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Chandra, US
Abhijit Chandra, Ames, IA US
| Patent application number | Description | Published |
|---|---|---|
| 20080245068 | METHOD AND APPARATUS FOR ENERGY HARVESTING THROUGH PHASE-CHANGE INDUCED PRESSURE RISE UNDER COOLING CONDITIONS - A method and apparatus for generating power which includes a phase-change media (PCM) that expands upon cooling contained within an expandable capsule if the phase change involves solidification (if phase change is solid-solid, then capsules are not needed), a carrier liquid that does not freeze in the operating temperature range, a heat exchanger, and an engine. Alternatively, the method and apparatus can include a PCM contained within a layer next to the walls of a constant volume container, a working liquid within the container that does not freeze in the operating temperature range, a heat exchanger, and an engine. In both cases, the engine denotes a device that converts the energy in the high-pressure liquid into electrical or mechanical power. | 10-09-2008 |
| 20110111381 | METHOD AND SOFTWARE FOR INTERACTIVE LEARNING OF ENGINEERING STATICS - The present invention provides a computer-implemented method of problem solving that includes graphically displaying a plurality of concepts, dynamic links between the concepts, and solving a problem based on the displayed concepts and dynamic links. Other embodiments include: a computer-readable medium having instructions thereon for causing a suitably programmed information-processing apparatus to perform a method of the problem solving that includes graphically displaying a plurality of concepts, displaying dynamic links between the concepts, and solving a problem based on the displayed concepts and dynamic links. Still other embodiments include a computerized apparatus that includes a display output unit, a display drive unit that causes a plurality of concepts to be displayed on the display unit, and that causes dynamic links between the concepts to be displayed, and a solution unit that solves a problem based on the displayed concepts and dynamic links, and that displays the solution. | 05-12-2011 |
Amitabh Chandra, Ada, MI US
| Patent application number | Description | Published |
|---|---|---|
| 20090011054 | Plant-based formulations for improving liver health - The present invention is directed to plant based formulations for improving liver health by protecting the liver from alcohol and chemical insults and/or by inducing phase II enzymes. Formulations according to the present invention include wasabi root fiber powder, artichoke leaf extract, asparagus dehydrate, kudzu root extract, oregano extract, schisandra berry extract, notoginseng (ethanol extract of | 01-08-2009 |
Arunesh Chandra, Sammamish, WA US
| Patent application number | Description | Published |
|---|---|---|
| 20100180281 | OFFLINE MIGRATION FROM PRIOR OPERATING SYSTEM INSTALLATION - Migration of data relevant to, or associated with, one or more users from a prior operating system installation to a new operating system installation can be performed with reference to an archive of some or all of the data on a storage media made prior to the installation of a new operating system. Manifests associated with operating system components can be referenced to identify data to be transferred from those operating system components to new versions of those components. Independently generated manifests can also be referenced to migrate the files and data for one or more application programs, such as popular or commonly found application programs. User data and files to be migrated can be identified by loading registration database files from the offline operating system in the new operating system, or otherwise parsing a similar construct from the offline operating system. | 07-15-2010 |
Basavaraju Chandra, Batavia, OH US
| Patent application number | Description | Published |
|---|---|---|
| 20100235157 | SYSTEM AND METHOD FOR SOA-BASED WIRE HARNESS DEVELOPMENT - A method for operating a service oriented architecture (SOA) based wire harness system, a corresponding system, and a machine readable medium. The method includes storing wire harness data in a wire harness data model in a wire harness data processing system, interactively communicating the wire harness data with an electronic computer aided design (ECAD) system and a mechanical computer aided design (MCAD) system through the SOA interface, and storing the wire harness data in the wire harness data model. | 09-16-2010 |
Bhavna Chandra US
| Patent application number | Description | Published |
|---|---|---|
| 20110083366 | PERMEABLE NON-WOVEN FABRIC BASED PACKAGING FOR CUT FLOWERS - Packaging using Gas Permeable Non-Woven Fabric based Film extends the shelf life and vase life of fresh cut flowers by changing the atmosphere in which these living products are stored and respires. The high oxygen and carbon dioxide permeability of the Gas Permeable Non-Woven Fabric based Film establishes an ideal atmosphere for the cut flowers, and therefore extends its shelf life and vase life. The establishment of lower oxygen and carbon dioxide atmospheres inside packages using Gas Permeable Non-Woven Fabric based film, also leads to reduction in the respiration rate of the cut flowers. The reduction in the respiration rate prevents loss of moisture, production of metabolic heat, and yellowing, browning, reduction in production levels of ethylene. Thus the created atmosphere is able to extend shelf life, maintain high quality and preserve nutrients of cut flowers items by naturally regulating respiration of said flower. | 04-14-2011 |
Dinesh Chandra, Philadelphia, PA US
| Patent application number | Description | Published |
|---|---|---|
