Patents Assigned to Xerox
  • Patent number: 6971100
    Abstract: Temporary states are used transitionally in run-time situations and are unknown to the object database. A temporary state is created if, when an object is performing a requested event, interim work needs to be performed before the object reaches a permanent destination state. Use of a temporary state is transparent to the caller of the requested event.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: November 29, 2005
    Assignee: Xerox Corporation
    Inventors: Sang W. Kim, David P. Nesbitt, Steve A. Okamoto, Jennifer D. Thomas
  • Patent number: 6969160
    Abstract: A toner gating apparatus for supplying toner through an aperture to a gas channel having a propellant stream. The toner gating apparatus has a traveling wave grid having electrodes. A first gating electrode is located proximate a first side of the aperture. A second gating electrode is located proximate a second side of the aperture. A third gating electrode is located in the gas channel. A first voltage source having a first phase is connected to both the first gating electrode and a first electrode of the travelling wave grid. A second voltage source having a second phase is connected to both the second gating electrode and a second electrode of the travelling wave grid. A third voltage source having a third phase is connected to both the third gating electrode and a third electrode of the travelling wave grid.
    Type: Grant
    Filed: July 28, 2003
    Date of Patent: November 29, 2005
    Assignee: Xerox Corporation
    Inventors: Meng H. Lean, John J. Ricciardelli, Michael J. Savino, Osman T. Polatkan, Fred R. Stolfi, Eric Lindale
  • Patent number: 6969759
    Abstract: Disclosed is a colorant composition of the formula wherein R is an alkyl group, an aryl group, an arylalkyl group, or an alkylaryl group, and wherein R can be joined to the phenyl moiety to form a ring, R? is an aromatic- or heteroaromatic-containing group, each Ra, independently of the others, is a halogen atom, an alkyl group, an alkoxy group, a nitrile group, a nitro group, an amide group, or a sulfonamide group, w is an integer of 0, 1, 2, 3, or 4, n is an integer representing the number of carbon atoms in each repeat alkylene oxide unit, and x is an integer representing the number of repeat alkylene oxide units, wherein said colorant has no more than one —OH, —SH, or primary or secondary amino group per molecule.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: November 29, 2005
    Assignee: Xerox Corporation
    Inventors: Jeffery H. Banning, Donald R. Titterington, Clifford R. King
  • Patent number: 6970258
    Abstract: Utilization of non-printing high-spatial-frequency auxiliary pixels are introduced into the bitmap of a font to obtain local control of the text 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 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 font so that the desired printing pixels will print as intended.
    Type: Grant
    Filed: July 27, 1999
    Date of Patent: November 29, 2005
    Assignee: Xerox Corporation
    Inventors: Robert J. Meyer, Allen T. Retzlaff, Jr.
  • Patent number: 6971017
    Abstract: A document server residing on a network behind a firewall provides secure access to documents or services residing thereon. A first user outside the firewall communicates with the document server over an established first secure session to generate a token in a database of tokens on the document server. The first user digitally signs the public key of a second user and an identifier of the token. The first user transmits a URL token to the second user that identifies the location of the document server and the token identifier. When the second user outside the firewall redeems the URL token at the document server, the document server and the second user establish a second secure session. The document server authenticates the URL token against the second secure session before providing the second user with access to the document or service.
    Type: Grant
    Filed: April 16, 2002
    Date of Patent: November 29, 2005
    Assignee: Xerox Corporation
    Inventors: Mark Stringer, Elisabeth Soutloglou, Diana K. Smetters
  • Publication number: 20050260460
    Abstract: A secondary battery comprising a power generating part and a charging part, wherein the power generating part comprises an acidic medium in which a first electrode is disposed and a basic medium in which a second electrode is disposed; the acidic medium and the basic medium are disposed adjacent to each other; at least one of the acidic medium or the basic medium includes at least one reactive substance; and the charging part comprises a reactive substance regenerating device which regenerates the reactive substance from power-generation products produced by electric power generation in the power generating part.
    Type: Application
    Filed: November 15, 2004
    Publication date: November 24, 2005
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kentarou Kishi, Kei Shimotani, Tomoko Miyahara, Shinji Hasegawa, Yoshio Nishihara
  • Publication number: 20050259871
    Abstract: A manual windowing with auto-segmentation assistance method and system are disclosed that include defining manual tags to be assigned to one or more windows via a tag selection module, assigning the defined manual tags to the one or more windows via a manual tag assignment module and auto-segmenting the one or more windows within the display medium by producing auto-segmentation tags via the auto-segmentation module. Furthermore the method and system according to this invention provide for mapping tags to the auto-segmentation tags via a tag mapping module and merging the manual tags and the auto-segmentation tags via a merging module.
