Patents Assigned to Hewlett-Packard Co.
  • Publication number: 20100051453
    Abstract: A composition and method for fabricating high-density Ta-Al-O, Ta-Si-N, and W-Si-N sputtering targets, having particular usefulness for the sputtering of heater layers for ink jet printers. Compositions in accordance with the invention comprise a metal component, Si3N4, and a sintering aid so that the targets will successfully sputter without cracking, etc. The components are combined in powder form and pressure consolidated under heated conditions for a time sufficient to form a consolidated blend having an actual density of greater than about 95% of the theoretical density. The consolidated blend may then be machined so as to provide the final desired target.
    Type: Application
    Filed: November 5, 2009
    Publication date: March 4, 2010
    Applicants: Tosoh SMD, Inc., Hewlett-Packard Co.
    Inventors: David B. Smathers, Frank S. Valent, Michael J. Regan
  • Publication number: 20060166010
    Abstract: A composition and method for fabricating high-density Ta—Al—O, Ta—Si—N, and W—Si—N sputtering targets, having particular usefulness for the sputtering of heater layers for ink jet printers. Compositions in accordance with the invention comprise a metal component, Si3N4, and a sintering aid so that the targets will successfully sputter without cracking, etc. The components are combined in powder form and pressure consolidated under heated conditions for a time sufficient to form a consolidated blend having an actual density of greater that about 95% of the theoretical density. The consolidated blend may then be machined so as to provide the final desired target shape.
    Type: Application
    Filed: August 27, 2003
    Publication date: July 27, 2006
    Applicants: Tosoh SMD, Inc., Hewlett-Packard Co.
    Inventors: David Smathers, Frank Valent, Michael Regan
  • Patent number: 7014974
    Abstract: A printing method comprising: providing a substrate having a surface coated wiht a coating comprising at least 25% silica; and printing on the coated surface with an ink comprising pigmented polymer particles and a carrier liquid.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: March 21, 2006
    Assignee: Hewlett-Packard Co.
    Inventors: Yaacov Almog, Sergio Brandriss
  • Publication number: 20040239977
    Abstract: A method of tracking a file processing status with a file name is provided by monitoring the file processing status of a computer readable file being processed, associating a present processing descriptor with a present processing status of the computer readable file, and manipulating the file name of the computer readable file so as to include the present processing descriptor.
    Type: Application
    Filed: May 29, 2003
    Publication date: December 2, 2004
    Applicant: HEWLETT-PACKARD CO.
    Inventor: Brian McKinley
  • Publication number: 20040239978
    Abstract: A method and apparatus for tracking a plurality of image devices in a network is provided including steps of detecting an imaging device change in the network, communicating the detected change to a database tracking the plurality of image devices in the network, and updating the database based on the detected change.
    Type: Application
    Filed: May 29, 2003
    Publication date: December 2, 2004
    Applicant: HEWLETT-PACKARD CO.
    Inventors: Scott N. Didriksen, Timothy P. Blair, Charles E. Cantwell
  • Publication number: 20040141105
    Abstract: The present invention relates to display, in particular to a liquid crystal display illuminated by ambient light. The display has a display area, and a light guide system for providing light to the display area, the light guide system comprising: a planar light guiding layer comprised of liquid crystal material and having a light emitting surface and a plurality of side faces disposed around the light emitting surface; a plurality of light pipes, each light pipe having a collector end for collecting ambient light and an output end, the output ends being arranged along the side faces of the light guiding layer so as to introduce the collected light into the guiding medium. The output ends of the light pipes are distributed evenly along each side face of the light guiding layer so as to provide homogeneous illumination to the display area.
    Type: Application
    Filed: January 6, 2004
    Publication date: July 22, 2004
    Applicant: HEWLETT-PACKARD CO.
    Inventor: Susanne Klein
  • Publication number: 20040036746
    Abstract: A modular ink jet ink delivery system comprising a print manifold including a passageway therethrough for the transfer of ink and a pen tower removably and operatively engageable with the manifold. The pen tower includes a central passageway for receiving and transferring ink from the manifold. A retainer member is operatively connected to the manifold. A first sealing member forms a first seal with the retainer member. A second sealing member forms a second seal with the pen tower such that when the pen tower and the manifold are operatively engaged with each other, a substantially sealed passageway is formed for the transfer of ink from the manifold to the pen tower.
    Type: Application
    Filed: August 27, 2003
    Publication date: February 26, 2004
    Applicant: HEWLETT-PACKARD CO.
