Patents Assigned to Xerox
  • Developing apparatus, process cartridge, and image forming apparatus
    Patent number: 8139976
    Abstract: A developing apparatus comprises: a housing having an opening that opens towards an image carrier on which an electrostatic latent image is formed, and a developer storing unit in which a developer is stored; a developer carrier that carries the developer stored in the developer storing unit and transports the developer to a developing region in opposition to the image carrier; a partitioning frame arranged in a groove formed between the developer carrier and the developer storing unit of the housing, that is provided with a connecting hole which enables connect between the developer storing unit and the opening; a partition arranged on a side surface of the partitioning frame; and a closely contact section that causes the partitioning frame to closely contact to the groove.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: March 20, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Isao Ito, Kazuhiro Saito
  • System and method for compensating for registration errors arising from heated rollers in a moving web printing system
    Patent number: 8136907
    Abstract: A method compensates for thermal expansion of rollers in a web print zone. The method includes receiving an angular velocity signal from a first encoder for a roller in a print zone of a moving web printing system, receiving a signal from a first temperature sensor corresponding to a temperature of the roller, modifying a first diameter for the first roller with a first predetermined distance in response to the temperature of the first roller being different than a first predetermined temperature, identifying a velocity of a moving web in the print zone of the moving web printing system with reference to the modified first diameter, and delivering a firing signal to a first printhead proximate the first roller to energize the inkjet nozzles in the first printhead and eject ink onto the web at a position corresponding to the identified moving web velocity.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: March 20, 2012
    Assignee: Xerox Corporation
    Inventors: Yongsoon Eun, Jeffrey J. Folkins, Jess R. Gentner, Todd W. Thayer, R. Enrique Viturro
  • Diagnostic method and system for modular printing systems
    Patent number: 8139961
    Abstract: Disclosed are methods and systems to diagnose modular printing systems having two or more interchangeable modules. In addition, methods and systems are provided to generate instructions for configuring the interchangeable modules within the printing system to produce optimal results.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: March 20, 2012
    Assignee: Xerox Corporation
    Inventors: Barry Paul Mandel, Steven Robert Moore
  • Waste phase change ink recycling
    Patent number: 8136934
    Abstract: A printhead for use in an imaging device includes a reservoir configured to receive ink from an ink source. An aperture plate includes a plurality of ink jet apertures at a first location in the aperture plate and a plurality of recycling apertures at a second location in the aperture plate. The printhead includes a plurality of ink jets, each ink jet being configured to receive ink from the reservoir and to reject ink through one of the ink jet apertures in the aperture plate, and a plurality of channels, each channel being configured to fluidly couple one of the recycling apertures in the aperture plate to the reservoir. A pressure source is coupled to the reservoir that is configured to generate a pressure in the reservoir.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: March 20, 2012
    Assignee: Xerox Corporation
    Inventors: Trevor James Snyder, James Matthew Cunnington
  • System and method for measuring drop position in an image of a test pattern on an image substrate
    Patent number: 8136913
    Abstract: A system evaluates image quality in an image generating system in the presence of digital image noise and/or missing jets. The system includes a test pattern generator configured to generate a test pattern on an image substrate, an image capture device configured to generate a digital image of the generated test pattern on the image substrate, an image evaluator configured to process the digital image and generate a solution for an over-determined matrix of equations formed from differential distance measurements obtained with reference to a jet in the digital image by minimizing the root-mean-square (RMS) of residual errors corresponding to the matrix, and a controller configured to generate a correction parameter from the generated solution and to apply the correction parameter to the jet used for the used for the differential distance measurements.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: March 20, 2012
    Assignee: Xerox Corporation
    Inventors: Andrew S. Yeh, Cary Eric Sjolander
  • Variable data periodic line patterns for composing a font system
    Patent number: 8139270
    Abstract: A method and system is provided for generating a variable data differential line pattern font comprising forming a periodic line pattern suitable for tessellation disposition within a printed document and selectively distorting a portion of the periodic line pattern in a predetermined manner wherein the distorting comprises generating a distinguishable font corresponding to the distorting. A plurality of different distinguishable fonts are formed by a corresponding plurality of distorted line patterns, respectively.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: March 20, 2012
    Assignee: Xerox Corporation
    Inventors: Zhigang Fan, Reiner Eschbach, Judith E. Stinehour
  • Systems and methods for identifying user types using multi-modal clustering and information scent
    Patent number: 8140706
    Abstract: Techniques for determining user types based on multi-modal clustering are provided. The topology, content and usage of a document collection or web site is determined. The user paths are identified using longest repeating subsequence techniques and a multi-modal information need vector is determined for each significant user path. Multi-modal vectors for each document in the significant path, content, uniform resource locators, inlink and outlink multi-modal vectors are determined and combined based on path position and access frequency. Multi-modal clustering is performed based on a multi-modal similarity function and a specified measure of similarity using a type of multi-modal clustering such as K-means or wavefront clustering. The identified clusters may be further analyzed based on changes to the weighting of the corresponding content, url, inlinks and outlinks multi-modal feature vectors.