| 20100158960 | POROUS POLYMER COATING FOR TOOTH WHITENING - The present invention relates to a tooth-whitening composition comprising (i) a substantially water-insoluble and substantially non-degradable polymer matrix component capable of adhering to the surface of a tooth, provided that if the polymer matrix component is in non-solid form, it is solidifable by chemical alteration; and (ii) gas- or liquid-filled pores embedded in said polymer matrix component, wherein at least a portion of said gas- or liquid-filled pores have at least one size dimension in the range of about 70 nm to about 5 microns, and wherein the gas- or liquid-filled pores and polymer matrix component possess a difference in refractive index of at least 0.1. The invention is also directed to a tooth-whitening system containing the above composition in combination with an applicator device. The invention is also directed to methods for applying the tooth-whitening composition onto teeth. | 06-24-2010 |
| 20110033672 | PATTERNING STRUCTURES USING DEFORMABLE SUBSTRATES - Aspects of the present invention describe soft imprint lithography methods capable of preparing structural features on surfaces. Disclosed methods include surmounting a deformable substrate, having an original form, with a composition, wherein the deformable substrate is capable of achieving at least one predetermined deformed state; predictably deforming said deformable substrate from its original form to the at least one predetermined deformed state; and transferring at least a portion of the composition surmounting the deformed substrate to a receiving substrate. | 02-10-2011 |
D. Navin Chandra, Framingham, MA US
| Patent application number | Description | Published |
|---|---|---|
| 20090313189 | METHOD, SYSTEM AND APPARATUS FOR ASSEMBLING AND USING BIOLOGICAL KNOWLEDGE - Disclosed are methods, systems and apparatus for constructing assemblies of biological knowledge constituting a biological knowledge base, and for subsetting and transforming life sciences-related data and information into biological models to facilitate computation and electronic reasoning on biological information. A subset of data is extracted from a global knowledge base or repository to reconstruct a more specialized sub-knowledge base or assembly designed specifically for the purpose at hand. Assemblies generated by the invention permit selection and rational organization of seemingly diverse data into a model of any selected biological system, as defined by any desired biological criteria. These assemblies can be mined easily and can be logically reasoned with great productivity and efficiency. | 12-17-2009 |
| 20110270893 | System, method and apparatus for assembling and mining life science data - Method and system for managing and evaluating life science data. Life Science data is placed in a knowledge base, that may be used for a variety of analysis tasks. Creating a knowledge base from the life science data involves generating two or more nodes indicative of life science data, assigning to one or more pairs of nodes a representation descriptor that corresponds to a relationship between the nodes, and assembling the nodes and the relationship descriptor into a database, such that at least one of the nodes is joined to another node by a representation descriptor. In some embodiments, the representation descriptor includes a case frame that describes the relationships between elements of life science data. | 11-03-2011 |
Gaurav Chandra, Richardson, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20090096648 | APPARATUS AND METHOD FOR IMPROVING PERFORMANCE OF SIGMA-DELTA MODULATORS HAVING NON-IDEAL COMPONENTS - In an apparatus and method for improving performance of a third order, double-sampled, sigma-delta modulator (SDM), a first one of three feedback elements included in a feedback loop of the SDM is selected to complete the feedback loop during a first half-cycle of the clock used for the double-sampling. The first one is restricted from being reselected during a subsequent half-cycle of the clock until the first one is reset. A second one of the three feedback elements is selected during a second half-cycle of the clock that is consecutive to the first half-cycle, the second one being different than the first one. A third one of the three feedback elements is selected during a third half-cycle of the clock that is consecutive to the second half-cycle, the third one being different than the second one. | 04-16-2009 |
| 20090251164 | PROCESS AND TEMPERATURE INSENSITIVE FLICKER NOISE MONITOR CIRCUIT - In an apparatus and method for monitoring defects in wafers, a monitoring circuit is fabricated on an area of each one of the wafers. The monitoring circuit includes representative devices that replicate similar devices located in a die area of the wafers. Defects if present in the representative devices contribute to a generation of a noise, thereby causing an imbalance in a differential signal measurable across selected ones of the representative devices. A digitizing circuit that uses a common mode voltage as a reference to measure the imbalance digitizes the differential signal to a digital signal, the digital signal being indicative of the noise generated by the defects. The digital signal is stored over a configurable time interval to form a digital bit stream. The digital bit stream is compared to a reference to determine whether the defects are within an allowable range. | 10-08-2009 |
| 20090267693 | RESISTOR SELF-TRIM CIRCUIT FOR INCREASED PERFORMANCE - In a method and apparatus for trimming values of load resistors to reduce variations there between, a common mode feedback loop (CMFBL) included in a differential amplifier is switched from operating in a closed loop mode to operate in an open loop mode. The CMFBL includes an operational amplifier (OA) generating an output signal. A selector switch, coupled to receive the output signal, is operable to switch a path of the output signal in response to a CAL signal. In the closed loop mode, the selector switch routes the output signal to a feedback loop to provide a regulated current to the load resistors. In the open loop mode, the OA operates as a comparator and the output signal is provided as a digital signal. The selector switch provides the digital signal to a controller to digitally trim the values of the load resistors. | 10-29-2009 |
