Abstract: Disclosed are bias charge rollers having an overcoat layer. The overcoat layer comprises a phenolic resin and a conductive agent. The resulting bias charge rollers have reduced streaking and increased service lifetimes.
Type:
Grant
Filed:
February 17, 2010
Date of Patent:
December 27, 2011
Assignee:
Xerox Corporation
Inventors:
Brian P. Gilmartin, Liang-Bih Lin, Jeanne M. Koval, Aaron M. Stuckey
Abstract: A high-speed turbomachine includes a magnetic bearing (22, 23) and a retainer bearing for mounting the rotor. The retainer bearing is embodied as a sliding bearing (26, 27) and encompasses a bearing shell (28) at the stator end, a bearing shaft (20) at the rotor end, and an intermediate bushing (30) between the bearing shell (28) and the bearing shaft (20). The intermediate bushing (30) is spaced apart from both the bearing shaft (20) and the bearing shell (28) by a circular gap (33, 34). The intermediate bushing (30) is rotatable relative to the bearing shell (28) and the bearing shaft (20). As a result of this design, the sliding bearing (26) is provided with two pairs of sliding surfaces, onto which all occurring dynamic forces are distributed such that wear is significantly reduced, thus allowing sliding bearings to be used as retainer bearings in a magnetically mounted high-speed turbomachine.
Abstract: Sub-raster registration errors are compensated for through non-redundant overwriting. Data from adjacent rasters is written to a particular output raster so that the adjacent rasters share an influence at a point actually written to by a rendering device, thereby compensating for a sub-raster component of a registration error associated with writing to the particular point. If two writing passes per raster are used and the writing passes have equal influence (e.g., are written with equal power), then writing data from a first raster during a first pass and writing data from a second raster adjacent to the first raster during a second pass compensates for a sub-raster registration error of half a raster spacing. If two writing passes are associated with different influence (e.g., are written with ? and ? power respectively) and/or if additional writing passes are used, then addition sub-raster positions can be compensated for or emulated.
Abstract: A system and method for providing a factuality assessment of a retrieved information source's statement are disclosed. The method includes receiving a user's query which identifies an information source whose statements are to be retrieved, retrieving documents which refer to the information source, mapping statements in the retrieved documents to their authors, identifying as information source statements, the mapped statements that are mapped to an author which is compatible with the information source, and for at least one of the information source's statements, assessing a factuality of the information source's statement according to the information source.
Type:
Grant
Filed:
April 22, 2008
Date of Patent:
December 27, 2011
Assignee:
Xerox Corporation
Inventors:
Salah Ait-Mokhtar, Aude Rebotier, Agnes Sandor
Abstract: A system and method for network based detection of wireless data subscribers using network address translation devices is provided. The method includes identifying a minimum number of devices showing the same internet protocol address. Packet identification sequences may include port numbers or internet protocol identification numbers. The method continues with grouping these applications by their packet identification sequences and applying detection logic where detection logic yields a conclusion that there are multiple host computers when a set of applications appears in a plurality of packet identification sequences. This method is particularly useful when internet protocol addresses are dynamic, as opposed to static. This method overcomes previous embodiments known in the art by being able to account for and work with live traffic, which enables real time detection.
Type:
Grant
Filed:
January 30, 2008
Date of Patent:
December 20, 2011
Assignee:
Alcatel Lucent
Inventors:
Li (Erran) Li, Tian Bu, Scott C. Miller, Aiyou Chen
Abstract: In the case of printing at high addressability, where the cell size is smaller than the spot size, an image can be decimated in a manner that will limit the large accumulation of printed material. The proper decimation of the image will depend on the spot size, the physics of drop coalescence and the addressability during printing. A simple method of using concentric decimation is disclosed herein to enable this process.
Abstract: In a preparation method, a chiral or cholesteric liquid crystal, a photoreactive monomer, and a photoinitiator are disposed in a liquid crystal cell. A principal surface of the liquid crystal cell is illuminated with ultraviolet light selected to have a non-uniform ultraviolet light intensity profile in the liquid crystal cell. The illuminating cooperates with the photoinitiator to polymerize at least a portion of the photoreactive monomer near the principal surface to generate a polymer network having a density corresponding to the non-uniform ultraviolet light intensity profile. The polymer network biases the liquid crystal toward a selected helical alignment direction. In some embodiments, the illuminating includes illuminating with first and second ultraviolet light intensity profiles to produce surface and volume polymer network components.
Type:
Grant
Filed:
February 25, 2009
Date of Patent:
December 20, 2011
Assignees:
Kent State University
Inventors:
Lachezar Komitov, Liang-Chy Chien, Sang Hwa Kim
Abstract: Features described herein relate to ejecting drops from a thin layer of fluid. Piezoelectric elements can generate a uniform high acoustic field, which is transferred through a segmented metal support structure and an acoustic horn. The sound waves generate capillary waves on a thin layer of fluid on a top surface of the acoustic horn. At sufficiently high amplitudes, the capillary waves begin to break apart, resulting in the ejection of drops from the thin layer of fluid.
Abstract: The invention concerns a method for performing frequency selective control channel scheduling in networks using an OFDM spectrum, whereby a base station (BS1-BS8) broadcasts on at least one predefined subcarrier which is known to all mobile terminals (T1-T4) a signaling information common to all mobile terminals (T1-T4) indicating the position of at least one subcarrier of at least one frequency selective shared control channel and at least one identification of at least one addressed mobile terminal, the base station (BS1-BS8) sends signaling information for said at least one addressed mobile terminal at the indicated position of said at least one subcarrier of said at least one frequency selective shared control channel, and at least one mobile terminal (T1-T4) measures at least one subcarrier of said at least one frequency selective shared control channel for channel quality estimation, a base station (BS1-BS8), a mobile terminal (T1-T4) and a network (CN) therefor.
