Dasgupta, US
Abhijit Dasgupta, Germantown, MD US
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20140276167 | HEALTH MONITORING, SURVEILLANCE AND ANOMALY DETECTION - A wearable patch and method for automatically monitoring, screening, and/or reporting events related to one or more health conditions (e.g., sleeping or breathing disorders, physical activity, arrhythmias) of a subject. | 09-18-2014 |
Anindya Dasgupta, Anderson, SC US
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20120258532 | DRUG RESISTANT IMMUNOTHERAPY FOR TREATMENT OF A CANCER - The present disclosure is generally related to methods for combining chemotherapy and immunotherapy for the treatment of a cancer. The methods also relate to generating a drug-resistant cytotoxic immune cell line and uses thereof in conjunction with cytotoxic drugs. | 10-11-2012 |
20150017137 | DRUG RESISTANT IMMUNOTHERAPY FOR TREATMENT OF A CANCER - The present disclosure is generally related to methods for combining chemotherapy and immunotherapy for the treatment of a cancer. The methods also relate to generating a drug-resistant cytotoxic immune cell line and uses thereof in conjunction with cytotoxic drugs | 01-15-2015 |
Anindya Dasgupta, Portland, OR US
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20150179567 | USING MATERIALS WITH DIFFERENT ETCH RATES TO FILL TRENCHES IN SEMICONDUCTOR DEVICES - An embodiment includes a metal interconnect structure, comprising: a dielectric layer on a substrate; an opening in the dielectric layer, wherein the opening has opening sidewalls and exposes a conductive region of at least one of the substrate and an additional interconnect structure; a first atomic layer deposition (ALD) layer on the conductive region and the opening sidewalls; a second ALD layer on a portion of the first ALD layer, and a third ALD layer within the opening and on the first ALD layer. Other embodiments are described herein. | 06-25-2015 |
Anirbran Dasgupta, Berkeley, CA US
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20130042311 | MULTI-STEP CAPTCHA WITH SERIAL TIME-CONSUMING DECRYPTION OF PUZZLES - A system and method for implementing a multi-step challenge and response test includes steps or acts of: using an input/output subsystem for presenting a series of challenges to a user that require said user to correctly solve each challenge before a next challenge is revealed to the user; receiving the user's response to each challenge; and submitting a last response in the series of challenges to a server for validation. The method further includes: using a processor device configured to perform for each challenge in the series of challenges: internally validating the response by comparing the user's response to a correct response; and using the user's response, decrypting the next challenge to reveal the next challenge; wherein the next challenge remains obfuscated until a previous challenge is correctly solved. | 02-14-2013 |
Arindam Dasgupta, West Hartford, CT US
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20090007882 | Compound cycle rotary engine - A compound cycle engine system has a rotary engine, which rotary engine generates exhaust gas. The system further has a compressor for increasing the pressure of inlet air to be supplied to the engine to a pressure in the range of from 3.0 to 5.0 atmospheres and an intercooler for providing the inlet air to the engine at a temperature in the range of from 150 to 250 degrees Fahrenheit. The system further has one or more turbines for extracting energy from the exhaust gas. The Miller Cycle is implemented in the rotary engine, enabling the compression ratio to be lower than the expansion ratio, allowing the overall cycle to be optimized for lowest weight and specific fuel consumption. | 01-08-2009 |
20100242736 | PRESSURE-BASED DISSOLVED GAS REMOVAL SYSTEM - A fuel gas removal system includes a venturi for reducing a pressure of the fuel, a bubble separator containing media to assist in the formation of gas bubbles within the fuel to separate the gas bubbles from the fuel, and a port to remove gas bubbles created by the reduction of pressure of the fuel and the bubble separator. | 09-30-2010 |
20130078541 | JET FUEL BASED HIGH PRESSURE SOLID OXIDE FUEL CELL SYSTEM - A power system for an aircraft includes a solid oxide fuel cell system which generates electric power for the aircraft and an exhaust stream; and a heat exchanger for transferring heat from the exhaust stream of the solid oxide fuel cell to a heat requiring system or component of the aircraft. The heat can be transferred to fuel for the primary engine of the aircraft. Further, the same fuel can be used to power both the primary engine and the SOFC. A heat exchanger is positioned to cool reformate before feeding to the fuel cell. SOFC exhaust is treated and used as inerting gas. Finally, oxidant to the SOFC can be obtained from the aircraft cabin, or exterior, or both. | 03-28-2013 |
20130239542 | STRUCTURES AND METHODS FOR INTERCOOLING AIRCRAFT GAS TURBINE ENGINES - A turbine engine has a fan comprising a duct and supporting struts, a first compressor configured to pressurize inlet air, and a second compressor configured to further pressurize the inlet air. A cooling circuit is located to cool the inlet air after the inlet air is pressurized by the first compressor and before the inlet air is further pressurized by the second compressor, and includes at least intercooler configured to transfer heat from inlet air to a secondary fluid heat sink. | 09-19-2013 |
Aritra Dasgupta, Wappingers Falls, NY US
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20140070307 | MULTI-LAYER WORK FUNCTION METAL REPLACEMENT GATE - Embodiments relate to a field-effect transistor (FET) replacement gate apparatus. The apparatus includes a channel structure including a base and side walls defining a trench. A high-dielectric constant (high-k) layer is formed on the base and side walls of the trench. The high-k layer has an upper surface conforming to a shape of the trench. A first layer is formed on the high-k layer and conforms to the shape of the trench. The first layer includes an aluminum-free metal nitride. A second layer is formed on the first layer and conforms to the shape of the trench. The second layer includes aluminum and at least one other metal. A third layer is formed on the second layer and conforms to the shape of the trench. The third layer includes aluminum-free metal nitride. | 03-13-2014 |
Arunima Dasgupta, Essex Junction, VT US
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20120159419 | MODEL LIBRARY IMPLEMENTATION AND METHODOLOGY FOR WORST CASE PERFORMANCE MODELING FOR SRAM CELLS - Worst case performance of an SRAM cell may be simulated more accurately with less intensive computations. An embodiment includes determining, by a processor, a process corner G of an SRAM cell, having pull-down, pass-gate, and pull-up devices, process corner G being defined as the worst performance of the cell when only global variations of parameters of the SRAM cell are included, setting each of the pull-down, pass-gate, and pull-up devices at process corner G, performing, on the processor, a number of Monte Carlo simulations of the SRAM cell devices around process corner G with only local variations of the parameters, generating a normal probability distribution for I | 06-21-2012 |
Ashish K. Dasgupta, Ann Arbor, MI US
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20080302768 | Zero-Gap Laser Welding - A method for laser welding a pair of overlapping metal members together and a weld joint produced by the method. At least one of the metal members has a protective metal coating. The method includes applying a thin layer of an alloying agent on at least one of the metal members between the metal members, melting the protective metal coating and the alloying agent to form an alloy that is disposed between the overlapping members with zero gap, welding the overlapping metal members together to form a weld, and controlling the amount of the alloying agent such that the extended solid solubility of the alloying agent in the weld is not exceeded. | 12-11-2008 |
Ashish K. Dasgupta, Troy, MI US
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20080210674 | OPTICAL SENSOR FOR QUALITY MONITORING OF A WELDING PROCESS - Disclosed is the design and working principle of a welding monitoring system that can monitor the spectra of zinc and iron in the plasma generated during a welding process involving zinc-coated steel. The monitoring system is capable of monitoring multiple parameters, including spectral line intensity, electron temperature, and ratio of zinc and iron composition in the plasma. The results can then be used individually or in combination to predict resulting weld quality and generate appropriate feedback control signals. | 09-04-2008 |
Bhaskar Dasgupta, Arlington Heights, IL US
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20140122190 | SYSTEM AND METHODS FOR DETECTION AND SELECTION OF A RESOURCE AMONG AVAILABLE RESOURCES - Detecting whether a resource is available and facilitating the selection of a resource from a set of resources, some of which may be available or unavailable at any given time can be a challenge. One such resource is a suitable place to park a vehicle including automobile, motorcycle, and bicycle. Finding parking can be a significant challenge in population dense environments. Certain embodiments of the present invention are configured to assist users with quickly and efficiently finding a parking slot near his or her location or destination. The system may be configured to generate parking slot suggestions based on one or more of a wide range of individual or group preference criteria. Advantageously, facilitating quick and efficient parking reduces traffic congestion and pollution. | 05-01-2014 |
Bidisha Dasgupta, Spring House, PA US
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20140011879 | SERUM MARKERS FOR IDENTIFICATION OF CUTANEOUS SYSTEMIC SCLEROSIS SUBJECTS - Tools for diagnosis and management of patients suspected of having or having been previously diagnosed with systemic sclerosis are based on the determination one or more of the markers described herein, specifically, the markers having the amino acid sequence of SEQ ID NOS: 1-62 and 66-76 in a sample from the subject. Specific marker ratios and subsets of markers and ratios identify a patient and further subclassify the patient. The information may be used prospectively to study the response of subclassified patients to existing or novel therapeutic strategies. | 01-09-2014 |
Biplab Dasgupta, St. Louis, MO US
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20100047177 | METHODS AND COMPOSITIONS FOR TREATING NEUROPATHIES - Methods of treating or preventing axonal degradation in neuropathic diseases and neurological disorders in mammals are disclosed. The methods can comprise administering to the mammal an effective amount of an agent that acts at least in part by increasing sirtuinAMPK activity, LKB 1 activity and/or CaMKKβ activity in diseased and/or injured neurons. The methods can also comprise administering to the mammal an effective amount of an agent that acts by increasing NAD activity in diseased and/or injured neurons, alone or in combination with agents that act by other mechanisms. Also disclosed are methods of screening agents for treating a neuropathies and recombinant vectors for treating or preventing such neuropathies. | 02-25-2010 |
20100221748 | AMPK modulation as a method of regulating stem cell and cancer stem cell proliferation, self-renewal and differentiation - Methods are disclosed for decreasing stem cell proliferation, including cancer stem cell proliferation. These methods comprise administering to stem cells inhibitors of AMP activated protein kinase (AMPK). Methods for promoting stem cell growth by increasing stem cell proliferation, self-renewal and/or differentiation are also disclosed. These methods comprise administering AMPK activators to stem cells. Methods of achieving selective differentiation of stem cells are also disclosed. These methods comprise administering small molecules to stem cells that modulate AMPK activity. Applications of these methods are also disclosed, such as methods of increasing numbers of neuronal progenitor cells. These methods can be used therapeutically, such as for repair of spinal cord injuries, or for stimulating neurogenesis in the hippocampus, and other cell-based therapies. The methods can also be used for screening of compounds that can be activators or inhibitors of AMPK activity. | 09-02-2010 |
20140011890 | METHODS AND COMPOSITIONS FOR TREATING NEUROPATHIES - Methods of treating or preventing axonal degradation in neuropathic diseases and neurological disorders in mammals are disclosed. The methods can comprise administering to the mammal an effective amount of an agent that acts at least in part by increasing sirtuin AMPK activity, LKB | 01-09-2014 |
Bireshwar Dasgupta, East Hampton, CT US
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20150133428 | NOVEL SUBSTITUTED PYRAZOLO-PIPERAZINES AS CASEIN KINASE 1 D/E INHIBITORS - The invention provides compounds of Formula (I): | 05-14-2015 |
Bivash Ranjan Dasgupta, Hamden, CT US
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20090155321 | COMPOSITIONS WITH ENCAPSULATED COLORING AGENTS AND METHOD TO IMPART A HEALTHY SKIN APPEARANCE - A cosmetic composition and method of imparting a healthy appearance to skin is provided which includes using a composition formed with about 0.1 to about 20% by weight of the composition of beads, from about 1 to about 80% by weight of the beads of a first coloring agent incorporated within a matrix of the beads, and a cosmetically acceptable carrier, the composition having a hue less than 25°, the beads being coated and having an exterior color other than that of the first coloring agent. | 06-18-2009 |
20090155373 | COSMETIC COMPOSITIONS AND METHOD WHICH IMPART A HEALTHY APPEARANCE TO SKIN - A cosmetic product and method of imparting a healthy appearance to skin is provided which includes using a composition formed with about 0.1 to about 20% by weight of the composition of beads, from about 1 to about 80% by weight of the beads of a coloring agent incorporated within a matrix of the beads, and a cosmetically acceptable carrier, the composition being delivered from a package with instructions being printed on or associated with the package indicating topical use on skin to impart a healthy appearance, and wherein the skin with the applied composition has a reflectance in the range from 510 to 600 nm, and reflectance amplitude ratios at wavelength 510/540 nm ranging from 1.10 to 1.20 and at wavelength 600/580 nm ranging from 1.35 to 1.65. | 06-18-2009 |
20120009127 | FOAM ENHANCEMENT OF FATTY ACYL GLYCINATE SURFACTANTS - A personal care cleansing composition is provided which includes a C | 01-12-2012 |
20120145171 | PERSONAL CARE IMPLEMENT WITH LOW ACTIVE CLEANSING COMPOSITION - A personal care implement is disclosed having a water insoluble absorbent/adsorbent layer attached to a water insoluble scrubbing layer and a mild, low active, low viscosity cleansing composition contained in the absorbent/adsorbent layer. A sufficient quantity of the composition is transferred on demand to the scrubbing layer by squeezing the implement. The implement produces copious quantities of lather foam and mild cleansing. | 06-14-2012 |
