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| Number | Title | Issue Date |
| 8027742 | Fault detection systems and methods for self-optimizing heating, ventilation, and air conditioning controls A fault detection system for detecting a fault in a process system includes a first circuit configured to modify an input of the process system with a modifying signal. The fault detection system further includes a second circuit configured to receive an output from... | 09/27/2011 |
| 7953502 | Position control method, position control device, and medium storage device having disturbance suppression function In a position control device having a disturbance suppression function, loop gain is calibrated without stopping disturbance suppression control. The position control device has, for disturbance suppression control, a feedback controller for changing the loop charac... | 05/31/2011 |
| 7840287 | Robust process model identification in model based control techniques A robust method of creating process models for use in controller generation, such as in MPC controller generation, adds noise to the process data collected and used in the model generation process. In particular, a robust method of creating a parametric process mode... | 11/23/2010 |
| 7599751 | Adaptive multivariable MPC controller with LP constraints A method is disclosed for developing and using a high-speed adaptive multivariable controller by removing the dynamics of the PID controllers from a Model Predictive Controller that was developed using identification testing of a process. The resulting multivariable... | 10/06/2009 |
| 7447554 | Adaptive multivariable MPC controller A method is disclosed for developing and using a high-speed adaptive multivariable controller by removing the dynamics of the PID controllers from a Model Predictive Controller that was developed using identification testing of a process. The resulting multivariable... | 11/04/2008 |
| 7395125 | Method and controller for the adaptive control of at least one component of a technical plant The invention relates to a method in which at least one component of a technical plant is controlled by means of a PI controller. The actual value of the regulating parameter is continuously determined during operation of the plant and the amplification factor of th... | 07/01/2008 |
| 7321882 | Method for supervised teaching of a recurrent artificial neural network A method for the supervised teaching of a recurrent neutral network (RNN) is disclosed. A typical embodiment of the method utilizes a large (50 units or more), randomly initialized RNN with a globally stable dynamics. During the training period, the output units of ... | 01/22/2008 |
| 7319943 | Optimum design method, and apparatus, and program for the same In an optimum design method comprising a first solution determining step of solving an optimization problem of a first evaluation function for a state variable vector with a design variable vector being as a parameter, and a second solution determining step of solvi... | 01/15/2008 |
| 7286670 | Method and apparatus for chaotic opportunistic lossless compression of data The present invention is a compression method for compressing digital data. The data is strings of digital values, which can be broken down to a series of 1's and 0's. The present inventive method uses a chaotic system to compress the data. The first step in the inv... | 10/23/2007 |
| 7277764 | Adaptive output feedback apparatuses and methods capable of controlling a non-minimum phase system The invention comprises apparatuses and methods for providing the capability to stabilize and control a non-minimum phase, nonlinear plant with unmodeled dynamics and/or parametric uncertainty through the use of adaptive output feedback. A disclosed apparatus can co... | 10/02/2007 |
| 7269731 | Message authorization system and method A system and method for authorizing electronic messages is provided. One embodiment of the system includes message receiving logic that determines whether a received message comes from an authorized sender based on a pre-assigned token. In another embodiment, a mess... | 09/11/2007 |
| 7254187 | Narrow band chaotic bi-phase shift keying A system and method for signal transmission and reception by narrow band chaotic bi-phase shift keying includes a forward error correction encoder for receiving input data, a data packetizer in signal communication with the forward error correction encoder, a compre... | 08/07/2007 |
| 7215772 | Method and apparatus for remote digital key generation A method and apparatus that uses the dynamics of chaotic systems for the remote generation of a digital key, for use in any encryption algorithm. After initialization, the dynamics of a chaotic system are allowed to generate the 0 and 1 bits of a key bitstream. An i... | 05/08/2007 |
| 7194317 | Fast plant test for model-based control A method and apparatus for designing perturbation signals to excite a number of input variables of a system, in order to test that system for the purpose of obtaining models for the synthesis of a model-based controller. The method begins with providing input parame... | 03/20/2007 |
| 7188022 | Controller A controller which is capable of improving the resolution and accuracy of control even when controlling a plant including a control region in which nonlinearities are temporarily very strongly exhibited and a control region in which the nonlinearities are hardly exh... | 03/06/2007 |
