# Rizvi

## Haider A. Rizvi, Richmond Hill CA

## Haider Abbas Rizvi, Richmond Hill CA

Patent application number | Description | Published |
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20090024677 | SYSTEM FOR REDUCING OVERHEAD OF VALIDATING CONSTRAINTS IN A DATABASE - System for reducing the overhead of validating constraints in a database are provided. A target table and a source table are provided. The source table includes data to be loaded into the target table. Data is loaded into the target table from the source table including eliminating any logic to validate a constraint defined on the target table based on one or more pre-determined conditions. | 01-22-2009 |

## Mohammad Saklain Rizvi, Baroda IN

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20110275973 | HIV FILTRATION MACHINE AND METHOD OF FILTERING HIV USING THE MACHINE AND METHOD OF DETECTING HIV VIRUS DURING FILTRATION - A HIV filtration machine and method of filtration using the machine and method of detecting HIV, the said machine comprising an acrylic cylindrical tube divided into three portions i.e. needle portion ( | 11-10-2011 |

## Saiyidmohammadirshad Rizvi, New Delhi IN

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20140111010 | Apparatus for Reference Voltage Generating Circuit - An apparatus comprises a reference voltage bias generator configured to generate a first reference voltage and a second reference voltage. During a low supply mode, the first reference voltage is equal to a supply voltage potential and the second reference voltage is equal to a ground potential. During a high supply mode, the first reference voltage is equal to a first fraction times the supply voltage potential and the second reference voltage is equal to a second fraction times the supply voltage potential. The apparatus further includes a reference voltage booster coupled to the reference voltage bias generator, wherein the reference voltage booster is configured to generate the first reference voltage and the second reference voltage with increased drive capability. | 04-24-2014 |

## Saiyid Mohammad Irshad Rizvi, New Delhi IN

Patent application number | Description | Published |
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20090167363 | REDUCTION OF SIGNAL SKEW - Skew is reduced by extracting the AC component of an input signal and superimposing it on a common reference voltage to produce a resulting voltage. The resulting voltage is provided as an input to a comparator, which compares it to the reference voltage to provide a final output. Thus, all signals fed to a system, in accordance with an embodiment, are referenced at the same DC level and hence, skew is reduced. | 07-02-2009 |

20100213980 | ARCHITECTURE FOR EFFICIENT USAGE OF IO - An IO buffer module optimized for a wide range of drive levels both in terms of area and performance that includes an IO cell module and at least one IO adder module operatively coupled to said IO cell module for enabling the IO buffer module for the wide range of drive levels. The IO adder module can be added with the cell module in a number of different combinations for providing the wide range of drive levels, and the IO buffer module can provide drive solutions from 1 mA to 10 mA or higher, in steps of 0.5 mA drive level. | 08-26-2010 |

## Saiyid Mohammad Irshad Rizvi, Greater Noida IN

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20120013386 | LEVEL SHIFTER - A level shifter includes an output stage transistor and a level controller. The level controller receives a selection signal and provides a reference voltage at a gate terminal of the output stage transistor based on the selection signal. The output stage transistor, on being enabled by the reference voltage, provides a first level shifted output based on a first output reference voltage. | 01-19-2012 |

## Saiyid Mohammed Irshad Rizvi, New Delhi IN

Patent application number | Description | Published |
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20120086469 | REDUCTION OF SIGNAL SKEW - Skew is reduced by extracting the AC component of an input signal and superimposing it on a common reference voltage to produce a resulting voltage. The resulting voltage is provided as an input to a comparator, which compares it to the reference voltage to provide a final output. Thus, all signals fed to a system, in accordance with an embodiment, are referenced at the same DC level and hence, skew is reduced. | 04-12-2012 |

## Syed Rizvi, Brampton CA

Patent application number | Description | Published |
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20140086964 | Slurry Powder Cosmetic Compositions and Methods - Slurry powder cosmetic composition comprising particulates coated with a binder composition, a silicone gel composition, and the evaporation residue of an aqueous based composition and a method for making the composition. | 03-27-2014 |

20140154294 | Slurry Powder Cosmetic Compositions and Methods - Slurry powder cosmetic composition comprising particulates coated with a binder composition, a silicone gel composition, and the evaporation residue of an alcohol based composition and a method for making the composition. | 06-05-2014 |

