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Bhattacharya, CA

Ashmit Bhattacharya, Pleasanton, CA US

Patent application numberDescriptionPublished
20110137740PROCESSING VALUE-ASCERTAINABLE ITEMS - Techniques are provided for allowing a merchant to process third party closed-loop instruments (such as gift cards) as if the closed-loop instruments were open-loop instruments. A customer provides card data of a third party gift card to a merchant, e.g., online or in a merchant store, for the purchase of one or more items provided by the merchant. The merchant sends the gift card data to an intermediary that deducts at least a portion of the balance of the gift card. The intermediary sends an offer for the gift card to the customer. If the customer accepts the offer, then the merchant applies the offer towards the total purchase price of the one or more items.06-09-2011
20120059736PROCESSING VALUE-ASCERTAINABLE ITEMS - Techniques are provided for allowing a merchant to process third party closed-loop instruments (such as gift cards) as if the closed-loop instruments were open-loop instruments. A customer provides card data of a third party gift card to a merchant, e.g., online or in a merchant store, for the purchase of one or more items provided by the merchant. The merchant sends the gift card data to an intermediary that deducts at least a portion of the balance of the gift card. The intermediary sends an offer for the gift card to the customer. If the customer accepts the offer, then the merchant applies the offer towards the total purchase price of the one or more items.03-08-2012

Deepta Bhattacharya, San Francisco, CA US

Patent application numberDescriptionPublished
20100226927SELECTIVE IMMUNODEPLETION OF ENDOGENOUS STEM CELL NICHE FOR ENGRAFTMENT - The present invention provides a clinically applicable method of stem cell transplantation that facilitates engraftment and reconstitutes immunocompetence of the recipient without requiring radiotherapy or chemotherapy, and without development of GVHD or graft rejection. Aspects of the present invention are based on the discovery that the depletion of the endogenous stem cell niche facilitates efficient engraftment of stem cells into that niche. In particular, the present invention combines the use of selective ablation of endogenous stem cells, in combination with the administration to the recipient of exogenous stem cells, resulting in efficient, long-term engraftment and tolerance.09-09-2010

Jisu Bhattacharya, Fremont, CA US

Patent application numberDescriptionPublished
20080298362SESSION BORDER CONTROL USING MULTIPLE PROCESSORS - In one embodiment, a router receives a call request for establishing a multimedia exchange between two remote endpoints. The router selects a processing entity to manage a subset of connections with the remote endpoints according to an endpoint identification such as a remote address included in the call request. A different processing entity manages the remaining connections with the remote endpoints. Accordingly, the load of managing signaling for establishing the multimedia exchange is balanced between a plurality of processing elements that appear externally as a single entity such that modification of remote endpoint behavior is not required.12-04-2008

Kaushik Bhattacharya, La Canada Flintridge, CA US

Patent application numberDescriptionPublished
20110159241ADHESIVE TAPE WITH ADHESION ENHANCEMENT AND DIRECTIONALITY BY MATERIAL, STRUCTURAL, AND ADHESIVE HETEROGENEITY - An adhesive system with material and structural heterogeneity is described. The adhesive system comprises a tape having a spatially heterogeneous physical property, the spatially heterogeneous physical property is configured to enhance the adhesive strength of the adhesive system when the adhesive system is in contact with a substrate and/or attain adhesion directionality. The spatially heterogeneous physical property can include a bending stiffness. Heterogeneous variations in the bending stiffness can be achieved by variations in the tape's thickness, elastic modulus and/or Poisson's ratio. Heterogeneity in thickness can be attained by mold pressing and/or patterned laminated structures. Elastic modulus heterogeneity can be achieved by masked irradiation of the tape, where the tape is made of an irradiation-sensitive material. Also described is an adhesive system with a patterned film that exhibits adhesion directionality when the adhesive system is in contact with a substrate.06-30-2011

Mayukh Bhattacharya, Fremont, CA US

Patent application numberDescriptionPublished
20090030665Automatic, Hierarchy-Independent Partitioning Method For Transistor-Level Circuit Simulation - A method of providing simulation results includes detecting any power net and rail in a circuit netlist. The circuit can be divided into net-partitioned blocks. Using these net-partitioned blocks, a topological analysis can be performed to identify cuttable/un-cuttable devices and synchronization requirements. Then, the circuit can be re-divided into rail-partitioned blocks. Using these rail-partitioned blocks, a sparse solver can identify potential partitions, but eliminate fill-ins as determined by the topological analysis. A cost function can be applied to the potential partitions as well as the identified cuttable/un-cuttable devices to determine final cut points in the circuit and dynamic inputs to the final blocks. Simulation can be performed on the final blocks and simulation results can be generated.01-29-2009

