Patents Assigned to Xerox
  • Method and system for noise level detection in image data
    Patent number: 8090215
    Abstract: A system determines the noise level of image data by high pass filtering image data. Absolutes values of the high pass filtered image data are determined. Thereafter, multiple mean values for absolute values less than a predetermined number of threshold values are determined. Based upon the determined mean values, a plurality of estimated mean values is calculated, each estimated mean value being calculated from a combination of two determined mean values. The noise of the image is determined from a combination of the minimum estimated mean value and the maximum estimated mean value. This noise can be optionally used by a sigma filter, at Step S740, to sigma filter the image data.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: January 3, 2012
    Assignee: Xerox Corporation
    Inventor: Stuart A. Schweid
  • Image forming apparatus and image forming method
    Patent number: 8087770
    Abstract: An image forming apparatus includes a supply unit that supplies liquid recipient particles to receive liquid; a conveyance unit that conveys the liquid recipient particles supplied by the supply unit; a discharge unit that discharges liquid droplets to the liquid recipient particles conveyed by the conveyance unit; a humidity reducing unit that reduces relative humidity inside or around the supply unit; and a humidity increasing unit, on a downstream side of the supply unit, that increases relative humidity around at least one of the liquid recipient particles conveyed by the conveyance unit and the discharge unit.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: January 3, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Masashi Hiratsuka, Ken Hashimoto
  • Closing member for a developer containing device and method for producing such device
    Patent number: 8090302
    Abstract: A developer containing device includes: a developer container having an opening through which developer can be filled in; a closing member that is removably installed to the developer container to close the opening; a stirring and feeding member that is rotatably supported in the closing member and stirs and feeds the developer contained in the developer container by rotating in one direction; and a fitting part that fixes the closing member to the developer container by rotating the closing member in the same direction as the rotational direction of the stirring and feeding member.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: January 3, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kazunori Koshimori, Hirokazu Murase, Tsutomu Uezono, Takashi Hino, Koichi Tanaka
  • Custom application fuser roller system
    Patent number: 8090273
    Abstract: A fuser roller system, utilized with electrographic or xerographic copying or printing devices, multiple fuser rollers, each of which includes a machine readable device (MRD) having identification data. The system also includes at least one MRD reader and at least one computer having a database of fuser rollers. The system facilitates use of custom fuser rollers by determining what type of fuser roller is appropriate to run a print job. Then it is determined whether an appropriate fuser roller is installed in the copying or printing device. If an appropriate fuser roller is installed in the copying or printing device, the print job is directed to the device. If an appropriate fuser roller is not installed in the copying or printing device, the appropriate fuser roller is identified using the identification data stored in the MRD and installed in the device.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: January 3, 2012
    Assignee: Xerox Corporation
    Inventor: John E. Derimiggio
  • Continuous paper feed device, image forming apparatus, continuous paper feeding method and computer readable media storing program
    Patent number: 8090308
    Abstract: A continuous paper feed device includes a paper feed unit that feeds continuous paper to an image output part; a slack forming unit that forms a slack of continuous paper on a paper transport path; a detecting unit that detects a remaining amount of continuous paper; a cutting unit that cuts the continuous paper; and a cutting controller that controls the cutting unit to cut the continuous paper during a time taken to tighten the slack formed, when paper more than a predefined value which has been set beforehand is transported, and if the remaining amount of paper detected by the detecting unit is more than a threshold value, the cutting controller performing control operation including reducing a length of a slack formed by the slack forming unit and transporting the continuous paper, followed by forming a slack again by the slack forming unit.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: January 3, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Keiji Itoh
  • Dual blade release agent application apparatus
    Patent number: 8087771
    Abstract: A application apparatus for metering release agent onto an image forming device moving surface, such as a Solid Ink Jet drum. The application apparatus includes a blade positioning mechanism with first and second links each having three pivot connections for pivotally connecting first and second blades together in mutually exclusive cooperative movement alternating between a common working position at a first location and respective suspended positions. The application apparatus can include a doctor blade arrangement in which the blades are disposed in a doctor blade orientation in the working position. The application apparatus can include a wiper blade arrangement in which the blades are disposed in a wiper blade orientation in the working position. The first and second blades form similar blade holder angles, blade deflection angles and Working Angles when occupying the working position.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: January 3, 2012
    Assignee: Xerox Corporation
    Inventors: Bruce E. Thayer, Richard W. Seyfried
  • Data processing apparatus, data processing method, and computer readable medium
    Patent number: 8088172
    Abstract: A data processing apparatus includes: a determination section that is connected to a storage and determines whether or not the storage is unauthorized; and a fraud handling section that erases information in all area of the storage as a fraud handling processing if the determination section determines that the connected storage is unauthorized.
