Patents Assigned to Palo Alto Research Center
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Publication number: 20090274499Abstract: A system for heated gas fusing of toner on non-porous substrates is provided. The system uses (1) an extended fusing zone held at lower temperatures than needed for a roll nip or radiant fuser, and (2) a very low melt toner which can be fused at greatly reduced temperatures compared to conventional toners. In one form, the system is realized through (a) the use of heated gas as the low temperature extended zone fusing technology, and (b) the use of ultra-low melt (ULM) toner—which requires significantly reduced temperature compared to conventional toner. On non-porous packaging substrates the use of heated gas can limit the substrate temperature to 100° C.Type: ApplicationFiled: April 30, 2008Publication date: November 5, 2009Applicants: XEROX CORPORATION, PALO ALTO RESEARCH CENTER INCORPORATEDInventors: Gregory J. Kovacs, Ashish V. Pattekar, David Biegelsen, Lars E. Swartz, Guerino G. Sacripante, T. Brian McAneney, Edward G. Zwartz
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Publication number: 20090275192Abstract: A method forms a first active electronic layer, prints an array of pillars on the first active electronic layer, dispenses a curable polymer over the array of pillars, molds the curable polymer by contacting the curable polymer with a mold structure to displace the curable polymer from upper surfaces of the pillars, cures the curable polymer to produce a hardened polymer, and removes the array of pillars to leave an array of holes in the hardened polymer. Another method provides a substrate having selected areas, prints an array of pillars on the substrate, dispenses a curable polymer over the array of pillars, molds the curable polymer by contacting the array of pillars with a mold structure to displace the curable polymer from upper surfaces of the pillars, cures the curable polymer to produce a hardened polymer, and removes the array of pillars to leave an array of holes in the hardened polymer corresponding to the selected areas.Type: ApplicationFiled: July 14, 2009Publication date: November 5, 2009Applicant: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: JURGEN H. DANIEL, ANA C. ARIAS
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Patent number: 7613664Abstract: Techniques are provided to determine user-interest features and user-interest parameter weights for a user-interest model. The user-interest features are pre-determined and/or determined dynamically. Pre-determined user-interest features are based on user-interest profiles, prior user activities, documents listed in a resume, reading or browsing patterns and the like. Dynamically determined user-interest features include features learned from an archive of user activities using statistical analysis, machine learning and the like. User-interest parameter weights are pre-determined and/or dynamically determined. Pre-determined user-interest parameter weights include parameter weights manually entered by a user indicating the relevant importance of a user-interest feature and parameter weights previously learned from an archive of the user's past activities.Type: GrantFiled: March 31, 2005Date of Patent: November 3, 2009Assignee: Palo Alto Research Center IncorporatedInventors: Stefan Riezler, Daniel H. Greene
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Publication number: 20090268247Abstract: Features described herein relate to concurrently processing multiple batches of job requests for one or more machines and/or components thereof, using a plurality of job planning queues. Each batch of job requests is allocated to a planning queue, and each planning queue comprises an unplanned subqueue that stores unplanned jobs, an unsent subqueue that stores planned jobs waiting to be executed, and a sent subqueue that stores planned jobs that have been output to the machine(s) for execution. A job planner and related components determine which unsent subqueue has the fewest planned jobs at a given point in time, and selects an unplanned job from the unplanned subqueue in the same planning queue as the identified unsent subqueue. The planner then generates a plan for the selected job and inserts the planned job into the unsent subqueue for eventual output to the machine(s) for execution.Type: ApplicationFiled: July 16, 2009Publication date: October 29, 2009Applicant: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: Wheeler Ruml, Minh Binh Do, Rong Zhou
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Publication number: 20090262776Abstract: The presently described embodiments are directed to a calibration method and system for thin film thermistors that are locally heated with integrated thin film heaters. Initially, print head temperature is either measured or referenced. Then, transient thermistor resistances are measured and used to determine the thermistor resistance at a higher temperature. Notably, this calibration method is advantageously implemented as a step of an existing process without having to expose the print heads to operating temperatures. In some implementations of the presently described embodiments, trimming of the thermistors may be required once calibrated.Type: ApplicationFiled: July 6, 2009Publication date: October 22, 2009Applicant: Palo Alto Research Center IncorporatedInventors: Scott Jong Ho Limb, Michael Yu Tak Young, Karl A. Littau
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Publication number: 20090260425Abstract: An apparatus and system for measuring the presence or absence of reaction between a first and second material of interest by measuring osmotic pressure changes of reaction detector. The reaction detector is capable of measuring the small changes in pressure that occur due to osmotic pressure shifts during a catalytic or binding reaction at species concentrations down to approximately 10?7 M.Type: ApplicationFiled: June 29, 2009Publication date: October 22, 2009Applicant: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: Francisco E. Torres, Eric Shrader, Karl Littau
