Patents Assigned to Xerox
  • Patent number: 6922699
    Abstract: A system and method for browsing, retrieving, and recommending information from a collection uses multi-modal features of the documents in the collection, as well as an analysis of users' prior browsing and retrieval behavior. The system and method are premised on various disclosed methods for quantitatively representing documents in a document collection as vectors in multi-dimensional vector spaces, quantitatively determining similarity between documents, and clustering documents according to those similarities. The system and method also rely on methods for quantitatively representing users in a user population, quantitatively determining similarity between users, clustering users according to those similarities, and visually representing clusters of users by analogy to clusters of documents.
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: July 26, 2005
    Assignee: Xerox Corporation
    Inventors: Hinrich Schuetze, Francine R. Chen, Peter L. Pirolli, James E. Pitkow, Ed H. Chi, Jun Li, Ullas Gargi
  • Publication number: 20050157317
    Abstract: A system and method for detecting and correcting color misregistration errors in a color image forming device. Spectrophotometric analysis is performed on special color registration patches to transform color registration errors into a color signal. The color registration patch is designed so the color shift detected by the spectrophotometer allows prediction of the amount of color misregistration.
    Type: Application
    Filed: January 16, 2004
    Publication date: July 21, 2005
    Applicant: XEROX CORPORATION
    Inventors: Paul Butterfield, Mark Gwaltney, Timothy Sulenski
  • Publication number: 20050160368
    Abstract: A system and method for authoring a media presentation including a media presentation environment representation having a portion defined as a hot spot associated with a media presentation device. Various embodiments include a hyper-slide listing portion, a media presentation authoring portion, and/or a media presentation device listing portion. Various embodiments include an integrated presentation authoring preview environment. The method includes selecting a physical device for a presentation unit in the media presentation environment, manipulating a visual representation of the presentation unit, recording a display of the presentation unit, and previewing the presentation in an augmented reality environment, a virtual reality environment, or both. Various embodiments operate with a plurality of types of media presentation devices and a plurality of each type of device.
    Type: Application
    Filed: January 21, 2004
    Publication date: July 21, 2005
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Qiong Liu, Donald Kimber, Patrick Chiu, Surapong Lertsithichai, Chunyuan Liao, Hangjin Zhang
  • Publication number: 20050160092
    Abstract: To determine spectra, integrated multiple illuminant measurements from a non-fully illuminant populated color sensor may be converted into a fully populated spectral curve using a reference database. The reference database is partitioned into a plurality of clusters, and an appropriate centroid is determined for each cluster by, for example, vector quantization. Training samples that form the reference database may be assigned to the clusters by comparing the Euclidean distance between the centroids and the sample under consideration, and assigning each sample to the cluster having the centroid with the shortest Euclidean distance. When all training samples have been assigned, the resulting structure is stored as the reference database. When reconstructing the spectra for new measurements from the sensor, the Euclidean distances between actual color samples under measurement and each cluster centroid are measured.
    Type: Application
    Filed: January 16, 2004
    Publication date: July 21, 2005
    Applicant: XEROX CORPORATION
    Inventors: Lalit Mestha, Sohail Dianat, Francesca Polo, Gary Skinner
  • Publication number: 20050157129
    Abstract: A fluid container, such as, for example, an inkjet print head cartridge, architecture uses a relatively large filter that is located below a negative pressure material chamber and a free ink chamber in a side-by-side relationship. The negative pressure material volume relative to a free ink chamber value can me made to be approximately one to one. Both chambers overlie an ink manifold/delivery port and are separated from the delivery port by a filter. Flow impedance of the cartridge is reduced, as a result, in any orientation of the cartridge. The filter may be separated from, or in contact with a negative pressure material. A cartridge lid is provided with a negative pressure material chamber which is suspended into the cartridge. A negative pressure material having a fiber felt construction is provided.