Dipankar Dasgupta, Germantown, TN US
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20090019289 | NEGATIVE AUTHENTICATION SYSTEM FOR A NETWORKED COMPUTER SYSTEM - The disclosed invention is a method for screening access to a computer system using a negative authentication system. Input login requests are compared against a set of detectors comprising anti-passwords and only allowed further access if they do not match any of the anti-passwords. A method of generating a set of detectors comprising anti-passwords is also disclosed. | 01-15-2009 |
Falguni Dasgupta, Bozeman, MT US
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20120184682 | BIOCOMPATIBLE AND BIODEGRADABLE POLYMERS FROM RENEWABLE NATURAL POLYPHENOLS - This invention describes the use of resveratrol and curcumin, representatives of naturally occurring polyphenols, in their native form, after hydrogenation, and as their respective allyl derivatives, individually, in combination with themselves and other commercial monomers, to make representative varieties of polymers, e.g., polycarbonates (PC), polyurethanes (PU), co-polymers and biodegradable polymers. | 07-19-2012 |
20120220749 | COMBINATIORIAL POLYMERIC COMPOSITIONS FOR DRUG DELIVERY - The present invention is directed towards the synthesis of polymeric drug delivery compositions which would address some of the important and difficult to realize aspects of polymer based drug delivery systems by being, biocompatible, stable, capable of achieving desired drug loading, and safe from accidental release while being non-toxic, easy to fabricate and safe for the environment. | 08-30-2012 |
Gautam Dasgupta, Briarcliff Manor, NY US
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20120179421 | Emergency Response Management Apparatuses, Methods and Systems - The EMERGENCY RESPONSE MANAGEMENT APPARATUSES, METHODS AND SYSTEMS (“ERMS”) transform emergency related inputs and sensor information into a threat indication category, which is distributed to individuals and/or first responders for managing the threat. In one implementation, the method includes an emergency management processor-implemented method that receives sensor readings from one or more sensor devices and generates risk factors for the at least one sensor device. The generated risk factors are then curve fitted to a plurality of statistical distribution curves including both non-extreme and extreme statistical distributions, wherein each of the statistical distribution curves is indicative of a threat category. The threat category is then determined based on the generated risk factors that provide a best fit with one of the plurality of statistical distribution curves. | 07-12-2012 |
Indrani Dasgupta, Frederick, MD US
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20120231067 | VESICLE COMPOSITIONS - Vesicle compositions are provided that comprise a therapeutic compound. The vesicle compositions may be capable of releasing the therapeutic compound in response to the presence of an external trigger. The vesicle compositions may comprise a plurality of biocompatible vesicles. The biocompatible vesicles may comprise a therapeutic compound for treatment of a patient in need thereof, and one or more cross-linkages between two or more of the biocompatible vesicles, each cross-linkage comprising a chemical sensing moiety and a sensed moiety. In some embodiments, the therapeutic compound may be any compound that provides palliative, curative, or otherwise beneficial effects to a patent. | 09-13-2012 |
20120258044 | LIPID-BASED NANOPARTICLES - Lipid-based nanoparticle compositions are provided. The compositions generally comprise lipid-hydrophilic polymer-amyloid binding ligand conjugates, and may be liposomal compositions. The compositions, including the liposomal compositions, may be useful for imaging and/or the treatment of amyloid-β plaque deposits characteristic of Alzheimer's Disease. | 10-11-2012 |
Kaushik Dasgupta, Pasadena, CA US
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20130279631 | Dynamic Polarization Modulation and Control - A method for sending a data from an electromagnetic radiator by polarization modulation of an electromagnetic wave includes radiating from the radiator first and second electromagnetic waves including first and second polarizations respectively, the first polarization being different than the second polarization. The first and second electromagnetic waves form a third electromagnetic wave having a third polarization different from the first or second polarization. The method includes modulating the third polarization responsive to the data by modulating one or more parts of the third electromagnetic wave. The data is sent in the third polarization. A system for sending a data includes an oscillator adapted to generate an oscillating signal, and a phase shifter coupled to the oscillator and adapted to generate a first phase-shifted oscillating signal having a first phase. The phase shifter is adapted to vary the phase difference across a predefined range in response to the data. | 10-24-2013 |
20140354350 | SELF-HEALING TECHNIQUE FOR HIGH FREQUENCY CIRCUITS - A self-healing monolithic integrated includes an electronic circuit having a plurality of transistors. At least one sensor is disposed within and electrically coupled to the electronic circuit and configured to sense a performance metric of the electronic circuit. A plurality of actuators is disposed within the circuit. Each actuator of the plurality of actuators has electrically coupled to it a control terminal. The plurality of actuators is configured to perform a selected one of, electrically coupling at least one transistor of the plurality of transistors into the electronic circuit and electrically de-coupling at least one transistor of the plurality of transistors, in response to operation of one of the control terminals to improve the performance metric. | 12-04-2014 |
20150304094 | Dynamic Polarization Modulation and Control - A method for sending a data from an electromagnetic radiator by polarization modulation of an electromagnetic wave includes radiating from the radiator first and second electromagnetic waves including first and second polarizations respectively, the first polarization being different than the second polarization. The first and second electromagnetic waves form a third electromagnetic wave having a third polarization different from the first or second polarization. The method includes modulating the third polarization responsive to the data by modulating one or more parts of the third electromagnetic wave. The data is sent in the third polarization. A system for sending a data includes an oscillator adapted to generate an oscillating signal, and a phase shifter coupled to the oscillator and adapted to generate a first phase-shifted oscillating signal having a first phase. The phase shifter is adapted to vary the phase difference across a predefined range in response to the data. | 10-22-2015 |
Neil Dasgupta, Menlo Park, CA US
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20090238990 | SAM oxidative removal for controlled nanofabrication - Improved tip-patterned atomic layer deposition (ALD) is provided by using a scanning probe microscope (SPM) tip to define an oxide pattern in a self-assembled monolayer deposited on a substrate. The oxide pattern can directly define the ALD deposition pattern. Alternatively, the oxide pattern can be removed (e.g., with a chemical etch), and the resulting exposed substrate pattern can be used to define the ALD deposition pattern. | 09-24-2009 |
20090241232 | Prototyping station for atomic force microscope-assisted deposition of nanostructures - A localized nanostructure growth apparatus that has a partitioned chamber is provided, where a first partition includes a scanning probe microscope (SPM) and a second partition includes an atomic layer deposition (ALD) chamber, where the first partition is hermetically isolated from the second partition, and at least one SPM probe tip of the SPM is disposed proximal to a sample in the ALD chamber. According to the invention, the hermetic isolation between the chambers prevents precursor vapor from damaging critical microscope components and ensuring that contaminants in the ALD chamber can be minimized. | 09-24-2009 |
20090255580 | Quantum dot solar cell with quantum dot bandgap gradients - Efficient photovoltaic devices with quantum dots are provided. Quantum dots have numerous desirable properties that can be used in solar cells, including an easily selected bandgap and Fermi level. In particular, the size and composition of a quantum dot can determine its bandgap and Fermi level. By precise deposition of quantum dots in the active layer of a solar cell, bandgap gradients can be present for efficient sunlight absorption, exciton dissociation, and charge transport. Mismatching Fermi levels are also present between adjacent quantum dots, allowing for built-in electric fields to form and aid in charge transport and the prevention of exciton recombination. | 10-15-2009 |
20090258157 | Field-aided preferential deposition of precursors - Lateral nano-scale pattern control for atomic layer deposition can be provided by using a scanning tunneling microscope (SPM) tip to locally influence chemical reaction rates. An electric field and/or charge transfer can significantly reduce the potential energy barrier that affects reaction kinetics, and thereby significantly enhance reaction rates. By operating the ALD growth system in a regime where reaction rates without an electric field and/or charge transfer are negligible, deposition can be precisely controlled to occur only at locations defined by the SPM tip. Alternatively, the SPM tip can be used to locally inhibit ALD growth. | 10-15-2009 |
20100089866 | Method for producing tapered metallic nanowire tips on atomic force microscope cantilevers - A method of making nanowire probes is provided. The method includes providing a template having a nanoporous structure, providing a probe tip that is disposed on top of the template, and growing nanowires on the probe tip, where the nanowires are grown from the probe tip along the nanopores, and the nanowires conform to the shape of the nanopores. | 04-15-2010 |
20100240167 | Quantum confinement solar cell fabricated by atomic layer deposition - The current invention provides a method of fabricating quantum confinement (QC) in a solar cell that includes using atomic layer deposition (ALD) for providing at least one QC structure embedded into an intrinsic region of a p-i-n diode in the solar cell, where optical and electrical properties of the confinement structure are adjusted according to at least one dimension of the confinement structure. The QC structures can include quantum wells, quantum wires, quantum tubes, and quantum dots. | 09-23-2010 |
20120284882 | Prototyping Station for Atomic Force Microscope-Assisted Deposition of Nanostructures - A localized nanostructure growth apparatus that has a partitioned chamber is provided, where a first partition includes a scanning probe microscope (SPM) and a second partition includes an atomic layer deposition (ALD) chamber, where the first partition is hermetically isolated from the second partition, and at least one SPM probe tip of the SPM is disposed proximal to a sample in the ALD chamber. According to the invention, the hermetic isolation between the chambers prevents precursor vapor from damaging critical microscope components and ensuring that contaminants in the ALD chamber can be minimized. | 11-08-2012 |
Neil Dasgupta, San Francisco, CA US
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20110269298 | Irradiation assisted nucleation of quantum confinements by atomic layer deposition - A method of fabricating quantum confinements is provided. The method includes depositing, using a deposition apparatus, a material layer on a substrate, where the depositing includes irradiating the layer, before a cycle, during a cycle, and/or after a cycle of the deposition to alter nucleation of quantum confinements in the material layer to control a size and/or a shape of the quantum confinements. The quantum confinements can include quantum wells, nanowires, or quantum dots. The irradiation can be in-situ or ex-situ with respect to the deposition apparatus. The irradiation can include irradiation by photons, electrons, or ions. The deposition is can include atomic layer deposition, chemical vapor deposition, MOCVD, molecular beam epitaxy, evaporation, sputtering, or pulsed-laser deposition. | 11-03-2011 |
20130149860 | Metal Silicide Nanowire Arrays for Anti-Reflective Electrodes in Photovoltaics - A method of fabricating single-crystalline metal silicide nanowires for anti-reflective electrodes for photovoltaics is provided that includes exposing a surface of a metal foil to oxygen or hydrogen at an elevated temperature, and growing metal silicide nanowires on the metal foil surface by flowing a silane gas mixture over the metal foil surface at the elevated temperature, where spontaneous growth of the metal silicide nanowires occur on the metal foil surface, where the metal silicide nanowires are post treated for use as an electrode in a photovoltaic cell or used directly as the electrode in the photovoltaic cell. | 06-13-2013 |
20140093654 | Irradiation Assisted Nucleation of Quantum Confinements by Atomic Layer Deposition - A method of fabricating quantum confinements is provided. The method includes depositing, using a deposition apparatus, a material layer on a substrate, where the depositing includes irradiating the layer, before a cycle, during a cycle, and/or after a cycle of the deposition to alter nucleation of quantum confinements in the material layer to control a size and/or a shape of the quantum confinements. The quantum confinements can include quantum wells, nanowires, or quantum dots. The irradiation can be in-situ or ex-situ with respect to the deposition apparatus. The irradiation can include irradiation by photons, electrons, or ions. The deposition is can include atomic layer deposition, chemical vapor deposition, MOCVD, molecular beam epitaxy, evaporation, sputtering, or pulsed-laser deposition. | 04-03-2014 |
Neil Dasgupta, Ann Arbor, MI US
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20150357534 | Atomic Layer Deposition (ALD) of TiO2 using (Tetrakis(dimethylamino)titanium) TDMAT as an Encapsulation and/or Barrier Layer for ALD PbS - A method of encapsulating PbS quantum dots is provided that includes depositing, using atomic layer deposition (ALD), a first layer of TiO | 12-10-2015 |
Neil Paul Dasgupta, Menlo Park, CA US
