coverage (NPac) data of an alternative printing pipeline. An NPac property stored in the memory describes a dimensional relationship between the NPac data of the alternative printing pipeline and the ink-channel data for the ink-channel printing pipeline. The system includes a processor to execute instructions stored in the memory. The instructions generate a mapping file based on the NPac property to map from an ink-channel space described by the ink-channel data to an NPac space described by the NPac data.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: January 7, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jan Morovic, Peter Morovic, Jay S Gondek
  • Patent number: 10454065
    Abstract: A display screen includes an OLED device encapsulating structure that encapsulates an OLED. The OLED device encapsulating structure includes a substrate, a barrier layer formed on the substrate, a surface active layer disposed on the barrier layer, and a buffer layer stacked on the surface active layer. An orthogonal projection of the buffer layer on the barrier layer is coincident with that of the surface active layer on the barrier layer. A composite layer may be further stacked on the buffer.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: October 22, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Hui Huang
  • Patent number: 10387759
    Abstract: An image processing apparatus decides first growth points indicating positions at which dots for generating a screen having a low ruling are generated based on a predetermined screen ruling and screen angle, and second growth points that indicate positions at which dots for increasing the screen ruling of a screen represented by the first growth points are generated. The apparatus generates a screen for growing, in accordance with increase in pixel values of an input image, dots generated centered on the first growth points, and switching, when the pixel values exceed a threshold value, growth points from the first growth points to the second growth points, and growing, in accordance with increase in the pixel values, dots generated centered on the second growth points, and uses the generated screen for screen processing on image data to be printed.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: August 20, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Taiki Tezuka
  • Patent number: 10362194
    Abstract: An example system in accordance with an aspect of the present disclosure includes a halftone engine and a gray value engine. The halftone engine is to apply halftoning to an image recursively across a plurality of levels of image scales and spatial resolutions, to generate a pattern that is at least quasi-periodic across the plurality of levels. The gray value engine is to substitute gray values recursively for at least a portion of the halftoning.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: July 23, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Robert Ulichney, Matthew D Gaubatz, Stephen Pollard
  • Patent number: 10343440
    Abstract: A method prints on a printing material using inks and dampening fluids. An ink printing machine uses ink print heads to apply an image to a front side of the printing material and a dampening fluid print head to apply a dampening fluid image, thus reducing or avoiding water-related cockling of the printing material. The method includes: providing the image to be printed, calculating n different color separation matrices, calculating n ink amount matrices An from the color separation matrices, and calculating a total ink amount matrix A. For every element of the total ink amount matrix: calculating a matrix B as B=G*A, with a weighting matrix G and determining the maximum of the matrix B, calculating a dampening fluid matrix C, calculating the dampening fluid image from the dampening fluid image matrix C, and printing the ink image and the dampening fluid image.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: July 9, 2019
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Peter Hachmann, Klaus Olawsky
  • Patent number: 10326911
    Abstract: A system, method, and non-transitory computer readable medium are disclosed for mitigating dot placement errors for a given print job. The method includes processing tone values on a per pixel basis to determine whether to implement plane dependence. Plane independence is implemented if the tone value exceeds a predetermined threshold. The method may be performed on a pixel by pixel basis and/or a print object or region basis. Determining whether to implement plane dependence may involve de-asserting or partially de-asserting a plane dependence component of an executed half-toning instruction between sequentially processed color planes of a printing system.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: June 18, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jason Quintana, Tsuyoshi Yamashita, Matthew A Shepherd
  • Patent number: 10209658
    Abstract: An image forming system includes: a density detecting section that detects the density of a toner image formed on an image bearing member by an image forming section, the density being detected as an output image density; a hardware processor which performs; tone correction in accordance with input-output characteristics data indicating the relationship between an input image density and an output image density, the input image density being the image density of a tone component included in the input image data, the output image density being detected by the density detecting section in accordance with the tone component; determining whether there is a missing tone component in the input image data; and complementing the input-output characteristics data corresponding to a missing tone component, when it is determined that there is the missing tone component.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: February 19, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Katsuya Toyofuku, Daiki Yamanaka, Toru Yamaguchi
  • Patent number: 10192151