## Syed Z. Rizvi, Karachi PK

Patent application number | Description | Published |
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20140172126 | REDUCED COMPLEXITY AUTO-TUNING PROCESS CONTROLLER SYSTEM AND METHOD - The reduced complexity auto-tuning process controller system and method is a control scheme in which, for each process variable, a single gain K, which is initialized with a sufficiently small value, is iteratively auto-tuned using a predetermined discrete sample time and learning rate. A plant error is calculated and summed with an output of a one-sample delay, the sum being input to the one-sample delay. The combined output of the one-sample delay is multiplied by the input signal, i.e., used as a gain constant of the control input signal. The control input signal times this gain constant is fed to the plant input, thereby reducing error in the plant. | 06-19-2014 |

## Syed Z. Rizvi, Dhahran SA

Patent application number | Description | Published |
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20110125684 | Method for identifying multi-input multi-output hammerstein models - The method for the identifying of multiple input, multiple output (MIMO) Hammerstein models that includes modeling of the linear dynamic part of a Hammerstein model with a state-space model, and modeling the nonlinear part of the Hammerstein model with a radial basis function neural network (RBFNN). | 05-26-2011 |

20110125685 | Method for identifying Hammerstein models - The identification of Hammerstein models relates to a computerized method for identifying Hammerstein models in which the linear dynamic part is modeled by a space-state model and the static nonlinear part is modeled using a radial basis function neural network (RBFNN), and in which a particle swarm optimization (PSO) algorithm is used to estimate the neural network parameters and a numerical algorithm for subspace state-space system identification (N4SID) is used for estimation of parameters of the linear part. | 05-26-2011 |

20110125686 | Method for identifying Hammerstein models - The computerized method for identifying Hammerstein models is a method in which the linear dynamic part is modeled by a space-state model and the static nonlinear part is modeled using a radial basis function neural network (RBFNN). Accurate identification of a Hammerstein model requires that output error between the actual and estimated systems be minimized. Thus, the problem of identification is an optimization problem. A hybrid algorithm, based on least mean square (LMS) principles and the Subspace Identification Method (SIM) is developed for the identification of the Hammerstein model. LMS is a gradient-based optimization algorithm that searches for optimal solutions in the negative direction of the gradient of a cost index. In the method, LMS is used for estimating the parameters of the RBFNN. For estimation of state-space matrices, the N4SID algorithm for subspace identification is used. | 05-26-2011 |

20110125687 | Method for hammerstein modeling of steam generator plant - The method for Hammerstein modeling of a steam generator plant includes modeling of the linear dynamic part of a Hammerstein model with a state-space model, and modeling the nonlinear part of the Hammerstein model with a radial basis function neural network (RBFNN). Particle swarm optimization (PSO), typically known for its heuristic search capabilities, is used for estimating the parameters of the RBFNN. Parameters of the linear part are estimated using a numerical algorithm for subspace state-space system identification (N4SID). | 05-26-2011 |

## Syed Zeeshan Rizvi, Dhahran SA

Patent application number | Description | Published |
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20130054500 | ROBUST CONTROLLER FOR NONLINEAR MIMO SYSTEMS - The robust controller for nonlinear MIMO systems uses a radial basis function (RBF) neural network to generate optimal control signals abiding by constraints, if any, on the control signal or on the system output. The weights of the neural network are trained in the negative direction of the gradient of output squared error. Nonlinearities in the system, as well as variations in system parameters, are handled by the robust controller. Simulation results are included in the end to assess the performance of the proposed controller. | 02-28-2013 |

20130262037 | PARTIAL DISCHARGE NOISE SEPARATION METHOD - The partial discharge noise separation method uses Independent Component Analysis (ICA) for de-noising partial discharge (PD) test signals having a noise signal component and a partial discharge component. Assuming that the noise signal component and the PD signal component are both statistically independent of each other and non-Gaussian, the ICA algorithm separates the noise component from the PD signal component from two partial discharge test signals acquired from two separate couplers per phase that are connected to the windings of a three-phase rotating machine. | 10-03-2013 |