Patents Assigned to Xerox
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Patent number: 5995262Abstract: A signal transmission bus comprising a plurality of optical transmission layers and optical isolation layers stacked alternately. Each of the optical transmission layers has signal light input thereinto and propagating the input signal light diffusedly. Each of the optical isolation layers prevents the mixing of the signal light between any two adjacent optical transmission layers. At least one of the optical isolation layers comprises electrical wiring for transmitting electrical signals.Type: GrantFiled: December 3, 1996Date of Patent: November 30, 1999Assignee: Fuji Xerox Co., Ltd.Inventors: Masaki Hirota, Kenji Kawano, Masahiro Taguchi, Junji Okada, Masao Funada, Takashi Ozawa
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Patent number: 5995802Abstract: An image forming apparatus which forms toner images of different colors by at least one image forming device with a rotatably driven image bearing member, and forms a picture by transferring the different colored toner images formed by the image forming device onto an image transfer medium supported on a rotatably driven endless bearing member, or directly onto the endless bearing member,the image forming apparatus wherein a latent image writing position on the image bearing member being angularly spaced by approximately 180.degree.Type: GrantFiled: July 1, 1997Date of Patent: November 30, 1999Assignee: Fuji Xerox Co., Ltd.Inventors: Hirotaka Mori, Ryo Ando
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Patent number: 5995996Abstract: A system and method for pipelined data processing emulates multi-tasking pipelined data processing in a single tasking environment. A host application running in the single tasking environment creates a pipeline of linked data processing tasks to process data from the host application and to provide the processed data to an output device. After all tasks of the pipeline are created the host application invokes the pipeline to send data to the output device.Type: GrantFiled: January 30, 1997Date of Patent: November 30, 1999Assignee: Xerox CorporationInventor: Dennis L. Venable
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Patent number: 5995716Abstract: In a color-management system, such as for a color digital printer, digital codes describing combinations of two colors are retained in a specific format. The three primary-color stimuli forming each color of the color pair are described as binary numbers, and the binary numbers are combined to yield a single orderable number. With this format, codes describing color pairs can be readily retained in a searchable table, preferably an AVL-balanced tree.Type: GrantFiled: January 21, 1997Date of Patent: November 30, 1999Assignee: Xerox CorporationInventors: Steven J. Harrington, R. Victor Klassen, Stephen C. Morgana
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Patent number: 5995723Abstract: A client subsystem is provided for use with a network printing system including a client communicating with one or more of a plurality of print-related devices by way of a network connection. An electronic document is developed at the client and placed into a printable format with a print driver. The electronic document in the printable format includes a set of attributes respectively corresponding with a set of attribute values, the set of attribute values controlling a manner in which the electronic document is to be processed at a selected one of the plurality of print-related devices. The client subsystem includes a document routing system, communicating with the print driver and a spooler, for facilitating transmission of the electronic document in the printable format from the print driver to the spooler.Type: GrantFiled: November 18, 1997Date of Patent: November 30, 1999Assignee: Xerox CorporationInventors: Robert H. Sperry, Anthony E. Audi, Luke E. Burgess, Mitsuhiro Kajitani, Kiyoshi Kamishima
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Patent number: 5994425Abstract: Disclosed is an improved composition comprising a photopatternable polymer containing at least some monomer repeat units with photosensitivity-imparting substituents, said photopatternable polymer being of the general formula ##STR1## wherein x is an integer of 0 or 1, A is one of several specified groups, such as ##STR2## B is one of several specified groups, such as ##STR3## or mixtures thereof, and n is an integer representing the number of repeating monomer units. Also disclosed is a process for preparing a thermal ink jet printhead with the aforementioned polymer and a thermal ink jet printhead containing therein a layer of a crosslinked or chain extended polymer of the above formula.Type: GrantFiled: August 29, 1996Date of Patent: November 30, 1999Assignee: Xerox CorporationInventors: Ram S. Narang, Timothy J. Fuller, Thomas W. Smith, David J. Luca, Ralph A. Mosher
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Patent number: 5994458Abstract: A process for the preparation of a latex comprising the polymerization of monomer in the presence of a chain transfer component, an initiator, a diphenyloxide disulfonate, and an optional nonionic surfactant.Type: GrantFiled: September 2, 1998Date of Patent: November 30, 1999Assignee: Xerox CorporationInventors: Chieh-Min Cheng, Grazyna E. Kmiecik-Lawrynowicz
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Patent number: 5994020Abstract: A toner process which comprises mixing(i) a colorant dispersion, and a(ii) a nonionic surfactant, an ionic surfactant or mixtures thereof, with(iii) a latex comprised of resin and a mixture of anionic surfactant and a nonionic surfactant;(iv) heating the resulting blend of (iii) about equal to, or below about the glass transition temperature (Tg) of the resin; and(v) optionally adding additional anionic surfactant to the resulting aggregated suspension of (iv);(vi) heating the resulting mixture of (v) about equal to, or above about the Tg of the resin and(vii) isolating the toner.Type: GrantFiled: April 13, 1998Date of Patent: November 30, 1999Assignee: Xerox CorporationInventors: Raj D. Patel, Michael A. Hopper, Paul F. Smith, Beng S. Ong, Allan K. Chen