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20090065048 | Hybrid Photolytic Fuel Cell - An apparatus for providing electrical energy by utilizing energy from absorbed light to dissociate water and thereby provide free electrons is disclosed. In some embodiments, the apparatus comprises a fuel cell having a photolytic front end, a proton-conducting layer, and a catalytic cathode. The photolytic front end uses energy from light to dissociate water molecules into protons and electrons, the proton-conducting layer conducts protons to the catalytic cathode and forces the electrons to travel through an external electrical circuit, and the catalytic cathode recombines the protons and electrons with oxygen to reform water molecules. | 03-12-2009 |
Ramanuj Dasgupta, New York, NY US
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20110251103 | TARGETED CHEMICAL HIGH-THROUGHPUT SCREENING METHOD - A novel method which integrates a “sensitized” chemical genetic high-throughput screen (HTS) with RNA interference (RNAi) screening technology is described herein. The present inventors used this method to identify specific small molecule inhibitors and activators of the Wnt pathway. More particularly, the screening method of the present invention may be used to identify small molecule inhibitors and activators that specifically target the activity of a stabilized pool of β-catenin. A number of compounds identified using the instant method, are shown herein to be small molecule inhibitors of the Wnt pathway that specifically target the activity of the stabilized pool of β-cat. The inhibitors identified by the present method may be prepared as pharmaceutical compositions, and may be used for the prevention and treatment of a variety of conditions in mammals including humans, including by way of non-limiting example, cancer, and others. | 10-13-2011 |
20120264744 | OXAZOLE AND THIAZOLE COMPOUNDS AS BETA-CATENIN MODULATORS AND USES THEREOF - A series of oxazole and thiazole compounds are shown herein to be small molecule inhibitors of the Wnt pathway that specifically target the activity of the stabilized pool of β-catenin. Oxazole and thiazole compounds are disclosed that have a formula represented by the following: | 10-18-2012 |
20130109675 | OXAZOLE AND THIAZOLE COMPOUNDS AS BETA-CATENIN MODULATORS AND USES THEREOF | 05-02-2013 |
20150267193 | MicroRNAs and Methods of Using Same - MicroRNAs (miRs) and methods and uses thereof for modulating Wnt signaling pathways are described herein. More particularly, miRs and compositions thereof and methods for treating a cancer associated with an elevated or hyper-activated Wnt signaling pathway using same, as well as miRs for use in treating cancers associated with an elevated or hyper-activated Wnt signaling pathway and for use in the preparation of a medicament for treating a cancer associated with an elevated or hyper-activated Wnt signaling pathway in a subject are described herein | 09-24-2015 |
Ranjan Dasgupta, Naperville, IL US
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20090055611 | REORGANIZING A WAGERING GAME MACHINE'S NVRAM - This document discusses, among other things, systems and methods for managing the contents of NVRAM in a wagering game machine. A method copies a first data of an NVRAM module to a storage device, wherein the NVRAM module is associated with a wagering game machine and then copies a second data to the NVRAM module. | 02-26-2009 |
20100048297 | ELECTRONIC GAMING MACHINE SECURITY FOR SOFTWARE STORED IN NONVOLATILE MEDIA - An illustrative method provides security of software resident on electronic gaming machines (EGMs) that permit wagering on games. A determination is made if all software files stored on a partition of a nonvolatile storage device resident in an EGM are authenticated image type files prior to any attempt to execute any of the software files. Further processing by the EGM of all of the software files is terminated upon the determination that one of the software files is not an authenticated image type file. | 02-25-2010 |
20100130287 | MANAGING SECURITY FOR NETWORK-BASED GAMING - This document discusses, among other things, systems and methods for managing security for network-based gaming. A method and system download and install an image of wagering game content on a wagering game machine, wherein the wagering game machine is capable of receiving a wager input from a player. The image is validated and may be transformed to a virtual storage device, such that it appears to be a physical storage device. The files may be accessed and validated in a similar manner as if they were stored on a physical storage device. In some cases, the same image format for content in an image is the same as if the content was stored on a physical storage device. | 05-27-2010 |
20100137058 | WAGERING GAME MACHINE PROVIDING A WRITE ONCE RUN ANYWHERE ENVIRONMENT - Systems and methods include determining a hardware configuration in accordance with the detection of the presence or absence of hardware modules on a wagering game machine. Various services are selected base on the hardware configuration, where the service selected provides an interface to a wagering game. The services provide an abstraction of various functions provided by various hardware platforms upon which the wagering game may execute, and take into account differences in the platforms. | 06-03-2010 |
20100248819 | NVRAM MANAGEMENT IN A WAGERING GAME MACHINE - Systems and methods are used to manage the contents of NVRAM in a wagering game machine. NVRAM may be pre-allocated for various purposes prior to loading a first wagering game on a the wagering game machine. A second wagering may be loaded on the wagering game machine. The second wagering game reuses the pre-allocated NVRAM portions for the same purposes as the first wagering game. | 09-30-2010 |
20100298043 | WAGERING GAME MACHINE UPGRADE AND ROLLBACK - Systems and methods provide for the selective backup and rollback of software, firmware and data components of a wagering game machine. | 11-25-2010 |
20120295693 | DYNAMIC SIGNATURE MANAGEMENT - Apparatus, systems, and methods may operate to determine at least one signature associated with a static image stored in a storage medium housed within a wagering game machine operable to present a wagering game. Additional activity may include repetitively generating a signature image comprising a sorted list of signatures, some of the signatures in the sorted list being hardware signatures associated with a corresponding plurality of hardware components physically attached to the wagering game machine. Additional apparatus, systems, and methods are disclosed. | 11-22-2012 |
20120329562 | WAGERING GAME MACHINE PROVIDING A WRITE ONCE RUN ANYWHERE ENVIRONMENT - Systems and methods include determining a hardware configuration in accordance with the detection of the presence or absence of hardware modules on a wagering game machine. Various services are selected base on the hardware configuration, where the service selected provides an interface to a wagering game. The services provide an abstraction of various functions provided by various hardware platforms upon which the wagering game may execute, and take into account differences in the platforms. | 12-27-2012 |
20140087863 | Electronic Gaming Machine Configuration using an Impromptu Configuration Channel - An electronic gaming machine (EGM) may use a temporary network to perform configuration updates upon determining that a maintenance mode is active and that normal gaming operation is suspended. The temporary network may use cryptographically paired wireless devices that prevent man-in-the-middle attacks or eavesdropping. Alternatively, the temporary network may use an existing network that is utilized during normal gaming operation for accessories and/or loyalty data. Once the temporary, or ad hoc, network is established, a host electronic gaming machine or a standalone device may be used as a repository from which configuration information may be propagated to other electronic gaming machines, even if the other electronic gaming machines have a different games or configurations from that of the host. This capability may be particularly helpful in jurisdictions where EGM networking is prohibited during game play operation. | 03-27-2014 |
20140094319 | METHOD FOR MULTI MACHINE CRITICAL MEMORY VERSIONING, MIGRATION AND REPLICATION - A notification that the data in the critical memory is to be accessed may be received. The data in the critical memory may be reviewed to determine if a version update is required. It may be determined if the data in the critical memory requires a version update. If the data requires a version update, a related version algorithm may be used to retrieve the data from the critical memory. | 04-03-2014 |
20150154080 | Critical Memory Checkpointing for Downloadable OS - A selectively stored roll back data set is configured to facilitate (1) automatically rolling an electronic gaming machine (EGM) backward to a previous operating system (OS), (2) electively rolling back the EGM to a previous OS, and (3) cloning a state of the EGM to one or more other EGMs. In an embodiment, the roll back data set is collected from nonvolatile sources of the EGM. Each set may include machine configuration data and data structures associated with the current OS. When a change back to the original OS is needed or desired, e.g., due to an installation failure of a downloadable OS (DLOS), or when cloning is desired, the roll back data set is automatically retrieved and the EGM is reverted. | 06-04-2015 |
Romit Dasgupta, San Jose, CA US
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20120260083 | Adjusting Device Performance over Multiple Time Domains - Adjusting processor performance based on processing profiles. The method may determine that a process has entered a processing state after an idle state. In response to entering the processing state the processing time of the processor may be monitored. In response to the processing time exceeding a first threshold of time, the performance of the processor may be increased from a first level to a second level. In response to the processing time exceeding a second threshold time, the performance of the processor may be decreased from the second level to a third level. In response to the processing time exceeding a third threshold time, the performance of the processor may be increased from the third level to a fourth level. In response to the processing time exceeding a fourth threshold time, the performance of the processor may be decreased from the fourth level to a fifth level. | 10-11-2012 |
Ruchira Dasgupta, Auburndale, MA US
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20130012436 | FIBRONECTIN BASED SCAFFOLD DOMAIN PROTEINS THAT BIND IL-23 - The present invention relates to fibronectin based scaffold domain protein that bind interleukin 23 (IL-23), specifically the p19 subunit of IL-23. The invention also relates to the use of the innovative proteins in therapeutic applications to treat autoimmune diseases. The invention further relates to cells comprising such proteins, polynucleotide encoding such proteins or fragments thereof, and to vectors comprising the polynucleotides encoding the innovative proteins. | 01-10-2013 |
20130288372 | FIBRONECTIN BASED SCAFFOLD DOMAIN PROTEINS THAT BIND IL-23 - The present invention relates to fibronectin based scaffold domain protein that bind interleukin 23 (IL-23). The invention also relates to the use of the innovative proteins in therapeutic applications to treat autoimmune diseases. The invention further relates to cells comprising such proteins, polynucleotide encoding such proteins or fragments thereof, and to vectors comprising the polynucleotides encoding the innovative proteins. | 10-31-2013 |
20150274806 | FIBRONECTIN BASED SCAFFOLD DOMAIN PROTEINS THAT BIND IL-23 - The present invention relates to fibronectin based scaffold domain protein that bind interleukin 23 (IL-23), specifically the p19 subunit of IL-23. The invention also relates to the use of the innovative proteins in therapeutic applications to treat autoimmune diseases. The invention further relates to cells comprising such proteins, polynucleotide encoding such proteins or fragments thereof, and to vectors comprising the polynucleotides encoding the innovative proteins. | 10-01-2015 |
Sajib Dasgupta, College Park, MD US
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20100146006 | Information Extraction Across Multiple Expertise-Specific Subject Areas - Techniques are disclosed for bridging terminology differences between at least two subject areas. By way of example, a computer-implemented method includes executing the following steps on a computer. A first affinity measure is computed between a first term in a first corpus, corresponding to a first subject area, and a bridge term. A second affinity measure is computed between a second term in a second corpus, corresponding to a second subject area, and the bridge term. A third affinity measure is computed between the first term and the second term based on the first affinity measure and the second affinity measure. The bridge term is a term that appears in both the first corpus and the second corpus. | 06-10-2010 |
20120232887 | INFORMATION EXTRACTION ACROSS MULTIPLE EXPERTISE-SPECIFIC SUBJECT AREAS - Techniques are disclosed for bridging terminology differences between at least two subject areas. By way of example, a computer-implemented method includes executing the following steps on a computer. A first affinity measure is computed between a first term in a first corpus, corresponding to a first subject area, and a bridge term. A second affinity measure is computed between a second term in a second corpus, corresponding to a second subject area, and the bridge term. A third affinity measure is computed between the first term and the second term based on the first affinity measure and the second affinity measure. The bridge term is a term that appears in both the first corpus and the second corpus. | 09-13-2012 |
Samhita Dasgupta, Schenectady, NY US
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20130255220 | DISTRIBUTED GAS TURBINE ENGINE CONTROL SYSTEM - In one embodiment, a gas turbine engine control system includes an engine controller configured to control multiple parameters associated with operation of a gas turbine engine system. The gas turbine engine control system also includes multiple remote interface units communicatively coupled to the engine controller. The remote interface unit is configured to receive an input signal from the engine controller indicative of respective target values of at least one parameter, and the remote interface unit is configured to provide closed-loop control of the at least one parameter based on the input signal and feedback signals indicative of respective measured values of the at least one parameter. | 10-03-2013 |
Samhita Dasgupta, Niskayuna, NY US
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20090003991 | SYSTEM AND METHOD FOR TURBINE ENGINE CLEARANCE CONTROL WITH RUB DETECTION - A method of detecting rubs during operation of a turbomachine comprising at least one rotating object having a tip and a shelf is provided. The method includes generating signals representative of a sensed parameter and processing the signals to generate height versus time data for the tip. The height of the tip corresponds to the distance between the tip and the shelf. The method further includes monitoring the height versus time data, in order to determine whether a change in the height data exceeds a threshold value, and detecting a rub of the rotating object(s) on a second object, when the change in the height data exceeds the threshold value. A rub detection system for a turbomachine and a turbine engine system with rub detection are also provided. | 01-01-2009 |
