INDIAN INSTITUTE OF TECHNOLOGY BOMBAY Patent applications |
Patent application number | Title | Published |
20150161471 | METHOD FOR FITTING A STRAIGHT LINE TO DATA WITH OUTLIERS - A method for fitting a straight line for a statistics dataset (x, y) containing outliers comprising the steps of: a) receiving a statistics dataset (x, y) containing outliers; b) constructing initial interval search box [m,c] for slope and intercept for received statistics dataset (x, y); c) formulating an objective function based on initial search box; d) obtaining an equation of line model by representing it in interval domain; e) processing interval residuals by taking the difference between response variable and estimation of response variable in interval domain; f) evaluating interval Tukey's biweight function by deciding the outlierness of any data point by comparing the robust median of absolute deviation of interval residuals and absolute value of interval residual for that point; g) finding the estimates of slope and intercept by using vectorized version of interval global optimization process; and h) fitting a straight line for the statistics dataset (x, y) based on the estimates of slope and intercept. | 06-11-2015 |
20150053249 | SYSTEM FOR EXTRACTING WATER FROM AIR FOR DRINKING AND CLEANING PURPOSES AND A METHOD THEREOF - A system for extraction of water from air includes a salt plate, a moisture absorption unit and a filter unit. The system further includes a storage unit. A method for extraction of water using the system includes placing the salt plate beneath the moisture absorption unit during a moisture absorption phase and placing the salt plate beneath the filter unit during a water extraction phase. The extracted water is stored in the storage unit for drinking and cleaning purposes. Further, a system for cleaning solar panels includes a moisture absorbing unit, a filter unit, a salt plate, a water storage unit, a solar panel, a wiper mechanism to receive water from the storage unit to clean the solar panel, and support elements to moveably support wiper mechanism. | 02-26-2015 |
20140195512 | METHOD FOR OPTIMIZING PERFORMANCE OF DATABASE/WEB-SERVICE BACKED APPLICATIONS BY AUTOMATICALLY PREFETCHING QUERY RESULTS - The present disclosure proposes the method for optimizing the performance of data base/web-service backed applications by automatically prefetching query results. The proposed system and methods automatically insert prefetch instructions at the earliest possible points across procedure calls in application source code, in presence of conditional branching and loops. A data flow analysis technique called anticipable expressions analysis is extended, to analyze anticipability of queries. The benefit of prefetching is limited due to the presence of assignment statements and conditional branches that precede the query execution statement. Enhancements such as code motion, chaining and rewriting prefetch requests are devised to increase benefits of prefetching. These techniques perform equivalence preserving program and query transformations. | 07-10-2014 |
20140070896 | MAGNETIC FIELD FEEDBACK BASED SPINTRONIC OSCILLATOR - The embodiments herein relate to a magnetic field feedback based spintronic microwave oscillator driven by DC current. The microwave oscillator works based on a magnetic tunnel junction structure connected to a feedback waveguide. Any fluctuation in the magnetization direction of free magnetization layer of MTJ drives an oscillating current through the feedback waveguide which in turn exerts an oscillating magnetic field on the free layer and amplifies the magnetization fluctuations. If the DC current passing through the MTJ is more than a critical value, continuous processing states of the magnetization are possible. The critical current is independent of the thickness and magnetization of the free layer. A MTJ can be driven into spontaneous oscillations with DC current and magnetic field feedback circuit and can act as a spintronic microwave oscillator. | 03-13-2014 |
20140058718 | CROWDSOURCING TRANSLATION SERVICES - A method, system, and computer program product for translating a text file are disclosed. A text file in a source language is received and text snippets from the text file are extracted. The text snippets are distributed to a first set of remote workers for translation. The translated text snippets are validated by a second set of remote workers and the validated text snippets are used to generate a translated text file. | 02-27-2014 |
20140017809 | OPTICAL FIBER PROBE - A biosensor having an optical fiber having at least one curved portion configured to enhance penetration of evanescent waves; and one or more nanoparticles associated with the optical fiber, and configured to enhance localized surface plasmon resonance. | 01-16-2014 |
20140003805 | METHODS FOR GENERATING MULTI-LEVEL PSEUDO-RANDOM SEQUENCES | 01-02-2014 |
20130284248 | SOLAR CELL HAVING THREE DIMENSIONAL JUNCTIONS AND A METHOD OF FORMING THE SAME - A method of forming a solar cell | 10-31-2013 |
