Tone Marking Patents (Class 347/240)
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Patent number: 12117732Abstract: The present disclosure provides methods and systems for correcting the shooting of images from a spatial light modulator (SLM) to a substrate, when cross-scan vibrations, including sub-pixel cross-scan vibrations, are present. The methods and systems include shifting a mask pattern on an SLM rotated relative to the in-scan direction of travel on a substrate, shifting along an axis of the SLM to correct for cross-scan vibrations, and either delaying, or accelerating, the shooting of the mask pattern onto the substrate.Type: GrantFiled: April 29, 2020Date of Patent: October 15, 2024Assignee: Applied Materials, Inc.Inventors: Thomas L. Laidig, Christopher Dennis Bencher
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Patent number: 12106479Abstract: An ultrasound image recognition system and a data output module are provided. The ultrasound image recognition system includes an image analyzing device, a data processing device, and a data output module. The image analyzing device is configured to receive an image having a predetermined format. The image analyzing device generates a plurality of physiological image parameters. The data processing device is connected to the data processing device. The image analyzing device provides the plurality of physiological image parameters and the image having a predetermined format to the data processing device. The data processing device provides a comparison result of physiological parameter based on the plurality of physiological image parameters and a plurality of predetermined physiological image parameters. The data processing device converts the image having a predetermined format into an image having a first format.Type: GrantFiled: March 22, 2022Date of Patent: October 1, 2024Assignee: T-JET Meds CORPORATION LIMITEDInventors: Ming-Chin Lin, Lung Chan
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Patent number: 12100435Abstract: Data reading and writing apparatuses and data reading and writing methods are provided. In a data reading apparatus or a data writing apparatus, an optical head array including a plurality of laser heads is disposed, so that a quantity of laser heads for reading/writing data is increased. In addition, each laser head is improved, and a plurality of focal points are disposed in the laser head, so that in a data reading/writing process, parallel reading/writing of a plurality of pieces of data may be implemented by using the plurality of laser heads and the plurality of focal points in the laser head, and a data read/write throughput of an optical storage medium may be improved.Type: GrantFiled: November 28, 2022Date of Patent: September 24, 2024Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Hongwei Tang, Jun Xu
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Patent number: 12099760Abstract: The present disclosure provides an image-forming device, and a method and a controller for controlling the image-forming device. The method is executed by the controller of the image-forming device. The method includes when a first sensor disposed in the image-forming device is abnormal, determining, by the controller, an environmental parameter in real-time through one or more target apparatuses disposed in the image-forming device, where the environmental parameter includes at least one of temperature and humidity; and the first sensor is configured to detect the environmental parameter inside the image-forming device; and according to the environmental parameter in real-time, adjusting, by the controller, a control parameter when the image-forming device forms images.Type: GrantFiled: July 11, 2023Date of Patent: September 24, 2024Assignee: ZHUHAI PANTUM ELECTRONICS CO., LTD.Inventor: Di Wu
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Patent number: 11825038Abstract: A reading apparatus includes a reading device and processing circuitry. The reading device reads a recording medium. The processing circuitry outputs maintenance information based on read information read by the reading device.Type: GrantFiled: March 22, 2022Date of Patent: November 21, 2023Assignee: Ricoh Company, Ltd.Inventors: Tohru Matsumoto, Kohta Aoyagi, Tatsuya Ishii, Kimiharu Yamazaki, Satoshi Nakayama, Ryosuke Ebinuma, Ryoh Ishitsuka
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Patent number: 11799460Abstract: A clock generator circuit including an integer divider, having a first input receiving a reference clock and configured to generate an intermediate clock at a frequency divided down from a frequency of the reference clock by an integer value, a digital delay stage configured to generate a delayed intermediate clock delayed from the intermediate clock by a number of fractional cycles of the reference clock selected responsive to a fractional cycle value, and an analog delay stage configured to generate an output clock delayed from the delayed intermediate clock by a delay value selected responsive to a fine adjustment value. The clock generator circuit further includes math engine circuitry configured to compute a phase adjustment code responsive to the phase adjustment word, the phase adjustment code comprising the integer value, the fractional cycle value, and the fine adjustment value.Type: GrantFiled: June 29, 2022Date of Patent: October 24, 2023Assignee: Texas Instruments IncorporatedInventors: Madusudanan Srinivasan Gopalan, Christopher Schell, Benyong Zhang