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Publication number: 20090259464Abstract: A system and method for facilitating cognitive processing of simultaneous remote voice conversations is provided. A plurality of remote voice conversations participated in by distributed participants are provided over a shared communication channel. A main conversation between at least two of the distributed participants and one or more subconversations between at least two other of the distributed participants are identified from within the remote voice conversations. Segments of interest to one of the distributed participants are defined including a conversation excerpt having a lower attention activation threshold for the one distributed participant. Each of the subconversations is parsed into conversation excerpts. The conversation excerpts are compared to the segments of interest. One or more gaps between conversation flow in the main conversation are predicted.Type: ApplicationFiled: April 11, 2008Publication date: October 15, 2009Applicant: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: Nicolas B. Ducheneaut, Trevor F. Smith
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Publication number: 20090253513Abstract: A system and method for providing text of interest to a player from text messages in an online game is provided. A player profile for a player participating in an online game is maintained. Text messages from sources in the online game are received substantially simultaneously within a buffer for a limited text area of a display during an online game session. A main conversation in which the player is involved with one of the sources from the text messages is identified and removed from the buffer. The text messages in the buffer not identified as the main conversation are analyzed for text of interest to the player included in the player profile. The text of interest is provided in the limited text area in the display interspersed with the main conversation concurrent to receipt of each text message within which the text of interest was included.Type: ApplicationFiled: April 7, 2008Publication date: October 8, 2009Applicant: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: Nicolas B. Ducheneaut, Eric S. Nickell
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Publication number: 20090253512Abstract: A system and method for presenting location-based communication in an online game relative to a player from a communication source is provided. A communication to a recipient from within a simulated three-dimensional environment of an online game is accepted. A source co-located with the recipient of the communication is determined. An apparent proximity and direction of the source relative to the recipient is evaluated. A recipient specific adjustor to the communication is applied. Presentation of the communication is modified by the apparent proximity and direction of the source to the recipient in the display based on the adjustor applied.Type: ApplicationFiled: April 7, 2008Publication date: October 8, 2009Applicant: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: Eric S. Nickell, Nicolas B. Ducheneaut
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Patent number: 7597925Abstract: An improved method of forming a display is described. The method describes depositing droplets of a display fluid into a sealing solution. The sealing solution seals the droplets of display fluid such that each droplet forms a miniature cell of display fluid. Electrodes address charged particles in the miniature cells to form viewable images for use in a display.Type: GrantFiled: June 28, 2004Date of Patent: October 6, 2009Assignee: Palo Alto Research Center IncorporatedInventor: Jurgen H. Daniel
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Publication number: 20090246744Abstract: A method of automatically generating personalized text for teaching a student to learn to read. Based upon inputs of the students reading ability/level, either from a self assessment or teacher input and input of personal data, the system automatically searches selected libraries and chooses appropriate text and modifies the text for vocabulary and topics of character identification of personal interest to the student. An optional function of previewing by one of the student's teacher, parent or advocate is included. The system generates a local repository of generated text associated with a particular student.Type: ApplicationFiled: March 25, 2008Publication date: October 1, 2009Applicants: Xerox Corporation, Palo Alto Research Center IncorporatedInventors: Robert M. Lofthus, Kristine A. German, Frederique Segond, Tracy Holloway King, Marilyn Whalen, Luke Plurkowski, Margaret Helen Szymanski, Qingfeng Huang
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Publication number: 20090244252Abstract: Disclosed are an apparatus, optical scanning device, and a corresponding method of forming images on a photosensitive surface. The apparatus includes a laser raster output scanner (ROS) including laser emitters arranged to simultaneously scan a plurality of laser beams across a single scan line of the photosensitive surface in response to received image data corresponding to pixels in an image to be reproduced, and a controller individually controlling each of the laser emitters to selectively apply one of a plurality of power levels to each of the laser beams based on the image data for each of the pixels, wherein a total power applied by the laser beams for each pixel is determined by a sum of the power levels applied by each of the laser beams.Type: ApplicationFiled: April 1, 2008Publication date: October 1, 2009Applicants: XEROX CORPORATION, Palo Alto Research Center IncorporatedInventors: Robert J. Kleckner, Patrick Yasuo Maeda, Martin Pepe
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Publication number: 20090243020Abstract: Layered structures such as photosensing arrays include layers in which charge carriers can be transported. For example, a carrier-transporting substructure that includes a solution processing artifact can transport charge carriers that flow to or from it through charge-flow surface parts that are on electrically conductive regions of a circuitry substructure; the circuitry substructure can also have channel surface parts that are on semiconductive channel regions, with a set of the channel regions operating as acceptable switches in an application. Or a first substructure's surface can have carrier-active surface parts on electrode regions and line surface parts on line regions; a second substructure can include a transport layer on carrier-active surface parts and, over it, an electrically conductive layer; to prevent leakage, an open region can be defined in the electrically conductive layer over the line surface part and/or an electrically insulating layer portion can cover the line surface part.Type: ApplicationFiled: June 11, 2009Publication date: October 1, 2009Applicant: Palo Alto Research Center IncorporatedInventors: Michael L. Chabinyc, Tse Nga Ng