20130251965 | PHOTO-PATTERNABLE MULTIFUNCTIONAL POLYMER NANOCOMPOSITE - The invention provides a photo-patternable multifunctional polymer nanocomposite. The nanocomposite comprises a solvent suspension of multiferroic nanostructures uniformly dispersed in SU-8 polymer matrix. The invention also provides a composite comprising a substrate and a photo-patterned multifunctional polymer nanocomposite layer formed on the substrate. The nanocomposite layer comprises a UV-photolithographed SU-8 polymer having a solvent suspension of multiferroic nanostructures uniformly dispersed in the polymer matrix. | 09-26-2013 |
20130186109 | COUNTER FLOW HEAT EXCHANGER FOR A MINIATURE JOULE-THOMSON CRYOCOOLER - A counter flow heat exchanger comprising a body formed of stacked, fused, ceramic sheets. The sheets comprising: a bottom sheet, a second sheet, a third sheet, a fourth sheet and a top sheet. The sheets have punched holes such that when the sheets are aligned there is an inlet hole spanning from the top sheet to the fourth sheet, an outlet hole spanning from the top sheet to the second sheet, and an inflow hole spanning from the fourth sheet to the second sheet. Within the second sheet, a low pressure flow channel connects the outlet hole with the inflow hole. Within the fourth sheet, the inlet hole flows into a high pressure flow channel which flows into a narrow flow path which then empties into the inflow hole. The high pressure flow channel is aligned with the low pressure flow channel to allow for heat exchange. | 07-25-2013 |
20130183099 | METHOD AND SYSTEM FOR THE REMEDIATION OF CONTAMINATED EARTH FROM HAZARDOUS SUBSTANCES IN A BATCH-WISE EX-SITU ON-SITE MANNER - Method and system for the remediation of contaminated earth from hazardous substances in a batch-wise ex-situ on site manner. At least one mobile earth moving equipment, at lest one mobile tumbler reactor and at least one liquid-solid separator are organised at a location in the proximity of the contaminated site. Contaminated earth portions are collected from the contaminated site batch by batch in the mobile earth moving equipment and transferred to the mobile tumbler reactor at the location. The contaminated earth portions in the mobile tumbler reactor are dosed with cleaning agents and water washed in the reactor under agitation or tumbling. The mixture of water washed earth portions and wash water with cleaning agents transferred into the liquid-solid separator and the wash water with the cleaning agents is separated from the mixture in the separator. The cleaned earth portions in the separator are transferred into the earth moving equipment, transported back to the contaminated site and deposited at the contaminated site until the entire contaminated earth at the contaminated site is remedied. | 07-18-2013 |
20130177953 | RECOMBINANT PROCESS FOR THE PRODUCTION OF R-AROMATIC ALPHA HYDROXY KETONES - A process for preparation of (R)-aromatic α-hydroxy ketones of formula (I), said process occurring in strain(s) of yeast expressing a recombinant pyruvate decarboxylase, having cysteine residues at positions 221 and 222 of PDC1, an isoenzyme of said pyruvate decarboxylase, substituted with glutamate and alanine respectively such that the said mutation being in the regulatory site of pyruvate decarboxylase, selectively favours carboligation reaction over decarboxylation. | 07-11-2013 |
20130108648 | NANOPARTICULATE IN-SITU GELS AS VITREOUS HUMOR SUBSTITUTES FOR OCULAR DISEASES | 05-02-2013 |
20130094771 | SYSTEM FOR CREATING A CAPSULE REPRESENTATION OF AN INSTRUCTIONAL VIDEO - A method is provided that creates a lecture video capsule containing highlights of an original instructional video based on visual quality and content. The method includes segmenting and recognizing activities in the instructional video using a hidden Markov model (HMM). The activities are classified into three categories: talking head, writing hand and slideshow. The talking head frames are classified as non-content frames, while the writing hand and slideshows are classified as content frames. A non-reference based objective quality assessment of the non-content frames may be performed to detect high quality frames. Statistical parameters of an intensity histogram and a horizontal projection profile (HPP) of the content frames may be used to derive an objective quality measure of the content frames that is used to extract high quality content frames. The selected high quality non-content and content frames form a video clip or capsule, which is a temporally compressed representation of the video. | 04-18-2013 |
20130086761 | SUN TRACKING MECHANISM WITH AUTOMATED CLEANING ARRANGEMENT FOR SOLAR PANEL - A solar panel | 04-11-2013 |
20130035279 | METHOD AND A SYSTEM FOR PRODUCING THERMOLABILE NANOPARTICLES WITH CONTROLLED PROPERTIES AND NANOPARTICLES MATRICES MADE THEREBY - This disclosure relates to a method and a system of producing nanoparticles and nanoparticle matrices of thermolabile, biocompatible matrix materials, like lipids and biopolymers with controlled properties. A prototype pulse-heat aerosol system is described for single-step production of free, thermolabile nanoparticles with sufficient control over size, morphology and crystallinity with controlled-release properties, for possible therapeutic, cosmetic or diagnostic use. Nanoparticles of the range 50 to 500 nm are obtained and are found suitable for controlled drugs delivery. | 02-07-2013 |
