Patents Assigned to Palo Alto Research Center Inc.
  • Patent number: 10195871
    Abstract: A thermal printhead (TPH) is positioned to selectively preheat a blanket surface such as an arbitrarily reimageable surface of a variable lithography system. The blanket then immediately passes through a chamber containing dampening solution vapor. The vapor condenses only where the blanket has not been heated, thus developing an image ready for inking.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: February 5, 2019
    Assignees: XEROX CORPORATION, PALO ALTO RESEARCH CENTER INC.
    Inventors: Steven R. Moore, Palghat S. Ramesh, Alex S. Brougham
  • Patent number: 8712915
    Abstract: A system and method for providing private demand-driven pricing for fixed cost digital goods are described. Symmetric private information retrieval is engaged on a table that includes public key encryptions of prices for digital goods stored in a database by a seller system, wherein a desired marginal pricing level has not been realized. The price of one digital good is decrypted with a private key for pricing by a purchaser system. A purchasing decision based upon the decrypted price is sent to the seller system without revealing the particular digital good being purchased. A conditionally disclosed symmetric key for goods is received under which the digital goods in the database have been encrypted. Symmetric private information retrieval is engaged on the database and the digital good purchased with the symmetric key is decrypted. The encrypted prices of the digital goods are privately updated based upon the desired marginal pricing level.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: April 29, 2014
    Assignee: Palo Alto Research Center, Inc.
    Inventors: Jessica Nicola Staddon, Lea Kissner
  • Publication number: 20140060360
    Abstract: An imaging member includes a surface layer comprising a matrix material, an aerogel component, and a radiation-absorbing filler. Methods of manufacturing the imaging member and processes for variable lithographic printing using the imaging member are also disclosed.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Applicants: PALO ALTO RESEARCH CENTER INC., XEROX CORPORATION
    Inventors: Carolyn MOORLAG, Timothy D. STOWE, Nan-Xing HU, Gregory B. ANDERSON
  • Publication number: 20140060358
    Abstract: An imaging member surface contains a swellable elastomer doped with a release oil. This aids in complete transfer of ink to a receiving substrate when a thin film of release oil forms upon the surface during application of pressure at the nip.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Applicants: XEROX CORPORATION, PALO ALTO RESEARCH CENTER INC.
    Inventors: Bing HSIEH, Timothy D. STOWE, Santokh S. BADESHA, Chu-heng LIU, Mandakini KANUNGO, Jorge A. ALVAREZ, Patrick J. HOWE, Matthew M. KELLY, David J. Gervasi, Palghat Srinivas RAMESH
  • Publication number: 20140060357
    Abstract: An imaging member includes a surface layer comprising a silicone component having polar groups. The imaging member can be used with different types of fountain solutions.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Applicant: PALO ALTO RESEARCH CENTER INC.
    Inventor: Bing HSIEH
  • Patent number: 7982290
    Abstract: A contact spring applicator is provided which includes an applicator substrate, a removable encapsulating layer and a plurality of contact springs embedded in the removable encapsulating layer. The contact springs are positioned such that a bond pad on each contact spring is adjacent to an upper surface of the removable encapsulating layer. The contact spring applicator may also include an applicator substrate, a release layer, a plurality of unreleased contact springs on the release layer and a bond pad at an anchor end of each contact spring. The contact spring applicators apply contact springs to an integrated circuit chip, die or package or to a probe card by aligning the bond pads with bond pad landings on the receiving device. The bond pads are adhered to the bond pad landings. The encapsulating or release layer is then removed to separate the contact springs from the contact spring applicator substrate.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: July 19, 2011
    Assignee: Palo Alto Research Center, Inc.
    Inventors: Eugene M. Chow, Christopher L. Chua, Eric Peeters
  • Patent number: 7749748
    Abstract: A compact sensor for detecting the presence of biological or chemical species includes a microdisk laser and a wavelength shift detector. The microdisk laser is coated with a biological or chemical recognition element, which binds preferentially with a target analyte. Because the recognition element and the target analyte adhere to the sidewall surface of the microdisk laser, they increase the effective diameter of the laser, which shifts the output wavelength by a detectable amount. The presence of a wavelength shift indicates the presence of the target analyte, and the magnitude of the wavelength shift corresponds to the mass load of the target analyte on the sidewall surface of the microdisk laser.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: July 6, 2010
    Assignee: Palo Alto Research Center, Inc.
    Inventors: Peter Kiesel, Noble M Johnson, Meng H Lean, H. Ben Hsieh, Michael A Kneissl
  • Patent number: 7652656
    Abstract: A method of displaying an image in an electrophoretic display device having at least one display layer including a multiplicity of individual reservoirs containing a display fluid between conductive substrates, wherein the display fluid comprises at least two sets of particles in a liquid medium, the at two sets of particles each exhibiting a different color, wherein a first set of particles and a second set of particles have a same charge polarity and the first set of particles has a higher average charge than the second set of particles, includes applying an electric field to selected ones of the multiplicity of reservoirs to effect movement of one or more of the differently colored sets of particles in the display fluid therein to display a desired color derived from among the sets of differently colored particles, wherein the applying to display a color of the second set of particles involves pulsing an electric field through the conductive substrates for a time sufficient to attract the first set of part
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: January 26, 2010
    Assignees: Xerox Corporation, Palo Alto Research Center, Inc.