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Patent number: 11740277Abstract: To test a first LED, a second LED, and a third LED in a light-emitting unit, a method is disclosed herein comprising the following steps: setting the first and second LEDs in respective driven states to generate associated light; providing the third LED to receive the light associated with the first and second LEDs, thereby generating a first photocurrent and a second photocurrent; providing the first LED to receive the light associated with the second LED, thereby generating a third photocurrent; and calculating a decay factor of each of the LEDs based on the first, second, and third photocurrents.Type: GrantFiled: October 9, 2019Date of Patent: August 29, 2023Assignee: Dynascan Technology Corp.Inventors: Tsun-I Wang, Ching-Chun Wu, Chia-Liang Yang
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Patent number: 11613843Abstract: A system automatically generates apparel collection imagery from user-provided imagery. The user-provided imagery includes images of people wearing one or more garments. The system uses segmenting analysis to analyze the user-provided image to identify locations of the garment. From the locations of the garments, the system can determine which garments from an apparel collection can be used to replace those in the user-provided imagery. The system uses pose estimation on the user-provided imagery and modifies a preview image of a replacement garment from the collection. This modified replacement garment image is used to replace the garment in the user-provided imagery.Type: GrantFiled: July 13, 2021Date of Patent: March 28, 2023Assignee: Levi Strauss & Co.Inventors: Jennifer Schultz, Debdulal Mahanty, Benjamin Bell, James Barton Sights, Christopher Schultz
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Patent number: 11600238Abstract: A display device includes a light source, a light modulator, and a control apparatus, the light modulator includes a digital micromirror array including micromirrors and is arranged on a light path of light emitted by the light source and configured to modulate the light emitted by the light source based on a target image and luminance of the light source to obtain a grayscale image. The control apparatus is configured to control a driving current of the light source to adjust the luminance of the light source in different periods within a frame image, and to cause a driving current overdrive pulse of the light source during at least one of the periods, so that a display bit depth of the grayscale image increases from n to n+i and the periods correspond to bitplanes of the grayscale image in one-to-one correspondence, i?1 and i is an integer.Type: GrantFiled: May 18, 2020Date of Patent: March 7, 2023Assignee: APPOTRONICS CORPORATION LIMITEDInventors: Chen Chen, Fei Hu, Xin Yu, Zuqiang Guo, Yi Li
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Patent number: 11363171Abstract: A color table is modulated. The color table includes a plurality of nodes, and each node corresponds with a color input in the first color space and provides a print output in a second color space. The set of the plurality of nodes are arranged in a vector of a first color perception parameter. The vector can be arranged according to an order of increasing second color perception parameter in the first color space to an end node of the set of the plurality of nodes. A node in the set of the plurality of nodes that provides a peak amount of the second color perception parameter on the medium is determined. The print output for the end node is replaced with a print output corresponding with the node that provides the peak amount of the second color perception parameter on the medium.Type: GrantFiled: May 15, 2019Date of Patent: June 14, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventor: Miguel Angel Lopez Alvarez
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Patent number: 11310396Abstract: A color management system includes an external apparatus and a printing apparatus. The external apparatus includes a first controller including a first processor and a first memory to send a color verification setting, including at least sheet information, that is set for a color verification operation, and a color verification execution condition that is set for the color verification operation to the printing apparatus. The printing apparatus includes a second controller including a second processor and a second memory to receive the color verification setting and the color verification execution condition from the external apparatus, print a chart image on a sheet corresponding to the sheet information included in the color verification setting in accordance with having satisfied the color verification execution condition, measure the chart image printed on the sheet, and transmit data obtained by a measurement of the chart image to the external apparatus.Type: GrantFiled: February 15, 2019Date of Patent: April 19, 2022Assignee: CANON KABUSHIKI KAISHAInventor: Yuuki Maeda
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Patent number: 11169463Abstract: In an example, a method includes determining an indication of pixel separation for an image region to be printed to a substrate. A power level of a laser light source to address a pixel on a region of a photoconductive surface corresponding to the image region may be adjusted based on the indication of pixel separation to compensate for print spot size variation associated with pixel separation.Type: GrantFiled: August 25, 2017Date of Patent: November 9, 2021Assignee: HP Indigo B.V.Inventors: Oron Ambar, Guy Nesher, Haim Vladomirski, Tal Frank, Craig Breen, Yuval Yunger