Partha Bhattacharya, Cupertino, CA US

Patent application numberDescriptionPublished
20100058165METHOD AND SYSTEM FOR DISPLAYING NETWORK SECURITY INCIDENTS - A network security monitor system groups a plurality of security events into network sessions, correlates the network sessions according to a set of predefined network security event correlation rules and generates a security incident for the network sessions that satisfy one of the network security event correlation rules. The system then presents the information of the network sessions and security incidents to a user of the system in an intuitive form. The user is able to not only learn the details of a possible network attack, but also creates new security event correlation rules intuitively, including drop rules for dropping a particular type of events.03-04-2010
20100235368Multiple Related Event Handling Based on XML Encoded Event Handling Definitions - In a method and system for collecting event information, XML documents specifying event parsing logic for respective groups of related events are loaded. Representations for the parsing logic contained in the plurality of XML documents are stored in one or more parsing trees. Events are received, including events in a plurality of groups of events. The received events are processed in accordance with the event parsing logic in the one or more parsing trees. The received events are also processed in accordance with stored program instructions that are independent of the parsing logic for the plurality of groups of events. Event information for the received events is stored. The stored event information includes information determined in accordance with the event parsing logic in at least one or more parsing trees.09-16-2010
20100332652Distributed Methodology for Approximate Event Counting - In a method and system for aggregating event information, events are received at a first plurality of nodes in a distributed system. For the events received at each node aggregated attribute information is determined in accordance with two or more rules and stored in distinct first tables, each table storing aggregated attribute information for a respective rule of the two or more rules. At each node of the first plurality of nodes, the two or more distinct first tables are transmitted to a respective node of a second set of nodes in the distributed system. At each node of the second set of nodes, two or more distinct second tables are generated by merging the aggregated attribute information in the tables transmitted to the node. Each rule of the two or more rules is evaluating using the aggregated attribute information obtained from a corresponding table of the second tables.12-30-2010

Patent applications by Partha Bhattacharya, Cupertino, CA US

Pratip Bhattacharya, Pasadena, CA US

Patent application numberDescriptionPublished
20090264732IMAGING AGENTS AND METHODS OF USE THEREOF - The present invention relates to compositions and methods useful in connection with magnetic resonance imaging. In various embodiments, the invention employs the PASADENA polarization technique to prepare contrast agents that target complementary molecules in the body and/or that are processed through predetermined, natural metabolic pathways. The invention includes methods of using the contrast agents and kits including the same. In one embodiment, a diagnostic and prognostic method relating to Alzheimer's disease is described. Further embodiments relate to medical devices including the contrast agents.10-22-2009
20100092391IMAGING AGENTS AND METHODS OF USE THEREOF - Compositions and methods useful in connection with magnetic resonance imaging are provided. Metabolites hyperpolarized by dynamic nuclear polarization are used as reporter molecules in nuclear magnetic resonance (“NMR”) spectroscopy to study metabolic pathways and diagnose disease states. The reporter molecules include hyperpolarized glutamine and hyperpolarized acetate. The invention includes the reporter molecules, compositions including the reporter molecules in pharmaceutically acceptable carriers, methods for studying metabolic pathways that include introducing one or more of the reporter molecules to a mammalian subject and imaging a target substance using NMR spectroscopy, and kits useful in studying metabolic pathways that incorporate one or more of the reporter molecules and instructions for their use.04-15-2010
20100233089IMAGING OF GENETIC MATERIAL WITH MAGNETIC RESONANCE - A method for imaging genetic material such as DNA, RNA and genes by magnetic resonance imaging incorporating hyperpolarization techniques, such as PASADENA or DNP may be used in various app metabolomics, medical diagnosis and genetic research.09-16-2010
20110095759METHODS AND APPARATUS FOR PASADENA HYPERPOLARIZATION - The present subject matter relates to methods and apparatus for using hyperpolarization to improve imaging. Am exemplary embodiment, a PASADENA polarizer, is capable of delivering 2.5-5 ml of highly hyperpolarized biological 04-28-2011

Patent applications by Pratip Bhattacharya, Pasadena, CA US

Saibal Bhattacharya, San Mateo, CA US

Patent application numberDescriptionPublished
20090327037System and Methods for Pricing Markdown with Model Refresh and Reoptimization - A system and method for tuning markdown plans is provided. Such a system and method may include configuring initial rule set. Initial Demand models are generated. A first optimization for inventory pricing may be received from the price optimization system. The first optimization uses the initial demand models and cost data. A markdown plan is generated by applying the initial rule set to the first optimization. The plan is implemented. Updated data may be received which mandates a re-optimization of the plan. Demand models are refreshed using the updated data. Initial rule set is updated by cross referencing plan history with the initial rule set and subtracting rule events that have previously occurred. A second optimization is received which uses the refreshed demand models and cost data. Then, the markdown plan is re-optimized by applying the updated rule set to the second optimization. The re-optimized markdown plan is reported, approved and implemented.12-31-2009