20090064522 | MULTI SENSOR CLEARANCE PROBE - A multi sensor clearance probe with at least longitudinally and transversely spaced apart first and second sensors operable to measure first and second distances respectively between the sensors and a longitudinally spaced apart rotating rotor. The sensors being operable to measure blade tip clearances between radially outer turbine blade tips and an annular stator shroud circumscribing the blade tips. The blade tips may be squealer tips and the sensors operable to measure the distances between the sensors and tops of squealer tip walls and outwardly facing walls within cavities of the squealer tips. The probe may be operably connected to a controller for sending signals to the controller indicating the first and second distances for controlling an air valve used for active clearance control. Two or more of the probe may be used to determine rotor centerline offset. | 03-12-2009 |
20100077830 | ELECTRONIC SELF-CALIBRATION FOR SENSOR CLEARANCE - Self-calibration of a multiple channel clearance sensor system, which in one embodiment includes at least one sensor for measuring at least one clearance parameter signal between a stationary object and a rotating object of a rotating machine. The sensor output is processed as a clearance parameter by an offset correction section configured to determine an offset error in the clearance parameter signal which is used by a level shifter. The level shifter is also switchably coupled to the clearance parameter signal wherein the output of the level shifter, which may be amplified and digitally converted, is processed by a signal level analyzer to determine a channel gain signal. | 04-01-2010 |
20100142881 | OPTICAL LINK CIRCUIT AND METHOD OF MAKING SAME - A circuit includes a flexible circuit having an optical waveguide embedded therein, a first device attached to the flexible circuit and configured to convert a first electrical signal to an optical signal, the first device positioned to emit the optical signal to an input end of the optical waveguide, and a second device attached to the flexible circuit and configured to convert the optical signal into a second electrical signal, the second device positioned to receive the optical signal from an output end of the optical waveguide. | 06-10-2010 |
20100188100 | AUTOMATED SENSOR SPECIFIC CALIBRATION THROUGH SENSOR PARAMETER DOWNLOAD - A sensor system for measuring a clearance parameter between a stationary component and a rotating component of a rotating machine is provided. The system includes a clearance sensor to output a clearance measurement signal. A sensor memory is attached to the sensor for storing a first sensor information. A second sensor information is stored in a electronics interface memory. The first and the second sensor information are read and the clearance sensor is matched with a respective plurality of calibration data by an electronic interface based on the first and the second sensor information. | 07-29-2010 |
20100191502 | SYSTEM AND METHOD FOR CLEARANCE ESTIMATION BETWEEN TWO OBJECTS - A processing system for clearance estimation in a rotating machine includes one or more sensors and one or more digital signal processors for calculating the estimated clearance. The processing system may include techniques for obtaining real-time clearance estimates and techniques for obtaining averaged clearance estimates. Aspects of the processing system may also include a method of switching between real-time clearance estimates and averaged clearance estimates depending on the operating conditions of the rotating machine. Other aspects of the processing system include the use of two digital signal processors: a first digital signal processor configured to receive signals from a clearance sensor and perform a first set of high speed processing tasks, and a second digital signal processor configured to receive signals from the first digital signal processor and perform a second set of lower speed processing tasks. | 07-29-2010 |
20110128989 | MULTIWAVELENGTH THERMOMETER - A thermal measurement system that includes a light collection device and a detection system in communication with the device. The detection system includes two detection subsystems, wherein one subsystem is configured to detect light from a surface of an object, while the other subsystem is configured to detect light from the surface and a gas. The present invention has been described in terms of specific embodiment(s), and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims. | 06-02-2011 |
20110295538 | AUTOMATED SENSOR SPECIFIC CALIBRATION THROUGH SENSOR PARAMETER DOWNLOAD - A sensor system for measuring a clearance parameter between a stationary component and a rotating component of a rotating machine is provided. The system includes a clearance sensor to output a clearance measurement signal. A sensor memory is attached to the sensor for storing a first sensor information. A second sensor information is stored in a electronics interface memory. The first and the second sensor information are read and the clearance sensor is matched with a respective plurality of calibration data by an electronic interface based on the first and the second sensor information. | 12-01-2011 |
Sansaptak Dasgupta, Hillsboro, OR US
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20140158976 | III-N SEMICONDUCTOR-ON-SILICON STRUCTURES AND TECHNIQUES - III-N semiconductor-on-silicon integrated circuit structures and techniques are disclosed. In some cases, the structure includes a first semiconductor layer formed on a nucleation layer, the first semiconductor layer including a 3-D GaN layer on the nucleation layer and having a plurality of 3-D semiconductor structures, and a 2-D GaN layer on the 3-D GaN layer. The structure also may include a second semiconductor layer formed on or within the first semiconductor layer, wherein the second semiconductor layer includes AlGaN on the 2-D GaN layer and a GaN layer on the AlGaN layer. Another structure includes a first semiconductor layer formed on a nucleation layer, the first semiconductor layer comprising a 2-D GaN layer on the nucleation layer, and a second semiconductor layer formed on or within the first semiconductor layer, wherein the second semiconductor layer includes AlGaN on the 2-D GaN layer and a GaN layer on the AlGaN layer. | 06-12-2014 |
20140170998 | GROUP III-N TRANSISTORS ON NANOSCALE TEMPLATE STRUCTURES - A III-N semiconductor channel is formed on a III-N transition layer formed on a (111) or (110) surface of a silicon template structure, such as a fin sidewall. In embodiments, the silicon fin has a width comparable to the III-N epitaxial film thicknesses for a more compliant seeding layer, permitting lower defect density and/or reduced epitaxial film thickness. In embodiments, a transition layer is GaN and the semiconductor channel comprises Indium (In) to increase a conduction band offset from the silicon fin. In other embodiments, the fin is sacrificial and either removed or oxidized, or otherwise converted into a dielectric structure during transistor fabrication. In certain embodiments employing a sacrificial fin, the III-N transition layer and semiconductor channel is substantially pure GaN, permitting a breakdown voltage higher than would be sustainable in the presence of the silicon fin. | 06-19-2014 |
20140175378 | EPITAXIAL FILM GROWTH ON PATTERNED SUBSTRATE - An embodiment includes depositing a material onto a substrate where the material includes a different lattice constant than the substrate (e.g., III-V or IV epitaxial (EPI) material on a Si substrate). An embodiment includes an EPI layer formed within a trench having walls that narrow as the trench extends upwards. An embodiment includes an EPI layer formed within a trench using multiple growth temperatures. A defect barrier, formed in the EPI layer when the temperature changes, contains defects within the trench and below the defect barrier. The EPI layer above the defect barrier and within the trench is relatively defect free. An embodiment includes an EPI layer annealed within a trench to induce defect annihilation. An embodiment includes an EPI superlattice formed within a trench and covered with a relatively defect free EPI layer (that is still included in the trench). Other embodiments are described herein. | 06-26-2014 |
20140175379 | EPITAXIAL FILM ON NANOSCALE STRUCTURE - An embodiment of the invention includes an epitaxial layer that directly contacts, for example, a nanowire, fin, or pillar in a manner that allows the layer to relax with two or three degrees of freedom. The epitaxial layer may be included in a channel region of a transistor. The nanowire, fin, or pillar may be removed to provide greater access to the epitaxial layer. Doing so may allow for a “all-around gate” structure where the gate surrounds the top, bottom, and sidewalls of the epitaxial layer. Other embodiments are described herein. | 06-26-2014 |
20140175509 | Lattice Mismatched Hetero-Epitaxial Film - An embodiment concerns forming an EPI film on a substrate where the EPI film has a different lattice constant from the substrate. The EPI film and substrate may include different materials to collectively form a hetero-epitaxial device having, for example, a Si and/or SiGe substrate and a III-V or IV film. The EPI film may be one of multiple EPI layers or films and the films may include different materials from one another and may directly contact one another. Further, the multiple EPI layers may be doped differently from another in terms of doping concentration and/or doping polarity. One embodiment includes creating a horizontally oriented hetero-epitaxial structure. Another embodiment includes a vertically oriented hetero-epitaxial structure. The hetero-epitaxial structures may include, for example, a bipolar junction transistor, heterojunction bipolar transistor, thyristor, and tunneling field effect transistor among others. Other embodiments are described herein. | 06-26-2014 |
20140175512 | Defect Transferred and Lattice Mismatched Epitaxial Film - An embodiment uses a very thin layer nanostructure (e.g., a Si or SiGe fin) as a template to grow a crystalline, non-lattice matched, epitaxial (EPI) layer. In one embodiment the volume ratio between the nanostructure and EPI layer is such that the EPI layer is thicker than the nanostructure. In some embodiments a very thin bridge layer is included between the nanostructure and EPI. An embodiment includes a CMOS device where EPI layers covering fins (or that once covered fins) are oppositely polarized from one another. An embodiment includes a CMOS device where an EPI layer covering a fin (or that once covered a fin) is oppositely polarized from a bridge layer covering a fin (or that once covered a fin). Thus, various embodiments are disclosed from transferring defects from an EPI layer to a nanostructure (that is left present or removed). Other embodiments are described herein. | 06-26-2014 |
20140175515 | NONPLANAR III-N TRANSISTORS WITH COMPOSITIONALLY GRADED SEMICONDUCTOR CHANNELS - A III-N semiconductor channel is compositionally graded between a transition layer and a III-N polarization layer. In embodiments, a gate stack is deposited over sidewalls of a fin including the graded III-N semiconductor channel allowing for formation of a transport channel in the III-N semiconductor channel adjacent to at least both sidewall surfaces in response to a gate bias voltage. In embodiments, a gate stack is deposited completely around a nanowire including a III-N semiconductor channel compositionally graded to enable formation of a transport channel in the III-N semiconductor channel adjacent to both the polarization layer and the transition layer in response to a gate bias voltage. | 06-26-2014 |
20140291693 | GROUP III-N TRANSISTORS ON NANOSCALE TEMPLATE STRUCTURES - A III-N semiconductor channel is formed on a III-N transition layer formed on a (111) or (110) surface of a silicon template structure, such as a fin sidewall. In embodiments, the silicon fin has a width comparable to the III-N epitaxial film thicknesses for a more compliant seeding layer, permitting lower defect density and/or reduced epitaxial film thickness. In embodiments, a transition layer is GaN and the semiconductor channel comprises Indium (In) to increase a conduction band offset from the silicon fin. In other embodiments, the fin is sacrificial and either removed or oxidized, or otherwise converted into a dielectric structure during transistor fabrication. In certain embodiments employing a sacrificial fin, the III-N transition layer and semiconductor channel is substantially pure GaN, permitting a breakdown voltage higher than would be sustainable in the presence of the silicon fin. | 10-02-2014 |
20150064859 | NONPLANAR III-N TRANSISTORS WITH COMPOSITIONALLY GRADED SEMICONDUCTOR CHANNELS - A III-N semiconductor channel is compositionally graded between a transition layer and a III-N polarization layer. In embodiments, a gate stack is deposited over sidewalls of a fin including the graded III-N semiconductor channel allowing for formation of a transport channel in the III-N semiconductor channel adjacent to at least both sidewall surfaces in response to a gate bias voltage. In embodiments, a gate stack is deposited completely around a nanowire including a III-N semiconductor channel compositionally graded to enable formation of a transport channel in the III-N semiconductor channel adjacent to both the polarization layer and the transition layer in response to a gate bias voltage. | 03-05-2015 |
20150108496 | GROUP III-N TRANSISTOR ON NANOSCALE TEMPLATE STRUCTURES - A III-N semiconductor channel is formed on a III-N transition layer formed on a (111) or (110) surface of a silicon template structure, such as a fin sidewall. In embodiments, the silicon fin has a width comparable to the III-N epitaxial film thicknesses for a more compliant seeding layer, permitting lower defect density and/or reduced epitaxial film thickness. In embodiments, a transition layer is GaN and the semiconductor channel comprises Indium (In) to increase a conduction band offset from the silicon fin. In other embodiments, the fin is sacrificial and either removed or oxidized, or otherwise converted into a dielectric structure during transistor fabrication. In certain embodiments employing a sacrificial fin, the III-N transition layer and semiconductor channel is substantially pure GaN, permitting a breakdown voltage higher than would be sustainable in the presence of the silicon fin. | 04-23-2015 |