| 20100045497 | SCHEME FOR NON-LINEARITY CORRECTION OF RESIDUE AMPLIFIERS IN A PIPELINED ANALOG-TO-DIGITAL CONVERTER (ADC) - In a method and apparatus for compensating non-linearity of a gain of a residual amplifier (RA), a pipelined analog-to-digital converter (ADC) converts an analog input to a digital output (DO). The ADC includes a plurality of pipelined stages (PPS). Each stage, which includes an instance of the RA, provides a digital code corresponding to an output of the RA included in a preceding stage. A memory stores a piecewise linear representation for modeling the non-linearity of the gain. A calibrated gain of the RA corresponding to each region of a plurality of linear operating regions of the RA is stored in the memory. A gain adjuster adjusts the digital code for each one of the PPS in accordance with a gain factor derived from the calibrated gain for each one of the PPS. A constructor constructs the DO from the adjusted digital code received from each one of the PPS. | 02-25-2010 |
| 20100197053 | PROCESS AND TEMPERATURE INSENSITIVE FLICKER NOISE MONITOR CIRCUIT - In an apparatus and method for monitoring defects in wafers, a monitoring circuit is fabricated on an area of each one of the wafers. The monitoring circuit includes representative devices that replicate similar devices located in a die area of the wafers. Defects if present in the representative devices contribute to a generation of a noise, thereby causing an imbalance in a differential signal measurable across selected ones of the representative devices. A digitizing circuit that uses a common mode voltage as a reference to measure the imbalance digitizes the differential signal to a digital signal, the digital signal being indicative of the noise generated by the defects. The digital signal is stored over a configurable time interval to form a digital bit stream. The digital bit stream is compared to a reference to determine whether the defeats are within an allowable range. | 08-05-2010 |
| 20100259429 | METHODS AND APPARATUS FOR ERROR CANCELATION IN CALIBRATED CURRENT SOURCES - Methods and apparatus for error cancelation in calibrated current sources are disclosed. In an example, a digital to analog converter to convert digital bits into an analog output signal is described, including a plurality of current sources, a calibrator, and a current source selector. The example current sources output substantially identical currents, and the calibrator is selectively coupled to sequentially calibrate the current sources to a reference current. The example current source selector assigns respective ones of the plurality of current sources to the digital bits in accordance with a bit-to-current source sequence selected to reduce current error in the analog output and changes the assignments based on the current source coupled to the calibrator. | 10-14-2010 |
Hans Chandra, Carmel, IN US
| Patent application number | Description | Published |
|---|---|---|
| 20090097343 | METHOD AND SYSTEM FOR TESTING ADDRESS LINES - Method and systems are described for testing an address line inter- coupling a processor and a memory. The contents of a first address in the memory are initially compared with the contents of a second address in the memory, wherein each of the first and second addresses are addressable in the memory by a different value applied on the address line. If the contents of the first and second addresses match, the contents of either one of the first and second addresses are changed, and a subsequent comparison of the contents of the first and second memory addresses is performed. If the second comparison determines that contents of the first and second memory address still match, then a fault condition associated with the address line is identified. | 04-16-2009 |
Harry Chandra, Phoenix, AZ US
| Patent application number | Description | Published |
|---|---|---|
| 20110140283 | INTEGRATED CIRCUIT PACKAGING SYSTEM WITH A STACKABLE PACKAGE AND METHOD OF MANUFACTURE THEREOF - A method of manufacture of an integrated circuit packaging system includes: forming a base assembly having a cavity and a through conductor adjacent to the cavity; connecting a first device to the base assembly with the first device within the cavity; connecting a second device to the base assembly with the second device within the cavity; and connecting an interposer substrate having an exposed external side over the through conductor with the exposed external side facing away from the through conductor and exposed to ambient. | 06-16-2011 |
Lody Chandra, Las Vegas, NV US
| Patent application number | Description | Published |
|---|---|---|
| 20100223721 | Combination bathtub and spa - A combination bathtub and spa includes a tub enclosure that is adapted to contain a quantity of water, a drain having a drain valve that may be opened to drain water from the tub enclosure or closed to retain water therein, a supply system for supplying water to the tub enclosure, and a lid that is adapted to removably cover the tub enclosure. The combination bathtub and spa also includes a pump having an inlet and an outlet, a suction line that provides a path for water from the tub enclosure to the inlet of the pump, a jet nozzle that is located in the sidewall of the tub enclosure, and a jet nozzle supply line that provides a path for water from the outlet of the pump to the jet nozzle. A filter is provided to filter the water that flows into the tub enclosure, as well as a heater for heating the water that flows into the tub enclosure. A control valve is adapted to open to allow water to flow through the filter or to close to stop the flow of water through the filter. | 09-09-2010 |
Malavika Chandra, Lansdale, PA US
| Patent application number | Description | Published |
|---|---|---|
| 20090317856 | Multimodal Spectroscopic Systems and Methods for Classifying Biological Tissue - Multimodal optical spectroscopy systems and methods produce a spectroscopic event to obtain spectroscopic response data from biological tissue and compare the response data with preset criteria configured to correlate the measured response data and the most probable attributes of the tissue, thus facilitating classification of the tissue based on those attributes for subsequent biopsy or remedial measures as necessary. | 12-24-2009 |