    Inventors: Naveen Chopra, Peter M. Kazmaier, Man-Chung Tam, San-Ming Yang, Paul F. Smith, Hadi K. Mahabadi, Gabriel Iftime, Jurgen H. Daniel, Robert A. Street
  • Publication number: 20090160006
    Abstract: A high fill-factor photosensor array is formed comprising a P-layer, an I-layer, one or more semiconductor structures adjacent to the I-layer and each coupled to a N-layer, an electrically conductive electrode formed on top of the P-layer, and an additional semiconductor structure, adjacent to the N-layer and which is electrically connected to a voltage bias source. The bias voltage applied to the additional semiconductor structure charges the additional semiconductor structure, thereby creating a tunneling effect between the N-layer and the P-layer, wherein electrons leave the N-layer and reach the P-layer and the electrically conductive layer. The electrons then migrate and distribute uniformly throughout the electrically conductive layer, which ensures a uniform bias voltage across to the entire photosensor array. The biasing scheme in this invention allows to achieve mass production of photosensors without the use of wire bonding.
    Type: Application
    Filed: February 25, 2009
    Publication date: June 25, 2009
    Applicant: Palo Alto Research Center, Inc.
    Inventors: JengPing Lu, James B. Boyce, Kathleen Dore Boyce
  • Publication number: 20090160007
    Abstract: A high fill-factor photosensor array is formed comprising a P-layer, an I-layer, one or more semiconductor structures adjacent to the I-layer and each coupled to a N-layer, an electrically conductive electrode formed on top of the P-layer, and an additional semiconductor structure, adjacent to the N-layer and which is electrically connected to a voltage bias source. The bias voltage applied to the additional semiconductor structure charges the additional semiconductor structure, thereby creating a tunneling effect between the N-layer and the P-layer, wherein electrons leave the N-layer and reach the P-layer and the electrically conductive layer. The electrons then migrate and distribute uniformly throughout the electrically conductive layer, which ensures a uniform bias voltage across to the entire photosensor array. The biasing scheme in this invention allows to achieve mass production of photosensors without the use of wire bonding.
    Type: Application
    Filed: February 25, 2009
    Publication date: June 25, 2009
    Applicant: PALO ALTO RESEARCH CENTER, INC.
    Inventors: JengPing Lu, James B. Boyce, Kathleen Dore Boyce
  • Patent number: 7412405
    Abstract: A method for propagating advertisement for market controlled presentation among communication devices over a communication network accessed by service providers and an advertising service is stored and executed as an application for use by network devices. The method includes receiving advertising requests and bids from potential advertisers, with each bid including a presentation slot specification and a proposed amount of payment for presentation. Ranking information is computed from the bid, with the ranking reflecting the financial value of propagation of the advertising request to the advertising service. The method also provides certification of the advertising request, with certification including a signature of the contents of the advertising request, the requested presentation slot, and the ranking information. The certified advertisement is then propagated over the communication network.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: August 12, 2008
    Assignee: Palo Alto Research Center, Inc.
    Inventors: Qingfeng Huang, Daniel H. Greene, Juan Liu, Hermann Calabria
  • Patent number: 7403325
    Abstract: An electrophoretic display device includes a multiplicity of individual reservoirs containing a display medium between conductive substrates, at least one of which is transparent, wherein the display medium includes one or more set of colored particles in a dielectric fluid and has an electrical conductivity of about 10?11 to about 10?15 S/m, and wherein the multiplicity of individual reservoirs are defined by a unitary grid whose walls segregate the reservoirs. The grid may be formed via photolithography or from a master stamp derived from a mold of the grid pattern.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: July 22, 2008
    Assignees: Xerox Corporation, Palo Alto Research Center, Inc.
    Inventors: Naveen Chopra, Jurgen H. Daniel, Brent S. Krusor, San-Ming Yang, Peter M. Kazmaier, Gabriel Iftime
  • Patent number: 7345810
    Abstract: A method of displaying an image in an electrophoretic display device includes charging each of the sets of differently colored particles to have a different charge through application of an electric field to the display fluid or the device, and then applying an electric field to selected ones of the multiplicity of reservoirs to effect movement of one or more of the differently colored sets of particles in the display fluid therein to display a desired color derived from among the sets of differently colored particles. The colors are shown by way of the particle set or sets moved to be closet to the viewing side conductive substrate of the device.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: March 18, 2008
    Assignees: Xerox Corporation, Palo Alto Research Center, Inc.
