Patents Represented by Attorney, Agent or Law Firm Bao Tran
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Patent number: 8089993Abstract: A sliceable router includes a forwarding engine; a routing engine coupled to the forwarding engine; multiple virtual packet interfaces coupled to the forwarding engine, wherein the interfaces shares an optical orthogonal frequency-division multiple accesses (OFDMA)-based programmable transceiver for interface virtualization; and one or more physical packet interfaces coupled to the forwarding engine.Type: GrantFiled: September 9, 2008Date of Patent: January 3, 2012Assignee: NEC Laboratories America, Inc.Inventors: Wei Wei, Ting Wang
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Patent number: 8090665Abstract: Systems and methods are disclosed to find dynamic social networks by applying a dynamic stochastic block model to generate one or more dynamic social networks, wherein the model simultaneously captures communities and their evolutions, and inferring best-fit parameters for the dynamic stochastic model with online learning and offline learning.Type: GrantFiled: November 25, 2008Date of Patent: January 3, 2012Assignee: NEC Laboratories America, Inc.Inventors: Tianbao Yang, Shenghuo Zhu, Yun Chi, Yihong Gong
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Patent number: 8091006Abstract: Methods and apparatus for designing spherical lattice codebooks for use in data transmission systems are provided. A spherical lattice codebook is constructed by determining the channel statistics of one or more channels, which can be accomplished by observing a sufficiently large set of channel realizations. After determining the channel statistics, an expression for the error probability of the decoder or expressions for bounds on the error probability and expressions for the corresponding gradients are determined. The gradient is then used in an optimization technique to produce a spherical lattice codebook which is subsequently used for transmission.Type: GrantFiled: March 30, 2007Date of Patent: January 3, 2012Assignee: NEC Laboratories America, Inc.Inventors: Narayan Prasad, Xiaodong Wang, Mohammad Madihian
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Patent number: 8031628Abstract: Systems and methods are disclosed to probe a network includes generating a set of probing pairs from a network topology for unicast network delay tomography; probing the network using monitoring hosts in the network; and determining network performance from the probing results.Type: GrantFiled: June 4, 2009Date of Patent: October 4, 2011Assignee: NEC Laboratories America, Inc.Inventors: Yu Gu, Geoff Jiang, Vishal Singh, Yueping Zhang
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Patent number: 7958064Abstract: Systems and methods are disclosed that performs active feature probing using data augmentation. Active feature probing is a means of actively gathering information when the existing information is inadequate for decision making. The data augmentation technique generates factitious data which complete the existing information. Using the factitious data, the system is able to estimate the reliability of classification, and determine the most informative feature to probe, then gathers the additional information. The features are sequentially probed until the system has adequate information to make the decision.Type: GrantFiled: October 10, 2007Date of Patent: June 7, 2011Assignee: NEC Laboratories America, Inc.Inventors: Shenghuo Zhu, Yihong Gong
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Patent number: 7929478Abstract: An optimal resource allocation strategy for OFDMA multi-hop wireless networks is disclosed. The system allocates one or more resources in a multi-hop network by solving one or more higher-layer sub-problem; solving one or more physical layer and media access control (PHY/MAC) layer sub-problems per tone per time slot with one of cooperative relaying of radio signals or spatial reusing of radio spectrum; updating prices; and allocating radio resources based on the PHY/MAC layer sub-problems.Type: GrantFiled: December 10, 2007Date of Patent: April 19, 2011Assignee: NEC Laboratories America, Inc.Inventors: Seung-Jun Kim, Xiaodong Wang, Mohammad Madihian
