Patents Assigned to Xerox
  • Publication number: 20070109394
    Abstract: A system changes the setpoint of a digital reprographic system in response to the local image content by utilizing tag data that contains information identifying the image content type of a corresponding image data pixel. The system modifies the reproduction characteristics of the output to accommodate the diverse image content types by simultaneously controlling the overall tone reproduction curve of the system on a pixel-by-pixel basis.
    Type: Application
    Filed: November 16, 2005
    Publication date: May 17, 2007
    Applicant: Xerox Corporation
    Inventors: Shawn Updegraff, Eric Gross
  • Publication number: 20070111120
    Abstract: A process for the preparation of a tertiary arylamine compound, comprising reacting an arylhalide, such as an arylbromide, and an arylamine in an alkylene glycol compound in the presence of a catalyst.
    Type: Application
    Filed: November 16, 2005
    Publication date: May 17, 2007
    Applicant: Xerox Corporation
    Inventors: Jennifer Coggan, Timothy Bender
  • Patent number: 7217444
    Abstract: A system for electrostatic powder coating irregular shaped, three-dimensional articles with 10 ?m average diameter powder particles. A supply of powder particles are triboelectrically charged and transported onto one or more donor rolls without the need from fluidization of the powder particles. The charged powder particles on the one or more donor rolls are metered to provide a uniform layer thereon. A combination of AC electric fields and/or air jet detach the powder particles from the one or more donor rolls and produce a powder cloud that is directed to the grounded article to be coated. A layer of powder particles coats the outer surface of the article, and the layer is subsequently cured to form a permanent and durable film on the article.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: May 15, 2007
    Assignee: Xerox Corporation
    Inventors: Dan A. Hays, Jack T. Lestrange
  • Patent number: 7218597
    Abstract: In the disclosed holographic recording method, when multiplex recording of data of a plurality of pages is performed, exposure time of a hologram of a final page to be recorded is fixed irrespective of a degree of multiplicity while an exposure time of each page is changed and diffraction efficiencies of the holograms of the plurality of pages becomes equal.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: May 15, 2007
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Shin Yasuda, Katsunori Kawano, Jiro Minabe, Tatsuya Maruyama, Norie Matsui
  • Patent number: 7218784
    Abstract: This invention relates to a method and apparatus for controlling image quality and compression ratios in image segmentation. More particularly, the invention is directed to an image segmenting system and method that analyzes and classifies pixel blocks of an image to determine the manner in which the image block should be compressed, e.g. with a lossy or a lossless technique. This approach, which assumes no apriori knowledge of the any specific region of the image, results in effective use of the various known compression techniques and provides improved overall compression ratios and image quality.
    Type: Grant
    Filed: May 1, 2000
    Date of Patent: May 15, 2007
    Assignee: Xerox Corporation
    Inventors: Norman W. Zeck, William E. Nelson, Remo J. D'Ortenzio
  • Patent number: 7217901
    Abstract: A system for transporting and selectively sorting particles includes a first wall and a traveling wave grid extending along the first wall. The system includes a second wall having a passage extending therethrough and a gate operatively associated with the passage. A controller is adapted to output a multi-phase electrical signal. The controller is in communication with the traveling wave grid and the gate. A method of using the system is also provided.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: May 15, 2007
    Assignee: Xerox Corporation
    Inventors: Meng H. Lean, John J. Ricciardelli, Osman Todd Polatkan, Michael J. Savino, Eric Peeters, Scott Elrod
  • Patent number: 7218332
    Abstract: Systems and methods are presented for processing and rendering image data during a single pass through the image data. A method includes loading scanlines of image data into a rolling band buffer, performing a windowing technique on the image data, and determining if a class change was experienced by any window having a portion in an output scanline of the buffer. The method further includes processing image data in the output scanline for a window portion that experienced a class change, using a blended rendering algorithm. If no class change is detected, the method includes processing image data in the output scanline for the window portion using a class-based rendering algorithm. The method optionally includes rendering processed image data for the output scanline to a rendering device. According to other features, an apparatus includes a rolling band buffer, a windowing processor, class-based rendering algorithms, and a blended rendering algorithm.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: May 15, 2007
    Assignee: Xerox Corporation
    Inventors: Hui Cheng, Ying-wei Lin
  • Patent number: 7218785
    Abstract: Methods and apparatus for spectrally-encoding plural source images and for providing the spectrally-encoded plural source images in a composite image, for rendering the composite image in a physical form, or for recovering at least one of the encoded source images from the rendered composite image such that the recovered source image is made distinguishable. For example, when the rendered composite image is subjected to illumination by one of the narrow band illuminants for which a source image was encoded, the source image becomes visually detectable by an observer.