20150187924 | Low Sheet Resistance GaN Channel on Si Substrates Using InAlN and AlGaN Bi-Layer Capping Stack - Transistors or transistor layers include an InAlN and AlGaN bi-layer capping stack on a 2DEG GaN channel, such as for GaN MOS structures on Si substrates. The GaN channel may be formed in a GaN buffer layer or stack, to compensate for the high crystal structure lattice size and coefficient of thermal expansion mismatch between GaN and Si. The bi-layer capping stack an upper InAlN layer on a lower AlGaN layer to induce charge polarization in the channel, compensate for poor composition uniformity (e.g., of Al), and compensate for rough surface morphology of the bottom surface of the InAlN material. It may lead to a sheet resistance between 250 and 350 ohms/sqr. It may also reduce bowing of the GaN on Si wafers during growth of the layer of InAlN material, and provide a AlGaN setback layer for etching the InAlN layer in the gate region. | 07-02-2015 |
20150206796 | III-N DEVICES IN SI TRENCHES - A trench comprising a portion of a substrate is formed. A nucleation layer is deposited on the portion of the substrate within the trench. A III-N material layer is deposited on the nucleation layer. The III-N material layer is laterally grown over the trench. A device layer is deposited on the laterally grown III-N material layer. A low defect density region is obtained on the laterally grown material and is used for electronic device fabrication of III-N materials on Si substrates. | 07-23-2015 |
20150249131 | Epitaxial Film On Nanoscale Structure - An embodiment of the invention includes an epitaxial layer that directly contacts, for example, a nanowire, fin, or pillar in a manner that allows the layer to relax with two or three degrees of freedom. The epitaxial layer may be included in a channel region of a transistor. The nanowire, fin, or pillar may be removed to provide greater access to the epitaxial layer. Doing so may allow for a “all-around gate” structure where the gate surrounds the top, bottom, and sidewalls of the epitaxial layer. Other embodiments are described herein. | 09-03-2015 |
20160056244 | NANOSTRUCTURES AND NANOFEATURES WITH Si (111) PLANES ON Si (100) WAFERS FOR III-N EPITAXY - A fin over an insulating layer on a substrate having a first crystal orientation is modified to form a surface aligned along a second crystal orientation. A device layer is deposited over the surface of the fin aligned along the second crystal orientation. | 02-25-2016 |
20160064491 | GROUP III-N TRANSISTORS ON NANOSCALE TEMPLATE STRUCTURES - A III-N semiconductor channel is formed on a III-N transition layer formed on a (111) or (110) surface of a silicon template structure, such as a fin sidewall. In embodiments, the silicon fin has a width comparable to the III-N epitaxial film thicknesses for a more compliant seeding layer, permitting lower defect density and/or reduced epitaxial film thickness. In embodiments, a transition layer is GaN and the semiconductor channel comprises Indium (In) to increase a conduction band offset from the silicon fin. In other embodiments, the fin is sacrificial and either removed or oxidized, or otherwise converted into a dielectric structure during transistor fabrication. In certain embodiments employing a sacrificial fin, the III-N transition layer and semiconductor channel is substantially pure GaN, permitting a breakdown voltage higher than would be sustainable in the presence of the silicon fin. | 03-03-2016 |
Sansaptak Dasgupta, Santa Clara, CA US
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20140091308 | SELF-ALIGNED STRUCTURES AND METHODS FOR ASYMMETRIC GAN TRANSISTORS & ENHANCEMENT MODE OPERATION - Embodiments include high electron mobility transistors (HEMT). In embodiments, a gate electrode is spaced apart by different distances from a source and drain semiconductor region to provide high breakdown voltage and low on-state resistance. In embodiments, self-alignment techniques are applied to form a dielectric liner in trenches and over an intervening mandrel to independently define a gate length, gate-source length, and gate-drain length with a single masking operation. In embodiments, III-N HEMTs include fluorine doped semiconductor barrier layers for threshold voltage tuning and/or enhancement mode operation. | 04-03-2014 |
20140091360 | TRENCH CONFINED EPITAXIALLY GROWN DEVICE LAYER(S) - Trench-confined selective epitaxial growth process in which epitaxial growth of a semiconductor device layer proceeds within the confines of a trench. In embodiments, a trench is fabricated to include a pristine, planar semiconductor seeding surface disposed at the bottom of the trench. Semiconductor regions around the seeding surface may be recessed relative to the seeding surface with Isolation dielectric disposed there on to surround the semiconductor seeding layer and form the trench. In embodiments to form the trench, a sacrificial hardmask fin may be covered in dielectric which is then planarized to expose the hardmask fin, which is then removed to expose the seeding surface. A semiconductor device layer is formed from the seeding surface through selective heteroepitaxy. In embodiments, non-planar devices are formed from the semiconductor device layer by recessing a top surface of the isolation dielectric. In embodiments, non-planar devices CMOS devices having high carrier mobility may be made from the semiconductor device layer. | 04-03-2014 |
20140091845 | HIGH BREAKDOWN VOLTAGE III-N DEPLETION MODE MOS CAPACITORS - III-N high voltage MOS capacitors and System on Chip (SoC) solutions integrating at least one III-N MOS capacitor capable of high breakdown voltages (BV) to implement high voltage and/or high power circuits. Breakdown voltages over 4V may be achieved avoiding any need to series couple capacitors in an RFIC and/or PMIC. In embodiments, depletion mode III-N capacitors including a GaN layer in which a two dimensional electron gas (2DEG) is formed at threshold voltages below 0V are monolithically integrated with group IV transistor architectures, such as planar and non-planar silicon CMOS transistor technologies. In embodiments, silicon substrates are etched to provide a (111) epitaxial growth surface over which a GaN layer and III-N barrier layer are formed. In embodiments, a high-K dielectric layer is deposited, and capacitor terminal contacts are made to the 2DEG and over the dielectric layer. | 04-03-2014 |
20140094223 | EPITAXIAL BUFFER LAYERS FOR GROUP III-N TRANSISTORS ON SILICON SUBSTRATES - Embodiments include epitaxial semiconductor stacks for reduced defect densities in III-N device layers grown over non-III-N substrates, such as silicon substrates. In embodiments, a metamorphic buffer includes an Al | 04-03-2014 |
20140291726 | TRENCH CONFINED EPITAXIALLY GROWN DEVICE LAYER(S) - Trench-confined selective epitaxial growth process in which epitaxial growth of a semiconductor device layer proceeds within the confines of a trench. In embodiments, a trench is fabricated to include a pristine, planar semiconductor seeding surface disposed at the bottom of the trench. Semiconductor regions around the seeding surface may be recessed relative to the seeding surface with Isolation dielectric disposed there on to surround the semiconductor seeding layer and form the trench. In embodiments to form the trench, a sacrificial hardmask fin may be covered in dielectric which is then planarized to expose the hardmask fin, which is then removed to expose the seeding surface. A semiconductor device layer is formed from the seeding surface through selective heteroepitaxy. In embodiments, non-planar devices are formed from the semiconductor device layer by recessing a top surface of the isolation dielectric. In embodiments, non-planar devices CMOS devices having high carrier mobility may be made from the semiconductor device layer. | 10-02-2014 |
20150318375 | SELF-ALIGNED STRUCTURES AND METHODS FOR ASYMMETRIC GAN TRANSISTORS & ENHANCEMENT MODE OPERATION - Embodiments include high electron mobility transistors (HEMT). In embodiments, a gate electrode is spaced apart by different distances from a source and drain semiconductor region to provide high breakdown voltage and low on-state resistance. In embodiments, self-alignment techniques are applied to form a dielectric liner in trenches and over an intervening mandrel to independently define a gate length, gate-source length, and gate-drain length with a single masking operation. In embodiments, III-N HEMTs include fluorine doped semiconductor barrier layers for threshold voltage tuning and/or enhancement mode operation. | 11-05-2015 |
Santanu Dasgupta, St. Louis, MO US
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20090293143 | Zea mays ribulose bisphosphate carboxylase activase promoter - The present invention provides gene regulatory element polynucleotide molecules, including a promoter and a leader, identified from the ribulose bisphosphate carboxylase activase (RUA) | 11-26-2009 |
20100107283 | Chimeric Regulatory Elements for Gene Expression in Leaf Mesophyll and Bundle Sheath Cells - The present invention provides chimeric regulatory elements constructed from gene regulatory element polynucleotide molecules isolated from the | 04-29-2010 |
Saumitro Dasgupta, Boston, MA US
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20110057629 | HARNESSING POWER THROUGH ELECTROMAGNETIC INDUCTION UTILIZING PRINTED COILS - Systems for harnessing power through electromagnetic induction utilizing printed coils are provided. A system can include one or more moveable magnets adjacent to printed coils on a circuit. For example, a system can include one or more magnets that are operative to move alongside a circuit board that includes printed coils. The one or more magnets may move, for example, when a user shakes the system or when the user walks or runs while holding the device. The movement of the one or more magnets may create an electromotive force (e.g., a voltage) across the printed coils, and this force may be used to generate electric power. | 03-10-2011 |
20110080348 | ELECTRONIC DEVICES WITH A PRIMARY DISPLAY AND A SELECTIVELY ILLUMINATED SECONDARY DISPLAY - Systems and methods for selectively illuminating a secondary display are provided. An electronic device can include a primary display (e.g., a liquid crystal display (LCD) screen) and a printed segmented electroluminescence (secondary) display. The primary display can be used to convey visual content to a user, and the secondary display can be used to guide a user providing inputs to the device. For example, the secondary display can be selectively illuminated to provide one or more indicators that represent where or how a user can provide inputs to the device. | 04-07-2011 |
20120235510 | HARNESSING POWER THROUGH ELECTROMAGNETIC INDUCTION UTILIZING PRINTED COILS - Systems for harnessing power through electromagnetic induction utilizing printed coils are provided. A system can include one or more moveable magnets adjacent to printed coils on a circuit. For example, a system can include one or more magnets that are operative to move alongside a circuit board that includes printed coils. The one or more magnets may move, for example, when a user shakes the system or when the user walks or runs while holding the device. The movement of the one or more magnets may create an electromotive force (e.g., a voltage) across the printed coils, and this force may be used to generate electric power. | 09-20-2012 |
Somsankar Dasgupta, North Augusta, NC US
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20140100262 | Methods and Compositions for Maintaining Blood-Brain Barrier Integrity - Methods of maintaining or improving blood-brain barrier integrity and increasing resistance to cytokine-induced cell permeability are disclosed. It has been discovered that down-regulating the expression or production of sulfoglucuronyl glycolipids, for example SGPG, in endothelial cells of the blood-brain barrier or the blood-nerve barrier reduces apoptosis of these endothelial cells and thereby promotes the integrity of the barriers. Promoting the integrity of these barriers includes, but is not limited to reducing or inhibiting passage of immune cells, pathogenic immunoglobins, or bio-degrading molecules across the blood-brain barrier or blood-nerve barrier into the nervous system. Down-regulating expression or production or SGPG also increases the resistance of the endothelial cells to cytokine-induced cell permeability. | 04-10-2014 |
Soura Dasgupta, Coralville, IA US
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20090196369 | METHOD AND SYSTEM FOR OPTIMAL BITLOADING IN COMMUNICATION AND DATA COMPRESSION SYSTEMS - This invention provides a method and system for determining the number of bits to assign to a frequency range in a signal. The present invention is capable of bit allocation, with B total bits, among a plurality of N frequency ranges in time a time O(N log N), which is independent of the size of B. Embodiments of the present invention have many practical applications, including allocating bits among sub-channels in a multi-carrier communication system, and allocating bits among sub-bands in a signal representing digital multimedia, such as in JPEG or MPEG compressed files. | 08-06-2009 |
20140062717 | Method for RFID Communication Using Inductive Orthogonal Coupling For Wireless Medical Implanted Sensors and Other Short-Range Communication Applications - The description provides a signal detection system employing a wireless, passive detection device that utilizes waveform shifting for reporting signals to a reader device. The system is useful for a variety of applications including as an implanted medical device for monitoring patient conditions. | 03-06-2014 |
Subrata Dasgupta, San Jose, CA US
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20130067078 | SYSTEM AND METHOD FOR PROVIDING A SCRIPT-BASED COLLECTION FOR DEVICES IN A NETWORK ENVIRONMENT - A method is provided in one example and includes verifying a storage capacity of a network element coupled to an end device over a network connection. The method also includes executing script provided in the network element, which is configured for exchanging packets in a network environment. The script initiates a collection of data being retrieved from the end device. The data can be Fault, Configuration, Accounting, Performance, and Security (FCAPS) data associated with the end device. The data collected from the end device is communicated to a next destination. | 03-14-2013 |
20130111596 | DATA PRIVACY FOR SMART SERVICES | 05-02-2013 |
20140173591 | DIFFERENTIATED SERVICE LEVELS IN VIRTUALIZED COMPUTING - In one implementation, a host provides virtualized computing to one or more customer networks. The virtualized computing may include hardware virtualization quantified in the resources of the virtual machines, services virtualization quantified in the quantity or types of services performed on host, or processing virtualization quantified by process occurrences. When the host receives a request for computing virtualization from a user device, the host derives an authentication value and accesses a virtualization service level from a memory. The host is configured to deliver the computing virtualization to the user device according the virtualization service level. | 06-19-2014 |
Sudeep Dasgupta, San Jose, CA US