    Abstract: A print control apparatus includes: a job reception unit that receives a print job in which a plurality of different print conditions are capable of being set; a setting reception unit that receives setting of a single print condition among the plurality of print conditions; a print execution unit that prints an image based on the print job as a result of executing the print job in accordance with a single print condition. The print execution unit, when the print condition set in the setting reception unit is changed during execution of the print job, prints an image based on the print job executed under the print condition subsequent to the change immediately after an image based on the print job executed under the print condition prior to the change.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: January 29, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Satoru Nishio
  • Patent number: 10122891
    Abstract: There is provided a recording data generating apparatus that generates recording data used for reproducing a gloss of an image by recording inclined structures on a recording medium, the recording data generating apparatus including: a conversion unit that converts gloss data with a first resolution having an inclined structure as one pixel into inclined structure data representing a combination ratio of a predetermined number of kinds of inclined structures; a halftone processing unit that generates N-value quantization data representing one of the predetermined number of kinds of inclined structures by performing a halftone process of the inclined structure data of each pixel with the first resolution, N being equal to the predetermined number of kinds; and a recording data generating unit that generates recording data used for recording one of the predetermined number of kinds of inclined structures for each pixel with the first resolution based on the quantization data.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: November 6, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takuya Shimada
  • Patent number: 10027852
    Abstract: An image processing device includes a first control circuit to transfer image data of a plurality of color components on a line basis in a main scanning direction, and a second control circuit connected to the first control circuit to process the image data of each one of the plurality of color components transferred from the first control circuit and output the processed image data on a line basis on an object. The first control circuit includes a plurality of registers provided for each one of the plurality of color components, a calculation circuit connected to the plurality of registers, a plurality of addition circuits provided for each one of the plurality of color components and connected to a corresponding one of the plurality of registers and the calculation circuit, and a transfer control circuit connected to the calculation circuit and the plurality of addition circuits.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: July 17, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventor: Yoshitaka Saga
  • Patent number: 10027847
    Abstract: An example embodiment may involve causing a page of a document to be printed on a printing device, wherein the printing device is in an AM halftoning mode and prints the page using an AM halftone; displaying, on the display unit, a graphical user interface, wherein the graphical user interface includes a selectable option to switch the printing device from the AM halftoning mode to an FM halftoning mode; receiving an indication that the selectable option has been selected; possibly in response to receiving the indication that the selectable option has been selected, causing the printing device to switch from the AM halftoning mode to the FM halftoning mode; and causing the page of the document to be printed again on the printing device, wherein the printing device is in the FM halftoning mode and prints the page using an FM halftone.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: July 17, 2018
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventors: Edwin P. Lockwood, Michael M. Chang, Dongpei Su, Kenneth A. Schmidt
  • Patent number: 9964908
    Abstract: An image forming apparatus includes a printer engine having an exposure unit configured to form an electrostatic latent image based on data of an input image and a development unit configured to develop the formed electrostatic latent image, a specification unit configured to specify a pixel in an edge portion in which an edge-effect and a sweeping-effect are expected to occur, from among a plurality of pixels constituting the input image, and a correction unit configured to correct a toner amount with respect to the pixel in the edge portion in which the edge-effect and the sweeping-effect are expected to occur, which is specified by the specification unit, in order to suppress excessive consumption of toner caused by an effect expected to occur.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: May 8, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Yoshihisa Nomura
  • Patent number: 9883078
    Abstract: A graphics processing method receives a plurality of contiguous pixels, as a single input, including at least a first pixel span associated with a first content type and a second pixel span associated with a second content type. At least one dithering matrix is associated with each of the pixel spans based on the corresponding content type, so that the first and the second pixel spans are associated with different dithering matrices. The single input of the received plurality of pixels is then concurrently processed using an SIMD (Single Instruction Multiple Data) type processor by referring to different dithering matrices depending on the content type of the corresponding pixel spans.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: January 30, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Sheng Wu
  • Patent number: 9871952
    Abstract: An image formation apparatus includes: a storage which stores a test pattern; and image formation sections which form an image of the test pattern on a medium. The image of the test pattern includes divided images formed by being divided into regions in a main scanning direction and a sub-scanning direction. Each of the divided images is formed by at least one preset image formation section out of the image formation sections. A total width, in each of the main scanning direction and the sub-scanning direction, of the divided images formed by each of the image formation sections is larger than the entirety of a corresponding width of the image of the test pattern.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: January 16, 2018