20130028141 | METHOD AND APPARATUS FOR ALLOCATING BACKBONE VLAN IDENTIFIERS - Methods and apparatuses for allocating backbone virtual local area network identifiers (BVIDs) to connection requests in a provider backbone bridging-traffic engineering (PBB-TE) network are described. During operation, a system (e.g., a network management system) can receive a set of connection requests for a set of connections that are desired to be set up in the PBB-TE network. Next, the system can allocate a BVID to each connection request in the set of connection requests so that, once the set of connection requests are set up in the PBB-TE network, conflicting connections in the PBB-TE network have different BVIDs. | 01-31-2013 |
20120193234 | CAPILLARY ELECTROPHORESIS CHIPS - A seamless microchannel with aligned microelectrodes structure can be prepared to include a polymeric body defining a surface of a seamless microchannel. The microchannel is seamless in that it is formed by a single body of material having a conduit that is open at one surface and extends to another opening aligned with microelectrodes in another surface of the body. The rest of the microchannel is closed and defined by the single body of material. The seamless microchannel structure can be used in methods that include biosensors, coupling waveguides, capillary electrophoresis chips, microreactors, polymerase chain reaction-chips, and solving mathematical problems. | 08-02-2012 |
20120170044 | Polymer Analysis Chip - A microfabricated analysis chip with integrated waveguides for evanescent field absorption detection is provided. Fabrication of the microfluidic device may be performed by micropatterning a layer of photoresist or other suitable material using a single step photoresist process to produce a microchannel and an optical structure (e.g., a U-bend waveguide) in the microfluidic device. The microfluidic device couples a micro-channel network with a waveguide in a collinear fashion to maintain higher path length and incurring little or no scattering, dispersion, and divergence losses. A sample can be passed through the microchannel while light is transmitted through the waveguide. Any change in refractive index as well as change in optical absorbance property of fluid flowing in the microchannel can be detected by detecting changes in light output power (e.g., changes in absorbance). A change in concentration of solution in the microchannel can be determined by detecting a change in light absorbance output. | 07-05-2012 |
20120146829 | SUCCESSIVE APPROXIMATION REGISTER ANALOG TO DIGITAL CONVERTER CIRCUIT - Techniques are generally described herein for analog to digital conversion. Some example ADC converters include a unit capacitor array coupled to a reference voltage, where the capacitor array includes multiple capacitors coupled to one another via multiple switches under control of a control block. A comparator, having a first input and a second input, is configured to receive a controlled voltage generated from the unit capacitor array and compare an analog voltage to the controlled voltage. The control block is configured to selectively open or close the switches, receive a comparison result from the comparator, and generate a digital output based On the comparison result. The control block is configured to control the switch timing of the unit capacitor array for reset, pre-charge, charge redistribution, and comparison phases, where a passive charge redistribution method may be utilized. | 06-14-2012 |
20120130663 | ON-LINE DIAGNOSTIC METHOD FOR HEALTH MONITORING OF A TRANSFORMER - An on-line diagnostic method for health monitoring of a transformer. In the case of a single phase or three phase star connected transformer deformations in the winding are determined by | 05-24-2012 |
20120106560 | INTER-DOMAIN ROUTING IN AN N-ARY-TREE AND SOURCE-ROUTING BASED COMMUNICATION FRAMEWORK - Systems and techniques for processing and forwarding packets are described. Specifically, some embodiments can include a receiving mechanism, a determining mechanism, a generating mechanism, and a sending mechanism. The receiving mechanism can be configured to receive a first packet that is to be routed from a first node in a first Autonomous System (AS) to a second node in a second AS. The determining mechanism can be configured to determine a set of bits that encodes a route in an n-ary tree that includes the first node and a root node in the first AS. The generating mechanism can be configured to generate, based on the first packet, a second packet that includes the set of bits and an identifier associated with the second AS. The sending mechanism can be configured to send the second packet. | 05-03-2012 |