Type:
Grant
Filed:
December 18, 2006
Date of Patent:
December 20, 2011
Assignee:
Alcatel Lucent
Inventors:
Ralph Ballentin, Stephen Kaminski, Hajo Bakker, Chan Zhou, Gerhard Wunder
Abstract: A vehicle brake system for a vehicle comprises at least one source of pressurized air for pressurizing the vehicle brake system, and a brake actuator configured to receive air from the source of pressurized air. A control is operatively associated with the source of pressurized air for selective application of the brake actuator. A supplemental parking brake control system is in communication with the control and the brake actuator. The control system is responsive to data indicative of gradient and speed vehicle conditions. The control system is configured to send a signal to the brake actuator to allow gradient and speed dependent supplemental parking. The control system is configured to prevent application of the brake actuator.
Abstract: A merging module connects two printing systems at approximately 90 degrees to one another. The merging module includes a sheet rotator in a plane that is common to the paper paths of both print engines and a buffer. It also includes two bypass paths (one above and one below the rotator) to route the two paper paths around the rotator and enable both print engines to deliver their output to the appropriate finishing device as well as to the buffer.
Type:
Grant
Filed:
June 24, 2005
Date of Patent:
December 20, 2011
Assignee:
Xerox Corporation
Inventors:
Joseph H. Lang, Gregory Sosinski, Geoffrey C. Williams, William K. Fancher
Abstract: As set forth herein, a finisher module within an automated print system is described. A compiler delivery system receives and organizes one or more sheets in a predetermined configuration for delivery. A compiling belt system receives the one or more sheets from the compiler deliver system, locates the one or more sheets and transports the sheets concurrent to one or more finishing processes. A side tamper system moves alongside the compiling belt system to side tamp and register sheets in the cross process direction. A stapler/stitcher assembly moves alongside the compiling belt system to perform at least one of a stapling and a stitching operation as the one or more sheets are transported.
Abstract: An enclosure for electronics includes a body with a metal component and a polymeric component overmolded onto the metal component so as to be connected to the metal component without fasteners. The body defines a recess. A heat sink is defined in the metal component. A printed circuit board is located in the recess and includes a plurality of electronic components mounted thereon.
Abstract: A method and apparatus for a modular printing system having individual units comprising input modules, transporter modules, marking engine modules, fuser modules and exit modules each with its own support structure and cabinet. The modular units have common matching interface configurations for paper feed and electrical connections so as to permit numerous combinations and variations of printing systems capable of monochrome, color, duplex, hybrid and simplex printing by modular interconnection as opposed to built-up systems.
Type:
Grant
Filed:
December 10, 2008
Date of Patent:
December 13, 2011
Assignee:
Xerox Corporation
Inventors:
Barry Paul Mandel, James J. Spence, Henry T. Bober
Abstract: Systems and methods are described hereinto to provide a notification when a predetermined event occurs that is related to a consumable. A print engine outputs hard copies based on electronically received data. One or more toner cartridges that are utilized by the print engine to place toner onto a hard copy substrate. A meter monitors and provides a level of remaining toner for each of the one or more cartridges. A yield component receives level data from each meter to compare to an expected yield and an expected grams per impression, wherein if the expected yield and/or the expected grams per impression are outside of a predetermined threshold, a signal is output.
Type:
Grant
Filed:
May 27, 2009
Date of Patent:
December 13, 2011
Assignee:
Xerox Corporation
Inventors:
Jeremy Lee Reitz, Matthew Owen Scrafford
Abstract: The method analyzes the operation of a cellular mobile telecommunications network comprising a set of cells each associated with a base station adapted to communicate with a mobile station present in the cell. The method comprises: a) for each cell, collecting one or more variables characteristic of the operation of the network in said cell; and b) supplying the or each characteristic variable in association with the collection cell. The supply step comprises: b1) selecting on a map of the network based on said cells an observation line passing over the map across adjacent cells; and b2) making available a structured representation of the or each characteristic variable for only the adjacent cells crossed by said observation line, in the order in which they are encountered along said line.
Type:
Grant
Filed:
March 16, 2006
Date of Patent:
December 13, 2011
Assignee:
Alcatel Lucent
Inventors:
Jean-Roch Houllier, Alain Brethereau, Béatrix De Mathan, Andrë Mechaly
Abstract: A microfluidic chip comprises a substrate and a channel or multiple channels in the substrate. Each channel includes a tortuous path section or multiple tortuous path sections. A receptor for the detection of an analyte can be immobilized in a tortuous path section, for example by adsorption. Different receptors can be immobilized in different tortuous path sections of each channel or in different channels for simultaneous detection of multiple analytes. The chip is especially useful for running immunoassays, particularly ELISA.
Abstract: An image processing apparatus, program product, and method determine an achievable gamut achievable by the imaging engine or engines for all spatial locations of an output image, or all utilized print engines. A reference gamut is calculated which is any gamut containing the achievable gamut. A gamut mapping is used to map gamuts from the mean gamut to the achievable gamut, and a set of transformations is calculated for each of a set of input colors to a set of target colors selected from colors in the achievable gamut. Values for a received digital image are transformed for each image pixel or clusters of pixels based on the calculated set of transformations. Output images are generated based on the transformed values.
Abstract: Methods for simultaneously surveying the status of a large number of DNA mutation markers are described. In addition, methods for simultaneously determining the methylation status at multiple sites of a collection of genes, in a single assay, are described.