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Patent number: 5995796Abstract: A film component having a) a haloelastomer with halogenated monomers, polyorganosiloxane monomers, or both halogenated and polyorganosiloxane monomers, and b) a doped metal oxide, preferably antimony doped tin oxide, dispersed therein, wherein the film component is useful as components in xerographic processes.Type: GrantFiled: January 8, 1998Date of Patent: November 30, 1999Assignee: Xerox CorporationInventors: Edward L. Schlueter, Jr., Joseph Mammino, Gerald M. Fletcher, Donald S. Sypula, James F. Smith, Lucille M. Sharf, Robert M. Ferguson
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Patent number: 5995623Abstract: The present invention provides an information processing apparatus which comprises separating means for separating inputted data into identification data and data to be encrypted, determination means for determining an encryption method specified by a combination of an encryption key and an encryption algorithm in accordance with the identification data separated by the separating means, encryption means for encrypting the data to be encrypted by utilizing the encryption method determined by the determination means and generating encrypted data having the number of bits same as that of the data to be encrypted, and locating means for locating the identification data showing the encryption method used for encrypting the data to be encrypted in a predetermined position in the encrypted data.Type: GrantFiled: January 27, 1997Date of Patent: November 30, 1999Assignee: Fuji Xerox Co., Ltd.Inventors: Kenji Kawano, Masahiro Taguchi, Kazuo Saito
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Patent number: 5995776Abstract: An online printing parameter establishment apparatus is used with a xerographic printing device for printing high quality prints given a target value. The xerographic printing device is capable of producing at least one print control patch on a photoreceptor and is capable of sensing a value of the at least one print control patch. The xerographic printing device has a plurality of sets of inherent performance characteristic values. The online printing parameter establishment apparatus includes a controller device and a switch device. The controller device is operative to produce a first database of different ones of the sensed values. Each sensed value is associated with a respective one of the plurality of sets of inherent performance characteristic values based upon the target value. The controller device is also operative to produce a second database of a plurality of control values.Type: GrantFiled: May 22, 1998Date of Patent: November 30, 1999Assignee: Xerox CorporationInventors: Lingappa K. Mestha, Yao Rong Wang, John Buranicz, Meera Sampath, Mark A. Scheuer
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Patent number: 5995660Abstract: The present invention has an object to determine whether image data is generated by data processing such as PDL, or optically captured scan-in image, for each area.To achieve the object, a determining table is provided for distribution patterns of pixels having substantially the same pixel value for image data area composed of plural pixels. Then a reference area designating unit designates a reference area by selecting from input image data the pixel of interest having a pixel value and the reference pixels surrounding thereof. A same pixel value distribution generating unit compares the pixel value of the pixel of interest with the pixel values of the reference pixels in the reference area to generate a distribution pattern of the pixel having substantially the same pixel value. Next, a determining unit compares the generated distribution pattern with the distribution patterns held in the determining table to determine the reference area to be the image data generated by data processing.Type: GrantFiled: July 9, 1997Date of Patent: November 30, 1999Assignee: Fuji Xerox Co., LtdInventors: Akihiro Andoh, Shunichi Kimura, Shinji Shishido, Yutaka Koshi
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Patent number: 5994017Abstract: A toner composition comprised of resin, colorant, wax, and an acrylatealkylene polymer compatibilizer.Type: GrantFiled: March 1, 1999Date of Patent: November 30, 1999Assignee: Xerox CorporationInventor: Pinyen Lin
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Patent number: 5995267Abstract: A time division multiplexed laser emits two beams of the same wavelength but orthogonal polarization or two beams of different wavelengths from a single laser source for use in a multiple beam raster output scanning system. The multiple beam raster output scanning is obtained from a single raster scanning system (ROS) with a rotating mirror, beneficially a polygon mirror, and a single set of scan optics for use in single or multiple station printers. A plurality of the coaxially overlapping laser beams from the same laser source are deflected using a common mirror surface area and laser beams containing different channels of data signals are subsequently separated by a plurality of dynamic and static beam separators based on polarization or wavelength. The channels of the separated laser beams are directed onto associated photoreceptors.Type: GrantFiled: January 30, 1998Date of Patent: November 30, 1999Assignee: Xerox CorporationInventor: Thomas L. Paoli