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Patent number: 11134165Abstract: An image processing apparatus that executes jobs in parallel using a small number of resources. A controller includes an image processor that applies an image process to image data. A scanner controller includes storage for storing image data generated by scanning a document with a scanner and transfers the image data stored to the controller through a data bus. A processor executes instructions to set a frequency of an image transfer clock to a first frequency when a first job including a process that transfers image data generated by scanning documents to the controller is executed alone, and set the frequency of the image transfer clock to a second frequency lower than the first frequency when the first job is executed in parallel to a second job including an image process. The frequency of the image transfer clock is maintained at the second frequency until finishing the first job.Type: GrantFiled: September 10, 2020Date of Patent: September 28, 2021Assignee: CANON KABUSHIKI KAISHAInventor: Kazuki Sato
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Patent number: 11115552Abstract: A multifunction peripheral capable of preventing discontinuation of a simultaneous double-sided reading process, caused by congestion of an image bus. An image transfer clock is controlled for transferring image data of a document sheet from a reading unit for reading both sides of the document sheet, to an image processing unit for performing image processing on data acquired via an image bus. When transfer of image data of one side of the document sheet is singly executed, a frequency of the image transfer clock is set to a predetermined frequency, and when transfer of image data of the other side of the document sheet, which is executed in succession to the transfer of image data of the one side, is to be executed in parallel with the image processing, the frequency is switched from the predetermined frequency to a lower frequency than the same.Type: GrantFiled: July 31, 2020Date of Patent: September 7, 2021Assignee: CANON KABUSHIKI KAISHAInventor: Kazuki Sato
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Patent number: 10795265Abstract: There is provided a substrate processing apparatus including: a light radiator configured to radiate a light for processing into an irradiation area which is smaller than a processing target area of a surface of a substrate; a driver configured to move the irradiation area in two directions that cross each other in a plane along the surface of the substrate; and a controller configured to control the driver to move an irradiation position in two directions according to a movement pattern which has been set to radiate the light to an entire area of the processing target area.Type: GrantFiled: July 24, 2019Date of Patent: October 6, 2020Assignee: TOKYO ELECTRON LIMITEDInventors: Norihisa Koga, Yoshitaka Konishi, Naruaki Iida, Yuzo Ohishi, Kazuhiro Takeshita
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Patent number: 10589507Abstract: An apparatus and method for making a three-dimensional object from a solidifiable material using a linear solidification device is shown and described. Either a build platform or a solidification substrate has a curved surface, and each point on the curved surface traverses a trochoidal path during an object solidification operation. The curved surface allows the separation forces between the solidification substrate and the most recently solidified layer of material to be concentrated along a line instead of along a planar section which reduces the overall separation force and the likelihood of damaging a part.Type: GrantFiled: October 8, 2014Date of Patent: March 17, 2020Assignee: Global Filtration SystemsInventors: Ali El-Siblani, Alexandr Shkolnik, Chi Zhou
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Patent number: 10126696Abstract: A method is described for calibrating a linear printhead including an array of light sources. A test target is printed by activating the light sources in the printhead in accordance with digital image data for the test target, wherein a current value for each light source is controlled responsive to an initial set of current control parameters. A digital image capture system is used to capture an image of the printed test target, and the captured digital image is analyzed to determine an estimated exposure gain error for each light source. An updated set of current control parameters is then determined which is adapted to compensate for the estimated exposure gain errors.Type: GrantFiled: June 28, 2017Date of Patent: November 13, 2018Assignee: EASTMAN KODAK COMPANYInventors: Chung-Hui Kuo, Stacy M. Munechika, Frederick Edward Altrieth, III
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Patent number: 9375962Abstract: A method of analyzing a printed test pattern includes printing first and second rows of marks, each row including at least two pluralities of marks. A gap between two pluralities of marks in the first row is located in a first position in a cross-process direction that is different than a second position of another gap between pluralities of marks in the second row. A controller identifies the first row of marks with reference to a predetermined set of image data corresponding to the first row of marks including the first plurality of marks, the second plurality of marks, and the gap in the first row.Type: GrantFiled: June 23, 2015Date of Patent: June 28, 2016Assignee: Xerox CorporationInventors: Patricia J. Donaldson, Michael B. Monahan, James P. Calamita