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: May 15, 2007
    Assignee: Xerox Corporation
    Inventors: Gaurav Sharma, Robert P. Loce, Steven J. Harrington
  • Patent number: 7218417
    Abstract: A method and system for converting, transforming or translating an imaging element associated with a first resolution into a second imaging element associated with a second resolution are provided. The method and system provide for the selection of output imaging element pattern based on context information extracted from areas neighboring an area undergoing conversion when information extracted from the area undergoing conversion provides an insufficient basis from which to select an output imaging element pattern. Exemplary embodiments are directed toward preservation of area coverage and centroid placement. The method provides for consideration of characteristics of a marking engine in the output imagine element pattern selections process. In xerographic environments clustering can be maximized, thereby reducing xerographic stress. In inkjet environments output pattern selections can be directed toward decreased clustering.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: May 15, 2007
    Assignee: Xerox Corporation
    Inventors: David J. Lieberman, Stuart Alan Schweid
  • Patent number: 7216970
    Abstract: An ink jet printer includes a printer housing, an imaging drum, a drum frame connected to the printer housing and the imaging drum, a print head frame movably mounted in the printer housing, at least two print heads mounted to the print head frame, a first alignment pin connected to the print head frame, and a second alignment pin connected to the print head frame. The imaging drum includes first and second ends. The drum frame includes a first support connected to the first end of the imaging drum and a second support connected to the second end of the imaging drum. The first support includes a first docking station and the second support includes a second docking station. The print head is movable between a printing position and a cleaning position. Each alignment pin connects to the print head frame and extends generally towards the drum frame. The first alignment pin is adapted to be received by the first docking station when the print head frame is moved into the printing position.
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: May 15, 2007
    Assignee: Xerox Corporation
    Inventors: Daniel W. Costanza, Michael F. Leo, Alexander J. Fioravanti
  • Patent number: 7217484
    Abstract: Disclosed is an oil-less toner composition exhibiting good low temperature release and stripping in fixing, enhanced surface gloss of fixed image, and/or OHP transparency. By controlling one or more properties, such as the relative thermal energy input during the EA aggregation/coalescence process, using a wax having a certain dispersion size (D50), molecular weight and/or melting temperature, the toner particle produced thereby can achieve optimal surface wax protrusion with a surface wax content of about 12 to about 25 weight percent. This is based on the total amount of wax in the toner, as determined by x-ray photoelectron spectroscopy (XPS). The contamination of wax on developing rolls, photoreceptor and carriers, which lowers the reliability of the developer, is suppressed with the present exemplary embodiment.
    Type: Grant
    Filed: April 3, 2006
    Date of Patent: May 15, 2007
    Assignee: Xerox Corporation
    Inventors: Vincenzo Marcello, David Kurceba, Nancy Hunt, Cheih-Min Cheng, Tie Hwee Ng
  • Patent number: 7216948
    Abstract: An image forming apparatus has: a recording head having plural unit recording heads divided in a direction orthogonal to a moving direction of a recording medium; a detecting section detecting at least offset of an image recorded by a vicinity of an end portion, in the direction orthogonal to the moving direction of the recording medium, of the plural unit recording heads; and a correcting section correcting recording offset of the recording head on the basis of results of detection of the detecting section.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: May 15, 2007
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yoshiki Matsuzaki, Kozo Tagawa, Ryo Ando, Takeshi Kato, Tsutomu Udaka, Toshiyuki Kazama, Osamu Goto, Kenichi Kawauchi
  • Patent number: 7218876
    Abstract: Programming of the input and output paper handling setup of a high speed reprographic system can adversely affect the throughput of the system. A method or system includes a control system that examines the proposed setup and then determine if any of these options results in a loss of throughput. If such losses are detected and exceed a predetermined threshold, the operator of the device will be informed and given the opportunity to change the setup to reduce the throughput loss.