Subhasis Bhattacharya, Walnut Creek, CA US

Patent application numberDescriptionPublished
20090159493Targeted hydrogenation hydrocracking - This invention is directed to a process scheme in which a partial conversion hydrocracking (HCR) unit, preferably preceded by a hydrotreating unit, feeds unconverted oil to a FCC (fluid catalytic cracking ) unit. Most refineries run the FCC unit at the full capacity for optimal asset utilization. During shutdowns of Residue Desulfurization unit(s) which feed an FCC unit, it is desirable to reduce the conversion in the FCC feed hydrocracker. In this way, the feed to FCC unit is maximized. Jet and Diesel products that conform to specifications may be produced during low conversion HCR operation. Furthermore, undesirable over-saturation of the unconverted oil (UCO) from the HCR unit feeding the FCC unit can be avoided. Excess hydrogen consumption can also be avoided. Normally, further aromatic saturation of the middle distillate products from a low conversion HCR is achieved in a separate, post treatment, unit.06-25-2009
20100200459SELECTIVE STAGING HYDROCRACKING - This invention is directed to a high conversion hydrocracking (HCR) unit to produce premium middle distillate fuel. Unconverted oil which is low in sulfur is fed to a Fluid Catalytic Cracking (FCC) unit. The process results in reduced hydrogen consumption and optimum reactor capacity. Feed is hydrotreated and separated into liquid and vapor streams. The vapor stream is passed to further processing and light ends recovery. The liquid stream is passed to a vacuum distillation column, where it is separated into at least three streams, the first stream comprising low boiling products and light ends, a second, higher boiling stream comprising the feed to a second hydroprocessing zone and third stream comprising unconverted oil. The second stream is passed to the second hydroprocessing zone, producing effluents which boil in the distillate range. The second hydroprocessing zone is generally a fuels hydrocracking unit.08-12-2010
20120005949SOLVENT-ENHANCED BIOMASS LIQUEFACTION - The present invention provides an improved method for solvent liquefaction of biomass to produce liquid products such as transportation fuel. The method uses a novel solvent combination that promotes liquefaction relatively quickly, and it reduces the need to transport large amounts of hydrogen or hydrogen-carrying solvents. It operates at lower pressure than previous methods, does not require a catalyst or hydrogen gas or CO input, and provides very high conversion of biomass into a bio-oil that can be further processed in a petroleum refinery. It also beneficially provides a way to recycle a portion of the crude liquefaction product for use as part of the solvent combination for the biomass liquefaction reaction.01-12-2012

Patent applications by Subhasis Bhattacharya, Walnut Creek, CA US

Sumit Bhattacharya, Carlsbad, CA US

Patent application numberDescriptionPublished
20120127030TIGHT OPTICAL INTEGRATION (TOI) OF IMAGES WITH GPS RANGE MEASUREMENTS - A method of determining the position of a user in 3D space is disclosed. In one example, the method comprises utilizing range measurements from one or more GPS satellite vehicles, angular information of a camera located at the user position, and a camera image associated with one or more known markers. The method further comprises determining the angular information of the camera by determining a direction cosine matrix between a camera frame of reference and an earth frame of reference, and designating unit vectors that individually extend from a position within the camera image associated with one of the known markers through the camera focal point to the respective known marker The method also includes integrating into an ordinary least squares matrix, the GPS range measurements, the angular information of the camera, and the unit vectors, and calculating the user position by solving the ordinary least squares matrix.05-24-2012

Surajit Bhattacharya, Thousand Oaks, CA US

Patent application numberDescriptionPublished
20110061047Licensing Software and Licensing Propagation Mechanism for Embedded Systems in Chassis and Stacked Environments - A method of validating a license for a software application installed on a switch includes receiving a license file generated to provide a license for the software application, in which the license file contains a license key and license information for the switch, installing the license file on the switch to activate the license, validating the license internally on the switch using the license key within the license file and storing the license information associated with the license on the switch.03-10-2011

