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Krishnan, Bangalore

G. Venkata Krishnan, Bangalore IN

Patent application numberDescriptionPublished
20100091460ELECTRONIC MODULE WITH HEAT SINK - An electronic module includes a printed circuit board with a heat producing electrical component assembled in an insulating housing. The component is adjacent a thermally conducting heat sink with a thermally conductive material disposed therebetween. Integral with the heat sink is a thermally conductive runner, partially encased in the housing wall, connecting the heat sink to a thermally conductive port. The port is coupled to a base structure when the housing is attached to the base, forming a heat conduction path from the component to the base. This conductive path may also provide an electrical ground path from the printed circuit board to the base.04-15-2010

Kajoli Banerjee Krishnan, Bangalore IN

Patent application numberDescriptionPublished
20080296482METHOD AND SYSTEM OF OPTICAL IMAGING FOR TARGET DETECTION IN A SCATTERING MEDIUM - A method and system for fluorescence imaging of a target in a subject comprising a scattering medium is provided. The method comprises illuminating one or more points on a surface of the scattering medium using an illumination source, wherein the plurality of points define an illumination region, collecting emitted light from an illumination region and an area away from the illumination region, and generating an image of the scattering medium using the emitted light.12-04-2008
20110188720METHOD AND SYSTEM FOR AUTOMATED VOLUME OF INTEREST SEGMENTATION - Methods and systems and computer program products for automatically segmenting the volume of interest from intensity images are provided. The method for segmenting a volume of interest in an intensity image receives the intensity image and the scanner acquisition parameters used to acquire the intensity image. The method then scales the contrast of the intensity image based, at least in part, on the scanner acquisition parameters. The method segments the intensity image based, at least in part, on image data of the intensity image and the scanner acquisition parameters, to obtain the volume of interest.08-04-2011

Patent applications by Kajoli Banerjee Krishnan, Bangalore IN

Manikandan Krishnan, Bangalore IN

Patent application numberDescriptionPublished
20090276472Data processing system and method - A method of interpreting data in a first version of a data structure, the method comprising determining if the first version of the data structure is different to a currently used version of the data structure; and if the versions are different, then for each field of the currently used version of the data structure, determining if a corresponding field is present in the first version of the data structure; and if not, adding data to the field in the currently used version of the data structure according to interpretation rules.11-05-2009

Pavithra Krishnan, Bangalore IN

Patent application numberDescriptionPublished
20110106711DECISION SUPPORT SYSTEM AND METHOD FOR DISTRIBUTED DECISION MAKING FOR OPTIMAL HUMAN RESOURCE DEPLOYMENT - A decision support tool which takes a high-level view of supply and demand in the realm of labor resources and produces globally-optimal recommendations for assignment of practitioners to open seats. These assignments preferably optimize a utility function composed of different business metrics and can be customizable for different organizations and priorities.05-05-2011

Ramakrishnan Madenoor Krishnan, Bangalore IN

Patent application numberDescriptionPublished
20100226051METHOD AND APPARATUS FOR IMPROVING THE PERFORMANCE OF AN INVERTER - Aspects of the invention are directed to methods and apparatus to protect an inverter from failure due to neutral lifting. In one aspect, the present invention provides a method of controlling an inverter in a UPS, the inverter being selectively coupled to a power line and comprising an input to receive an input voltage from the power line. The method comprises acts of monitoring the input voltage, detecting based on the act of monitoring, that the input voltage exceeds a predetermined high threshold value, isolating the inverter from the power line responsive to detecting that the input voltage exceeds a predetermined high threshold value, determining whether or not a neutral lifting condition exists on the power line, indicating that the inverter is in a fault state if the neutral lifting condition exists, and reconnecting the inverter to the power line if the neutral lifting condition does not exist.09-09-2010
20110006737BATTERY CHARGING METHOD AND APPARATUS - Disclosed are methods for charging batteries utilizing a charge balance approach, and charger systems using those methods. In one example, a method for charging a battery includes monitoring an amount of charge released by the battery while in a discharge state, recording the amount of charge released while in the discharge state, applying a voltage which results in current in reverse direction to the battery at a first voltage level for a time sufficient to introduce an amount of charge substantially equal to the recorded amount of charge released by the battery while in the discharge state, and maintaining the battery in a stand-by mode by applying a voltage which results in current in reverse direction to the battery at a second voltage level, the second voltage level being in a range sufficient to prevent self-discharge of the battery and insufficient to induce evaporation of electrolyte in the battery.01-13-2011

