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Mandal, IN

Ajoy Mandal, Bangalore IN

Patent application numberDescriptionPublished
20090132972METHOD AND APPARATUS FOR DETERMINING ELECTRO-MIGRATION IN INTEGRATED CIRCUIT DESIGNS - A method and apparatus for determining electro-migration (EM) in integrated circuit designs is disclosed. In one embodiment, a method includes pre-characterizing an output current waveform for a logic cell of the circuit at selected load and input slew points, estimating an effective load and operating slews at a chip level of the circuit and directly generating an equivalent current source waveform at output, evaluating current densities through a metal segment of the circuit using a fast solver, parametrically representing process variations and a netlist to parametrically model the interconnect variations of the circuit, and determining current densities for selected yield numbers using a parametrically generated current source on an interconnect network, wherein calculated results statistically predict a point of current density less than 9−σ a through any metal segment in the parametrically modeled circuit. The method may further include comparing selected current densities with predetermined EM guidelines.05-21-2009
20090187868DESIGN OF INTEGRATED CIRCUITS LESS SUSCEPTIBLE TO DEGRADATIONS IN TRANSISTORS CAUSED DUE TO OPERATIONAL STRESS - According to an aspect of the present invention, statistical timing analysis is applied with respect to a stress degradation that occurs in fabricated integrated circuits (IC) when used for a long duration. The circuit design may be suitably modified to account for the degradations (e.g., those caused by NBTI and CHC for transistors, those caused due to electromigration in case of interconnects). As a result, the fabricated ICs may be less susceptible to such degradations. The features are extended to model complex circuit blocks and also account for different degrees of stress that different circuit blocks are subjected to, in a same age of operation.07-23-2009

Arundhati Mandal, Rabale IN

Patent application numberDescriptionPublished
20110311977In Vitro Generation of Hepatocytes from Human Embryonic Stem Cells - Differentiation of human pluripotent stem cells, such as human embryonic stem cells (hESC), into hepatocytes by in vitro methods is disclosed. The pluripotent stem cells are cultured in conditioned medium from the hepatocarcinoma cell line, HepG2. Specific growth factors and defined media may also be added to the medium for stage specific differentiation of the derived hepatocytes. Hepatocytes differentiated from human pluripotent stem cells may be characterized by fluorescence activated cell sorting (FACS), immunofluorescence analysis (IF), real time polymerase reaction (RT-PCR), and functional assays. The methods disclosed herein are able to differentiate high percentages of hepatocytes from human pluripotent stem cells using the disclosed methods. These differentiated cells may exhibit polygonal shape morphology, typical of hepatocytes, and may express hepatocyte specific genes. The differentiated cells may also be positive for definitive endoderm markers and hepatic markers.12-22-2011

Deendayal Mandal, Maharashtra IN

Patent application numberDescriptionPublished
20080227167PROCESS FOR IMMOBILIZED NANO-SIZED METAL PARTICLES - The present invention provides a new process using biological method for the preparation of immobilized nano-particles of metals. Fungi are used to efficiently prepare immobilized nano-particles of various metals ions such as Au, Ag, Pd, Pt, Ni, Rh and Ru from their aqueous solutions.09-18-2008

Dipankar Mandal, Bangalore IN

Patent application numberDescriptionPublished
20090237121Correlated double sampling technique - A sampling circuit according to correlated double sampling to generate a difference of two voltages at a sampling node, with the second voltage representing the sum of an input signal and an offset, and the first voltage representing the offset alone. In an embodiment, a first capacitor is charged to the first voltage in a first phase. A second capacitor is then charged to the second voltage in a second phase. In a third phase, the first capacitor is coupled to the input terminal of the amplifier and the second capacitor is coupled between the input and output terminals of the amplifier to cause the amplifier to generate the difference of the first and second voltages. The first capacitor has a capacitance much less than the second capacitor, thereby minimizing the noise power at the output of the amplifier.09-24-2009
20110133970MULTIPATH AMPLIFIER - Because of variations in open loop gain and bandwidth in successive approximate register (SAR) analog-to-digital converters (ADCs), designing amplifiers with the desired characteristics is difficult. Here, a multipath amplifier is provided that accounts for the variations in open loop gain and bandwidth. Preferably, a number of cascaded amplifiers are provided that can auto-zero to account for offset voltages so as to allow the multipath amplifier to be stable over the desired open loop gains and bandwidths.06-09-2011
20110304492MULTI-CHANNEL SAR ADC - For high voltage applications, multi-channel successive approximation register (SAR) analog-to-digital converters (ADCs) are often plagued with numerous problems that are generally associated with parasitics (which are present in high voltage components). Here, a different architecture is provided where the sampling capacitors are separated from conversion capacitors so as to have low voltage components in the conversion path. Additionally, to improve the acquisition time and reduced total harmonic distortion (THD) multiple channels can use the same sampling capacitors.12-15-2011