    Type: Application
    Filed: January 21, 2004
    Publication date: July 21, 2005
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Eric Merz, Brian Hilton, Kazuyuki Oda, Takatoshi Tsuchiya
  • Publication number: 20050157319
    Abstract: The invention provides an image reading apparatus includes a feeder that feeds a sheet, a transfer path on which the sheet fed by the feeder is transferred, a first reading unit that captures a first image on a first face of the sheet from one side of the transfer path to obtain first image data, a second reading unit that captures a second image on a second face of the sheet from the other side of the transfer path to obtain second image data, and a correction unit that substantially equalizes image density of the first image data and that of the second image data in a case where the first image and the second image are captured at a single transfer of the sheet through the transfer path.
    Type: Application
    Filed: September 14, 2004
    Publication date: July 21, 2005
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Satoshi Mizuhashi, Yasuhisa Mizuta, Yoshitake Matsubara, Ayumi Onishi, Minoru Sodeura, Sadao Furuoya, Masato Saito
  • Publication number: 20050158640
    Abstract: An electrographic or electrostatographic imaging member comprises a supporting substrate, an undercoating layer, a charge generating layer, and a charge transport layer. Thick undercoating layers were prepared with a charge erase enabler by doping an undercoating layer with a charge generating pigment that is strongly absorbing at typical erase lamp light. Doped thick undercoating layers demonstrate good electrical properties with an erase energy reduction of at least 50 V. A process for fabricating an imaging member and an apparatus comprising such an member are also disclosed.
    Type: Application
    Filed: January 16, 2004
    Publication date: July 21, 2005
    Applicant: XEROX CORPORATION
    Inventors: John Chambers, Liang-Bih Lin, Jin Wu, Jennifer Hwang, Linda Ferrarese, Francisco Lopez
  • Publication number: 20050158003
    Abstract: A method of producing a polymer optical waveguide, including: preparing a mold; preparing a lower film base material; introducing a core-forming curable resin into a first through-hole of the mold with which the lower film base material is brought into close contact while sucking the concave portion of the mold from a second through-hole under reduced pressure to introduce the core-forming curable resin into the concave portion of the mold; curing the core-forming curable resin which has been introduced; removing the mold from the lower film base material; providing a clad-forming curable resin layer and an upper film base material, the clad-forming curable resin layer being sandwiched between the lower film base material, on which the core is formed, and the upper film base material; and curing the clad-forming curable resin layer to fix the lower film base material and the upper film base material.
    Type: Application
    Filed: September 1, 2004
    Publication date: July 21, 2005
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Shigemi Ohtsu, Keishi Shimizu, Kazutoshi Yatsuda, Eiichi Akutsu
  • Publication number: 20050159002
    Abstract: Methods are disclosed for fabricating spring structures that minimize helical twisting by reducing or eliminating stress anisotropy in the thin films from which the springs are formed through manipulation of the fabrication process parameters and/or spring material compositions. In one embodiment, isotropic internal stress is achieved by manipulating the fabrication parameters (i.e., temperature, pressure, and electrical bias) during spring material film formation to generate the tensile or compressive stress at the saturation point of the spring material. Methods are also disclosed for tuning the saturation point through the use of high temperature or the incorporation of softening metals. In other embodiments, isotropic internal stress is generated through randomized deposition (e.g., pressure homogenization) or directed deposition techniques (e.g., biased sputtering, pulse sputtering, or long throw sputtering). Cluster tools are used to separate the deposition of release and spring materials.
    Type: Application
    Filed: January 5, 2005
    Publication date: July 21, 2005
    Applicant: Xerox Corporation
    Inventors: David Fork, Scott Solberg, Karl Littau
  • Publication number: 20050157131
    Abstract: The present invention provides an ink-jet ink set including an ink-jet ink containing a colorant and a surfactant, and a treatment liquid, wherein an ink droplet formed by bringing the ink-jet ink into contact with the treatment liquid has a ratio (H/R) of height (H) to contact-area diameter (R) of from 0.15 to 0.30, the ratio (H/R) is detected at a point 100 milliseconds (ms) after ejecting the ink droplet onto a plain paper. The present invention also provides an ink-jet recording method and ink-jet recording apparatus using the ink-jet ink set.