    Type: Application
    Filed: May 24, 2004
    Publication date: November 24, 2005
    Applicant: XEROX CORPORATION
    Inventors: Xing Li, John Seward, Mihai Cuciurean-Zapan, Gene Nitschke
  • Publication number: 20050262394
    Abstract: A failure diagnosis method diagnoses a failure occurring in a diagnosis target apparatus including a drive mechanism having a drive member that receives power supply to operate and a power transmission member that transmits drive force of the drive member to another member. The method includes automatically acquiring by a sensor an operation state signal indicating an operation state during the drive mechanism operating for a predetermined period; and analyzing the automatically acquired operation state signal based on a failure probability model, which is obtained by modeling a cause of failure occurring in the diagnosis target apparatus with using probabilities, to execute failure diagnosis with respect to each of constituent members of the drive mechanism.
    Type: Application
    Filed: February 23, 2005
    Publication date: November 24, 2005
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kaoru Yasukawa, Kouji Adachi, Kouki Uwatoko, Norikazu Yamada, Eigo Nakagawa, Tetsuichi Satonaga
  • Patent number: 6967762
    Abstract: A plurality of cells are set apart by a spacer member between a display plate and a rear face plate. Black particles with positive static charge and white particles with negative static charge are dispersed in a dispersion fluid, which is enclosed in the cells. A red colored layer and electrodes 7a, 7b and 7c are formed at the rear face plate. When a voltage of +50 V is applied to the electrode 7a, 0 V to 7b and ?50 V to 7c, the black particles move to the electrode 7c, the white particles move to the electrode 7a, and red can be viewed. When a voltage of +50 V is applied to the electrode 7a, 0 V to 7b and +50 V to 7c, the white particles move to the electrode 7a, the black particles move to the electrode 7b, and black can be viewed. When a voltage of ?50 V is applied to the electrode 7a, 0 V to 7b and ?50 V to 7c, the black particles move to the electrode 7c, the white particles move to the electrode 7b, and white can be viewed.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: November 22, 2005
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yoshinori Machida, Yasufumi Suwabe, Yoshiro Yamaguchi, Motohiko Sakamaki, Takeshi Matsunaga, Kiyoshi Shigehiro
  • Patent number: 6967385
    Abstract: In order to that stress generated within a resin can be suppressed and cracking in the resin can be prevented, an ink jet recording head comprising a substrate; a resin body, which defines an ink discharge section, formed on the substrate; and a heating resistor provided on the substrate, an ink chamber being formed between the heating resistor and the ink discharge section, the resin body being dug down along the ink chamber, is provided.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: November 22, 2005
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Hideki Fukunaga, Hiroyuki Usami, Hiroshi Ikeda
  • Patent number: 6967734
    Abstract: In the Microsoft® Windows 2000™ environment, ports for printers on a network can be created using an AddPort command and XcvData function. By placing pointers within XcvData to data structures, the process of adding ports can be made largely invisible to a user.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: November 22, 2005
    Assignee: Xerox Corporation
    Inventors: Michael H. Wang, Steven T. Schlonski, Krishna Kumar
  • Patent number: 6967981
    Abstract: A nitride based resonant cavity semiconductor structure has highly reflective mirrors on opposite sides of the active layer. These highly reflective mirrors can be distributed Bragg reflectors or metal terminated layer stacks of dielectric materials. The nitride based resonant cavity semiconductor structure can be vertical cavity surface emitting laser (VCSEL), a light emitting diode (LED), or a photodetector (PD), or a combination of these devices.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: November 22, 2005
    Assignee: Xerox Corporation
    Inventors: Christopher L. Chua, Michael A. Kneissl, David P. Bour
  • Patent number: 6968076
    Abstract: A system is disclosed for detecting defects in a printed image to analyze print quality of printers or copiers. The printed image is scanned by the scanner and the printed image data obtained in the scanner is fed back and compared with original image data. The system detects defects in the printed image in a closed loop manner. The printed image data is automatically fed back to a control unit so that a processor compares the printed image data with the original image data to detect defects in the printed image. The system analyzes comparison results to find skew in the printed image.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: November 22, 2005
    Assignee: Xerox Corporation
    Inventors: William M. OuYang, Jack Whipple
  • Patent number: 6967683
    Abstract: In an imaging device having an array of photosensors, each photosensor being associated with a shift register stage for reading out image signals, there is provided a number of local clock drivers, each local clock driver being associated with a subset of photosensors. A reset flip-flop is associated with each subset of photosensors, and is used to “hand off” shift register activities from one local clock driver to the next as image data is read out. By having a series of local clock drivers, performance problems related to parasitic capacitance on the shift register lines are lessened.