| 20100330611 | Multimodal Spectroscopic Systems and Methods for Classifying Biological Tissue - Multimodal optical spectroscopy systems and methods produce a spectroscopic event to obtain spectroscopic response data from biological tissue and compare the response data with an empirical equation configured to correlate the measured response data and the most probable attributes of the tissue, thus facilitating classification of the tissue based on those attributes for subsequent biopsy or remedial measures as necessary. | 12-30-2010 |
Mohan Chandra, Merrimack, NH US
| Patent application number | Description | Published |
|---|---|---|
| 20090191336 | METHOD AND APPARATUS FOR SIMPIFIED STARTUP OF CHEMICAL VAPOR DEPOSITION OF POLYSILICON - A simplified startup CVD technique for Siemens type of reactors is disclosed. In one embodiment, a method for production of bulk polysilicon in a CVD reactor assembly includes evacuating stainless steel envelope to have substantially low oxygen content, applying radiant heat (e.g., using a heating element coated with silicon) to the stainless steel enclosure sufficient for raising silicon rods to a firing temperature, flowing process gas (H | 07-30-2009 |
| 20100080902 | METHOD AND APPARATUS FOR LOW COST PRODUCTION OF POLYSILICON USING SIEMEN'S REACTORS - A novel low cost polysilicon production technique for Siemens type reactors is disclosed. In one embodiment, a CVD reactor assembly includes a reactor forming a stainless steel envelope attached to a base plate. The stainless steel envelope is designed to receive a thermal fluid at room temperature and maintain a reactor wall temperature up to 450° C. A steam generator is configured to receive the thermal fluid having a temperature up to 450° C. from the reactor and generate a low pressure steam around 350° C. to 450° C. A low pressure steam turbine/generator is configured to receive the low pressure steam and generate electricity. In another embodiment, the steam generator is configured to receive heat from an external source in addition to the thermal fluid to generate super heated steam. A conventional steam turbine/generator receives the super heated steam and generates electricity. | 04-01-2010 |
Monica Chandra, Lexington, MA US
| Patent application number | Description | Published |
|---|---|---|
| 20080235075 | ENTERPRISE APPLICATION PERFORMANCE MONITORS - Methods, systems, and apparatus, including computer program products, implementing techniques for receiving a first information related to a first transaction associated with a first user session with a multi-tier enterprise application, the first information including performance data that is representative of how well components in at least two tiers of the enterprise application perform in executing the first transaction; and determining based on the first information whether the first transaction is associated with a prioritized aspect of the enterprise application, and if so, taking an action based on the determining. | 09-25-2008 |
Naveen Chandra, Kenosha, WI US
| Patent application number | Description | Published |
|---|---|---|
| 20100329425 | READOUT ELECTRONICS FOR PHOTON COUNTING AND ENERGY DISCRIMINATING DETECTORS - A data acquisition system includes a charge-sensitive amplifier (CSA) configured to receive a charge from an x-ray detector, the CSA includes a high-gain electronic voltage amplifier, an electrical energy storage device coupled with the amplifier, and an electrical resistor coupled with the amplifier. The data acquisition system includes a baseline sampling circuit configured to receive an output from the CSA and to sample a baseline signal from the CSA, at least one discriminator coupled to an output of the CSA and to an output of the baseline sampling circuit, the at least one discriminator configured to output a voltage if the output of the CSA exceeds a threshold, and a counter coupled to an output of the discriminator and configured to output a digital signal indicative of a photon count received at the x-ray detector and based on the output from the CSA and on the signal from the CSA. | 12-30-2010 |
| 20110051888 | Electronic Packaging Technique to Improve Sensor Failure Robustness - A modular sensor assembly comprises: sensor arrays electrically coupled to a sensor substrate; a plurality of integrated circuits with sensor signal processors electrically coupled to a package substrate; and an interconnect assembly including electrical paths configured to electrically couple analog output signals from a first sensor array to a first integrated circuit and from a second sensor to a second integrated circuit, the first sensor disposed adjacent to the second sensor. | 03-03-2011 |
| 20110081071 | METHOD AND APPARATUS FOR REDUCTION OF METAL ARTIFACTS IN CT IMAGES - A method and apparatus include acquisition of a view dataset based on x-rays received by a detector corresponding to a energy level, reconstruction of an initial image using the view dataset, the initial image comprising a plurality of metal voxels at respective metal voxel locations, and generation of a metal mask corresponding to the plurality of metal voxels within the initial image. The method and apparatus also include forward projection of the metal mask onto the view dataset to identify metal dexels in the view dataset, performance of a weighted interpolation based on the identified metal dexels to generate a completed view dataset, reconstruction of a final image using the completed view dataset, the final image comprising a plurality of image voxels corresponding to the metal voxel locations, and replacement of a portion of the plurality of image voxels corresponding to the metal voxel locations with smoothed metal values. | 04-07-2011 |