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Publication number: 20090249220Abstract: One embodiment of the present invention provides a system which allows a document owner to redact content from a document and allows a recipient of the redacted document to challenge the appropriateness of the redaction. During operation, the system allows the document owner to redact a string Mi from location i in the document. In doing so, the system produces a commitment Ci=C(Mi, Ri) based on string Mi and a string Ri used as randomness and communicates Ci to the recipient. When the recipient challenges the redaction, the system receives a topic string T from the recipient, and produces a string RT. The system then communicates RT to the recipient, thereby allowing the recipient to produce a commitment CT=C(T, RT) based on strings T and RT, and compare CT with Ci. Comparing commitment CT with Ci allows the recipient to test redactions for string equality.Type: ApplicationFiled: March 26, 2008Publication date: October 1, 2009Applicant: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: Philippe Jean-Paul Golle, Jessica N. Staddon, Richard Chow
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Publication number: 20090239331Abstract: Methods for forming a photovoltaic cell electrode structure, wherein the photovoltaic cell includes a semiconductor substrate having a passivation layer thereon, includes providing a plurality of contact openings through the passivation layer to the semiconductor substrate, selectively plating a contact metal into the plurality of contact openings to deposit the contact metal, depositing a metal containing material on the deposited contact metal, and firing the deposited contact metal and the deposited metal containing material. The metal containing material may include a paste containing a silver or silver alloy along with a glass frit and is substantially free to completely free of lead. The methods may also use light activation of the passivation layer or use seed layers to assist in the plating.Type: ApplicationFiled: March 24, 2008Publication date: September 24, 2009Applicant: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: Baomin XU, Karl A. LITTAU, David K. FORK
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Publication number: 20090239332Abstract: Provided is a bifacial photovoltaic arrangement comprising a bifacial cell which included a semiconductor layer having a first surface and a second surface, a first passivation layer formed on the first surface of the semiconductor layer and a second passivation layer formed on the second surface of the semiconductor layer, and a plurality of metallizations formed on the first and second passivation layers and selectively connected to the semiconductor layer. At least some of the metallizations on the bifacial photovoltaic arrangement comprising an elongated metal structure having a relatively small width and a relatively large height extending upward from the first and second passivation layers.Type: ApplicationFiled: June 1, 2009Publication date: September 24, 2009Applicant: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: David K. Fork, Stephen Patrick Shea
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Publication number: 20090238075Abstract: A system computes link costs for a multi-hop wireless network. During operation, the system receives topological information for the multi-hop wireless network which includes a set of nodes, a set of links, and a success probability for a respective link. The system then obtains an average media access time for the multi-hop wireless network. The system also obtains a retransmission time for a respective node in the set of nodes. Next, the system computes a link metric value for a respective link based on the corresponding link success probability, the average media access time, and the corresponding retransmission time. The system then produces a link cost for the link based on the associated link metric value.Type: ApplicationFiled: March 18, 2008Publication date: September 24, 2009Applicant: PALO ALTO RESEARCH CENTER INCORPORATEDInventor: Marc E. Mosko
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Publication number: 20090232561Abstract: An improved method and system for non-contact powder image development are provided. The present technique implements a 5-stage jumping development cycle where the initial stage is a momentary over-voltage condition to release the majority of the toner on a donor substrate and the final stage includes the implementation of a decelerating potential to minimize return impact on the donor and therefore toner abuse. It also uses a routine to directly determine improved (e.g. up to optimal) waveform amplitudes and pulse widths based on toner size and q/m, guided by physical insight.Type: ApplicationFiled: March 14, 2008Publication date: September 17, 2009Applicants: PALO ALTO RESEARCH CENTER INCORPORATED, XEROX CORPORATIONInventors: Meng H. Lean, Shu Chang, Daniel L. Larner, Armin R. Volkel
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Publication number: 20090233815Abstract: Fluidic conduits, which can be used in microarraying systems, dip pen nanolithography systems, fluidic circuits, and microfluidic systems, are disclosed that use channel spring probes that include at least one capillary channel. Formed from spring beams (e.g., stressy metal beams) that curve away from the substrate when released, channels can either be integrated into the spring beams or formed on the spring beams. Capillary forces produced by the narrow channels allow liquid to be gathered, held, and dispensed by the channel spring probes. Because the channel spring beams can be produced using conventional semiconductor processes, significant design flexibility and cost efficiencies can be achieved.Type: ApplicationFiled: April 22, 2009Publication date: September 17, 2009Applicant: Palo Alto Research Center IncorporatedInventors: Thomas Hantschel, David K. Fork, Eugene M. Chow, Dirk De Bruyker, Michel A. Rosa
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Publication number: 20090234891Abstract: A system and method for providing a synchronized data rerepresentation is provided. Data maintained by an originating application is accessed and the data is presented thorough an originating user interface. The data is marshaled into a form useable by a surrogate application with rerepresentation of the data through a surrogate user interface. Selections of the data are reflected across the originating user interface and the surrogate user interface. Actions on the data are synchronized between the originating application and the surrogate application.Type: ApplicationFiled: March 14, 2008Publication date: September 17, 2009Applicant: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: Lester D. Nelson, Elizabeth F. Churchill