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Patent number: 9152095Abstract: A method for determining transfer bias settings in an electrophotographic printing system having a plurality of printing modules, each printing module including a respective transfer subsystem operated at an associated transfer bias setting. The method includes defining a plurality of test transfer bias sets, each test transfer bias set including a transfer bias setting for the transfer subsystem in each of the printing modules. For each of the defined test transfer bias sets, a plurality of process control patches are transferred onto a measurement surface, wherein the process control patches include a monochrome patch printed using a particular printing module and at least one multi-color patch. A monochrome transfer function and a multi-color transfer function are determined characterizing the amount of the transferred toner as a function of the transfer bias, and are used to determine a transfer bias setting for the particular printing module.Type: GrantFiled: June 27, 2014Date of Patent: October 6, 2015Assignee: EASTMAN KODAK COMPANYInventors: Mark Cameron Zaretsky, Rodney Ray Bucks, Kevin Edward Spaulding
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Patent number: 9132623Abstract: A multi-station flexographic printing system includes a first flexographic printing station that includes a first flexo master. The system includes one or more additional flexographic printing stations, wherein each of the one or more additional flexographic printing stations includes a flexo master. The first flexo master includes one or more alignment boxes in one or more unique positions. Each flexo master of the one or more additional flexographic printing stations includes an alignment box completion in a predetermined position. A method of marking a substrate for visual alignment includes printing one or more alignment boxes in one or more unique positions on a substrate. One or more alignment box completions are printed in one or more predetermined positions on the substrate. The one or more predetermined positions correspond to the one or more unique positions.Type: GrantFiled: March 27, 2013Date of Patent: September 15, 2015Assignee: UNIPIXEL DISPLAYS, INC.Inventors: Evan M. Goldberg, Christopher Derichs
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Patent number: 9030516Abstract: Compensation is performed for nonuniformity in a printer. The printer has a photoreceptor and a print head with a plurality of different light sources, each light source capable of producing a plurality of different levels of light. A plurality of stored gain control signals for each light source are related to the light output of that light source. Print job data includes screened pixel levels and a halftone screen specification. The stored gain control signals are adjusted based on the halftone screen specification. The screened pixel levels are modified using the adjusted gain control signals to provide engine pixel levels. Those levels are provided to corresponding light sources to expose the photoreceptor in respective pixel areas with light corresponding to the compensated pixel levels.Type: GrantFiled: June 22, 2011Date of Patent: May 12, 2015Assignee: Eastman Kodak CompanyInventors: Stacy M. Munechika, Chung-Hui Kuo, Hwai-Tzuu Tai, Stephen J. Famand
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Patent number: 9007414Abstract: Density unevenness is suppressed even in an image that is formed by a multiple exposures method in which the same region on a photoreceptor is exposed multiple times with different laser light sources (light emitting elements), by adjusting the amounts of light of the respective lasers based on a density difference among test images. An image is formed for each group of light emitting elements grouped together for multiple exposures by dividing, in the main scanning direction, the region of a test image formed on a recording medium. The images formed for the respective multiple-exposure light emitting element groups are compared to one another in density, to thereby adjust the amounts of light of the respective laser light sources (light emitting elements) and reduce fluctuations in image density.Type: GrantFiled: April 18, 2013Date of Patent: April 14, 2015Assignee: Canon Kabushiki KaishaInventor: Masayuki Hirano
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Patent number: 8953009Abstract: An image forming apparatus using the laser scan method or the LED method, which is capable of reducing a variation of spot diameter with a simple mechanism, and of forming a high-quality image by adjusting the density depending on the image resolution with a low cost. The image forming apparatus forms an image by developing an electrostatic latent image formed by irradiating a charged photoconductor with light emitted from a light source with developer. A detecting unit detects a distance between an attention pixel and an adjacent image that is adjacent to an image including the attention pixel across a white background. An adjustment unit adjusts a density of the attention pixel based on the distance measured with the detecting unit and a spot diameter of the light on a surface of the photoconductor.Type: GrantFiled: January 29, 2013Date of Patent: February 10, 2015Assignee: Canon Kabushiki KaishaInventor: Yasutomo Furuta
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Patent number: 8947485Abstract: A drawing control device includes: a fill-stroke generating unit that generates a fill stroke that includes a plurality of strokes that fill a drawing area; a shape-stroke generating unit that generates a shape stroke which is a stroke of a shape to be formed on the drawing area; a first detecting unit that detects an overlap portion where the fill stroke and the shape stroke overlap with each other; a modifying unit that removes the overlap portion from the fill stroke to modify the fill stroke to obtain a drawing stroke; a drawing-instruction generating unit that generates a drawing instruction for drawing each stroke in the drawing stroke; and a drawing control unit that controls a drawing device by using the drawing instruction to cause the drawing device to draw the drawing stroke on an object.Type: GrantFiled: October 26, 2010Date of Patent: February 3, 2015Assignee: Ricoh Company, LimitedInventor: Fumihiro Hasegawa