| 20110085719 | SYSTEM AND METHOD OF IMAGE ARTIFACT REDUCTION IN FAST KVP SWITCHING CT - A CT system includes a generator configured to energize an x-ray source to a first kilovoltage (kVp) and to a second kVp, and a computer that is programmed to acquire a first view dataset with the x-ray source energized to the first kVp and a second view dataset with the x-ray source energized to the second kVp, generate a base correction image using the first view dataset and the second view dataset, and reconstruct a pair of base material images from the first view dataset and from the second view dataset. The computer is also programmed to estimate artifact correlation in the pair of base material images using the base correction image, generate a pair of final base material images and a final monochromatic image, and correct one of the pair of final base material images and the final monochromatic image at a keV value using the estimated artifact correlation. | 04-14-2011 |
| 20110142194 | SYSTEM AND METHOD OF ACQUIRING MULTI-ENERGY CT IMAGING DATA - A CT system includes a rotatable gantry having an opening for receiving an object to be scanned, and a controller configured to apply a first kVp for a first time period, apply a second kVp for a second time period, wherein the second time period is different from the first time period, acquire a first asymmetric view dataset during at least a portion of the first time period, acquire a second asymmetric view dataset during at least a portion of the second time period, and generate an image using the acquired first and second asymmetric view datasets. | 06-16-2011 |
| 20110142312 | SYSTEM AND METHOD OF MITIGATING LOW SIGNAL DATA FOR DUAL ENERGY CT - A CT system includes a rotatable gantry having an opening for receiving an object to be scanned, and a controller configured to obtain kVp projection data at a first kVp, obtain kVp projection data at a second kVp, extract data from the kVp projection data obtained at the second kVp, add the extracted data to the kVp projection data obtained at the first kVp to generate mitigated projection data at the first kVp, and generate an image using the mitigated projection data at the first kVp and using the projection data obtained at the second kVp. | 06-16-2011 |
| 20110150175 | APPARATUS AND METHOD FOR SPECTRAL PROJECTION IMAGING WITH FAST KV SWITCHING - A CT system includes a gantry, an x-ray source configured to project x-rays toward an object, an x-ray detector positioned to receive x-rays from the x-ray source that pass through the object, a generator configured to energize the x-ray source to a first voltage and to a second voltage that is distinct from the first voltage, and a controller configured to cause the gantry to position the source and generator at a circumferential position during an imaging session, pass the object through the opening during the imaging session, cause the generator to energize the x-ray source to the first voltage and to the second voltage, acquire imaging data while the generator energizes the x-ray source to the first voltage and to the second voltage while the rotatable gantry is at the circumferential position, and generate an image using the imaging data. | 06-23-2011 |
| 20110150187 | APPARATUS AND METHOD FOR CALIBRATING AN X-RAY TUBE - An apparatus and method for calibrating an x-ray tube include a computer programmed to acquire a starter voltage/current value corresponding to a width, a length, or a position of a target focal spot capable of being generated by the x-ray tube. The computer is programmed to generate an electron beam and to steer the electron beam based on the starter voltage/current value. The computer is also programmed to steer the electron beam based on a value adjusted from the starter voltage/current value. The computer is programmed to calculate a final voltage/current value that is configured to generate the width, length, or position of the target focal spot based on the starter voltage/current value and the adjusted starter voltage/current value. | 06-23-2011 |
| 20120069952 | SYSTEM AND METHOD OF SPECTRAL CALIBRATION AND BASIS MATERIAL DECOMPOSITION FOR X-RAY CT SYSTEMS - An imaging system includes an x-ray source that emits a beam of x-rays toward an object, a detector that receives high frequency electromagnetic energy attenuated by the object, a data acquisition system (DAS) operably connected to the detector, and a computer operably connected to the DAS. The computer is programmed to compute detector coefficients based on a static low kVp measurement and a static high kVp measurement, capture incident spectra at high and low kVp during fast kVp switching, compute effective X-ray incident spectra at high and low kVp during fast kVp switching using the captured incident spectra, scan a water phantom and normalize the computed detector coefficients to water, adjust the computed effective X-ray incident spectra based on the normalized detector coefficients, compute basis material decomposition functions using the adjusted X-ray incident spectra, and generate one or more basis material density images using the computed basis material decomposition functions. | 03-22-2012 |
| 20120069953 | SYSTEM AND METHOD OF NOTCH FILTRATION FOR DUAL ENERGY CT - An imaging system includes an x-ray source that emits a beam of x-rays toward an object to be imaged, a detector that receives the x-rays attenuated by the object, a spectral notch filter positioned between the x-ray source and the object, a data acquisition system (DAS) operably connected to the detector, and a computer operably connected to the DAS and programmed to acquire a first image dataset at a first kVp, acquire a second image dataset at a second kVp that is greater than the first kVp, and generate an image of the object using the first image dataset and the second image dataset. | 03-22-2012 |
Naveen Chandra, Waukesha, WI US
| Patent application number | Description | Published |
|---|---|---|