    Inventors: Naveen Chopra, Man-Chung Tam, San-Ming Yang, Barkev Keoshkerian, Peter M. Kazmaier, Paul F. Smith, Hadi K. Mahabadi, Jurgen H. Daniel, Robert A. Street
  • Patent number: 7335463
    Abstract: Mechanical and/or structural devices are formed using electroplating techniques in conjunction with sacrificial materials that can also be formed using electroplated techniques. This can produce devices that are attached at only selected points to a substrate and/or structures having enclosed cavities on or above a working substrate. A particularly relevant use of such structure forming techniques is in the fabrication of an ink jet manifold and nozzle structure for use in an ink jet print head, particularly a MEMS-based ink jet print head.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: February 26, 2008
    Assignee: Palo Alto Research Center, Inc.
    Inventors: Michel A Rosa, Eric Peeters
  • Patent number: 7228634
    Abstract: One embodiment of the present invention provides a system that uses a visual tag to determine an angle. During operation, the system observes the visual tag from an observation point, wherein the visual tag includes an angle-sensitive image which changes in appearance when observed from different angles. Next, the system uses the appearance of the angle-sensitive image (as observed from the observation point) to determine the angle between the visual tag and the observation point. In a variation on this embodiment, the system uses the determined angle along with supplemental information to determine the physical location of the observation point.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: June 12, 2007
    Assignee: Palo Alto Research Center Inc.
    Inventor: James E. Reich
  • Patent number: 7169649
    Abstract: Wafer scale fabrication of three dimentional substantially enclosed structures on a MEMS/IC die use a combination of electrodeposition of structural and sacrificial layers and flip-chip alignment and bonding technology. A first wafer contains a die with MEMS and/or IC structures. On this MEMS/IC processed die, a first three dimensional structural component is formed using standard lithographic processes and electrodeposition of a structural layer. A second sacrificial wafer is separately processed using similar lithographic and electrodeposition processes to form a corresponding second three dimensional structural component. The wafers are placed in a flip-chip bonder and aligned. Once aligned, the structural components are bonded together. The bonded wafers are then removed from the bonder and the second sacrificial wafer substrate removed. The resultant die includes a three dimensional structural component with a substantially enclosed cavity as well as MEMS and IC elements.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: January 30, 2007
    Assignee: Palo Alto Research Center, Inc.
    Inventors: Michel A. Rosa, Eric Peeters
  • Patent number: 7133872
    Abstract: A method and system for unifying component metadata includes components, such as computers, laptops or flat panel display devices and software entities, connected together by one or more networks. A method includes a first component, such as a laptop device, obtaining intrinsic metadata associated with one or more other components, such as a computer and a flat panel display device. The first component combines intrinsic metadata received from each component with extrinsic metadata of the first component, and provides the combined metadata to the other components, although the first component may also utilize the combined metadata. The components are able to obtain a consistent, unified view of the combined metadata without needing any prior programming and without requiring the use of centralized servers.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: November 7, 2006
    Assignee: Palo Alto Research Center Inc.
    Inventors: Warren Keith Edwards, Mark Webster Newman, Trevor Smith, Jana Zdislava Sedivy, Karen Marcelo, Shahram Izadi, Jason Hong
  • Patent number: 7130998
    Abstract: One embodiment of the present invention provides a system that uses a portable security token (PST) to facilitate cross-certification between a first certification authority (CA) and a second CA, wherein the first CA and associated subscriber devices constitute a first public-key infrastructure (PKI) domain, and wherein the second CA and associated subscriber devices constitute a second PKI domain. During operation, the system uses the PST to transfer certification information between the first CA and the second CA, wherein the PST communicates with the first CA and the second CA through a location-limited communication channel. Next, the system uses the certification information to issue a cross-certificate to the first CA. Note that the cross-certificate is signed by the second CA.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: October 31, 2006
    Assignee: Palo Alto Research Center, Inc.
    Inventors: Dirk Balfanz, Glenn E. Durfee, Diana K. Smetters
  • Patent number: 7125495
    Abstract: Two different processing techniques are utilized to respectively form high resolution features and low resolution features in a critical layer of an electronic device, and in particular a large area electronic device. High resolution features are formed by soft lithography, and low resolution features are formed by jet-printing or using a jet-printed etch mask. Jet-printing is also used to stitch misaligned structures. Alignment marks are generated with the features to coordinate the various processing steps and to automatically control the stitching process. Thin-film transistors are formed by generating gate structures using a first jet-printed etch mask, forming source/drain electrodes using soft lithography, forming interconnect structures using a second jet-printed etch mask, and then depositing semiconductor material over the source/drain electrodes.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: October 24, 2006
    Assignee: Palo Alto Research Center, Inc.
    Inventors: Robert A. Street, William S. Wong, Alberto Salleo, Michael L. Chabinyc
  • Patent number: 7120182
    Abstract: An array of light emitters includes a plurality of light emitting structures formed over a layered structure with at least one quantum well layer. At least one cladding layer is formed on over the at least one quantum well layer. At least one waveguide layer is formed on or over the at least one cladding layer. At least one isolation region is formed at least in between at least two of the plurality of light emitting structures. The at least one isolation region isolates the at least two light emitting structures from each other.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: October 10, 2006
    Assignee: Palo Alto Research Center, Inc.
    Inventors: Christopher L. Chua, Decai Sun