    Assignee: Oki Data Corporation
    Inventors: Takuya Goto, Fumitaka Ozeki
  • Patent number: 9661154
    Abstract: A printing system is disclosed. The printing system includes a printer controller to receive optical density (OD) measurement data corresponding to application of a halftone pattern using ink on a medium in a printing system and calculate a predicted OD versus normalized ink coverage relationship for the printing system based on the received OD measurement data.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: May 23, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Mikel John Stanich, Nikita Gurudath, Larry M. Ernst
  • Patent number: 9661186
    Abstract: Gloss effect image patterns are created by creating a solid color background and overprinting the solid color background with the glossmark. In creating the glossmark, a background base of an electronic image region is painted with a solid color corresponding to a color of a marking material; using a first electronic pattern ink, a background of the electronic image region is painted without knocking out the solid color of the background base of the electronic image region; and using a second electronic pattern ink, a foreground in the electronic image region is painted without knocking out the solid color of the background base of the electronic image region such that a pattern in the rendered image area is only visible when a predetermined angle between an observer's viewing angle and an angle of illuminating the rendered recording medium by an illumination source is realized.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: May 23, 2017
    Assignee: Xerox Corporation
    Inventor: Edward N. Chapman
  • Patent number: 9639790
    Abstract: An image processing apparatus includes a dither processing unit configured to perform dither processing on image data having a first resolution M by using a dither threshold value matrix and a resolution conversion unit configured to perform resolution conversion to convert the image data that is generated by the dither processing unit and which has the first resolution M into image data having a second resolution N lower than the first resolution M by using a filter, and the pixel of a growth center of the dither threshold value matrix and the center pixel of the processing using the filter coincide with each other.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: May 2, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Noboru Abe
  • Patent number: 9635217
    Abstract: A color converter includes a printing color value determining unit and a determination color value calculating unit. The determination color value calculating unit calculates a determination color value in such a way that a positional relationship of a input color value relative to a input peak value, a white color value showing a color value of white, and a black color value showing a color value of black is equal to a positional relationship of the determination color value relative to the determination peak value, the white color value, and the black color value. The printing color value determining unit determines, as a printing color value, the representative color value closest to the determination color value calculated by the determination color value calculating unit in the Voronoi diagram.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: April 25, 2017
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventor: Etsuko Manda
  • Patent number: 9457561
    Abstract: An image forming apparatus includes an image forming device, a threshold comparator, a first image compensator, and a second image compensator. The first compensator executes a processing of, for at least a pixel value less than a threshold, setting a value of stopping discharge of a droplet from a defective nozzle in converting multi-valued data of an input image into n-value data, and spreading a quantization error due to setting the value, to neighboring pixels of a pixel corresponding to a defective nozzle. The second compensator executes a processing of replacing a smaller dot among dots around the defective nozzle with a larger dot by pattern matching using a mask pattern in accordance with a dot size and placement around the defective nozzle, on condition that as a result of comparison of the comparator, the pixel value corresponding to the defective nozzle is equal to or more than the threshold.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: October 4, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventor: Shigetoshi Hosaka
  • Patent number: 9451181
    Abstract: A method includes reading a composite video descriptor data structure and a plurality of window descriptor data structures. The composite video descriptor data structure defines a width and height of a composite video frame and each window descriptor data structure defines the starting X and Y coordinate, width and height of each constituent video window to be rendered in the composite video frame. The method further includes determining top and bottom Y coordinates for each constituent video window, as well as determining left and right X coordinates for each constituent video window. The method also includes dividing each constituent video window using the top and bottom Y coordinates to obtain Y-divided sub-windows, dividing each Y-divided sub-window using left and right X coordinates to obtain X and Y divided sub-windows, and storing X, Y coordinates of opposing corners of each X and Y divided sub-window in the storage device.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: September 20, 2016
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Sujith Shivalingappa, Sivaraj Rajamonickam
  • Patent number: 9417828
    Abstract: An image forming apparatus capable of scanning document includes a scanner to generate document image by scanning document, and a display to display an alarm screen to alert a size change of a recording medium to a user when print magnification ratio of document image is changed and then a print operation is instructed without changing a size of recording medium to be printed with document image.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: August 16, 2016
    Assignee: Ricoh Company, Ltd.