| 20120039440 | SYSTEM AND METHOD OF OPTIMIZING A REPRESENTATION OF DUAL ENERGY SPECTRAL CT IMAGES - An imaging system includes an x-ray source, a detector, a data acquisition system (DAS) operably connected to the detector, and a computer operably connected to the DAS. The computer is programmed to obtain CT scan data with two or more incident energy spectra, decompose the obtained CT scan data into projection CT data of a first basis material and a second basis material, generate a first basis material image and a second basis material image using the decomposed projection CT data, generate a first monochromatic image from the first basis material image and the second basis material image at a first energy that is selected based on an amount of correlated noise at the first energy, noise-reduce the first monochromatic image to generate a noise-reduced first monochromatic image, and generate a final monochromatic image based at least on the noise-reduced first monochromatic image. | 02-16-2012 |
Naveen Stephan Chandra, Waukesha, WI US
| Patent application number | Description | Published |
|---|---|---|
| 20120076258 | MULTIPLE MATERIALS FOR THE ENHANCEMENT OF SPECTRAL NOTCH FILTRATION IN SPECTRAL IMAGING - An imaging system includes an x-ray source that emits a beam of x-rays toward an object to be imaged, a detector that receives the x-rays attenuated by the object, a spectral notch filter positioned between the x-ray source and the object, a data acquisition system (DAS) operably connected to the detector, and a computer operably connected to the DAS and programmed to acquire a first image dataset at a first kVp, acquire a second image dataset at a second kVp that is greater than the first kVp, and generate an image of the object using the first image dataset and the second image dataset. | 03-29-2012 |
Naveen Stephan Chandra, Kenosha, WI US
| Patent application number | Description | Published |
|---|---|---|
| 20090046913 | Methods and apparatus for data communication across a slip ring - A method for reducing bandwidth required for transmission of data in a device having two portions rotating with respect to one another. The first portion includes a data acquisition system (DAS) having a charge-to-digital converter and a digital signal processor (DSP) configured to receive and compress digital data from the charge-to-digital processor. The second portion includes a computer configured to receive data from the DAS. The DAS and computer are communicatively coupled via a slip ring having a finite transmission bandwidth. The computer is configured to reconstruct and display an image using compressed data. The method includes using the DAS to compress scan data to a predetermined number of mantissa bits and a predetermined number of exponent bits, transmitting the compressed data from the first portion to the second portion across the slip ring, and using the transmitted compressed data to reconstruct and display an image of an object. | 02-19-2009 |
| 20110158498 | NOISE REDUCTION METHOD FOR DUAL-ENERGY IMAGING - A method is provided that includes acquiring a first set of image data from X-rays produced at a first energy level and a second set of image data from X-rays produced at a second energy level. The method includes generating a first noise mask for a first basis material and a second noise mask for a second basis material and removing pixels corresponding to cross contaminating structural information from the first noise mask and the second noise mask. The method includes processing a first materially decomposed image generated from the first set of image data and the second set of digital data using the second noise mask after removal of the cross contaminating structural information and processing a second MD image generated from the first set of image data and the second set of digital data using the first noise mask after removal of the cross contaminating structural information. | 06-30-2011 |
Naveen Stephen Chandra, Kenosha, WI US
| Patent application number | Description | Published |
|---|---|---|
| 20110150171 | COMPUTED TOMOGRAPHY SYSTEM WITH DATA COMPRESSION AND TRANSFER - A computed tomography (CT) system that includes a rotational gantry and a stationary structure communicatively coupled to the rotational gantry is provided. The rotational gantry includes an X-ray source configured to emit an X-ray beam through a subject, an X-ray detector comprising one or more detector elements that receive incoming X-rays and to convert the incoming X-rays to image signals, and a data acquisition unit that processes the image signals to generate processed image data. The stationary structure is coupled to the rotational gantry via one or more slip rings that transfer the processed image data from the rotational gantry to stationary memory integral with the stationary structure via a bidirectional serial data exchange protocol. | 06-23-2011 |
Nishant Chandra, Shrewsbury, MA US
| Patent application number | Description | Published |
|---|---|---|
| 20090048843 | SYSTEM-EFFECTED TEXT ANNOTATION FOR EXPRESSIVE PROSODY IN SPEECH SYNTHESIS AND RECOGNITION - The inventive system can automatically annotate the relationship of text and acoustic units for the purposes of: (a) predicting how the text is to be pronounced as expressively synthesized speech, and (b) improving the proportion of expressively uttered speech as correctly identified text representing the speaker's message. The system can automatically annotate text corpora for relationships of uttered speech for a particular speaking style and for acoustic units in terms of context and content of the text to the utterances. The inventive system can use kinesthetically defined expressive speech production phonetics that are recognizable and controllable according to kinesensic feedback principles. In speech synthesis embodiments of the invention, the text annotations can specify how the text is to be expressively pronounced as synthesized speech. Also, acoustically-identifying features for dialects or mispronunciations can be identified so as to expressively synthesize alternative dialects or stylistic mispronunciations for a speaker from a given text. In speech recognition embodiments of the invention, each text annotation can be uniquely identified from the corresponding acoustic features of a unit of uttered speech to correctly identify the corresponding text. By employing a method of rules-based text annotation, the invention enables expressiveness to be altered to reflect syntactic, semantic, and/or discourse circumstances found in text to be synthesized or in an uttered message. | 02-19-2009 |