    Inventors: Mark A. Smith, Daniel W. Petersen, David R. Otis, Ralph L. Stathem
  • Publication number: 20030090697
    Abstract: A network printer is assigned a buddy printer, whereby when the network printer is in a Not Ready to process new print jobs state, any print jobs received by the network printer are redirected to the buddy printer for execution. The current status of the buddy printer is determined by the network printer, whereby print jobs are redirected to the buddy printer only when the buddy printer is currently in the Ready state.
    Type: Application
    Filed: November 9, 2001
    Publication date: May 15, 2003
    Applicant: HEWLETT-PACKARD CO.
    Inventors: Samuel M. Lester, Jimmy Sfaelos
  • Patent number: 6561643
    Abstract: A system of classifying the type of incoming media entering an inkjet or other printing mechanism is provided to identify the media without requiring any special manufacturer markings. The leading edge of the incoming media is optically scanned using a blue-violet light to obtain both diffuse and specular reflectance values. A Fourier transform of these reflectance values generates a spatial frequency signature for the incoming media. The spatial frequency is compared with known values for different types of media to classify the incoming media according to major categories, such as transparencies, glossy photo media, premium paper and plain paper, as well as specific types of media within these categories, such as matte photo premium media and high-gloss photo media. An optimum print mode is selected according to the determined media type to automatically generate outstanding images without unnecessary user intervention. A printing mechanism constructed to implement this method is also provided.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: May 13, 2003
    Assignee: Hewlett-Packard Co.
    Inventors: Steven H. Walker, Stuart A. Scofield
  • Publication number: 20030081791
    Abstract: Messages including encrypted data and having the form of XML documents are exchanged within an information technology network according to Simple Object Access Protocol (SOAP). Each message includes a session key (encrypted to the public key of the party receiving the message) within the XML document containing the encrypted data, meaning that each message is interpretable in a “stand alone” condition, without reference to some shared state (such as the session key for instance) between the parties involved in the messaging. Tags are used to generate modules within the document, and enable easy and convenient separation of elements of the document for distribution by the SOAP gateway protocol handler to the relevant application.
    Type: Application
    Filed: October 26, 2001
    Publication date: May 1, 2003
    Applicant: HEWLETT-PACKARD CO.,
    Inventors: John S. Erickson, Mark Schlageter
  • Publication number: 20030030931
    Abstract: A data reader is arranged to read data from a data-holding medium, said data being arranged into a plurality of data items each containing user data and non-user data, with said non-user data including one or more synchronisation fields. The data reader has a read head for reading a channel of said data-holding medium to generate a data signal comprising said data items, and processing circuitry arranged to receive and process said data signals to detect synchronisation fields, including qualifying the detection of the synchronisation fields to tolerate one or more errors in those synchronisation fields. This means that the synchronisation fields can be detected more reliably, so that more of the user data is recovered.
    Type: Application
    Filed: July 31, 2001
    Publication date: February 13, 2003
    Applicant: HEWLETT-PACKARD CO.
    Inventors: Catharine Anne Maple, Jonathan Peter Buckingham
  • Patent number: 6516425
    Abstract: A method of managing data in a hierarchical data storage system employing data redundancy schemes includes prioritizing a data rebuild based on a most vulnerable data redundancy scheme in the storage system. A data storage system embodying this rebuild prioritization method is also described. Prioritizing the data rebuild includes enabling a rebuild of the most vulnerable data redundancy scheme prior to enabling a rebuild of any other data redundancy scheme in the system. The most vulnerable data redundancy scheme is determined by comparing a probability of losing data that can be prevented by a rebuild for each data redundancy scheme with respect to the potential for one or more next storage device failures in the data storage system.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: February 4, 2003
    Assignee: Hewlett-Packard Co.
    Inventors: Mohamed Belhadj, Rodger D. Daniels, David K. Umberger
  • Patent number: 6516160
    Abstract: The invention includes a method, a computer readable medium, and an apparatus of estimating toner usage based on pulse width count and pulse edge count. In one respect, the invention includes a method for estimating toner usage. The method comprises determining a pulse width count, determining a pulse edge count, and calculating a toner usage value based on the pulse width count and the pulse edge count. In another respect, the invention includes a computer readable medium on which is embedded computer software. The software comprises a program. The program performs the above mentioned method. In yet another respect, the invention includes a system. The apparatus may be configured to perform the above mentioned method.
    Type: Grant
    Filed: August 14, 2001
    Date of Patent: February 4, 2003
    Assignee: Hewlett-Packard Co.