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20120149344 | Method and System for Remote Notification and Answering of a Visitor at a Dooor - Methods and systems in accordance with the present invention provide a Bluetooth, wifi or other wirelessly connected door answering system. This system may include a Bluetooth or wifi device, for example, which may be affixed to or near a door and is enabled to communicate with a software application running on a mobile telephone, personal computer (“PC”), laptop or other portable computer, or any other appropriate connected device with a processor and user interface. In some implementations, this system may allow the user to communicate with the visitor via audio, video, and/or textual methods of communication. | 06-14-2012 |
Sudeep Dasgupta, Cupertino, CA US
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20150066907 | SEAMLESS PAGINATION - A search engine determines a number of pages to present to a user based on one or more of a variety of factors. The search engine may send the search results to a client machine, which may present a subset of the results along with a pagination control in a scrollable interface. The pagination control may present the number of pages determined by the search engine. The search engine may also determine a number of search results to present prior to the presentation of non-scrollable user interface (UI) elements based on the same or different factors. After the amount of scrolling exceeds a threshold, a non-scrollable UI element may be displayed. Additional thresholds may exist, such that additional non-scrollable UI elements are added as the user continues to scroll. | 03-05-2015 |
20150088921 | SEARCH GUIDANCE - A user may submit a search query to a search engine, which may process the search query and generate a set of results. Previous actions of the user or of other users may be used to identify recommended search queries. The recommended search queries may be presented to the user along with the search results for the query. The location of the recommended search queries may be fixed, set by the user, or determined on a query-by-query basis. A user interface element operable to cause the presentation of one or more recommended search queries may be presented after a delay. After an additional or independent delay, the recommended search queries may be presented automatically. The delays may be fixed, set by the user, or determined on a query-by-query basis. | 03-26-2015 |
Sukrit Dasgupta, Norwood, MA US
Patent application number | Description | Published |
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20140029432 | FEEDBACK-BASED TUNING OF CONTROL PLANE TRAFFIC BY PROACTIVE USER TRAFFIC OBSERVATION - In one embodiment, a management device may determine whether user traffic in a computer network is suffering from insufficient network resources. In response to user traffic suffering from insufficient network resources, the device may then trigger the computer network to reduce control plane traffic. In another embodiment, a network device may transmit control plane traffic into a computer network at a first rate. In response to receiving instructions to reduce control plane traffic due to user traffic suffering from insufficient network resources, the device may then transmit control plane traffic into the computer network at a reduced second rate. | 01-30-2014 |
20140092753 | TRAFFIC-BASED QUALITY OF SERVICE (QOS) MONITORING IN HIGHLY CONSTRAINED NETWORKS - In one embodiment, one or more monitoring nodes may monitor network traffic within a computer network, and dynamically identify one or more paths within the network that specifically require performance monitoring based on one or more traffic criteria triggered by the monitoring. The one or more paths may each include one or more path nodes. The one or more monitoring nodes may then request that the one or more path nodes initiate transmission of performance indicia, which may allow the one or more monitoring nodes to monitor the performance of the one or more paths based on the performance indicia received at the one or more monitoring nodes. | 04-03-2014 |
20140095864 | REDUCED AUTHENTICATION TIMES IN CONSTRAINED COMPUTER NETWORKS - In one embodiment, a capable node in a low power and lossy network (LLN) may monitor the authentication time for one or more nodes in the LLN. The capable node may dynamically correlate the authentication time with the location of the one or more nodes in the LLN in order to identify one or more authentication-delayed nodes. The node may then select, based on the location of the one or more authentication-delayed nodes, one or more key-delegation nodes to receive one or more network keys so that the key-delegation nodes may perform localized authentication of one or more of the authentication-delayed nodes. The capable node may then distribute the one or more network keys to the one or more key-delegation nodes. | 04-03-2014 |
20140126426 | MINTREE-BASED ROUTING IN HIGHLY CONSTRAINED NETWORKS - In one embodiment, a capable node in a computer network may host a path computation element, receive one or more neighborhood discovery messages including neighborhood information from a plurality of nodes in the computer network, and compute a minimum spanning tree (MinTree) for the computer network based on the neighborhood information. The MinTree may divide the plurality of nodes in the computer network into a first subset of routing nodes and a second subset of host nodes. The first subset of routing nodes may form one or more interconnected paths of routing nodes within the MinTree, and each host node within the second subset of host nodes may be located within one hop of at least one routing node. The capable node may then communicate a MinTree message to the plurality of nodes in the computer network to build the MinTree by enabling routing on each routing node. | 05-08-2014 |
20140219078 | BINARY SEARCH-BASED APPROACH IN ROUTING-METRIC AGNOSTIC TOPOLOGIES FOR NODE SELECTION TO ENABLE EFFECTIVE LEARNING MACHINE MECHANISMS - In one embodiment, nodes are polled in a network for Quality of Service (QoS) measurements, and a QoS anomaly that affects a plurality of potentially faulty nodes is detected based on the QoS measurements. A path, which traverses the plurality of potentially faulty nodes, is then computed from a first endpoint to a second endpoint. Also, a median node that is located at a point along the path between the first endpoint and the second endpoint is computed. Time-stamped packets are received from the median node, and the first endpoint and the second endpoint of the path are updated based on the received time-stamped packets, such that an amount of potentially faulty nodes is reduced. Then, the faulty node is identified from a reduced amount of potentially faulty nodes. | 08-07-2014 |
20140219103 | MIXED CENTRALIZED/DISTRIBUTED ALGORITHM FOR RISK MITIGATION IN SPARSELY CONNECTED NETWORKS - In one embodiment, techniques are shown and described relating to a mixed centralized/distributed algorithm for risk mitigation in sparsely connected networks. In particular, in one embodiment, a management node determines one or more weak point nodes in a shared-media communication network, where a weak point node is a node traversed by a relatively high amount of traffic as compared to other nodes in the network. In response to determining that a portion of the traffic can be routed over an alternate acceptable node, the management node instructs the portion of traffic to reroute over the alternate acceptable node. | 08-07-2014 |
20140219114 | REMOTE PROBING FOR REMOTE QUALITY OF SERVICE MONITORING - In one embodiment, a targeted node in a computer network receives a probe generation request (PGR), and in response, generates a link-local multicast PGR (PGR-Local) carrying instructions for generating probes based on the PGR. The targeted node then transmits the PGR-Local to neighbors of the targeted node to cause one or more of the neighbors to generate and transmit probes to a collection device in the computer network according to the PGR-Local instructions. In another embodiment, a particular node in a computer network receives a link-local multicast probe generation request (PGR-Local) from a targeted node in the computer network, the targeted node having received the PGR-Local from a remote device, and determines how to generate probes based on instructions carried within the PGR-Local before sending one or more probes to a collection device in the computer network according to the PGR-Local instructions. | 08-07-2014 |
20140219133 | PROACTIVE AND SELECTIVE TIME-STAMPING OF PACKET HEADERS BASED ON QUALITY OF SERVICE EXPERIENCE AND NODE LOCATION - In one embodiment, a message is received at a node in a network indicating that the node is classified as a critical node, and requesting the node to proactively time-stamp data packets. Data packets are received from one or more child nodes of the node, and the node selects a data packet of the received data packets to time-stamp. Then, the node proactively inserts a time-stamp in the selected data packet. The time-stamped data packet is sent toward a central management node. | 08-07-2014 |
20140222725 | FAST LEARNING TO TRAIN LEARNING MACHINES USING SHADOW JOINING - In one embodiment, a node receives a request to initiate a shadow joining operation to shadow join a field area router (FAR) of a computer network, and preserves its data structures and soft states. The shadow joining operation may then be initiated to shadow join the FAR, wherein shadow joining comprises preforming join operations without leaving a currently joined-FAR, and the node measures one or more joining metrics of the shadow joining operation, and reports them accordingly. In another embodiment, a FAR (or other management device) determines a set of nodes to participate in a shadow joining operation, and informs the set of nodes of the shadow joining operation to shadow join the FAR. The device (e.g., FAR) participates in the shadow joining operation, and receives reports of one or more joining metrics of the shadow joining operation measured by the set of nodes. | 08-07-2014 |
20140222726 | ACCELERATING LEARNING BY SHARING INFORMATION BETWEEN MULTIPLE LEARNING MACHINES - In one embodiment, variables maintained by each of a plurality of Learning Machines (LMs) are determined. The LMs are hosted on a plurality of Field Area Routers (FARs) in a network, and the variables are sharable between the FARs. A plurality of correlation values defining a correlation between the variables is calculated. Then, a cluster of FARs is computed based on the plurality of correlation values, such that the clustered FARs are associated with correlated variables, and the cluster allows the clustered FARs to share their respective variables. | 08-07-2014 |
20140222727 | ENHANCING THE RELIABILITY OF LEARNING MACHINES IN COMPUTER NETWORKS - In one embodiment, network data is processed using a Learning Machine (LM) algorithm in a network, and results of the processing of network data are determined. A reliability checking algorithm is selected to determine a reliability level of the results. The reliability checking algorithm may be a local reliability checking algorithm or an external reliability checking algorithm. The reliability level of the results is determined using the reliability checking algorithm. Then, the LM algorithm is adjusted based on the determined reliability level. | 08-07-2014 |
20140222728 | TRIGGERING ON-THE-FLY REQUESTS FOR SUPERVISED LEARNING OF LEARNING MACHINES - In one embodiment, network data is received at a Learning Machine (LM) in a network. It is determined whether the LM recognizes the received network data based on information available to the LM. When the LM fails to recognize the received network data: a connection to a central management node is established, a request is sent for information relating to the unrecognized network data to the central management node, and information is received from the central management node in response to the request. The received information assists the LM in recognizing the unrecognized network data. | 08-07-2014 |
20140222729 | PRE-PROCESSING FRAMEWORK COMPONENT OF DISTRIBUTED INTELLIGENCE ARCHITECTURES - In one embodiment, a state tracking engine (STE) defines one or more classes of elements that can be tracked in a network. A set of elements to track is determined from the one or more classes, and the set of elements is tracked in the network. Access to the tracked set of elements then provided via one or more corresponding application programming interfaces (APIs). In another embodiment, a metric computation engine (MCE) defines one or more network metrics to be tracked in the network. One or more tracked elements are received from the STE. The one or more network metrics are tracked in the network based on the received one or more tracked elements. Access to the tracked network metrics is then provided via one or more corresponding APIs. | 08-07-2014 |
20140222730 | DISTRIBUTED ARCHITECTURE FOR MACHINE LEARNING BASED COMPUTATION USING A DECISION CONTROL POINT - In one embodiment, a request is received from a requesting node in a network to assist in distributing a task of the requesting node. Upon receiving the message, a capability to perform the task of one or more helping nodes in the network is evaluated, and a helping node of the one or more helping nodes is selected to perform the task based on the evaluated capability of the selected helping node. The distribution of the task is then authorized from the requesting node to the selected helping node. | 08-07-2014 |
20140222731 | DISTRIBUTED ARCHITECTURE FOR LAYERED HIDDEN MARKOV MODELS - In one embodiment, techniques are shown and described relating to a distributed architecture for layered Hidden Markov Models. In particular, in one embodiment, a Hidden Markov Model (HMM) at a layer i receives a sequence of hidden state produced by an HMM at a layer i−1, and uses the sequence of hidden state produced by the HMM at layer i−1 as input to the HMM at layer i, where the HMM at layer i−1 uses first time period bins, and the HMM at layer i uses second time period bins that are greater in length than the first time period bins. In another embodiment, the HMM at layer i originates the input (e.g., from measured properties), and produces the sequence of hidden state to output it to an HMM at a layer i+1 for use as its input. | 08-07-2014 |
20140222748 | TRAFFIC-BASED INFERENCE OF INFLUENCE DOMAINS IN A NETWORK BY USING LEARNING MACHINES - In one embodiment, techniques are shown and described relating to traffic-based inference of influence domains in a network by using learning machines. In particular, in one embodiment, a management device computes a time-based traffic matrix indicating traffic between pairs of transmitter and receiver nodes in a computer network, and also determines a time-based quality parameter for a particular node in the computer network. By correlating the time-based traffic matrix and time-based quality parameter for the particular node, the device may then determine an influence of particular traffic of the traffic matrix on the particular node. | 08-07-2014 |