Dipan Kumar Mandal, Bangalore IN

Patent application numberDescriptionPublished
20100131744METHOD AND SYSTEM OF A PROCESSOR-AGNOSTIC ENCODED DEBUG-ARCHITECTURE IN A PIPELINED ENVIRONMENT - A method and/or a system of a processor-agnostic encoded debug architecture in a pipelined environment is disclosed. In one embodiment, a method of a processor includes processing an event specified by a data processing system coupled to the processor to determine a boundary of the event, generating a matrix having combinations of the event and other events occurring simultaneously in the processor, capturing an output data of observed ones of the event and other events, and applying the matrix to generate an encoded debug data of the output data. The method may also include determining which of the combinations are valid based on an architecture of the processor. The event may be a trace-worthy event whose output value cannot be reliably predicted in an executable file in the data processing system and/or a sync event that is specified by a user of the data processing system.05-27-2010

Jayanta Kumar Mandal, Gujarat IN

Patent application numberDescriptionPublished
20090196923CONTROLLED RELEASE FORMULATION COMPRISING ANTI-EPILEPTIC DRUGS - The present invention relates to pharmaceutical formulation of antiepileptic drug preferably oxcarbazepine. The formulation comprises multiple tablets or pellets of immediate release or controlled release nature, which are filled, inside the capsule to provides drug effect for 24 hours and is suitable for once a day administration. The patent also provides process of preparation of the dosage form.08-06-2009
20100178333SUSTAINED RELEASE DOSAGE FORM OF PHENOTHIAZINE DERIVATIVES CONTAINING CHANNELIZER - Once a day sustained release solid oral dosage form of phenothiazine derivative preferably the dibenzothiazepine derivative and their pharmaceutically acceptable salts comprising of a channelizer, rate controlling polymer and suitable pharmaceutically acceptable excipients. The formulation of the present invention is in the form of tablet or capsule which provides a sustained drug action upto 24 hours upon single dose administration.07-15-2010

Jayanta Kumar Mandal, Ahmedabad IN

Patent application numberDescriptionPublished
20090275647TAXANE DERIVATIVE COMPOSITION - A stable, absolutely ethanol free composition of docetaxel that prevents alcoholic intoxication or anaphylactic shock. The composition can be in the form of a stable injectable composition that includes a taxane derivative, wherein the composition includes a mixture of docetaxel, one or more stabilizer, one or more surfactant, or more co-solvent and water for injection wherein the composition is absolutely free of ethanol.11-05-2009
20100248376IN-VITRO METHOD FOR TESTING BIOEQUIVALENCE OF IRON-SUCROSE FORMULATION - The present disclosure relates to an in vitro method for measuring the T09-30-2010
20100267824STABLE OXALIPLATIN COMPOSITION FOR PARENTERAL ADMINISTRATION - The present invention relates to a stable parenteral composition of oxaliplatin having pH range in between 3 to 4.5, which comprises of a solution of oxaliplatin in water wherein the said pH is attained by sparging of carbon dioxide in the composition. Further, a method for the preparation of oxaliplatin composition of the present invention is also disclosed.10-21-2010
20110177137NOVEL DOSAGE FORM OF PALIPERIDONE AND PROCESS FOR PREPARING THE SAME - The present invention relates to an extended release composition of paliperidone for oral administration comprising paliperidone and at least one matrixing agent. The said extended release composition maintains desired therapeutic drug effect over a prolonged period of time and thereby reduces the side effects resulting due to excess drug blood plasma concentration. Further, the invention also relates to process for the preparation of an extended release oral composition of paliperidone.07-21-2011

Patent applications by Jayanta Kumar Mandal, Ahmedabad IN

Labanya Mandal, West Bengal IN

Patent application numberDescriptionPublished
20110142969EXTRACT OF PIPER BETEL LEAVES FOR THE TREATMENT OF HUMAN MALIGNANCIES BY INDUCING OXIDATIVE STRESS - This invention relates to method of treating human malignancies of different origin that are sensitive to oxidative stress by administering effective amount of extract of 06-16-2011