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Patent number: 8854408Abstract: An image forming apparatus includes; an exposure unit configured to perform, based on the image data, first exposure for a photosensitive member and second exposure for the photosensitive member exposed by the first exposure; a determination unit configured to determine a type of the image to be formed based on image data; and a control unit configured to control the exposure unit such that a difference in an exposure amount between the first exposure and the second exposure performed based on the image data when the type of the image is a character is larger than the difference in the exposure amount between the first exposure and the second exposure performed based on the image data when the type of the image is a picture.Type: GrantFiled: January 31, 2013Date of Patent: October 7, 2014Inventors: Nobuhiko Zaima, Tomohisa Itagaki, Takahiro Ishihara, Yasuhito Shirafuji
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Patent number: 8842145Abstract: A substrate marking apparatus for use in combination with a substrate comprising a multi-color change diacetylene compound is disclosed. The substrate marking apparatus comprises: at least two radiation sources operable to emit radiation of different wavelengths, optical transformation elements and a control system. The control system takes digital file information and converts this to a set of emission instructions for the radiation sources. The radiation sources are then applied to the substrate in sequence and intensity determined by the control system such that the substrate is activated to change from a colorless state to any one of a range of multiple permanent colors.Type: GrantFiled: January 25, 2011Date of Patent: September 23, 2014Assignee: DataLase LimitedInventors: John Cridland, Anthony Jarvis, Martin Walker, Chris Wyres
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Patent number: 8786655Abstract: A system for generating a differential gloss image includes a marking material having absorbing elements useful for absorbing electromagnetic radiation emitted by a laser glossing imager, and accommodating heating and resultant melting of the marking material for altering a surface of the marking material image. The absorbing element is a pigment or dye. The absorbing element is carbon black, or a pigment capable of absorbing IR light, while being transparent to visible light.Type: GrantFiled: September 26, 2012Date of Patent: July 22, 2014Assignee: Xerox CorporationInventors: Chu-heng Liu, Nancy Y. Jia, Jing Zhou
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Patent number: 8680489Abstract: An installation and method for etching at least one wafer coated with an etch-ready, blank photosensitive layer is disclosed. In accordance with an embodiment, the wafer has thickness irregularities, wherein the wafer is arranged to be able to be submitted to irradiation-beam scanning, a sheet transparent to the radiation to which the photosensitive layer is sensitive covers the wafer, and a probe beam intended to reflect on the upper portion of the sheet perpendicularly to the irradiation beam spot on the photosensitive layer is provided.Type: GrantFiled: September 28, 2012Date of Patent: March 25, 2014Assignee: Commissariat à L'Énergie Atomique et aux Énergies AlternativesInventors: Christophe Martinez, Pascal Boulitreau, Fabien Laulagnet
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Patent number: 8576267Abstract: An optical writing device stores pieces of dithering information indicating dithering patterns whose densities are different, each piece of dithering information including pieces of identification information associated with pixels of the corresponding dithering pattern, and stores pieces of pixel setting information in which pieces of colored/colorless information indicating each of the pixels is colored or colorless are associated with the pieces of identification information, the pieces of colored/colorless information being set based on a resolution of a light source for forming an electrostatic latent image. The optical writing device also includes a control unit configured to arrange the same dithering patterns in a way that the dithering patterns form a pattern with a given size, and cause the light source to emit light based on information generated by setting the pixels of each of the same dithering patterns to be colored or colorless in accordance with the pixel setting information.Type: GrantFiled: May 17, 2012Date of Patent: November 5, 2013Assignee: Ricoh Company, LimitedInventors: Motohiro Kawanabe, Tatsuya Miyadera, Masayuki Hayashi, Kunihiro Komai, Yasuo Yamaguchi, Yoshinori Shirasaki, Takeshi Shikama, Izumi Kinoshita, Susumu Miyazaki, Takuhei Yokoyama
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Patent number: 8559081Abstract: Disclosed is a method for processing raster image data and determining via a reference device (e.g., LUT), an amount of marking medium (toner, ink) to be used for printing a document. Then billing costs based on the amount of medium is determined. In particular, a calibration method may be performed on an apparatus to determine the amounts of medium used for that particular apparatus. The calibration method includes printing pages with test patches for a plurality of colors at a particular dot value (or density), and weighing similar printed test pages so that the amount of medium used to print colors at particular dot values is determined by subtracting a weight of the pages before printing from the weight of the printed test pages. The change in weight (or mass) of the medium is used to populate the reference device for that apparatus.Type: GrantFiled: May 28, 2010Date of Patent: October 15, 2013Assignee: Xerox CorporationInventor: Peter A. Crean