    Type: Application
    Filed: September 7, 2004
    Publication date: July 21, 2005
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Taiga Iinuma
  • Patent number: 6920091
    Abstract: There is provided an optical reproduction apparatus and an optical recording and reproduction apparatus which can improve a CNR and can read at high speed. The center portion of a laser light emitted from a semiconductor laser is shaded by a light shading portion of a first light shade, and its peripheral portion is condensed and irradiates a super-resolution film of an optical disk. The center portion of a reflected light from the optical disk is mainly made of a signal component, and a noise component almost disappears. Thus, the reflected light from the optical disk is separated into the center portion and its peripheral portion, and the reflected light made of the signal component of the center portion is used for signal reproduction, so that the CNR can be increased.
    Type: Grant
    Filed: January 30, 2001
    Date of Patent: July 19, 2005
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Kiichi Ueyanagi
  • Patent number: 6920307
    Abstract: Systems and methods of registering a sheet in an image reproduction, e.g. . , . a xerographic, device use sheet parameters regardless of the tray or bin with which the sheets are associated, separate tallies of sheet registration correction factors for both sides of a sheet, and use registration errors detected on a first side of a sheet to generate correction factors concerning proper registration of the second side of that sheet. In embodiments, the systems and methods average registration errors for one particular side of a plurality of sheets to obtain a damped error signal that is taken into account for registration of subsequent sheets on each respective sheet side. In embodiments, the systems and methods determine variations between actual and target system performance to affect subsequent sheet flow and registration.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: July 19, 2005
    Assignee: Xerox Corporation
    Inventor: Richard L. Howe
  • Patent number: 6919973
    Abstract: Utilization of non-printing high-spatial-frequency auxiliary pixels are introduced into the bitmap of an image to obtain local control of the image development by modification of local average voltage in the development nip. These auxiliary pixels embody frequencies or levels of charge that are past the threshold for printing on the Modulation Transfer Function (MTF) curve, and therefore by themselves result in no toner deposition on the resultant page. These auxiliary pixels will however, position the toner cloud by modulating it and to compensate for cleaning field and toner supply effects. This will better position the toner cloud to ensure adequate toner supply to all parts of the image so that the desired printing pixels will print as intended.
    Type: Grant
    Filed: July 27, 1999
    Date of Patent: July 19, 2005
    Assignee: Xerox Corporation
    Inventors: Robert J. Meyer, Allen T. Retzlaff, Jr.
  • Patent number: 6920304
    Abstract: To provide an relief smoothing apparatus that smoothes an image on a recording sheet which is obtained by forming a polyolefin resin coating layer on a base sheet and forming a receiving layer, in which a toner image is infiltrated, on the base sheet, including: plural tension rolls including a first roll; an endless; a second roll; and a heating source, the recording sheet, in which provided that a surface temperature of the first roll is represented by Tn [° C.], a Vicat softening temperature of the polyolefin resin is represented by Tv [° C.], and a time required for the recording sheet to pass through the nip portion is represented by t [sec], the following relationship is established: (Tv+55)×(1+{fraction (1/100)} t)?Tn?(Tv+20)/(1+{fraction (1/100)} t) [° C.].
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: July 19, 2005
    Assignees: Fuji Xerox Co., Ltd., Fuji Photo Film Co., Ltd.