Pradip Mandal, Kharagpur IN

Patent application numberDescriptionPublished
20080204096Circuit and method to convert a single ended signal to duplicated signals - A circuit to convert a single ended signal to differential signals is disclosed. The circuit has two paths with each of the two paths comprising a plurality of stages. The number of stages in each of the two paths is the same. A first path of the two paths includes a buffer stage and at least one inverter stage. A second path of the two paths includes at least two inverter stages. The buffer stage has a delay matched to that of a first inverter stage of the second path. The buffer stage comprises a first pair of transistors comprising a first transistor of a first category operatively connected to a first transistor of a second category with their channel connections being connected in series.08-28-2008

Prateem Mandal, Magarpatta City IN

Patent application numberDescriptionPublished
20110072008Query Optimization with Awareness of Limited Resource Usage - System, method, computer program product embodiments and combinations and sub-combinations thereof for tuning query execution performance in a database management system are described. In an aspect, query optimization in a database management system (DBMS) with awareness of limited resource usage includes identifying limited resource usage for each possible plan being considered for query execution by a query engine. A determination of whether any possible plan has limited resource usage that does not exceed a threshold level is made, and when at least one possible plan does not exceed the threshold level, the identified limited resource usage is included as a consideration during plan selection by the query engine. In an embodiment, temporary database usage is identified for each possible plan.03-24-2011

Radhanath Mandal, East Midnapore IN

Patent application numberDescriptionPublished
20100099776OILY SUSPENSION OF ATOVAQUONE - The present invention relates to an oily suspension of atovaquone comprising atovaquone particles and a combination of surfactants having HLB more than 10.04-22-2010

Sajal Kumar Mandal, Howrah IN

Patent application numberDescriptionPublished
20090128104FULLY INTEGRATED ON-CHIP LOW DROPOUT VOLTAGE REGULATOR - A low dropout voltage regulator (LDO) includes a bias voltage generator, a differential error amplifier, an output driver, a controlled active load, a Double Ended Cascode Miller compensation block. The bias voltage generator produces a plurality of bias voltages. The differential error amplifier produces a differential output voltage based on the difference between a reference voltage and a function of the output voltage. The input terminal of the output driver is coupled to one output of the differential error amplifier. The substrate terminal of the output driver is capacitively coupled to the output node and resistively coupled to the input supply node. The controlled active load is coupled to the output of the output driver, and its control terminal is coupled to a function of the second output of the differential error amplifier. The inputs of the Double Ended Cascode Miller compensation block are capacitively coupled to the output node and its output is coupled to the input terminal of the output driver.05-21-2009
20090289610LOW DROPOUT REGULATOR - The present invention provides a low dropout (LDO) regulator with a stability compensation circuit. A “zero frequency” tracking as well as “non-dominant parasitic poles' frequency reshaping” are performed to achieve a good phase margin for the LDO by means of the compensation circuit. In this compensation method neither a large load capacitor nor its equivalent series resistance is needed to stabilize a regulator. LDO regulators, in system on chip application, having load capacitors in the range of few nano-Farads to few hundreds of nano-Farads can be efficiently compensated with this compensation method. A dominant pole for the regulator is realized at an internal node and the second pole at an output node of the regulator is tracked with a variable capacitor generated zero over a range of load current to cancel the effect of each other. A third pole of the system is pushed out above the unity gain frequency of the open loop transfer function with the help of the frequency compensation circuit. The compensation technique is very effective in realizing a low power, low-load-capacitor LDO desirable for system on chip applications.11-26-2009

Saroj Mandal, Kolkata IN

Patent application numberDescriptionPublished
20110100263Hot Spring Bacterial Strain BKH1 and Protein Isolated Therefrom, Concrete Compositions, and Uses Thereof - Disclosed is a 05-05-2011

Sukumar Mandal, Digvijaygram IN

Patent application numberDescriptionPublished
20110240523 FLUID CATALYTIC CRACKING (FCC) PROCESS FOR MANUFACTURING PROPYLENE AND ETHYLENE IN INCREASED YIELD - A fluid catalytic cracking (FCC) process for manufacturing propylene and ethylene in increased yield. The process comprises cracking an olefinic naphtha stream and main hydrocarbon stock in combination with an olefinic C10-06-2011

Tarun K. Mandal, Kolkata IN

Patent application numberDescriptionPublished
20090232901POLYMERIC MICROSPHERES - The invention features core-shell microsphere compositions, hollow polymeric microspheres, and methods for making the microspheres. The microspheres are characterized as having a polymeric shell with consistent shell thickness.09-17-2009