20140222975 | LEARNING MACHINE BASED COMPUTATION OF NETWORK JOIN TIMES - In one embodiment, techniques are shown and described relating to learning machine based computation of network join times. In particular, in one embodiment, a device computes a join time of the device to join a computer network. During joining, the device sends a configuration request to a server, and receives instructions whether to provide the join time. The device may then provide the join time to a collector in response to instructions to provide the join time. In another embodiment, a collector receives a plurality of join times from a respective plurality of nodes having one or more associated node properties. The collector may then estimate a mapping between the join times and the node properties and determines a confidence interval of the mapping. Accordingly, the collector may then determine a rate at which nodes having particular node properties report their join times based on the confidence interval. | 08-07-2014 |
20140222983 | DYNAMICALLY DETERMINING NODE LOCATIONS TO APPLY LEARNING MACHINE BASED NETWORK PERFORMANCE IMPROVEMENT - In one embodiment, techniques are shown and described relating to dynamically determining node locations to apply learning machine based network performance improvement. In particular, a degree of significance of nodes in a network, respectively, is calculated based on one or more significance factors. One or more significant nodes are then determined based on the calculated degree of significance. Additionally, a nodal region in the network of deteriorated network health is determined, and the nodal region of deteriorated network health is correlated with a significant node of the one or more significant nodes. | 08-07-2014 |
20140222996 | DYNAMICALLY ADJUSTING A SET OF MONITORED NETWORK PROPERTIES USING DISTRIBUTED LEARNING MACHINE FEEBACK - In one embodiment, techniques are shown and described relating to dynamically adjusting a set of monitored network properties using distributed learning machine feedback. In particular, in one embodiment, a learning machine (or distributed learning machines) determines a plurality of monitored network properties in a computer network. From this, a subset of relevant network properties of the plurality of network properties may be determined, such that a corresponding subset of irrelevant network properties based on the subset of relevant network properties may also be determined. Accordingly, the computer network may be informed of the irrelevant network properties to reduce a rate of monitoring the irrelevant network properties. | 08-07-2014 |
20140222997 | HIDDEN MARKOV MODEL BASED ARCHITECTURE TO MONITOR NETWORK NODE ACTIVITIES AND PREDICT RELEVANT PERIODS - In one embodiment, techniques are shown and described relating to a Hidden Markov Model based architecture to monitor network node activities and predict relevant periods. In particular, in one embodiment, a device determines a statistical model for each of one or more singular-node traffic profiles (e.g., based on one or more Hidden Markov Models (HMMs) each corresponding to a respective one of the one or more traffic profiles). By analyzing respective traffic from individual nodes in a computer network, and matching the respective traffic against the statistical model for the one or more traffic profiles, the device may detecting a matching traffic profile for the individual nodes in a computer network. In addition, the device may predict relevant periods of traffic for the individual nodes by extrapolating a most-likely future sequence based on prior respective traffic of the individual nodes and the corresponding matching traffic profile. | 08-07-2014 |
20140222998 | LEARNING MACHINE BASED DETECTION OF ABNORMAL NETWORK PERFORMANCE - In one embodiment, techniques are shown and described relating to learning machine based detection of abnormal network performance. In particular, in one embodiment, a border router receives a set of network properties x | 08-07-2014 |
20140223155 | FAST LEARNING TO TRAIN LEARNING MACHINES USING SMART-TRIGGERED REBOOT - In one embodiment, a triggered reboot of a field area router (FAR) of a computer network is initiated, and gathered states of the FAR are saved. The nodes in the computer network are informed of the triggered reboot, and then feedback may be collected from the nodes in response to the triggered reboot. As such, it can be determined whether to complete the triggered reboot based on the feedback, and the FAR is rebooted in response to determining to complete the triggered reboot. In another embodiment, a node receives information about the initiated triggered reboot of the FAR, and determines whether it has critical traffic. If not, the node buffers non-critical traffic and indicates positive feedback in response to the triggered reboot, but if so, then the node continues to process the critical traffic and indicates negative feedback in response to the triggered reboot. | 08-07-2014 |
20140269402 | DYNAMICALLY ENABLING SELECTIVE ROUTING CAPABILITY - In one embodiment, a particular node in a shared-media communication network determines a resource level and in response to determining a trigger condition (e.g., that the resource level is below a threshold), the particular node enters a selective forwarding mode. In the selective forwarding mode, the particular node does not forward non-critical messages. The particular node also notifies one or more neighboring nodes in the shared-media communication network of the entered selective forwarding mode. In another embodiment, a node may receive from a neighboring node, an indication of having entered a selective forwarding mode, and in response the node may forward only critical messages to the neighboring node. | 09-18-2014 |
20140281670 | PROVIDING A BACKUP NETWORK TOPOLOGY WITHOUT SERVICE DISRUPTION - In one embodiment, a primary root node may detect one or more neighboring root nodes based on information received from a first-hop node and may select a backup root node among the neighboring root nodes. Once selected, the backup root node may send the primary root node a networking identification and a corresponding group mesh key which the primary root node may forward to the first-hop nodes to cause the first-hop nodes to migrate to the backup root node when connectivity to the primary root node fails. In addition, the first-hop root nodes may migrate back to the primary root node when connectivity to the primary root node is restored. | 09-18-2014 |
20140379900 | CUMULATIVE NODE HEARTBEAT RELAY AGENTS IN CONSTRAINED COMPUTER NETWORKS - In one embodiment, a message instructing a particular node to act as a heartbeat relay agent is received at the particular node in a network. The particular node is selected to receive the message based on a centrality of the particular node. Heartbeat messages are then collected from child nodes of the particular node in the network. Based on the collected heartbeat messages, a heartbeat report is generated, and the report is transmitted to a collecting node in the network. | 12-25-2014 |
20150023174 | USING STATISTICAL AND HISTORICAL INFORMATION OF TOPOLOGY METRICS IN CONSTRAINED NETWORKS - Statistical and historical values of performance metrics are actively used to influence routing decisions for optimum topologies in a constrained network. Traffic service level is constantly monitored and compared with a service level agreement. If deviation exists between the monitored traffic service level and the terms of the service level agreement, stability metrics are used to maintain paths through the network that meet the terms of the traffic service level agreement or that improve the traffic flow through the network. Backup parent selection for a node in the network is performed based on previous performance of backup parents for the node. | 01-22-2015 |
20150092529 | LIGHTWEIGHT MULTICAST ACKNOWLEDGEMENT TECHNIQUE IN COMMUNICATION NETWORKS - In one embodiment, a message is received at a caching node in a network including an indication of the message's urgency. The message is transmitted to child nodes of the caching node, and upon transmitting the message, a retransmission timer is initiated when the message is urgent, based on the indication of the message's urgency. Then, one or more acknowledgements of receipt of the transmitted message are received from one or more of the child nodes, respectively. Upon expiration of the retransmission timer, when it is determined that one or more of the child nodes did not receive the transmitted message based on the received acknowledgements, the message is retransmitted to the child nodes. | 04-02-2015 |
20150092538 | HANDLING UNACCEPTABLE ASYMMETRICAL COMMUNICATION PATHS IN COMPUTER NETWORKS - In one embodiment, a plurality of communication paths in a second direction in a communication network is determined, based on reversing communication paths established in a first direction in the communication network. Then, a path quality of the communication paths in the second direction is monitored. Based on the monitored path quality, it is then determined whether the communication paths in the second direction satisfy a communication requirement. Finally, a particular communication path of unacceptable quality in the second direction is detected when the particular communication path in the second direction fails to satisfy the communication requirement. | 04-02-2015 |
20150156199 | REDUCED AUTHENTICATION TIMES IN CONSTRAINED COMPUTER NETWORKS - In one embodiment, a capable node in a low power and lossy network (LLN) may monitor the authentication time for one or more nodes in the LLN. The capable node may dynamically correlate the authentication time with the location of the one or more nodes in the LLN in order to identify one or more authentication-delayed nodes. The node may then select, based on the location of the one or more authentication-delayed nodes, one or more key-delegation nodes to receive one or more network keys so that the key-delegation nodes may perform localized authentication of one or more of the authentication-delayed nodes. The capable node may then distribute the one or more network keys to the one or more key-delegation nodes. | 06-04-2015 |
20150186798 | LEARNING DATA PROCESSOR FOR DISTRIBUTING LEARNING MACHINES ACROSS LARGE-SCALE NETWORK INFRASTRUCTURES - In one embodiment, a learning data processor determines a plurality of machine learning features in a computer network to collect. Upon receiving data corresponding to the plurality of features, the learning data processor may aggregate the data, and pushes the aggregated data for select features to interested learning machines associated with the computer network. | 07-02-2015 |
20150186799 | POINT-TO-MULTIPOINT COMMUNICATION INFRASTRUCTURE FOR EXPERT-BASED KNOWLEDGE FEED-BACK USING LEARNING MACHINES - In one embodiment, techniques are shown and described relating to a point-to-multipoint communication infrastructure for expert-based knowledge feed-back using learning machines. A learning machine may communicate an expert discovery request into a network to discover one or more experts, and then receive from the one or more experts, one or more expert discovery responses. Based on the one or more received expert discovery responses, the learning machine may then build a dynamic multicast tree of experts to assist the learning machine in a computer network. | 07-02-2015 |
20150188751 | DYNAMICALLY COMPUTING FATE SHARING IN COMPUTER NETWORKS USING LEARNING MACHINES - In one embodiment, a device (e.g., learning machine) determines a plurality of fate-sharing group (FSG) nodes in a computer network that are prone to simultaneously send an alarm upon detecting an event. As such, the device may elect one or more FSG owner nodes as a subset of the FSG nodes, and instructs the FSG group such that only FSG owner nodes send an alarm upon event detection. | 07-02-2015 |
20150188801 | REDUCING FLOATING DAGS AND STABILIZING TOPOLOGY IN LLNS USING LEARNING MACHINES - In one embodiment, a device determines a topological profile of individual nodes in a shared-media communication network, and also determines a respective likelihood of the nodes in the network to become a root of a floating topology based on the topological profiles. Accordingly, the device may provide instructions to particular nodes in the network based on the respective likelihoods. | 07-02-2015 |
20150195126 | MIXED DISTRIBUTED/CENTRALIZED ROUTING TECHNIQUES BASED ON CLOSED-LOOP FEEDBACK FROM A LEARNING MACHINE TO AVOID DARK ZONES - In one embodiment, a routing topology of a network including nodes interconnected by communication links is determined, and activity in the network is monitored to determine a normal behavior of the communication links. Weak communication links in the network that deviate from the determined normal behavior are detected, and it is then determined whether the weak communication links are spatially correlated based on the determined topology of the network. In response to the weak communication links being spatially correlated, a region of the network affected by the weak communication links is identified as a dark zone that is to be avoided when routing data packets in the network. | 07-09-2015 |
20150195136 | OPTIMIZING NETWORK PARAMETERS BASED ON A LEARNED NETWORK PERFORMANCE MODEL - In one embodiment, a predictive model is constructed by mapping multiple network characteristics to multiple network performance metrics. Then, a network performance metric pertaining to a node in a network is predicted based on the constructed predictive model and one or more network characteristics relevant to the node. Also, a local parameter of the node is optimized based on the predicted network performance metric. | 07-09-2015 |
20150195144 | DISTRIBUTED AND LEARNING MACHINE-BASED APPROACH TO GATHERING LOCALIZED NETWORK DYNAMICS - In one embodiment, one or more reporting nodes are selected to report network metrics in a network. From a monitoring node in the network, a trigger message is sent to the one or more reporting nodes. The trigger message may trigger the one or more reporting nodes to report one or more network metrics local to the respective reporting node. In response to the trigger message, a report of the one or more network metrics is received at the monitoring node from one of the one or more reporting nodes. | 07-09-2015 |
20150195149 | PREDICTIVE LEARNING MACHINE-BASED APPROACH TO DETECT TRAFFIC OUTSIDE OF SERVICE LEVEL AGREEMENTS - In one embodiment, a request to make a prediction regarding one or more service level agreements (SLAs) in a network is received. A network traffic parameter and an SLA requirement associated with the network traffic parameter according to the one or more SLAs are also determined. In addition, a performance metric associated with traffic in the network that corresponds to the determined network traffic parameter is estimated. It may then be predicted whether the SLA requirement would be satisfied based on the estimated performance metric. | 07-09-2015 |