20120106555 | LOW LATENCY CARRIER CLASS SWITCH-ROUTER - Systems and techniques for processing and forwarding packets are described. During operation, a system can receive a packet on an input port. Next, the system can identify a set of bits in the packet that represents a route from a source node to a destination node in an n-ary tree. The system can then determine an output port based on a subset of the set of bits. Next, the system can determine whether the output port is free. If the output port is not free, the system can use a contention resolution mechanism to store the packet in an on-chip memory or an off-chip memory based on space availability and the packet's priority. If the output port is free, the system can send the packet through the output port. | 05-03-2012 |
20120058398 | PAN-PEO Gels with Improved Conductance and Solvent Retention - Disclosed are gel electrolytes comprising a polymer, which is polyacrylonitrile (PAN) and polyethylene oxide (PEO); a lithium salt; and a solvent, which is a carbonate solvent, a lactone solvent, or mixtures thereof. | 03-08-2012 |
20110300450 | POLYURETHANE GEL ELECTROLYTES WITH IMPROVED CONDUCTANCE AND/OR SOLVENT RETENTION - Disclosed are gel electrolytes comprising a polymer, which is a cross-linked polyurethane prepared from a poly(alkyleneoxide) triol and a diisocyanate compound; a lithium salt; and a solvent, which is a carbonate solvent, a lactone solvent, or mixtures thereof. | 12-08-2011 |
20110300061 | Polymer-mediated synthesis of ZnO nanostructures - Disclosed are methods for producing ZnO nanostructures, the methods comprising heating an aqueous solution comprising a zinc compound, a base, and a polymer which is polyvinylpyrrolidinone or poly(ethylene glycol). | 12-08-2011 |
20110215868 | Operational Amplifier Having Improved Slew Rate - A slew rate improved operational amplifier circuit is provided to improve the slew rates of an operational amplifier with minimal sacrifices in power dissipation and other operational amplifier parameters. To improve the slew rates of operational amplifiers, additional current sources are activated when a slewing operation is detected. The detection of slewing operations and the activation of current sources upon detection can be implemented using two comparator circuits—one for a positive slewing operation, and one for a negative slewing operation. A sub-45 nm FinFET implementation of this slew rate improvement concept was implemented and compared against slew rate optimized individual two-stage operational amplifiers. Simulations show that slew rates were significantly improved by the implementation of the comparator circuits (5590 V/μs vs. 273 V/μs), with minimal increases in power dissipation (78 μW vs. 46 μW). | 09-08-2011 |
20110207237 | OPTICAL FIBER PROBE - A biosensor having an optical fiber having at least one curved portion configured to enhance penetration of evanescent waves; and one or more nanoparticles associated with the optical fiber, and configured to enhance localized surface plasmon resonance. | 08-25-2011 |
20110194788 | System and Method for Fusing Images - A system and method for generating a fused image is provided. The system comprises processing circuitry configured to receive a plurality of images, filter each received image using an edge preserving filter, compute a weight for each received image based on the corresponding filtered image and the received image and generate a fused image based on the weights of each received image. The system further comprises a memory device configured to store the fused image. | 08-11-2011 |
20110158474 | IMAGE OBJECT TRACKING AND SEGMENTATION USING ACTIVE CONTOURS - A method of image object tracking and segmentation is provided. The method includes defining an initial contour for tracking an image object and partitioning the initial contour into a plurality of contour segments. The method also includes estimating a weighted length of each of the plurality of contour segments and generating a desired contour by converging the plurality of contour segments to a plurality of edges of the image object using the estimated weighted length. | 06-30-2011 |
20110147588 | System and Method for Fusing Images - A system and method for generating a fused image is provided. The system comprises processing circuitry configured to access a plurality of images, group the images into a plurality of sets, fuse the images of each set to form a plurality of fused images and fuse the fused images to form a final fused image. | 06-23-2011 |
20110142282 | VISUAL OBJECT TRACKING WITH SCALE AND ORIENTATION ADAPTATION - A method of tracking an object that appears in a plurality of image frames is provided. The method includes (a) dividing an identified object of one of the plurality of image frames into a plurality of object segments and (b) tracking a location of each of the plurality of object segments in the image frame. The method also includes (c) estimating at least one of scale and orientation of the object using the location of each of the plurality of object segments and (d) obtaining position of the object using the estimated scale and orientation. | 06-16-2011 |
20110106442 | COLLISION AVOIDANCE SYSTEM AND METHOD - Systems and methods for collision avoidance. The systems and methods include a global positioning system (GPS) device, motion sensors, and a geographic information system (GIS) device. | 05-05-2011 |