    Inventors: Yoshio Kanesawa, Ashita Murai
  • Patent number: 6918978
    Abstract: There is provided a process for producing a seamed, flexible electrostatographic imaging member belt comprising providing a flexible, substantially rectangular, electrostatographic imaging sheet having a first major exterior surface opposite and parallel to a second major exterior surface and a first marginal end region of said sheet opposite and parallel with a second marginal end region; shaping said first marginal end region at an angle to form a first new sloping surface between the first major exterior surface and the second major exterior surface; shaping said second marginal end region at an angle to form a second new sloping surface between the first major exterior surface and the second major exterior surface, wherein the second new sloping surface is substantially parallel with the first new sloping surface; forming the sheet into a loop and overlapping said first new sloping surface with said second new sloping surface to form a mated region; and, joining said first new sloping surface to said seco
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: July 19, 2005
    Assignee: Xerox Corporation
    Inventor: Robert C. U. Yu
  • Patent number: 6919974
    Abstract: The image reading device of the present invention reads images by using a visible light and an invisible light that are generated by a single light source. The fluorescent lamp is provided with a pair of internal electrodes and a pair of external electrodes. It generates a visible light with a higher intensity than an infrared light when switching a feeder circuit on to generate a discharge between the external electrodes. On the other hand, it generates an infrared light with a higher intensity than a visible light when switching another feeder circuit on to generate a discharge between the internal electrodes. Therefore, the fluorescent lamp has a reading mode using the visible light, and a reading mode using the infrared light. And, a lamp controller selectively switches the emission mode of the fluorescent lamp.
    Type: Grant
    Filed: November 22, 1999
    Date of Patent: July 19, 2005
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Hirokazu Ichikawa, Hidekazu Imai, Yoshiya Imoto, Michio Kikuchi
  • Patent number: 6919154
    Abstract: A photoconductive imaging member containing a supporting substrate, a photogenerating layer, a charge transport layer, and in contact with the charge transport layer comprised of a polymer and a yellow dye of the formula
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: July 19, 2005
    Assignee: Xerox Corporation
    Inventors: Timothy J. Fuller, Satchidanand Mishra, John F. Yanus, Anthony M. Horgan, Geoffrey M. T. Foley, Huoy-Jen Yuh, Dale S. Renfer, Yuhua Tong, Kenny-Tuan T. Dinh, Markus R. Silvestri, John F. Graham
  • Patent number: 6920250
    Abstract: Image representation is performed by dividing a source image into foreground, background and selector planes. The foreground plane is selected to contain mainly line type art or textual type information, the background plane mainly contains image data, and the selector plane identifies whether the image data is maintained in either a specific plane or a combination of planes. A color is selected, by averaging or selecting an appropriate value based on overflow or other criteria, to replace each color in the foreground plane. Error in portions of the foreground plane resulting from replacing foreground colors is fed into corresponding portions of the background plane. Each plane is then compressed using compression schemes appropriate for the type of data maintained in each plane (LZW for the foreground, and JPEG for the background and lossless fax LLITT, for example).
    Type: Grant
    Filed: March 4, 1999
    Date of Patent: July 19, 2005
    Assignee: Xerox Corporation
    Inventors: Doron Kletter, Donald James Curry
  • Patent number: D507577
    Type: Grant
    Filed: July 16, 2004
    Date of Patent: July 19, 2005
    Assignee: Xerox Corporation
    Inventors: Karen Totten, Shane Jewitt, Marc J. Krolczyk
  • Patent number: RE38758
    Abstract: This invention provides self-clocking glyph shape codes for encoding digital data in the shapes of glyphs that are suitable for printing on hardcopy recording media. Advantageously, the glyphs are selected so that they tend not to degrade into each other when they are degraded and/or distorted as a result, for example, of being photocopied, transmitted via facsimile, and/or scanned-in to an electronic document processing system. Moreover, for at least some applications, the glyphs desirably are composed of printed pixel patterns containing nearly the same number of ON pixels and nearly the same number of OFF pixels, such that the code that is rendered by printing such glyphs on substantially uniformly spaced centers appears to have a generally uniform texture. In the case of codes printed at higher spatial densities, this texture is likely to be perceived as a generally uniform gray tone.
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: July 19, 2005
    Assignee: Xerox Corporation
    Inventors: Dan S. Bloomberg, David L. Hecht, Robert F. Tow, L. Prasadam Flores