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Patent number: 5996002Abstract: A collaborative work support system that is performed on plural computers each of which is assigned for an operator, and supports collaborative work in which the plural computers display common data and each operator operates the displayed common data through his own computer. The collaborative work support system includes: a shared data storage for storing shared data to be displayed on each computer; an individual data storage for storing individual data, which is individually created by a specific operator and individually displayed on any of the computers; an individual data sender for sending the individual data to other computers in response to a command from the specific operator who created the individual data so as to display the individual data on other computers as created shared data; and a manager for managing so that the individual data is stored in the shared data storage with other data associated with the individual data as a unit of storage.Type: GrantFiled: July 23, 1997Date of Patent: November 30, 1999Assignee: Fuji Xerox Co., Ltd.Inventors: Hiroshi Katsurabayashi, Satoshi Ichimura
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Patent number: 5994835Abstract: A thin film organic light emitting diode with edge emitter waveguide comprises, in sequence, a substrate, a waveguide, an anode, a hole transport layer, an electroluminescent layer, an electron injection layer and a cathode. Voltage applied between the anode and cathode causes the electroluminescent layer to emit light through the hole transport layer and the anode into the waveguide where the light is internally reflected within the waveguide and propagates through the length of the waveguide to be emitted through the edge of the waveguide. The electron injection layer also functions as a cladding layer to increase the efficiency of the waveguide. The non-emission edge of the waveguide may be sloped with a conductor layer to the anode and a conductor layer to the cathode forming a reflective surface to the non-emission edge.Type: GrantFiled: January 13, 1997Date of Patent: November 30, 1999Assignee: Xerox CorporationInventors: James M. Wilson, David K. Fork
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Patent number: 5995721Abstract: There is provided a document processing system including at least one document reproduction apparatus and managing on-demand output of a document job. The document job is characterized by a set of job attributes with each job attribute relating to a manner in which the document job is to be processed by the document processing system. The document processing system, which further includes a document server for managing conversion of the document job into the on-demand output, includes: a plurality of queues mapped to a plurality of document processing subsystems, each of the plurality of queues including a set of queue attributes characterizing the extent to which each document processing subsystem mapped to one or more of the plurality of queues is capable of processing a job portion delivered to the one or more queues. The document processing system further includes a queue utility communicating with the plurality of queues.Type: GrantFiled: June 16, 1997Date of Patent: November 30, 1999Assignee: Xerox CorporationInventors: John L. Rourke, Steven A. Graham
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Patent number: 5995773Abstract: A postprocessing system having a system cabinet coupled to a copier main body through a coupling section, a postprocessing unit placed in the system cabinet so that it can be moved up and down, and a cover attached to the front of the system cabinet so that it can be opened and closed. When a paper jam occurs, the user can open the cover to open the inside of the system cabinet and remove jammed paper.Type: GrantFiled: July 2, 1998Date of Patent: November 30, 1999Assignee: Fuji Xerox Co., Ltd.Inventor: Hiroaki Awano
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Patent number: 5995775Abstract: A method to provide a highly intelligent, automated diagnostic system that identifies the need to replace specific parts to minimize machine downtime rather than require extensive service troubleshooting. In particular, a systematic, logical test analysis scheme to assess machine operation from a simple sensor system and to be able to pinpoint parts and components needing replacement is provided by a series of first level of tests by the control to monitor components for receiving a first level of data and by a series of second level of tests by the control to monitor components for receiving a second level of data. Each of the first level tests and first level data is capable of identifying a first level of part failure independent of any other test. Each of the second level tests and second level data is a combination of first level tests and first level data or a combination of a first level test and first level data and a third level test and third level data.Type: GrantFiled: March 5, 1998Date of Patent: November 30, 1999Assignee: Xerox CorporationInventors: Roger W. Budnik, James M. Pacer, Guru B. Raj, Ralph A. Shoemaker, Michael G. Swales, Michael E. Beard
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Patent number: 5995780Abstract: An electrostatic filtering system which allows a steady flow of air into a development housing and prevent toner emission therefrom. The system is used in an apparatus for developing a latent image recorded on a surface includes the housing having a supply of toner therein; a donor member arranged in the housing to transport toner to a development zone adjacent the surface; and electrode for detaching toner from the donor member and produce a toner cloud in the development zone; and an air handling system, associated with the housing, for generating a negative air stream in the housing, the air handling system including the electrostatic filtering system for removing the toner from the negative air stream. The electrostatic filtering system includes a baffle mounted in the housing in the negative air stream and a high voltage DC for applying a bias to the baffle thereby creating an electrostatic field between the baffle and the developer for collecting toner emission.Type: GrantFiled: October 30, 1998Date of Patent: November 30, 1999Assignee: Xerox CorporationInventor: William H. Wayman