    Inventor: Santiago Rodriguez
  • Patent number: 6508552
    Abstract: A printer having precision ink drying capability and method of assembling the printer. The printer comprises a print head that is adapted to eject a plurality of ink drops through outlet orifices defined by the print head. The ink drops form a plurality of ink marks at a plurality of locations on a recording medium positioned opposite the outlet orifices. A plurality of heaters is disposed near the print head for heating the ink marks on the recording media in order to dry the ink marks. Drying the ink marks fixes the ink to the recording media. A plurality of sensors, that are disposed near the print head are also coupled to respective ones of the heaters for sensing the locations of the ink marks on the recording media. In addition, a controller interconnects each of the heaters to respective ones of the sensors for selectively energizing the heaters according to the locations of the ink marks sensed on the recording media by the sensors.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: January 21, 2003
    Assignee: Hewlett-Packard Co.
    Inventors: Steven W Steinfield, Ronald A. Askeland, Jason R Arbeiter
  • Patent number: 6507768
    Abstract: A method and system to regulate the sheet transport speed in a sheet handling device. Sheets are transported at a transport speed governed by an assigned signal. The actual transport speed of the sheets is determined and the assigned signal is adjusted to make the actual transport speed match a desired transport speed.
    Type: Grant
    Filed: November 7, 2000
    Date of Patent: January 14, 2003
    Assignee: Hewlett-Packard Co.
    Inventors: Laurent A. Regimbal, Hernan Gutierrez
  • Patent number: 6490634
    Abstract: An apparatus and method for transferring digital data from a source application in a computer to a destination application in a computer through one of plural types of transfers. The apparatus automatically determines how a transfer can be made by automatically analyzing the receptivity of the destination application to a particular type of transfer. The types of transfers used are clipboard transfers (preferred), drag-and-drop transfers and specific transfer methods specified in a database. The apparatus also automatically makes the type of transfer to which the destination application is receptive. The method establishes the identification of the destination application by determining which application was used last or by having the user designate a destination application. Then the method automatically transfers the digital data through the use of several different types of transfers.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: December 3, 2002
    Assignee: Hewlett-Packard Co.
    Inventor: Douglas L. Coiner
  • Patent number: 6487636
    Abstract: A RAID data storage system includes a heterogenous disk array coupled to a controller. The disk array provides a storage space that includes a first set of stipes each having at least “N” blocks and a second set of stripes each having less than “N” blocks. The controller can operate to map the storage space into redundant units by creating at least one redundant unit for storing data according to a mirror redundancy scheme. The redundant unit includes a block from the first set of stripes and a block from the second set of stripes.
    Type: Grant
    Filed: April 24, 2000
    Date of Patent: November 26, 2002
    Assignee: Hewlett-Packard Co.
    Inventors: Wade A. Dolphin, Bryan M. Diamond
  • Patent number: 6482574
    Abstract: A process for fabricating a droplet plate for the printhead of an ink-jet printer, which process provides design flexibility, precise dimension control, as well as material robustness. Also provided is a droplet plate fabricated in accord with the process.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: November 19, 2002
    Assignee: Hewlett-Packard Co.
    Inventors: Ravi Ramaswami, Victor Joseph, Colin C. Davis, Ronnie J. Yenchik, Daniel A. Kearl, Martha A. Truninger, Roberto A. Pugliese, Jr., Ronald L. Enck
  • Patent number: 6480443
    Abstract: In general, the present invention provides an autochanger device having a cavity for receiving a magazine containing a media cartridge, wherein a retention arm of the cavity retrains the media pieces within the magazine while the magazine fills the cavity. In particular, a detent mechanism attached to the magazine interacts with the retention arm of the library, via a magazine transport handle, to secure media cartridges contained within the magazine as the magazine is received by a cavity of the autochanger.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: November 12, 2002
    Assignee: Hewlett-Packard Co.
    Inventors: Wayne E. Foslien, Robert L. Mueller, Paul C. Coffin, Gregg S. Schmidtke
  • Patent number: 6478490
    Abstract: A printing apparatus with an index-feeding printing system having a first media path, a continuous feed finishing apparatus having a second media path, and a media buffer device having a third media path connecting between the first media path and the second media path. The third path may have a first portion communicating with the printing system, and a second portion communicating with the finishing apparatus, with the first and second portions merging with each other to form a common path portion terminating at a common path dead end, such that a media sheet from the printing system stops at the dead end and reverses direction for feeding to the finishing apparatus.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: November 12, 2002
    Assignee: Hewlett-Packard Co.
    Inventors: Richard A Kelley, Michael W Munro, Ilan A Sabar, Bruce G. Johnson