    Type: Grant
    Filed: January 3, 2007
    Date of Patent: January 3, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Nobukazu Miyoshi
  • Magnetic latent image holding body, process cartridge, and image forming apparatus
    Patent number: 8088458
    Abstract: The present invention provides a magnetic latent image holding body in which the surface thereof has water repellency and a magnetic latent image is visualized by a liquid developer that contains a magnetic toner and an aqueous medium.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: January 3, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yasuaki Watanabe, Ryosaku Igarashi, Keitaro Mori
  • Light-emitting element array with micro-lenses and optical writing head
    Patent number: 8089077
    Abstract: A light-emitting element array with the improvement of the light-emitting efficiency and the improvement of the uneven amount of light is provided. A light-emitting element array comprises a light-emitting portion array consisting of a plurality of light-emitting portions linearly arranged in a main scanning direction, and a micro-lens formed on each of the light-emitting portions, wherein the micro-lens has a shape of the length of a sub-scanning direction different from the length of the main scanning direction, and the length of the sub-scanning direction is longer than the length of the main scanning direction, and is 3.5 times or less of the length of the main scanning direction.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: January 3, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kenjiro Hamanaka, Takahiro Hashimoto
  • Light intensity boost for subpixel enhancement
    Patent number: 8089996
    Abstract: Techniques are disclosed that enable fine features such as serifs and narrow strokes of texts to be produced by xerographic devices, for example. The fine features may be generated by subpixels which are produced when a pulse width used to image a pixel is shorter than a corresponding physical size of a laser beam spot used to write the image on a Xerographic photoreceptor. The laser driver may be modified to drive a light emitting element with a boost current profile that includes an overshoot above a steady state current at a rising edge. The overshoot results in a light intensity time profile that has an increased area for a subpixel.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: January 3, 2012
    Assignee: Xerox Corporation
    Inventors: Shawn Updegraff, William Wayman
  • Document processing apparatus and program
    Patent number: 8090202
    Abstract: A document processing apparatus includes a region extracting unit that extracts a plurality of regions in a document image, a recognition unit that recognizes a character string, a conversion unit that converts the recognized character string, a setting unit that sets first boundary lines that surrounds the document image and at least one second boundary line in a space between adjacent regions of the plurality of regions, an enlargement/reduction unit that moves in parallel at least one line of the first and second boundary lines under a restraint condition that at least one line does not intersect any of the plurality of regions, and enlarges or reduces at least one of the regions in accordance with the parallel movement so long as each region does not get out of a cell; and an insertion unit that inserts the converted character string into each of the regions.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: January 3, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Yuya Konno
  • Ink jet printing depth of focus control apparatus
    Patent number: 8087773
    Abstract: A system for maintaining depth of focus in an ink jet printer between a series of print heads and corrugated media includes a vacuum transport in combination with an acquisition cylinder positioned upstream of the series of print heads in order to help the vacuum transport acquire the corrugated media and work in conjunction with a series of star wheels distributed about and positioned immediately adjacent to each of the series of print heads to suppress cross process direction curl.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: January 3, 2012
    Assignee: Xerox Corporation
    Inventors: Henry T Bober, Linn C Hoover
  • Developer supply device, process cartridge, and image forming apparatus
    Patent number: 8090299
    Abstract: A developer supply device, includes: a developer holder; and a developer reservoir which is disposed inside of the developer holder, holds a liquid developer, and has at least one supply section that supplies the liquid developer from the developer reservoir to the developer holder, the liquid developer including a toner and an aqueous medium, and the developer supply device supplying the liquid developer that has been supplied to the developer holder to a medium which is a supply target for the liquid developer.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: January 3, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Keitaro Mori, Ryosaku Igarashi, Yasuaki Watanabe
  • Overcoat containing titanocene photoconductors
    Patent number: 8088542