    Type: Grant
    Filed: July 5, 2005
    Date of Patent: May 15, 2007
    Assignee: Xerox Corporation
    Inventors: Anthony M. Federico, Dragana Pavlovic, John H. Conley
  • Patent number: 7218886
    Abstract: A method for removing a residue, such as lateral charge migration (LCM) film, from an imaging member includes contacting at least a portion of the imaging member with a wash liquid capable of removing the residue. The wash liquid containing the residue is then removed, for example, by applying an absorbent material such as a toner, to the contacted portion of the imaging member.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: May 15, 2007
    Assignee: Xerox Corporation
    Inventors: Robert E. Hildebrand, Joseph M. Wing, Randall C. Ryon, John R. Lambie, Moritz P. Wagner, Huoy-Jen Yuh, Douglas A. Lundy, Michael J. Turan, Eric Bonn
  • Patent number: 7219310
    Abstract: Glyph instructions are formed which are understandable by a person following the instructions, irrespective of which written language is understood by the person. The glyph instructions follow defined grammar and syntax rules. A plurality of action glyphs are used to represent a plurality of defined actions capable of being undertaken by the person following the instructions. A plurality of material glyphs are defined to represent a plurality of materials which are includable as part of the instruction, and a plurality of instrumentation glyphs are defined to represent a plurality of instruments which may be included in the instructions. Selected ones of the action glyphs, material glyphs and instrumentation glyphs are arranged in relationship to each other in accordance with the predetermined grammar and syntax to form specific instructions understandable by the person following the instruction, irrespective of the written language which is understood by the person.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: May 15, 2007
    Assignee: Xerox Corporation
    Inventors: Jesus Santoyo Ortega, Jose Luis Duenas, Rosa Elena Castillo, Jésus Esquivel, Hugo C. Correa, Mauricio Campos, Salvador De Luna, Gilberto Esparza
  • Patent number: 7218418
    Abstract: A method and a system for de-screening an image signal. The system comprises a filter bank, a control module and a blend module. The filter bank filters the image signal and produces a set of filter output signals. The control module generates at least one control signal based on the image signal and some of the filter output signals. The blend module dynamically blends the filter output signals in accordance with the control signal to produce a de-screened output signal.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: May 15, 2007
    Assignee: Xerox Corporation
    Inventors: Donald J. Curry, Doron Kletter, Asghar Nafarieh
  • Patent number: 7217374
    Abstract: To provide a resistance element having an electric resistance body with excellent stability and a method of manufacturing the same. The resistance element includes an electric resistance body, on a base body surface, consisting of a carbon nanotube structure layer 14, which configures a mesh structure in which at least plural carbon nanotubes are cross-linked to one another. The method of manufacturing the resistance element includes: an applying step of applying the base body surface 12 with a liquid solution containing carbon nanotubes having functional groups; and a cross-linking step of forming the carbon nanotube structure layer 14, used as an electric resistance body, that configures a mesh structure in which the plural carbon nanotubes are cross-linked to one another through curing of the liquid solution after application.
    Type: Grant
    Filed: January 29, 2004
    Date of Patent: May 15, 2007
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Miho Watanabe, Masaki Hirakata, Kazunori Anazawa, Chikara Manabe, Kentaro Kishi, Taishi Shigematsu, Takashi Isozaki, Hiroyuki Watanabe, Shigeki Ooma, Shinsuke Okada
  • Publication number: 20070106023
    Abstract: Siloxane-containing materials that have been prepared by a sol-gel method and polymeric binder materials from interpenetrating networks. Silicon-containing layers including such interpenetrating networks are provided. Methods for preparing interpenetrating networks and silicon-containing layers including interpenetrating networks are also provided. In addition, photoreceptors and image-forming apparatus including such silicon-containing layers are provided.
    Type: Application
    Filed: November 7, 2005
    Publication date: May 10, 2007
    Applicant: XEROX CORPORATION
    Inventors: Timothy Bender, Barkev Keoshkerian, John Graham, Yvan Gagnon, Cheng-Kuo Hsiao, Nan-Xing Hu
  • Publication number: 20070106818
    Abstract: A client-side handheld device requests a server to convert server-side documents into a compression format prior to transmission of said documents to the client. The server retrieves and converts the requested documents to a raster image that is then compressed according to attributes based on information received from the client device in the initial document request. Instead of having to manipulate multiple formats which the original documents are in and supported by the server, the client-side device is preferably optimized in hardware and/or software to support and otherwise take advantage of the requested compression format. The compressed document is then delivered to the client device, in whole or in part, selectively or progressively over time per individual requests prior to displaying the received data to the end-user. Depending on the requested delivery mode, server-side documents are preferably compressed using wavelet compression methods, such as the JPEG 2000 standard, known in the arts.
    Type: Application
    Filed: December 22, 2006
    Publication date: May 10, 2007
    Applicant: Xerox Corporation
    Inventors: Robert Buckley, Emil Rainero, James Reid, Pamela Spiteri
  • Publication number: 20070106793
    Abstract: The system comprises an improved document monitoring agent in which user evaluations are used to decide whether a changed document should be saved in the system or not. The evaluation of importance of the change in a document is performed by one or more users who collaboratively monitor a networked document, typically identified by a URL. By providing a user evaluation interface, it is possible for users to indicate their evaluation of the significance of the change. As such, only significantly changed documents, as indicated by the users themselves, are saved. Thus, a more efficient saving is obtained while at the same time reducing the risk of discarding potentially interesting changed documents which would have been discarded by conventional monitoring agents.
    Type: Application
    Filed: December 28, 2006
    Publication date: May 10, 2007
    Applicant: XEROX CORPORATION
    Inventors: Pierre Bernard, Natalie Glance, Jean-Luc Meunier