    Type: Grant
    Filed: August 6, 2007
    Date of Patent: March 20, 2012
    Assignee: Xerox Corporation
    Inventors: Ed Chi, Jeffrey Heer, Peter Pirolli
  • Solid ink melt tub with corrugated melt region and offset outlet
    Patent number: 8136933
    Abstract: A phase change ink melting assembly includes a tub having an open top, a bottom surface, and a plurality of side walls extending upwardly from the bottom surface. The bottom surface has a solid ink melt region and a melted ink outlet offset from the solid ink melt region. The solid ink melt tub includes a three dimensional area extending from the bottom surface in the solid ink melt region. At least one constraining surface is positioned proximate the open top of the melt tub above the solid ink melt region tub and thermally isolated from the melt tub. The at least one constraining surface is configured to prevent lateral movement of an ink stick as it is being fed downwardly into contact with the solid ink melt region.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: March 20, 2012
    Assignee: Xerox Corporation
    Inventor: Brent Rodney Jones
  • Image generating apparatus, image processing apparatus, recording medium and computer readable recording medium
    Patent number: 8139237
    Abstract: An image generating apparatus includes a document-image acquiring section, an information-image acquiring section and a synthesizing section. The document-image acquiring section acquires a document image, which is a binary image formed based on an electronic document. The information-image acquiring section acquires an information image, which is a binary image formed based on predetermined information. The synthesizing section performs an exclusive OR operation between the document image and the information image to synthesize the document image and the information image.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: March 20, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Takeshi Onishi
  • Disk sector allocation for high performance access to images
    Patent number: 8139874
    Abstract: An image data storage system and associated method store, on one or more disk drives in a disk drive array, original image data for different images as well as multiple resolution levels of compressed image data for each image. The lowest resolution level image data for multiple different images (i.e., “thumbnail” copies of images) are grouped together and stored within sectors closest to the center. The progressively higher resolution levels of image data for the same images can similarly be grouped together and stored within sectors sequentially from a first track closest to the center to a last track closet to an outer edge. Alternatively, all higher resolution levels of image data for any single image can be grouped together and stored within a same sector as close to the center as possible. This organization can significantly reduce average access time for large collections of images.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: March 20, 2012
    Assignee: Xerox Corporation
    Inventors: Paul R. Austin, Robert R. Buckley
  • Ferromagnetic nanoparticles with high magnetocrystalline anisotropy for MICR toner applications
    Patent number: 8137879
    Abstract: A toner including stabilized magnetic single-crystal nanoparticles, wherein the value of the magnetic anisotropy of the magnetic nanoparticles is greater than or equal to 2×104 J/m3. The magnetic nanoparticle may be a ferromagnetic nanoparticle, such as FePt. The toner includes a magnetic material that minimizes the size of the particle, resulting in excellent magnetic pigment dispersion and dispersion stability, particularly in emulsion/aggregation toner processes. The smaller sized magnetic particles of the toner also maintains excellent magnetic properties, thereby reducing the amount of magnetic particle loading required in the toner.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: March 20, 2012
    Assignee: Xerox Corporation
    Inventors: Richard P. N. Veregin, Karen A. Moffat, Marcel P. Breton, Peter M. Kazmaier, Patricia A. Burns, Paul F. Smith
  • Storage control device and image processing device
    Patent number: 8140784
    Abstract: A storage control device includes an obtaining unit that obtains data; a recognition unit that recognizes an area among areas in a storage unit, as a recordable area, the area to be recognized being where the data obtained by the obtaining unit is stored and overwriting has been executed a predetermined number of times; a recording unit that records data obtained by the obtaining unit onto the recordable area recognized by the recognition unit; a first overwriting unit that executes the overwriting on an area where data has been recorded by the recording unit and the overwriting has not yet been executed the predetermined number of times; and a specifying unit that specifies a remaining count for each of the areas in the storage unit, the remaining count indicating a difference between the predetermined number of times and a number of times the overwriting has been executed.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: March 20, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Kenji Tsutsumi
  • Collapsing cover for a customer replaceable unit used in a printer
    Patent number: 8136939
    Abstract: An integrated device enables a customer replaceable unit used within an ink jet printer to be enclosed within an enclosing structure as the unit is removed from the printer. The enclosing structure traps debris that may disburse from the customer replaceable unit as it is removed from the printer. The integrated device includes an extendable cover that encloses the customer replaceable unit in response to one end of the cover being moved away from the other end.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: March 20, 2012
    Assignee: Xerox Corporation
    Inventor: Brian Noel Reid
  • Colored toners
    Patent number: 8137880
    Abstract: The present disclosure provides blue toners and methods for their production. In embodiments, methods of the present disclosure include systems which may be utilized to predict the color properties of a blue toner, thereby permitting adjustment of the pigment loading and/or toner mass per unit area.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: March 20, 2012
    Assignee: Xerox Corporation