| 20100161327 | SYSTEM-EFFECTED METHODS FOR ANALYZING, PREDICTING, AND/OR MODIFYING ACOUSTIC UNITS OF HUMAN UTTERANCES FOR USE IN SPEECH SYNTHESIS AND RECOGNITION - A computer-implemented method for automatically analyzing, predicting, and/or modifying acoustic units of prosodic human speech utterances for use in speech synthesis or speech recognition. Possible steps include: initiating analysis of acoustic wave data representing the human speech utterances, via the phase state of the acoustic wave data; using one or more phase state defined acoustic wave metrics as common elements for analyzing, and optionally modifying, pitch, amplitude, duration, and other measurable acoustic parameters of the acoustic wave data, at predetermined time intervals; analyzing acoustic wave data representing a selected acoustic unit to determine the phase state of the acoustic unit; and analyzing the acoustic wave data representing the selected acoustic unit to determine at least one acoustic parameter of the acoustic unit with reference to the determined phase state of the selected acoustic unit. Also included are systems for implementing the described and related methods. | 06-24-2010 |
Nripen Chandra, Columbia, MO US
| Patent application number | Description | Published |
|---|---|---|
| 20090117045 | Soy or lentil stabilized gold nanoparticles and method for making same - The invention provides stabilized, biocompatible gold nanoparticles that are stabilized with material from soy or lentil plant material or a reactive extract thereof of the plant material. The gold nanoparticles of the invention can be fabricated with an environmentally friendly method for making biocompatible stabilized gold nanoparticles. In methods of the invention, an aqueous solution containing gold salts is mixed with soy or lentil plant material or a reactive extract thereof. In preferred embodiment methods of making, an aqueous solution containing gold salts is provided. The aqueous solution is mixed with soy or lentil plant material or a reactive extract thereof. The gold salts react to form biocompatible gold nanoparticles that are stabilized with a robust coating derived of the soy or lentil plant material or a reactive extract thereof. | 05-07-2009 |
N Satish Chandra, Lansdale, PA US
| Patent application number | Description | Published |
|---|---|---|
| 20090025359 | Process for creating spun yarn - Input fibers to be used for the manufacture of textile components are cut to a proper length [ | 01-29-2009 |
Prafulla Chandra, Highland Park, NJ US
| Patent application number | Description | Published |
|---|---|---|
| 20090317472 | CONTROLLED RELEASES OF ACTIVES IN SKIN - Topical compositions are provided in which active compounds for topical delivery through the stratum corneum are complexed with nanospheres of a triblock copolymer having an A-B-A structure wherein each A end block is a water-soluble, hydrophilic and non-toxic polymer or oligomer; and the hydrophobic middle B block is a hydrophobic polymer or oligomer with the same or different repeating units having the structure according to formula:(I) wherein X is —C —R—C— or —C—; Z is between 2 and about 100, inclusive; R | 12-24-2009 |
Ranveer Chandra, Kirland, WA US
| Patent application number | Description | Published |
|---|---|---|
| 20090196180 | Dynamic Time-Spectrum Block Allocation for Cognitive Radio Networks - Dynamic time-spectrum block allocation for cognitive radio networks is described. In one implementation, without need for a central controller, peer wireless nodes collaboratively sense local utilization of a communication spectrum and collaboratively share white spaces for communication links between the nodes. Sharing local views of the spectrum utilization with each other allows the nodes to dynamically allocate non-overlapping time-frequency blocks to the communication links between the nodes for efficiently utilizing the white spaces. The blocks are sized to optimally pack the available white spaces. The nodes regularly readjust the bandwidth and other parameters of all reserved blocks in response to demand, so that packing of the blocks in available white spaces maintains a fair distribution of the overall bandwidth of the white spaces among active communication links, minimizes finishing time of all communications, reduces contention overhead among the nodes contending for the white spaces, and maintains non-overlapping blocks. | 08-06-2009 |
Shubham Chandra US
| Patent application number | Description | Published |
|---|---|---|
| 20110083366 | PERMEABLE NON-WOVEN FABRIC BASED PACKAGING FOR CUT FLOWERS - Packaging using Gas Permeable Non-Woven Fabric based Film extends the shelf life and vase life of fresh cut flowers by changing the atmosphere in which these living products are stored and respires. The high oxygen and carbon dioxide permeability of the Gas Permeable Non-Woven Fabric based Film establishes an ideal atmosphere for the cut flowers, and therefore extends its shelf life and vase life. The establishment of lower oxygen and carbon dioxide atmospheres inside packages using Gas Permeable Non-Woven Fabric based film, also leads to reduction in the respiration rate of the cut flowers. The reduction in the respiration rate prevents loss of moisture, production of metabolic heat, and yellowing, browning, reduction in production levels of ethylene. Thus the created atmosphere is able to extend shelf life, maintain high quality and preserve nutrients of cut flowers items by naturally regulating respiration of said flower. | 04-14-2011 |
Shubham Chandra, Milford, MA US
| Patent application number | Description | Published |
|---|---|---|