Tanmoy Bhattacharya, Oakland, CA US

Patent application numberDescriptionPublished
20100104596ACUTTE TRANSMITTED HIV ENVELOPE SIGNATURES - The present invention relates, in general, to human immunodeficiency virus (HIV) and, in particular, to a method of inducing an immune response to HIV in a patient and to immunogens suitable for use in such a method. The invention also relates to diagnostic test kits and methods of using same.04-29-2010

Tarun Kumar Bhattacharya, San Jose, CA US

Patent application numberDescriptionPublished
20080207219Estimating Whether Or Not A Wireless Terminal Is In A Zone Using Radio Navigation - A method for estimating whether or not a wireless terminal is in a zone is described. The method is based on the following observation: when a wireless terminal is at a particular location, the values of the traits of the ambient electromagnetic signals that vary with location represent a “fingerprint” or “signature” for that location. This enables the location of a wireless terminal to be estimated by comparing the observed values of the traits of the ambient electromagnetic signals with the fingerprint for each potential location for the wireless terminal.08-28-2008
20080207222Estimating Whether Or Not A Wireless Terminal Is In A Geographic Zone Using Pattern Classification - A method and apparatus are disclosed for estimating whether or not a wireless terminal is in a geographic zone. The illustrative embodiment employs a pattern classifier that is trained on traits of electromagnetic signals at various locations. A computer-executable program is then generated based on the trained pattern classifier, and the program is installed and executed on a subscribed identity module of the terminal.08-28-2008
20100245115Estimating the Location of a Wireless Terminal Based on Signal Path Impairment - A technique for estimating the location of a wireless terminal at an unknown location in a geographic region is disclosed. The technique is based on the recognition that there are traits of electromagnetic signals that are dependent on topography, the receiver, the location of the transmitter, and other factors. For example, if a particular radio station is known to be received strongly at a first location and weakly at a second location, and a given wireless terminal at an unknown location is receiving the radio station weakly, it is more likely that the wireless terminal is at the second location than at the first location.09-30-2010
20100329144Estimating the Location of a Wireless Terminal Based on Calibrated Signal-Strength Measurements - A process and machine for estimating the location of a wireless terminal is disclosed. The illustrative embodiment of the present invention is based on the observation that the signal strength of a signal from a transmitter is different at some locations, and, therefore, the location of a wireless terminal can be estimated by comparing the signal strength it currently observes against a map or database that correlates locations to signal strengths. In accordance with a first example, if a particular radio station is known to be received well at a first location and poorly at a second location, and a given wireless terminal at an unknown location is receiving the radio station poorly, it is more likely that the wireless terminal is at the second location than it is at the first location.12-30-2010
20110156950Positioning System and Positioning Method - It is an object of the present invention to perform positioning at favorable positioning precision and in a favorable positioning time, according to whether a receiver is indoors or outdoors. A positioning server 06-30-2011
20110156951Positioning System and Positioning Method - It is an object of the present invention to obtain a positioning result corresponding to the state of a receiver in less time. A positioning server 06-30-2011
20110156952Positioning System and Positioning Method - It is an object of the present invention to perform positioning at the proper positioning time and positioning precision in response to a requirement with respect to positioning. A positioning server 06-30-2011
20110187525Search Area Reduction For Estimating the Location of a Wireless Terminal Based On Indoor Detection - A method of using a non-GPS-derived technique to estimate the location of an Assisted-GPS-enabled wireless terminal for the purposes of generating location-specific assistance data for the wireless terminal is disclosed. The wireless terminal then uses the assistance data to acquire and process one or more GPS signals and to derive information that is probative of the wireless terminal's location. The GPS-derived location information is then combined with non-GPS-derived location to form an estimate of the location of the wireless terminal that is better than can be derived from either alone. This combination of GPS-derived and non-GPS techniques is particularly useful when the wireless terminal can only acquire one or two GPS signals because it is not possible to determine the location of the wireless terminal with only two GPS signals alone.08-04-2011
20110189960Estimating Whether A Wireless Terminal Is Indoors Using Pattern Classification - A method and apparatus for estimating whether or not a wireless terminal is indoors are disclosed. The illustrative embodiment employs a pattern classifier that is trained on a plurality of input/output mappings, where each mapping corresponds to a respective location, the output of the mapping is a Boolean value that indicates whether the location is indoors, and the input of the mapping is based on empirical and predicted signal data for the location. In accordance with the illustrative embodiment, a computer-executable program is generated based on the trained pattern classifier. The computer-executable program estimates whether or not a wireless terminal is indoors based on empirical data reported by the terminal, and on a location estimate for the terminal that might be crude or inaccurate (e.g., based on Cell Identifier [Cell-ID], GPS, etc.).08-04-2011

Patent applications by Tarun Kumar Bhattacharya, San Jose, CA US