20150195171 | LEARNING END-TO-END DELAYS IN COMPUTER NETWORKS FROM SPORADIC ROUND-TRIP DELAY PROBING - In one embodiment, periodic round-trip probes are executed in a network, whereby a packet is transmitted along a particular communication path from a source to a destination and back to the source. Statistical information relating to the round-trip probes is gathered, and a transmission delay of the round-trip probes is calculated based on the gathered statistical information. Also, an end-to-end transmission delay along an arbitrary communication path in the network is estimated based on the calculated transmission delay of the round-trip probes. | 07-09-2015 |
20150195176 | MONITORING NODE LIVENESS IN LOW-POWER LOSSY NETWORKS - In one embodiment, a learning machine may be used to select observer nodes in a LLN such that the liveness of one or more nodes of interest may be monitored indirectly. In particular, a management device may receive network data on one or more network traffic parameters of a computer network. The management device may then determine, based on the network data, a candidate list of potential observer nodes to monitor activity or inactivity of one or more subject nodes. The management device may then dynamically select, using a machine learning model, a set of optimized observer nodes from the candidate list of potential observer nodes. | 07-09-2015 |
20150195184 | LEARNING MACHINE-BASED GRANULAR SEGMENT/PATH CHARACTERISTIC PROBING TECHNIQUE - In one embodiment, a routing topology of a network including nodes interconnected by communication links is determined. Important nodes in the network which are of relative importance are determined based on their location in the determined routing topology. Also, one or more request messages are sent causing the important nodes to gather local network metrics. Then, in response to the one or more request messages, one or more response messages including the network metrics gathered by each important node are received. | 07-09-2015 |
20150195185 | LEARNING MACHINE-BASED MECHANISM TO IMPROVE QOS DYNAMICALLY USING SELECTIVE TRACKING OF PACKET RETRANSMISSIONS - In one embodiment, a packet to be transmitted along a communication path in a network from a source to a destination is determined, the communication path having one or more hops between the source and the destination. An instruction is sent to one or more tracking nodes along the communication path to track a number of local retransmissions required to successfully transmit the packet from each tracking node to a respective next-hop destination. Then, reports indicating the number of local retransmissions are received from the one or more tracking nodes. | 07-09-2015 |
20150195192 | TRIGGERING REROUTES USING EARLY LEARNING MACHINE-BASED PREDICTION OF FAILURES - In one embodiment, network metrics are collected and analyzed in a network having nodes interconnected by communication links. Then, it is predicted whether a network element failure is relatively likely to occur based on the collected and analyzed network metrics. In response to predicting that a network element failure is relatively likely to occur, traffic in the network is rerouted in order to avoid the network element failure before it is likely to occur. | 07-09-2015 |
20150195212 | DYNAMIC NETWORK-DRIVEN APPLICATION PACKET RESIZING - In one embodiment, information relating to network metrics in a computer network is collected. A packet delay for a packet to be transmitted along a particular communication path is predicted based on the network metrics. Then, an optimal packet size for optimizing a transmission experience of the packet to be transmitted along the particular communication path is calculated based on the predicted packet delay. Also, a size of the packet to be transmitted along the particular communication path is dynamically adjusted based on the calculated optimal packet size. | 07-09-2015 |
20150332145 | TRAFFIC SHAPING BASED ON PREDICTED NETWORK RESOURCES - In one embodiment, a committed information rate (CR) prediction is received from a machine learning model that corresponds to a predicted average traffic rate supported by a network connection. A traffic shaping strategy is adjusted based on the CR prediction. A rate at which data is communicated over the network connection may be based on the traffic shaping policy. The effects of the adjusted traffic shaping strategy are also monitored. Feedback is further provided to the machine learning model based on the monitored effects of the adjusted traffic shaping strategy. | 11-19-2015 |
20150332155 | PREDICTIVE PATH CHARACTERISTICS BASED ON NON-GREEDY PROBING - In one embodiment, a network device receives metrics regarding a path in the network. A predictive model is generated using the received metrics and is operable to predict available bandwidth along the path for a particular type of traffic. A determination is made as to whether a confidence score for the predictive model is below a confidence threshold associated with the particular type of traffic. The device obtains additional data regarding the path based on a determination that the confidence score is below the confidence threshold. The predictive model is updated using the additional data regarding the path. | 11-19-2015 |
20150333953 | SOFT REROUTING IN A NETWORK USING PREDICTIVE RELIABILITY METRICS - In one embodiment, a plurality of paths in a network from a source device to a destination device is identified. A predicted performance for packet delivery along a primary path from the plurality of paths is determined. The predicted performance for packet delivery along the primary path is then compared to a performance threshold. Traffic sent along the primary path may be duplicated onto a backup path selected from the plurality of paths based on a determination that the predicted performance along the primary path is below the performance threshold. | 11-19-2015 |
20150333969 | PREDICTIVE NETWORKING ARCHITECTURE FOR NEXT-GENERATION MULTISERVICE, MULTICARRIER WANS - In one embodiment, network traffic data is received regarding traffic flowing through one or more routers in a network. A future traffic profile through the one or more routers is predicted by modeling the network traffic data. Network condition data for the network is received and future network performance is predicted by modeling the network condition data. A behavior of the network is adjusted based on the predicted future traffic profile and on the predicted network performance. | 11-19-2015 |
20150333992 | DYNAMIC COLLECTION OF NETWORK METRICS FOR PREDICTIVE ANALYTICS - In one embodiment, data is received at a device regarding a network-monitoring process in which one or more nodes in a network export network metrics to one or more collector nodes. A change to the network-monitoring process is determined based on the received data. The device also adjusts the network-monitoring process to implement the determined change. | 11-19-2015 |
20150334030 | PROBING AVAILABLE BANDWIDTH ALONG A NETWORK PATH - In one embodiment, a time period is identified in which probe packets are to be sent along a path in a network based on predicted user traffic along the path. The probe packets are then sent during the identified time period along the path. Conditions of the network path are monitored during the time period. The rate at which the packets are sent during the time period is dynamically adjusted based on the monitored conditions. Results of the monitored conditions are collected, to determine an available bandwidth limit along the path. | 11-19-2015 |
20160026922 | Distributed Machine Learning Autoscoring - In one embodiment, a management system determines respective capability information of machine learning systems, the capability information including at least an action the respective machine learning system is configured to perform. The management system receives, for each of the machine learning systems, respective performance scoring information associated with the respective action, and computes a degree of freedom for each machine learning system to perform the respective action based on the performance scoring information. Accordingly, the management system then specifies the respective degree of freedom to the machine learning systems. In one embodiment, the management system comprises a management device that computes a respective trust level for the machine learning systems based on receiving the respective performance scoring feedback, and a policy engine that computes the degree of freedom based on receiving the trust level. In further embodiments, the machine learning system performs the action based on the degree of freedom. | 01-28-2016 |
20160028599 | SCHEDULING PREDICTIVE MODELS FOR MACHINE LEARNING SYSTEMS - In one embodiment, a device in a network monitors performance data for a first predictive model. The first predictive model is used to make proactive decisions in the network. The device maintains a supervisory model based on the monitored performance data for the first predictive model. The device identifies a time period during which the supervisory model predicts that the first predictive model will perform poorly. The device causes a switchover from the first predictive model to a second predictive model at a point in time associated with the time period, in response to identifying the time period. | 01-28-2016 |
20160028608 | SELECTIVE AND DYNAMIC APPLICATION-CENTRIC NETWORK MEASUREMENT INFRASTRUCTURE - In one embodiment, a device in a network receives data indicative of traffic characteristics of traffic associated with a particular application. The device identifies one or more paths in the network via which the traffic associated with the particular application was sent, based on the traffic characteristics. The device determines a probing schedule based on the traffic characteristics. The probing schedule simulates the traffic associated with the particular application. The device sends probes along the one or more identified paths according to the determined probing schedule. | 01-28-2016 |
20160028616 | DYNAMIC PATH SWITCHOVER DECISION OVERRIDE BASED ON FLOW CHARACTERISTICS - In one embodiment, a device in a network receives a switchover policy for a particular type of traffic in the network. The device determines a predicted effect of directing a traffic flow of the particular type of traffic from a first path in the network to a second path in the network. The device determines whether the predicted effect of directing the traffic flow to the second path would violate the switchover policy. The device causes the traffic flow to be routed via the second path in the network, based on a determination that the predicted effect of directing the traffic flow to the second path would not violate the switchover policy for the particular type of traffic. | 01-28-2016 |
20160028632 | ENSURING DYNAMIC TRAFFIC SHAPING FAIRNESS - In one embodiment, a device in a network receives an indication of a traffic shaping rate adjustment by a node due to a network condition. The device identifies a set of network nodes that are associated with the network condition. The device detects a traffic shaping rules violation by an offending node in the set of network nodes. The device sends an instruction that causes the offending node to use a different traffic shaping rate. | 01-28-2016 |
20160028637 | SELECTIVELY EMPLOYING DYNAMIC TRAFFIC SHAPING - In one embodiment, a device in a network identifies a set of one or more destination addresses for which traffic shaping is to be performed by controlling the data rate at which traffic is sent to the one or more destination addresses. The device sends the traffic to one of the destination addresses along a communication path in the network and at a particular data rate. The device identifies a change in a performance characteristic for the communication path. The device adjusts the data rate at which the traffic is sent along the communication path, in response to identifying the change in the performance characteristic for the communication path. | 01-28-2016 |
Suryasarathi Dasgupta, Boston, MA US
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20100197578 | DEMANNOSYLATED RECOMBINANT FACTOR VIII [[VII]] FOR THE TREATMENT OF PATIENTS WITH HAEMOPHILIA A - There is provided in accordance with the practice of this invention a demannosylated Factor VIII, the immunogenicity of which is substantially decreased or abolished in Human. The modified factor VIII is disclosed together with the modified amino acid sequence, changed by at least one substitution. The modified factor VIII is useful for hemophiliacs, either to avoid or prevent the action of inhibitory anti-FVIII antibodies. | 08-05-2010 |
Swagat Dasgupta, Redmond, WA US
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20140359056 | Metered Network Synchronization - Metered network synchronization techniques are described. A current network connection of a computing device is checked as to whether the current network connection has been identified as a metered network. Access by a synchronization engine of the computing device to communicate via the current network connection to synchronize data of the computing device with another computing device is managed based at least in part on a setting associated with the metered network. | 12-04-2014 |
Tirthankar Dasgupta, Cambridge, MA US
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20160046076 | STATISTICAL PREDICTIVE MODELING AND COMPENSATION OF GEOMETRIC DEVIATIONS OF 3D PRINTED PRODUCTS - A non-transitory, tangible, computer-readable storage media may contain a program of instructions that causes a computer system having a processor running the program of instructions to: receive design information indicative of the design of a three-dimensional object to be printed by a three-dimensional printer; receive test product deformation information indicative of deformation in the profiles of no more than five, three-dimensional test products that have a circular or polygonal cross section that were made by the three-dimensional printer; generate polygon product deformation information indicative of a predicted deformation of a polygon shape that the three-dimensional printer will print and that has a number of sides and a number of sizes that are both different from each of the number of sides and number of sizes that the no more than five, three-dimensional test products have; and generate adjustment information indicative of an adjustment needed to print a desired profile of the polygon shape that the three-dimensional printer will print to make the printed shape accurate | 02-18-2016 |
Tridib Dasgupta, East Amherst, NY US
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20110275033 | Palladium-Cobalt Based Alloys - A nonmagnetic alloy is provided based on a palladium-cobalt binary system with the addition of gold, has a coefficient of thermal expansion (CTE) of about 13.8 to about 15 and may include one or more of the following additive metals: aluminum, boron, chromium, gallium, lithium, rhenium, ruthenium, silicon, tantalum, titanium, and tungsten. | 11-10-2011 |
20150017606 | PALLADIUM BASED ALLOYS - A palladium-based alloy having a coefficient of thermal expansion (CTE) of about 12.0 to about 13.0 and having one or more of the following additive metals: platinum, gallium, molybdenum, tin, silicon, ruthenium, rhenium, indium, tungsten, niobium, boron and lithium. | 01-15-2015 |