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Patent number: 8542409Abstract: A printing apparatus is provided with a halftone unit performing a halftone process in which a possibility of dot formation is determined for each pixel based on a dot occurrence rate of the pixel constituting image data, and a printing unit forming dots on a recording medium based on the possibility of dot formation. The halftone unit predicts the occurrence of dot overlap in which a plurality of dots overlaps on the printing medium and performs the halftone process based on an evaluation index according to the dot overlap.Type: GrantFiled: April 6, 2010Date of Patent: September 24, 2013Assignee: Seiko Epson CorporationInventors: Takuya Wakayama, Satoshi Yamazaki, Toshiaki Kakutani
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Patent number: 8537192Abstract: An exposure device includes a mirror to reflect light used for exposure of an object, a holder to hold the mirror, an adhesive that bonds the mirror to the holder and elastically deforms, and an adjusting tool that pushes the mirror to change a direction of the mirror.Type: GrantFiled: April 20, 2011Date of Patent: September 17, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventor: Takeshi Endo
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Patent number: 8451310Abstract: An image forming apparatus including; an exposure section provided with, a light emitting element, a polygon mirror to receive light beams from the light emitting element, and to expose an image carrier using light beam via the polygon mirror based on image data; an image processing section to adjust image magnification by image processing of the image data; and, a control section configured to select at least either of a first magnification adjustment to change a rotation speed of the polygon mirror and a second magnification adjustment to carry out image processing of the image data by the image processing section, based on comparison results between a paper interval time during recording paper conveyance in image formation and the first magnification adjustment time required to stabilize polygon mirror rotation in the first magnification adjustment, when adjusting image magnification with respect to recording paper.Type: GrantFiled: December 2, 2011Date of Patent: May 28, 2013Assignee: Konica Minolta Business Technologies, Inc.Inventors: Kenji Tamaki, Masashi Sugano, Akinori Kimata, Katsunori Takahashi, Akifumi Isobe, Satoshi Shimao
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Patent number: 8432423Abstract: A method is provided for forming an image on a media while the media is moved relative to an imaging head. The media can include a pattern of registration sub-regions, such as a matrix. The image can include one or more patterns of features, such as color features for a color filter which can be registered with the pattern of registration sub-regions. The images can be formed by a laser-induced thermal transfer process. The method can include the steps of operating an imaging head to emit imaging beams. A first portion of the image is formed while scanning a first group of imaging beams in a first direction over the media at a first scanning speed and a second portion of the image is formed while scanning a second group of the imaging beams in a second, opposite direction over the media at a second, different scanning speed.Type: GrantFiled: September 25, 2007Date of Patent: April 30, 2013Assignee: Kodak Graphics Communications Canada CompanyInventor: Greg Peregrym
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Patent number: 8422898Abstract: In the image forming apparatus, the partial image data for gradation adjustment is threshold conversion data of a partial image, the partial image is a part of a base pattern image with a predetermined size and does not contain any sides of the base pattern image, and the base pattern image is an image generated in an error diffusion method; and the patch image generator unit generates an image of a toner pattern by arranging the partial image of the partial image data repeatedly, and forms the toner pattern.Type: GrantFiled: November 30, 2010Date of Patent: April 16, 2013Assignee: Kyocera Document Solutions Inc.Inventors: Hiroomi Nakatsuji, Jun Nakano, Hiroki Tanaka
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Patent number: 8411324Abstract: Line width of images marked by an image marking device is adjusted by reading a calibration patch marked by the marking device, and then adjusting one or more settings of the marking device, such as exposure intensity or cleaning field intensity, independent of the digital control of the tone reproduction curve so that the line width of subsequently marked images becomes closer to a target value. A digital control may be implemented to compensate for the impact of the modification of the one or more settings on the tone reproduction curve.Type: GrantFiled: February 3, 2010Date of Patent: April 2, 2013Assignee: Xerox CorporationInventors: Paul L. Jacobs, W. Bradford Willard, Brian R. Conrow
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Patent number: 8411123Abstract: A light scanning apparatus is provided in which a light source is controlled so that the total exposure energy density of when light beams are emitted to an image carrying member across light deflection scanning of a plurality of times becomes constant on the image carrying member, thereby high image quality, long lasting output images are obtained. Exposure energy density necessary when exposure is completed by light deflection scanning of one time is set to Ex1, the latent image electrical potential deepness of a latent image formed thereof is set to Vs1, total exposure energy density across light deflection scanning of a plurality of times is set to Ex_n, the latent image electrical potential deepness thereof is set to Vs_n, wherein Ex_n=Ex1??Ex and {(Vs_n/Vs1)^3?1.05}×Ex1<?Ex<{(Vs_n/Vs1)^3?0.95}×Ex1.Type: GrantFiled: August 21, 2008Date of Patent: April 2, 2013Assignee: Ricoh Company, Ltd.Inventor: Hiroyuki Suhara