| 20090239432 | Gas permeable non-woven fabric based film for extending the shelf life of fresh fruits & vegetables and vase life of fresh cut flowers - Packaging using Gas Permeable Non-Woven Fabric based Film extends the shelf life of various fresh fruits and vegetables and vase life of fresh cut flowers by changing the atmosphere in which these living products are stored and respires. The high oxygen and carbon dioxide permeability of the Gas Permeable Non-Woven Fabric based Film establishes an ideal atmosphere for the specific perishable item, and therefore extends its shelf life. The establishment of lower oxygen and carbon dioxide atmospheres inside packages using Gas Permeable Non-Woven Fabric based film, also leads to reduction in the respiration rate of the perishable items. The reduction in the respiration rate prevents loss of moisture, production of metabolic heat, and yellowing, browning, reduction in production levels of ethylene. Thus the created atmosphere is able to extend shelf life, maintain high quality and preserve nutrients of fresh produce items by naturally regulating respiration of said produce/flower. | 09-24-2009 |
| 20110048252 | SHELF LIFE EXTENDING CONTAINER FOR FRUITS AND VEGETABLES - The Shelf Life Extending Container for fruits and vegetables extends the shelf life of various fresh fruits and vegetables and vase life of fresh cut flowers by changing the atmosphere in which these living products are stored and respires. The Shelf Life Extending Container does this by utilizing a Gas Permeable Non-Woven Fabric Based Film. The high oxygen and carbon dioxide permeability of the Gas Permeable Non-Woven Fabric Based Film establishes an ideal atmosphere for the multiple perishable items stored within the Shelf life Extending Container, and therefore extends their shelf life. The establishment of lower oxygen and carbon dioxide atmospheres within the Shelf Life Extending Container using the Gas Permeable Non-Woven Fabric Based Film, also leads to a reduction in the respiration rate of the perishable items stored. The reduction in the respiration rate of the perishable items prevents loss of moisture, production of metabolic heat, yellowing, browning, and reduces the production levels of ethylene by the perishable items. Therefore, the created atmosphere is able to extend shelf life, maintain high quality, and preserve nutrients of fresh produce items by naturally regulating respiration of said produce/flowers. | 03-03-2011 |
| 20120031797 | PERMEABLE NON-WOVEN FABRIC BASED PACKAGING - Packaging using Gas Permeable Non-Woven Fabric based Film extends the shelf life of various fresh fruits and vegetables and vase life of fresh cut flowers by changing the atmosphere in which these living products are stored and respires. The high oxygen and carbon dioxide permeability of the Gas Permeable Non-Woven Fabric based Film establishes an ideal atmosphere for the specific perishable item, and therefore extends its shelf life. The establishment of lower oxygen and carbon dioxide atmospheres inside packages using Gas Permeable Non-Woven Fabric based film, also leads to reduction in the respiration rate of the perishable items. The reduction in the respiration rate prevents loss of moisture, production of metabolic heat, and yellowing, browning, reduction in production levels of ethylene. Thus the created atmosphere is able to extend shelf life, maintain high quality and preserve nutrients of fresh produce items by naturally regulating respiration of said produce/flower. | 02-09-2012 |
Subhash Chandra, West Hartford, CT US
| Patent application number | Description | Published |
|---|---|---|
| 20120076255 | ALTERNATE FEEDWATER INJECTION SYSTEM TO MITIGATE THE EFFECTS OF AIRCRAFT IMPACT ON A NUCLEAR POWER PLANT - The present invention relates to an alternate feedwater injection system to at least partially mitigate the effects of an aircraft impact on a light water nuclear reactor positioned in a reactor building. The light water nuclear reactor has a primary system and a reactor core. The alternate feedwater injection system includes a water storage tank, an injection point into the primary system, a pump capable to transfer water from the water storage tank to the injection point and ultimately to the reactor core. The water storage tank and pump are located external to a reactor building and outside of an identified aircraft impact area or inside the identified aircraft impact area and provided with a means of protection from the aircraft impact. | 03-29-2012 |
Sujoy Chandra, Pittsburgh, PA US
| Patent application number | Description | Published |
|---|---|---|
| 20090295201 | Convertible Seating Unit - A convertible seating unit for a motor vehicle is provided. The convertible seating unit comprises a seat having an upper surface, a front edge and a rear edge. The convertible seating unit further includes a back support comprising a first back support panel and a second back support panel. Each of the first and second back support panels has a first edge and a second edge, and an upper surface and a lower surface. The second edge of the first back panel is hingeably connected to the first edge of the second back panel to define a first hinge axis. The first edge of the first back panel is hingeably connected to the seat proximate the rear edge of the seat to define a second hinge axis. | 12-03-2009 |
Sumit Chandra, Longmont, CO US
Umesh Chandra, Allen, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20110239279 | DRM Protected Content Sharing - A system and method for transmitting protected real-time content from one user to another is described. In a first aspect, a user sends a Rights Object to another user. In a second aspect, a user sends a Rights Object to another user via an intermediate server for a multiparty communication. In this second aspect, the users may be able to switch between designated Rights Objects as needed. | 09-29-2011 |
| 20110239280 | DRM Protected Content Sharing - A system and method for transmitting protected real-time content from one user to another is described. In a first aspect, a user sends a Rights Object to another user. In a second aspect, a user sends a Rights Object to another user via an intermediate server for a multiparty communication. In this second aspect, the users may be able to switch between designated Rights Objects as needed. | 09-29-2011 |