Abstract: A photosensitive imaging device for recording images across the entire visible spectrum includes a set of photosensors which have a peak response around the orange part of the spectrum, about 600 nm. The peak response is obtained by combining responses of, in one case, photosensors associated with a filter which admits red or infrared wavelengths and longer and photosensors associated with a filter which admits orange wavelengths and longer. In another case, the photosensor is structured to attenuate longer wavelengths, which, in combination with a filter which admits orange and longer wavelengths, can simulate a peak behavior around the orange part of the spectrum.
Type:
Grant
Filed:
April 24, 2001
Date of Patent:
November 11, 2003
Assignee:
Xerox Corporation
Inventors:
Paul A. Hosier, Jagdish C. Tandon, Josef E. Jedlicka, Gaurav Sharma, Alain E. Perregaux, Robert P. Herloski
Abstract: Method and system to enable a user to view large collections of linked information on a computer based display. A visualization is created which presents a representation of the complete collection of information on the display. The visualization fits completely within a fixed area of the computer-based display, negating the need to scroll information into the display area. The visualization is based on identified focus nodes and through calculation of a Degree of Interest (DOI) for each of the nodes based in the structure. Layout and presentation of the visualization structure is based on the DOI values in combination with considerations of available display space. A user may dynamically manipulate views of the structure by selecting one or more focus nodes, thus causing a recalculation of the degree of interest.
Abstract: The present invention relates to an intermediate transfer member having a polyimide resin film containing oxidized carbon black; and an image forming apparatus comprising an intermediate transfer member having a polyimide resin film containing oxidized carbon black.
Abstract: In a printing system with multiple printheads, a spot of ink is created on a recording medium using up to N drops of ink fired from an ejector of one of the printheads. Each printhead has an array of ejectors. A single power supply drives the ejectors of the multiple printheads. Each of the printheads delivers a single color such as cyan, magenta, yellow, or black. A memory, which is coupled to the multiple printheads, records a printfile. Values in the printfile record channel values. Each channel value specifies how many drops of ink to deliver onto the recording medium over a spot cycle. The spot cycles of the multiple printheads, which consist of one to N actuation intervals, are desynchronized by operating the spot cycles out of phase with each other. The spot cycles of two printheads, for example, are desynchronized by beginning the spot cycle of one printhead a non-multiple of N drops prior to beginning the spot cycle of the other printhead.
Abstract: An out-of-plane micro-structure which can be used for on-chip integration of high-Q inductors and transformers places the magnetic field direction parallel to the substrate plane without requiring high aspect ratio processing. The photolithographically patterned coil structure includes an elastic member having an intrinsic stress profile. The intrinsic stress profile biases a free portion away from the substrate forming a loop winding. An anchor portion remains fixed to the substrate. The free portion end becomes a second anchor portion which may be connected to the substrate via soldering or plating. Alternately, the loop winding can be formed of two elastic members in which the free ends are joined in mid-air. A series of individual coil structures can be joined via their anchor portions to form inductors and transformers.
Type:
Grant
Filed:
May 20, 2002
Date of Patent:
November 11, 2003
Assignee:
Xerox Corporation
Inventors:
David K. Biegelson, Christopher L. Chua, David K. Fork
Abstract: Certain designs of paper feeding devices used in copiers and printers require that an edge of a stack of sheets be in close contact with a slanted surface. An apparatus engages an opposite edge of the stack to urge the stack against the slanted surface, so that the stack assumes a parallelogram shape. The apparatus includes a plate which is movable from a vertical, upright position to a slanted position. Means are provided to cause the plate to move to the slanted position in response to the closing of a paper tray of a printer or copier.
Type:
Grant
Filed:
December 20, 2001
Date of Patent:
November 11, 2003
Assignee:
Xerox Corporation
Inventors:
Christopher Pearce, Jeffery W. Ryan, Brian Martin, Andy K. Balm
Abstract: In a photosensitive device wherein a photodiode is operated by placing an initial fat zero charge thereon before the integration of a light-induced signal, the actual dark level signal created by the fat zero charge is sampled with each readout from the photodiode, and then retransferred to the photodiode. After integration, the sampled dark level is subtracted from the total signal level on the photodiode. In this way both fixed-pattern and thermally-induced noise is obviated.