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Patent number: 8390661Abstract: A method of calibrating an electrophotographic printer (30), the printer configured with a plurality of light settings, each light setting arranged to produce a different element type, the method comprising: determining (S10) a first light level required to print a first element type by applying a proportional change to a first initial light setting; and determining (S30) a second light level required to print a second element type by applying substantially the same proportional change to a second initial light setting.Type: GrantFiled: September 25, 2008Date of Patent: March 5, 2013Assignee: Hewlett-Packard Indigo B.V.Inventors: Ran Waidman, Eyal Shelef, Shlomo Harush
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Patent number: 8310512Abstract: The invention relates to a method of storing images on a medium able to be etched on the basis of a writing procedure using a laser beam, in which a substrate, preferably flexible, comprises a multiplicity of expanses of lateral dimensions less than 10 millimeters, each reserved for an image, and an expanse reserved for an image comprises as many elementary zones as there are image pixels to be stored, the image stored in an expanse being able to be read by optical magnification means. Each elementary zone comprises an engraved pattern whose diameter represents one respective grey level out of n possible levels.Type: GrantFiled: March 10, 2009Date of Patent: November 13, 2012Assignee: Commissariat a l'Energie AtomiqueInventor: Christophe Martinez
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Patent number: 8305414Abstract: A write control circuit for controlling driving of a plurality of light sources each including a laser diode for emitting light includes a plurality of write control mechanisms configured to control the plurality of laser diodes to perform writing for image forming with a plurality of colors. Each of the plurality of write control mechanism includes at least one image development part for developing and processing image data and at least one laser diode control part for controlling driving of the laser diodes.Type: GrantFiled: December 6, 2006Date of Patent: November 6, 2012Assignee: Ricoh Company, Ltd.Inventor: Satoshi Ohmiya
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Patent number: 8274701Abstract: High speed printing system for printing magnetic ink systems and associated methods are disclosed. A color of the magnetic ink may be designed to resemble one of the non-magnetic inks so that instead of ejecting the one non-magnetic ink, the printing system ejects the magnetic ink. Nozzles in a printhead may also be arranged to be adjacent to each other and may be appropriately spaced without causing the inks to be mixed in the printhead. Additionally, a color transform system may be provided to transform a sheet image in accordance with ejecting at least the magnetic and the non-magnetic ink from the printhead.Type: GrantFiled: May 12, 2009Date of Patent: September 25, 2012Assignee: Ricoh Production Print Solutions LLCInventor: John Seibt
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Patent number: 8253768Abstract: A disclosed optical scanner includes a light source unit and a control unit configured to control the light source unit. Light emitted from the light source unit is scanned to expose a scan object surface and form an image on the scan object surface. The light source unit includes plural light sources arranged at a density equal to N (N being an integer of two or more) times higher than a density of pixels on the scan object surface. The control unit controls the light source unit such that one pixel is formed by at least two of the light sources.Type: GrantFiled: November 30, 2006Date of Patent: August 28, 2012Assignee: Ricoh Company, Ltd.Inventors: Masaaki Ishida, Yasuhiro Nihei, Atsufumi Omori, Jun Tanabe
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Patent number: 8233022Abstract: It is determined whether a low density area in which pixels having density less than a predetermined density exist in succession is included in an image signal or not, and if the low density area exists, an image is formed by irradiating the laser light in a first condition for a pixel to be interested in each pixel area within the low density area and irradiating the laser light in a second condition being different from the first condition for other pixels in the pixel area. In this way, it is possible to improve reproducibility of a highlight area in a high resolution image and improve reproducibility of characters and line images or the like.Type: GrantFiled: December 10, 2008Date of Patent: July 31, 2012Assignee: Canon Kabushiki KaishaInventor: Takeo Yamamoto
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Patent number: 8233020Abstract: Methods for imaging patterns of features by thermal transfer involve controlling intensities of a plurality of beams. The intensities of beams that image edge portions of a feature may be set to be different from the intensities of beams that image interior portions of the feature. Beams that image home and away edges of a feature may be controlled to have different intensities. Apparatus for imaging patterns of features may comprise a controller configured to maintain intensity information for channels of a multi-channel imaging head. The controller uses the intensity information to set intensities of those channels that correspond to edge portions of features being imaged in a current swath of the imaging head.Type: GrantFiled: July 11, 2007Date of Patent: July 31, 2012Assignee: Kodak Graphic Communications Canada CompanyInventors: Sylvia H. Stevenson, Valentin Karasyuk