    Inventors: Jordan H. Wosnick, Richard P. N. Veregin, Eric Rotberg
  • Binary image data processing system and method
    Patent number: 8139873
    Abstract: The image data processing system and method disclosed, processes intermediate compressed binary data representing images scanned for copy or exporting, thereby enabling storage of the copy or export file to a common memory storage device. According to an exemplary embodiment, the image data processing system comprises a binary lossless decompress module, a binary to contone restoration module, and an export processing module, the export processing module processing multiple bit image data for exporting to an image data receiving device.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: March 20, 2012
    Assignee: Xerox Corporation
    Inventors: Francis Kapo Tse, Ramesh Nagarajan, James Russell, Chia-Hao Lee, John W. Wu
  • Systems and methods for reducing speech intelligibility while preserving environmental sounds
    Patent number: 8140326
    Abstract: An audio privacy system reduces the intelligibility of speech in an audio signal while preserving prosodic information, such as pitch, relative energy and intonation so that a listener has the ability to recognize environmental sounds but not the speech itself. An audio signal is processed to separate non-vocalic information, such as pitch and relative energy of speech, from vocalic regions, after which syllables are identified within the vocalic regions. Representations of the vocalic regions are computed to produce a vocal tract transfer function and an excitation. The vocal tract transfer function for each syllable is then replaced with the vocal tract transfer function from another prerecorded vocalic sound. In one aspect, the identity of the replacement vocalic sound is independent of the identity of the syllable being replaced.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: March 20, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Francine Chen, John Adcock
  • Retrieving and sharing electronic documents using paper
    Patent number: 8139860
    Abstract: In an embodiment of the invention, an electronic document (e-document) can be searched and found by capturing an image of the printed document. Instead of typing in a file name or searching through multiple directories, the user simply takes a picture of the document with a camera and the system uses the document image to locate the e-document. In an alternative embodiment of the invention, an image of a printed document can be useful for remote document sharing. In various embodiments of the invention, sharing an image of a printed document can be used to email a high quality paper document, send a high quality fax, or open a document to a page containing an annotation. Through co-design of the feature extraction and search algorithm in the system, the image feature detection robustness and search speed are improved at the same time.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: March 20, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Qiong Liu, Patrick Chiu, Lynn D. Wilcox
  • Image processing apparatus, recording medium, computer data signal, and image processing method
    Patent number: 8139870
    Abstract: There is provided an image processing apparatus including a character recognition section that executes character recognition on an input document image and outputs a character recognition result, an item name extraction section that extracts a character string relevant to an item name of an information item from the character recognition result, an item value extraction section that extracts a character string of an item value corresponding to the item name from the vicinity of the character string relevant to the item name in the document image, and an extraction information creation section that creates extraction information by associating the character string of the item value extracted by the item value extraction section to the item name.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: March 20, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Masahiro Kato
  • Color signal processing device, image processing apparatus, color signal processing method, image processing method, computer-readable medium and computer data signal
    Patent number: 8139848
    Abstract: A color signal processing device includes a conversion unit that converts a first color signal into a second color signal. The second color signal is obtained by changing a color point, in a device independent color space, corresponding to a color of each color component of the first color signal by a distance corresponding to a reduction degree so that the color point, in the device independent color space, corresponding to the color of each color component of the first color signal approaches white along a locus, in the device independent color space, corresponding to each color component of the first color signal. The locus, in the device independent color space, corresponding to each color component is obtained by changing an amount of a coloring material that corresponds to each color component and is used in an output device.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: March 20, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Noriko Hasegawa
  • Event driven plugin architecture for importing scanned image data into a production workflow
    Patent number: 8139249
    Abstract: Systems and methods are described that facilitate importing scanned image data into a production workflow, in accordance with various features described herein. A plurality of loosely-coupled, dynamically loaded plugins can be defined in a configuration file for a given production scanning job. The plugins can be invoked in response to a trigger with which each plugin is associated, and triggers can be associated with different phases of the production workflow, such as image data acquisition (importation), data filtering (pre-scanning), image analysis (scanning), and metadata processing (post-scanning). In this manner, the overarching scanning architecture need not have direct knowledge of which plugins are triggered, or even present, and custom plugins as well as standard plugins can be provided for each production scanning job.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: March 20, 2012
    Assignee: Xerox Corporation
    Inventor: Dennis L. Venable