    Abstract: A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, a charge transport layer, and an overcoat layer that contains a titanocene.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: January 3, 2012
    Assignee: Xerox Corporation
    Inventors: Jin Wu, John F. Yanus, Kenny-Tuan Dinh, Kent J Evans, Min-Hong Fu, Susan M. Vandusen
  • Right information managing device, information processing system, and computer readable medium
    Patent number: 8089651
    Abstract: A right information managing device includes: a right information storage that associates both old right information and new right information with a target user, and that stores, as first right information showing the right to use of the target user for an information processor, the information associated with the target user; a detecting unit that detects a start of a use of the information processor based on the new right information by the target user; and a use limiting unit that limits the use of the information processor based on the old right information by the target user in accordance with a result obtained by the detecting unit.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: January 3, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Kohei Genda
  • Method and system for analyzing fixed-camera video via the selection, visualization, and interaction with storyboard keyframes
    Patent number: 8089563
    Abstract: Techniques for generating a storyboard are disclosed. In one embodiment of the invention the storyboard is comprised of videos from one or more cameras based on the identification of activity in the video. Various embodiments of the invention include an assessment of the importance of the activity, the creation of a storyboard presentation based on importance and interaction techniques for seeing more details or alternate views of the video. In one embodiment, motion detection is used to determine activity in one or more synchronized video streams. Periods of activity are recognized and assigned importance assessments based on the activity, important locations in the video streams, and events from other sensors. In different embodiments, the interface consists of a storyboard and a map.
    Type: Grant
    Filed: January 3, 2006
    Date of Patent: January 3, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Andreas Girgensohn, Frank M. Shipman, Lynn Wilcox, Donald G. Kimber
  • Separation method and separation apparatus
    Patent number: 8087515
    Abstract: A separation apparatus contains: a dispersion liquid introduction path to which a dispersion liquid containing particles is introduced; a separation path that has a inclined upper face inclined with respect to a direction of gravity and separates the particles; and a discharge path from which particles separated by the separation path are discharged.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: January 3, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Hiroshi Kojima, Kazuya Hongo, Seiichi Takagi, Tetsuo Ohta
  • Gain scheduling approach for fuser control to reduce inter-cycle time
    Patent number: 8090282
    Abstract: A fusing apparatus includes a fuser roll and a pressure roll which define a nip therebetween. An internal heat source is disposed within a interior of the fuser roll. An external heat source is disposed adjacent the fuser roll for heating an outer surface of the fuser roll. One or both of the internal heat source and the external heat source is controlled during a print job such that the thermal gradient across the fuser roll is adjusted. As a result, a temperature overshoot which generally occurs after the print job is finished can be reduced. The influence of subsequent jobs on the fuser roll surface temperature can also be accommodated.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: January 3, 2012
    Assignee: Xerox Corporation
    Inventors: Faming Li, Eric Scott Hamby, Yongsoon Eun
  • Minimizing plug-in DLL repeat instantiation
    Patent number: 8091096
    Abstract: What is disclosed is a novel system and method for ensuring that plug-in DLLs are not unloaded and reloaded repeatedly during the course of a single user-initiated operation. A base driver process loads a plug-in DLL. If a manager thread responsible for this plug-in does not exist then a reference count for the plug-in DLL is incremented. Incrementing the system reference count ensures that the plug-in DLL remains loaded between base driver calls for all of the user-initiated operation by preventing the operating system from unloading the plug-in DLL. A manager thread is then created. The manager thread monitors active COM objects and checks if the base driver is still in memory. If no COM objects are found to be in use after a predetermined amount of time or if the base driver is no longer loaded in memory, the system reference count is decremented. The manager thread then exits.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: January 3, 2012
    Assignee: Xerox Corporation
    Inventors: Matthew D. Fabrizi, Alan K. Robertson
  • Toner cartridge
    Patent number: D651643
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: January 3, 2012
    Assignee: Fuji Xerox Co., Ltd
    Inventor: Yoshiaki Sakai