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: November 22, 2005
    Assignee: Xerox Corporation
    Inventor: Scott L. TeWinkle
  • Patent number: 6966706
    Abstract: A light-emitting device includes 16 vertical-cavity surface-emitting laser diodes (VCSELs) disposed like a 4×4 grid, for example, in a sufficiently narrower range than the end surface of an optical fiber. The 16 VCSELs disposed in the light-emitting device emit optical signals in the same direction. Since the VCSELs are disposed with a concentration in the sufficiently narrower range than the end surface of the optical fiber as described above, if the optical signals emitted from the VCSELs are spread, almost all optical signals generated by the light-emitting device are incident on the end surface of the optical fiber and are transmitted through the optical fiber.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: November 22, 2005
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tsutomu Hamada, Shinya Kyozuka, Tomo Baba, Hideo Nakayama
  • Patent number: 6966644
    Abstract: An ink stick for use in a solid ink feed system of a phase change ink printer includes a three dimensional ink stick body that has formed in it guide means. The guide means is formed in a first portion of the ink stick body, for guiding the ink stick along a defined path in the ink stick feed system. An ink stick feed system includes a longitudinal guide rail in a first portion of a feed channel. The width of the longitudinal guide rail is substantially less than the width of the feed channel. The guide means in the ink stick is a longitudinal guide element having a shape that is substantially complementary of the shape of the longitudinal guide rail of the feed channel.
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: November 22, 2005
    Assignee: Xerox Corporation
    Inventors: Brent R. Jones, Frederick T. Mattern
  • Patent number: 6967070
    Abstract: An electrophotographic toner comprising a binder resin and a colorant, which is used in electrophotographic process employing a flash fixing system for fixation of a transferred toner image, wherein the binder resin is a polyester resin which partially contains a chloroform-insoluble content; and the toner contains a polypropylene resin and an ester type structure resin represented by the following formula (I); wherein p, q, m and n each represents a positive integer of 16 to 22 and R may be the same or different and each represents a hydrogen atom or a lower alkyl group having 1 to 4 carbon atoms. The electrophotographic toner is capable of remarkably enhancing the fixation strength of the toner and inhibiting the occurrence of voids during the printing and the occurrence of fuming and odor during the fixation.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: November 22, 2005
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yasushige Nakamura, Toru Takahashi, Tsuneo Watanuki, Norio Sawatari, Seijiro Ishimaru, Yasuyuki Furuse
  • Patent number: 6968100
    Abstract: An optical micro-electro-mechanical system (MEMS) switch is disclosed. In a preferred embodiment the optical MEMS switch is used as an M×N optical signal switching system. The optical MEMS switch comprises a plurality of optical waveguides formed on a shuttle for switching optical states wherein the state of the optical switch is changed by a system of drive and latch actuators. The optical MEMS switch utilizes a latching mechanism in association with a thermal drive actuator for aligning the waveguide shuttle. In use the optical MEMS switch may be integrated with other optical components to form planar light circuits (PLCs). When switches and PLCs are integrated together on a silicon chip, compact higher functionality devices, such as Reconfigurable Optical Add-Drop Multiplexers (ROADMs), may be fabricated.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: November 22, 2005
    Assignee: Xerox Corporation
    Inventors: Joel A. Kubby, Kathleen A. Feinberg, Kristine A. German, Peter M. Gulvin, Jun Ma, Pinyen Lin
  • Patent number: 6967978
    Abstract: In a semiconductor laser driving device using a voltage drive system, a drive current of a semiconductor laser is controlled by a drive current control circuit so that a light intensity of light beam emitted from the semiconductor laser is equal to a predetermined light intensity. In a drive voltage control circuit, the drive voltage applied to the semiconductor laser at the time of switching off the semiconductor laser LD is set on the basis of the detected voltage (terminal voltage).
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: November 22, 2005
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Masao Ohmori
  • Patent number: D511790
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: November 22, 2005
    Assignee: Xerox Corporation
    Inventor: Kenneth J. Rieck