Abstract: A method for scanning a document includes: acquiring scanned image data from a first region of the document; determining an initial estimate of a document attribute using pixels in the first region; acquiring scanned image data from a second region of the document; processing pixels in the second region in accordance with the initial estimate; determining a second estimate of the document attribute using selected pixels in the second region; determining if the initial estimate is valid and if not, processing pixels within the image in accordance with the second estimate.
Type:
Grant
Filed:
December 4, 2000
Date of Patent:
November 11, 2003
Assignee:
Xerox Corporation
Inventors:
Leon C. Williams, Elizabeth A. Richenderfer
Abstract: A method for developing an electrostatic image including contacting the image with at least one magnetic brush including (a) a rotating magnetic core of a preselected magnetic field strength, (b) an outer nonmagnetic shell, (c) An electrographic, two-component dry developer composition comprising charged toner particles and oppositely charged binder-free carrier particles which (a) include: an alloy of a soft magnetic material exhibiting a coercivity of at least 300 gauss when magnetically saturated, exhibit an induced magnetic moment of less than 20 EMU/gm of carrier when in an applied field of 1000 gauss and (b) a hard magnetic material exhibiting a coercivity of at least 300 gauss when magnetically saturated, exhibit an induced magnetic moment of at least 20 EMU/gm of carrier when in an applied field of 1000 gauss and which magnetic moment is sufficient to prevent the carrier from transferring to the electrostatic image, the toner and carrier particles in the developer having a triboelectric force of attra
Type:
Application
Filed:
March 27, 2003
Publication date:
November 6, 2003
Applicant:
Xerox Corporation
Inventors:
Robert J. Meyer, Dale R. Mashtare, John F. Knapp
Abstract: A method and apparatus for facilitating communication about a document between two users creates autonomous, animated computer characters, or avatars, which are then attached to the document under discussion. The avatar is created by one user, who need not be the author of the document, and is attached to the document to represent a point of view. The avatar represents the physical likeness of its creator. The avatar is animated, using an avatar scripting language, to perform specified behaviors including pointing, walking and changing facial expressions. The avatar includes audio files that are synchronized with movement of the avatar's mouth to provide an audio message.
Type:
Application
Filed:
September 13, 2002
Publication date:
November 6, 2003
Applicant:
Fuji Xerox Co., LTD.
Inventors:
Timothy W. Bickmore, Joseph W. Sullivan, Elizabeth F. Churchill, Sara A. Bly, Linda K. Cook
Abstract: An apparatus and process for reducing accumulation of toner from the surface of an electrode member in a development unit of an electrostatographic printing or copying apparatus by providing an organometallic coating composition including an organometallic material on at least a portion of the electrode member.
Abstract: A sheet separation and feeding system for measuring substrate bending stiffness and thereby basis weight on a real time basis. Provided is a corrugator having a plurality of parallel ribs, with one or more sheets of the substrate provided below the corrugator wherein a predetermined gap exists between a topmost sheet of the sheets and the corrugator. A vacuum is applied between the corrugator and the topmost sheet, wherein the vacuum is sufficiently large to raise the topmost sheet, thereby deflecting and bending it into a profile corresponding to the arrangement and size of the corrugator ribs and bending stiffness of the substrate. One or more sensors are provided for measuring the deflection of the topmost sheet. The vacuum, an air knife output and/or a fluffer output are then adjusted according to predetermined rules and the measured deflection.
Abstract: A trusted system having at least one repository for controlling use of digital works in accordance with usage rights associated with the digital works. A request to use a digital work in accordance with usage rights associated with the digital work is received. The usage rights specify a manner of use and an access specification indicating a security class. A security level of a repository controlling the requested use is determined. The request is granted and the user is permitted to exercise the manner of use specified in the usage rights associated with the digital work if the security level of the repository corresponds to the security class of the access specification specified in the usage rights associated with the digital work.
Abstract: A system is provided for improving security during data transfer. A transmitter side transfer controller (12) divides data to be transferred into a plurality of pieces, removes a portion of data from each piece and encrypts the piece, and uploads each encrypted piece to different relay servers (22) on the Internet (20). The transmitter side transfer controller (12) also provides a receiver side transfer controller (12) information indicating which piece is uploaded to which relay server (22) using a secure communication protocol. The data of the fragment removed from each piece is transmitted to the receiver side transfer controller (12) separately from the encrypted pieces. The receiver side transfer controller (12) downloads the encrypted pieces each uploaded to the relay server (22), decodes the encrypted pieces, complements the decoded data with the data of the fragment to restore the state before the removal, and assembles the restored pieces to obtain the original data to be transferred.