    Inventor: Kaori Sakata
  • Patent number: 9417554
    Abstract: Provided is an image forming apparatus that performs smoothing in conversion of pseudo high resolution without using a large translation table. A smoothing process part performs smoothing based on a density of a peripheral pixel that adjoins a target pixel on edge. When a density change between both sides of the target pixel in a sub scanning direction is larger than a density change between both sides of the target pixel in a main scanning direction, a density of a plurality of pixels after conversion of pseudo high resolution of a sub scanning direction corresponding to the target pixel is mutually changed. Also, when a density change between both sides of target pixel in the sub scanning direction is not larger than a density change between both sides of the target pixel in the main scanning direction, the density set to the same.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: August 16, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Okito Ogasahara
  • Patent number: 9360791
    Abstract: An image forming apparatus outputs a clock signal used for outputting image data, outputs first image data in accordance with the outputted clock signal, outputs second image data in accordance with a clock signal for which the output clock signal is caused to change by a spread spectrum clock oscillator circuit, calculates a logical OR of the two outputs, and outputs image data, which is the calculation result, to an image forming unit. A laser device provided in the image forming unit is controlled in accordance with the outputted image data.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: June 7, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Naoki Oyama
  • Patent number: 9338324
    Abstract: Embodiments of a computer-implemented method for thin-line enhancement in electronic images are disclosed. The methods include receiving a halftone image comprising multiple pixels, and associating a predefined kernel with at least a portion of the halftone image. The kernel includes multiple check cells and a processing cell, each capable of being toggled between an active state and an inactive state; detecting a state of each of the pixels in the neighborhood of an inactive pixel associated with the processing cell based on one or more predetermined rules being applied to the kernel, wherein the inactive pixel is in communication with a contiguous set of active pixels; and selectively activating the inactive pixel by activating the processing cell based on the predetermined rules, provided the inactive pixel upon being activated is separated from a neighboring active pixel.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: May 10, 2016
    Assignee: XEROX CORPORATION
    Inventor: Sudhagar Subbaian
  • Patent number: 9286554
    Abstract: A method of forming halftone printed images in a three-dimensional printer includes generating halftone coverage data for a region of an image receiving surface including at least one color marking agent and a color neutral marking agent. The method further includes generating halftone image data with reference to the halftone coverage data and operating a plurality of ejectors to form a printed halftone image having a uniform thickness. A first pixel location receives a first color marking agent and at least a second pixel location receives the color neutral marking agent.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: March 15, 2016
    Assignee: Xerox Corporation
    Inventors: Martin S. Maltz, Roger L. Triplett
  • Patent number: 9227395
    Abstract: An image processing apparatus includes an acquiring unit, a first calculating unit, a setting unit, a second calculating unit, a first generating unit, and a second generating unit. The acquiring unit acquires image data of an image to be formed by a recording unit using an inkjet system. The first calculating unit calculates a thickness of ejected ink for each pixel based on the image data. The setting unit sets a target thickness of the image. The second calculating unit calculates a difference between the target thickness and the thickness of ink for each pixel. The first generating unit generates complementary data, in which an ejection amount of an additional droplet to realize a thickness corresponding to the difference is defined for each pixel. The second generating unit generates print data containing the image data and the complementary data.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: January 5, 2016
    Assignee: Ricoh Company, Limited
    Inventor: Shinichi Hatanaka
  • Patent number: 9113104
    Abstract: Disclosed is an image processing apparatus to perform screen processing for image data, and to form an image based thereon, comprising a screen processing unit to perform the screen processing by using a subcell corresponding to a plurality of pixels, and in which a first and a second threshold values are determined according to each position of the pixels, wherein the screen processing unit obtains threshold values, to output either an invariable value Dmin, an invariable value DMax, or an interpolated value of the two invariable values, and wherein the subcell is determined so that the first threshold value of a given pixel is larger than the first threshold value of a prior pixel and is smaller than the second threshold value thereof, the threshold values of the prior pixel being determined so that a dot is formed in the prior pixel earlier than in the given pixel.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: August 18, 2015
    Assignee: KONICA MINOLTA, INC.
    Inventor: Masanori Yoshizawa
  • Patent number: 9092719
    Abstract: A color image processing apparatus includes an image forming unit configured to form a color image using recording materials of plural colors, an image processing unit configured to implement plural image processing methods that achieve plural types of pseudo-halftone representations, a color measurement unit configured to perform color measurement of the color image formed by the image forming unit, and a control unit configured to control execution of multi-color calibration in which the color measurement unit performs color measurement of a pattern image including plural multi-color patch images formed using recording materials of plural colors by using a smaller number of image processing methods than plural image processing methods used in single-color calibration for correcting reproduction characteristics of single-color images formed by the image forming unit and in which reproduction characteristics of a multi-color image formed by the image forming unit are corrected using a result of the color meas
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: July 28, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Asako Hashizume
  • Patent number: 9087291
    Abstract: An image processing apparatus includes a generation unit; wherein a first dither pattern and a second dither pattern have same threshold values that are set for same pixels in a first gradation range, and have different threshold values that are set for same pixels in a second gradation range that exceeds the first gradation range; and the generation unit sets a first threshold value for forming dots of the first dither pattern, and generates a first binary data according to whether or not a threshold value corresponding to a target pixel of the first dither pattern is included in the first threshold value, and sets a second threshold value for forming dots of the second dither pattern, and generates a second binary data according to whether or not a threshold value corresponding to a target pixel of the second dither pattern is included in the second threshold value.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: July 21, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shinjiro Hori, Nobutaka Miyake, Akitoshi Yamada, Fumitaka Goto, Ryosuke Iguchi, Hidetsugu Kagawa, Tomokazu Ishikawa, Kouta Murasawa, Hiromitsu Akiba, Junichi Nakagawa, Senichi Saito