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Patent number: 7870083Abstract: Systems and methods are disclosed to predict one or more missing elements from a partially-observed matrix by receiving one or more user item ratings; generating a model parameterized by matrices U, S, V; applying the model to display an item based on one or more predicted missing elements; and applying the model at run-time and determining UiTSVj.Type: GrantFiled: October 10, 2007Date of Patent: January 11, 2011Assignee: NEC Laboratories America, Inc.Inventors: Shenghuo Zhu, Kai Yu, Yihong Gong
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Patent number: 7853485Abstract: The present invention is directed generally to providing systems and methods for data analysis. More specifically, embodiments may provide system(s) and method(s) including dynamic user modeling techniques to capture the relational and dynamic patterns of information content and/or users' or entities' interests. Various embodiments may include system(s) and method(s) that are based on, for example, the past history of content semantics, temporal changes, and/or user community relationship. Various embodiments may include modeling and/or analysis of the dynamic nature of an item of interest's value to a user(s)/entity(ies) over time. The dynamic factors may be consider in any manner, such as, individually or combined, sequentially or simultaneously, etc.Type: GrantFiled: November 22, 2006Date of Patent: December 14, 2010Assignee: NEC Laboratories America, Inc.Inventors: Xiaodan Song, Belle L Tseng
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Patent number: 7839945Abstract: Systems and methods are disclosed to generate a codebook for channel state information by generating a random codebook; partitioning channel state information into a set of nearest neighbors for each codebook entry based on a distance metric; and updating the codebook by finding a centroid for each partition.Type: GrantFiled: December 5, 2007Date of Patent: November 23, 2010Assignee: NEC Laboratories America, Inc.Inventors: Mohammad Ali Khojastepour, Xiaodong Wang, Mohammad Mahidian
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Patent number: 7831538Abstract: Systems and methods are disclosed for clusterizing information by determining similarity matrix for historical information and similarity matrix for current information; generating an aggregated similarity matrix (aggregated kernel); and applying evolutionary spectral clustering on the aggregated kernel to a content stream to produce one or more clusters.Type: GrantFiled: October 18, 2007Date of Patent: November 9, 2010Assignee: NEC Laboratories America, Inc.Inventors: Yun Chi, Xiaodan Song, Koji Hino, Belle L. Tseng
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Patent number: 7788264Abstract: Systems and methods for classifying documents each having zero or more links thereto include generating a link matrix; generating a document term matrix; and jointly factorizing the document term matrix and the link matrix.Type: GrantFiled: October 10, 2007Date of Patent: August 31, 2010Assignee: NEC Laboratories America, Inc.Inventors: Shenghuo Zhu, Kai Yu, Yun Chi, Yihong Gong
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Patent number: 7736009Abstract: This invention describes a hinged dust pan comprising a light source that is designed to illuminate a floor or other flat work surface in front of the dustpan for the purpose of locating and collecting small hard to see objects. This can be for the purpose of cleaning or simply locating a small valuable object. The light source is fashioned such that it provides a very low grazing angle of illumination that it skims across a surface. Small objects or particles are visible as being brighter than the surroundings and set off by a long shadow on the side of the particle away from the light.Type: GrantFiled: August 27, 2008Date of Patent: June 15, 2010Inventor: Richard J. Quattrini
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Patent number: 7736008Abstract: This invention describes a dust pan comprising a light source that is designed to illuminate a floor or other flat work surface in front of the dustpan for the purpose of locating and collecting small hard to see objects. This can be for the purpose of cleaning or simply locating a small valuable object. The light source is fashioned such that it provides a very low grazing angle of illumination that it skims across a surface. Small objects or particles are visible as being brighter than the surroundings and set off by a long shadow on the side of the particle away from the light.Type: GrantFiled: August 30, 2007Date of Patent: June 15, 2010Inventor: Richard J Quattrini, Jr.