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Patent number: 8212847Abstract: A method is provided for decoupling the control of dot gain and optical density in electrophotographic based printing by varying the exposure level for each dot in an image.Type: GrantFiled: September 13, 2006Date of Patent: July 3, 2012Assignee: Hewlett-Packard Development Company, L.P.Inventors: Dror Kella, Ron Maurer, Ayelet Pnueli, Mani Fischer, Eyal Shelef
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Patent number: 8189224Abstract: Each time printing is performed by an MFP, a controller control unit counts up a billing counter value stored in a billing-counter recording unit. Additionally, each time a print job is completed, the controller control unit stores a job history of the print job in a job-history storage unit. A job history of a print job that is in progress at a predetermined counting time is divided into a plurality of job histories and managed by a job-history managing application.Type: GrantFiled: April 30, 2009Date of Patent: May 29, 2012Assignee: Canon Kabushiki KaishaInventor: Isamu Nakagawa
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Publication number: 20120126525Abstract: An identification document (10) comprises a personalized first visual marking (14) that is arranged in a first region (12) of the identification document (10), the first region (12) being configured in such a way that, upon laser irradiation of the same, local darkenings of the optical impression of the identification document (10) are produced, resulting from material transformations. The identification document (10) further exhibits a second visual marking (26) that produces the optical impression of a copy of the first visual marking (14) and is arranged in a second region (22) of the identification document (10), the second region (22) being configured in such a way that, upon laser irradiation of the same, local lightenings of the optical impression of the identification document (10) are produced, resulting from material transformations.Type: ApplicationFiled: July 27, 2010Publication date: May 24, 2012Applicant: GIESECKE & DEVRIENT GMBHInventors: Walter Dorfler, Alfons Assfalg
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Patent number: 8159732Abstract: An apparatus and methods of use for adjusting a sliding guide rod for an imaging device of a flatbed scanner to improve scanner skew misalignment comprising an attachment member movably mounting the sliding guide rod at one end thereof to one side of the flatbed scanner so as to allow skew-adjusting movement of the sliding guide rod at an opposite end thereof relative to the flatbed scanner and a skew adjustment assembly attached to an opposite side of the flatbed scanner and movably coupling and supporting the opposite end of the sliding guide rod to the opposite side of the flatbed scanner and being actuatable to cause the sliding guide rod to undergo skew adjustment relative to the flatbed scanner to correct scanner skew misalignment of the imaging device.Type: GrantFiled: October 31, 2008Date of Patent: April 17, 2012Assignee: Lexmark International, Inc.Inventors: Chengwu Cui, Adam Christopher Kelty, Charles Brandon Langrel
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Patent number: 8144177Abstract: An image formation apparatus for executing image formation by exposing an image carrier with irradiation light emitted from a laser source on the basis of an input signal to drive the laser source includes a correction amount calculation unit configured to calculate, on the basis of a generated correction pattern, a correction amount to control the ON or OFF timing to drive the laser source, and a signal generation unit configured to generate, on the basis of image data and the correction amount calculated by the correction amount calculation unit, a corrected signal obtained by correcting the input signal to drive the laser source so as to form the image data by controlling the ON or OFF timing.Type: GrantFiled: November 30, 2005Date of Patent: March 27, 2012Assignee: Canon Kabushiki KaishaInventors: Katsumi Takahashi, Tsuyoshi Moriyama, Atsushi Chaki, Takahiko Yamaoka
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Patent number: 8125506Abstract: An electro-optical device includes a potential generating circuit that generates a first power supply potential and a second power supply potential that is different from the first power supply potential; a first signal processing circuit that selectively outputs one of a first high potential and a first low potential according to a data signal at one of at least three levels; a second signal processing circuit that selectively outputs one of a second high potential that is different from the first high potential and a second low potential that is different from the first low potential according to the data signal; a first current source that generates a first current in accordance with an output of the first signal processing circuit and the first power supply potential; a second current source that generates a second current in accordance with an output of the second signal processing circuit and the second power supply potential; and an electro-optical element that provides a tone level according to the fiType: GrantFiled: May 24, 2007Date of Patent: February 28, 2012Assignee: Seiko Epson CorporationInventor: Shinsuke Fujikawa