Ramesh Krishnan, Bangalore IN

Patent application numberDescriptionPublished
20110103496IQ Impairment Estimation in an OFDM Signal - System and method for evaluating a transmitter by estimating IQ impairments in an orthogonal frequency division multiplexed (OFDM) signal generated by the transmitter. The OFDM signal may be received. The OFDM signal may represent a stream of symbols, each comprising a plurality of subcarriers. At least a subset of the subcarriers may be pilot subcarriers. The pilot subcarriers may be grouped into one or more groups of pilot subcarriers based on one or more conditions: a pilot subcarrier which satisfies a condition in its relation to a mirror subcarrier may be grouped with other pilot subcarriers which also satisfy the condition in relation to mirror subcarriers. An estimate of one or more of gain imbalance or quadrature skew of the OFDM signal may be calculated based on the one or more groups of pilot subcarriers and the one or more conditions. The estimate may be used to evaluate the transmitter.05-05-2011

Ranganathan Krishnan, Bangalore IN

Patent application numberDescriptionPublished
20110313812ACCOUNTING FOR DATA DEPENDENCIES IN PROCESS MODELS, ANALYSIS, AND MANAGEMENT - A method and system comprising a process model analysis module to perform analysis of a process supported by a process system. The analysis is performed based on process information which includes a logical process model defining a series of activities. The process model information further includes IT system dependency information which includes datastore dependency information indicative of datastores which are accessed in execution of respective activities. The process model information also includes data dependency information indicative of dependency of process activities on data in the one or more datastores.12-22-2011

Sanjeev Krishnan, Bangalore IN

Patent application numberDescriptionPublished
20100198799Method and Apparatus for Software Simulation - A software simulation method and program storage device for software defect detection and obtaining insight into software code is disclosed, where simulation consists of executing target software program code for multiple input values and multiple code paths at the same time, thus achieving 100% coverage over inputs and paths without actually running the target software. This allows simulation to detect many defects that are missed by traditional testing tools. The simulation method runs a plurality of algorithms where a plurality of custom defined and pre-defined rules are verified in target software to find defects and obtain properties of the software code.08-05-2010

Saravanan Krishnan, Bangalore IN

Patent application numberDescriptionPublished
20100185670MINING TRANSLITERATIONS FOR OUT-OF-VOCABULARY QUERY TERMS - An approach is described for using a query expressed in a source language to retrieve information expressed in a target language. The approach uses a translation dictionary to convert terms in the query from the source language to appropriate terms in the target language. The approach determines viable transliterations for out-of-vocabulary (OOV) query terms by retrieving a body of information based on an in-vocabulary component of the query, and then mining the body of information to identify the viable transliterations for the OOV query terms. The approach then adds the viable transliterations to the translation dictionary. The retrieval, mining, and adding operations can be repeated one or more or times.07-22-2010

Subramanian Krishnan, Bangalore IN

Patent application numberDescriptionPublished
20100023518ORDERING TELEMETRY MESSAGES - A method for ordering telemetry messages containing attributes individually not sufficient to establish total ordering is provided. An initial rank value is assigned for a first telemetry message. For a subsequent telemetry message, it is determined if an attribute of the subsequent telemetry message indicates an ordering of the subsequent telemetry message with respect to the first telemetry message. If the attribute indicates the ordering of the subsequent telemetry message, a subsequent rank value is assigned to the subsequent telemetry message one higher than a highest rank value already assigned, otherwise a correct slot of the subsequent message is determined by minimizing a distance from an S slot corresponding to the highest rank value already assigned to a first non-empty slot by application of a Lazy Walker algorithm.01-28-2010

Subramaniyan Krishnan, Bangalore IN

Patent application numberDescriptionPublished
20110244826MOBILE COMMUNICATION PLAN OFFERINGS - A mobile communication plan offering system and method described herein determines one or more best-fit mobile communication plan offers for mobile communication device (“MCD”) users. Subscribers can also be referred to as “mobile subscribers” or “subscribers”. The mobile communication plan offers typically consist of one or more modifications to a plan (also referred to as packs) or a complete plan including a base plan plus a pack and are based on a mobile usage pattern of a subscriber. In at least one embodiment, the mobile communication plan offering system and method analyzes MCD usage behavior of a subscriber, processes the usage behavior and current spending of the subscriber, and determines a mobile communication plan offering that, if adopted, will result in a positive economic benefit to the subscriber compared with the subscriber's current plan.10-06-2011