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Patent number: 7243079Abstract: A user interface, methods and tools for manipulating, displaying and ordering image prints from an on-line print service. One user interface includes a personalized account summary including an image selected from the user's archives. Another user interface includes a first field including an image to be printed and a second field including a text box for specifying a message to be printed on the image print. Another user interface includes a drop spot, the drop spot being a designated portion of the user interface on to which a user selection can be dragged and dropped where the drop spot has an associated code portion operable to process the user selection dropped on the drop spot. Methods include methods for designating multiple recipients for an image to be distributed using an on-line print service and methods for updating a user's address book during an order method for designating multiple recipients for an image at an on-line print service.Type: GrantFiled: November 22, 2000Date of Patent: July 10, 2007Assignee: Shutterfly, Inc.Inventors: Eva Manolis, Chase Garfinkle, Hwei Mien Quek, Su Mien Quek
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Patent number: 6830450Abstract: A system and method for repositioning teeth in a patient jaw includes an attachment bonded to a tooth. The attachment has at least one force receiving component for receiving a force. A polymeric shell repositioning appliance is positioned over at least some of the teeth in the patient jaw. The polymeric shell has at least one force transmitting component for engaging the force receiving component to form a locus of engagement. The locus of engagement transmits the force and moves but is maintained as the tooth is repositioned. In specific embodiments the locus of engagement is maintained over a substantial range of motion. The force transmitted at the locus of engagement increases in response to the tooth lagging an intended position. A space between the positioned appliance and the tooth permits the tooth to move into an intended position.Type: GrantFiled: April 18, 2002Date of Patent: December 14, 2004Assignee: Align Technology, Inc.Inventors: Peter G. Knopp, Aaron J. Miller, Rob Van Den Berg
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Patent number: 6802713Abstract: Methods and corresponding apparatus for segmenting an orthodontic treatment path into clinically appropriate substeps for repositioning the teeth of a patient include providing a digital finite element model of the shape and material of each of a sequence of appliances to be applied to a patient; providing a digital finite element model of the teeth and related mouth tissue of the patient; computing the actual effect of the appliances on the teeth by analyzing the finite elements models computationally; and evaluating the effect against clinical constraints. The appliances can be braces, polymeric shells, or other forms of orthodontic appliance.Type: GrantFiled: October 22, 2003Date of Patent: October 12, 2004Assignee: Align Technology, Inc.Inventors: Muhammad Chishti, Elena I. Pavlovskaia, Gregory P. Bala, Brian Freyburger
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Patent number: 6790035Abstract: Systems and methods are disclosed for forming a pontic in a polymeric shell dental appliance, including providing a polymeric shell dental appliance of the type which is removably placeable over a patient's dentition, said shell having a concave trough which conforms to the teeth when the appliance is placed over the dentition and a location in the trough corresponding to a missing tooth; and depositing a flexible, durably affixed material in the location to form the pontic.Type: GrantFiled: September 28, 2001Date of Patent: September 14, 2004Assignee: Align Technology, Inc.Inventors: Robert E. Tricca, Eric Kuo, Peter G. Knopp, Choi Woncheol, Craig R. Bruns
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Patent number: 6786721Abstract: Methods and apparatus fit a set of upper and lower teeth in a masticatory system by generating a computer representation of the masticatory system and computing an occlusion based on interactions in the computer representation of the masticatory system.Type: GrantFiled: April 26, 2002Date of Patent: September 7, 2004Assignee: Align Technology, Inc.Inventors: Muhammad Chishti, Andrew Beers
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Patent number: 6783360Abstract: A computer-implemented method treats teeth by generating a digital arrangement of teeth; specifying a sequence of tooth movements to move the teeth to a target arrangement; and generating one or more appliances in accordance with the specified sequence of tooth movements, the appliances comprise polymeric shells having cavities and wherein the cavities of successive shells have different geometries shaped to receive and resiliently reposition teeth from one arrangement to a successive arrangement.Type: GrantFiled: December 13, 2000Date of Patent: August 31, 2004Assignee: Align Technology, Inc.Inventor: Zia Chishti
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Patent number: 6783604Abstract: Apparatus for cleaning removable oral appliances, such as tooth repositioning aligners, comprise a base having a tray for holding the appliance in a bath of cleaning solution. A low-frequency driver is provided in the base for reciprocating the tray about a horizontal or vertical axis to wash the cleaning solution over the appliance. Usually, the apparatus will further comprise a cradle which is mounted to reciprocate about a horizontal axis within the base. The cradle defines a receptacle which removably receives the cleaning tray. The cleaning tray is preferably reciprocated at frequency in the range from 1 Hz to 10 Hz, usually in the range from 2 Hz to 5 Hz.Type: GrantFiled: September 28, 2001Date of Patent: August 31, 2004Assignee: Align Technology, Inc.Inventor: Robert E. Tricca