Sundararajan Krishnan, Bangalore IN

Patent application numberDescriptionPublished
20090295609SYSTEM AND METHOD FOR REDUCING POWER DISSIPATION IN AN ANALOG TO DIGITAL CONVERTER - A system and method for reducing the power dissipated in an Analog to Digital Converter (ADC). The method includes the steps of: receiving a residue output from a previous phase of a plurality of clock phases where the plurality of clock phases includes a sample-and-hold phase and an amplifying phase for sampling and amplifying an analog input signal respectively, eliminating an effect of load on a residue amplifier when amplifying the residue output to generate an amplified residue output in the amplifying phase, and eliminating an effect of small feedback factor when sampling the amplified residue output in the sample-and-hold phase. Power advantage is achieved by sharing the load on the residue amplifier across the sample-and-hold phase and the amplifying phase rather than being fully present in any one of the clock phases. The present invention also provides a method for reducing the number of comparators used in ADCs.12-03-2009

Venkataraghavan Punnapakkam Krishnan, Bangalore IN

Patent application numberDescriptionPublished
20080281894Digital architecture for DFT/IDFT hardware - Embodiments of the present invention can provide circuits and systems for computing a discrete Fourier transform (DFT) or an inverse discrete Fourier transform (IDFT). An embodiment includes an input circuit, an intermediate circuit, an output circuit, and an accumulator circuit. The input circuit can receive a set of input values, and can use a first set of degenerate rotators to generate a first set of intermediate values. The intermediate circuit can receive the first set of intermediate values, and can use a set of CORDICs (coordinate rotation digital computers) to generate a second set of intermediate values. The output circuit can receive the second set of intermediate values, and can use a second set of degenerate rotators to generate a third set of intermediate values. The accumulator circuit can receive the third set of intermediate values, and can use a set of accumulators to generate a set of output values.11-13-2008

Vivek Krishnan, Bangalore IN

Patent application numberDescriptionPublished
20100074099Access Port Adoption to Multiple Wireless Switches - An apparatus, network and techniques for minimizing wireless network downtime associated with a wireless switch failure are disclosed. Access ports are adopted to multiple wireless switches wherein one switch operates to exchange data and control traffic with the access port and remaining switches operate to exchange control traffic with the access port. In the event of a link failure between the wireless switch exchanging data and control traffic with the access port, the access port remains adopted to remaining switches and exchanges data and control traffic with one of the remaining switches.03-25-2010
20110251867METHOD AND SYSTEM FOR INTEGRATED OPERATIONS AND SERVICE SUPPORT - A method, system, and computer program product for initiating a plurality of incident and service requests are provided. Outages are checked corresponding to the incident and service requests. If the outages exist, they are displayed and mapped to the incident and service requests. If the outages do not exist, they are created if required and mapped corresponding to the incident and service requests. The incident and service requests are assigned to users available in a shift for solutions. If the solutions corresponding to the incident and service requests exist in a knowledge database, they are implemented. If the solutions corresponding to the incident and service requests do not exist in the knowledge database, they are created by the users available in the shift. Various checks are performed based on a checklist prior to the closure of the incident and service requests.10-13-2011

Yamuna Krishnan, Bangalore IN

Patent application numberDescriptionPublished
20100304370INTRACELLULAR PH SENSOR USING NUCLEIC ACID ASSEMBLIES - Disclosed are nucleic acid-based sensors for measuring the pH of a sample, including cells, regions thereof, and whole organisms. The sensor includes an I-switch that is triggered by protons, and which functions as a FRET-based pH sensor inside living cells and organisms. Also disclosed are compositions and methods for measuring the pH of a specific region of a cell, such as vesicles, the nucleus, mitochondrial matrix, or the Golgi lumen.12-02-2010
20110033706NANOCAPSULES AND METHODS FOR MODULAR ASSEMBLY - Disclosed are nanocapsules and methods of preparing these nanocapsules. The disclosure includes a modular assembly method of forming DNA nanocapsules. Discrete polyhedra are combined in a stepwise amalgamation to form icosahedra. The DNA nanocapsules may be used to encapsulate agents for drug delivery and other applications.02-10-2011
20110223676DNA-BASED MOLECULAR SWITCHES AND USES THEREOF - Disclosed are nucleic acid-based molecular switches that respond to changes in pH. The switches may be used in DNA nanodevices. The switches may also act as sensors for measuring the pH of a sample, including cells, regions thereof, and whole organisms. The switch includes an A-motif that forms at acidic pH. Also disclosed are compositions and methods for measuring the pH of cells or regions thereof, such as vesicles, the nucleus, mitochondrial matrix, or the Golgi lumen.09-15-2011