| 7181330 | Control apparatus A control apparatus is provided for ensuring a high-level control resolution and a high control accuracy even when a plant exhibits strong and varying non-linear characteristics with a varying sensitivity of a control amount to a control input. The control apparatus... | 02/20/2007 |
| 7154326 | Dither amplitude correction for constant current drivers In satisfying the above need, as well as overcoming the enumerated drawbacks and other limitations of the related art, the present invention provides an improved switched driver circuit. As disclosed above, there is a need to compensate for the high impedance load c... | 12/26/2006 |
| 7142617 | Narrow band chaotic frequency shift keying A system and method for signal transmission and reception by narrow band chaotic frequency shift keying includes a forward error correction encoder for receiving input data, a data packetizer in signal communication with the forward error correction encoder, a compr... | 11/28/2006 |
| 7139620 | Prediction method and apparatus of a processing result In a method and apparatus for predicting process results of objects being processed in a processing chamber of a processing apparatus, operation data and process result data obtained at the time of processing each of the objects are collected and a multivariate anal... | 11/21/2006 |
| 7139643 | Control device with servocontrol loop, particularly an electro-hydraulic flight control actuator A control device includes a main servocontrol loop having a servocontrolled system, and a compensation device on the input side of the control device. The control device includes an internal loop that receives a first signal derived from the main servocontrol loop a... | 11/21/2006 |
| 7099822 | System and method for noise reduction having first and second adaptive filters responsive to a stored vector A system for microphone noise reduction includes first and second filter portions and a control processor adapted to adapt the first and second filter portions in response to a one of a plurality of stored vectors. Each stored vector is representative of acoustic tr... | 08/29/2006 |
| 7099720 | Method for identifying a control path of a controlled system A method for identifying a control path of a controlled system, and more particularly to a method for identifying a control path in the presence of deterministic perturbations is described. At least one deterministic perturbation correcting signal is determined in a... | 08/29/2006 |
| 7085679 | User interface adapted for performing a remote inspection of a facility A method and apparatus are disclosed for performing an evaluation of the quality of performance of a service involving a person at a remote facility. The method comprises providing a user interface; viewing, on the user interface, a moving video representative of a ... | 08/01/2006 |
| 7085642 | Method and system for correcting sensor offsets A control system (18) for an automotive vehicle (19) having a vehicle body includes a cluster (16) of vehicle dynamic sensors (27, 28, 30, 31), the output signals from the sensors (Yaw Rate Sensor, Roll Rate Sensor, Longitudinal Accelerat... | 08/01/2006 |
| 7062334 | Positioning control method, positioning control device, and electronic component mounting apparatus using same There are provided a positioning control method and a positioning control device, which enables high speed positioning with low power consumption without repeating two or more acceleration and deceleration operations during travel from an original position to a targ... | 06/13/2006 |
| 7039471 | Method and device for calculating the steady-state time point of a controller A device for calculating the steady state behavior of a controller includes an amount generating unit for generating the amount of deviation of the regulator, a first threshold value calculation unit that detects whether the amount of deviation of the regulator has ... | 05/02/2006 |
| 7031890 | Method and apparatus for estimating state parameter in nonlinear discrete time system A method and apparatus for estimating a state parameter in a nonlinear discrete time system are provided. The method for estimating a state parameter has the steps of (a) predicting a state parameter at a current time using an estimated state parameter at a previous... | 04/18/2006 |
| 7027953 | Method and system for diagnostics and prognostics of a mechanical system A vibrational analysis system diagnosis the health of a mechanical system by reference to vibration signature data from multiple domains. Features are extracted from signature data by reference to pointer locations. The features provide an indication of signature de... | 04/11/2006 |
| 7024253 | Auto-tuning controller using loop-shaping A method and apparatus for automatically adjusting the gains of a feedback controller while the process continues to run and the controller continues to operate and control the process is disclosed. A desired closed-loop control bandwidth and a target loop transfer ... | 04/04/2006 |
| 6980869 | System and method for user controllable PID autotuning and associated graphical user interface A system and method for user configuration of an autotuning algorithm for a PID controller. User input is received via a Graphical User Interface (GUI) indicating a desired characteristic of a PID controller, such as stiffness or response time. The system is excited... | 12/27/2005 |
| 6961636 | Method and apparatus for dynamically monitoring controller tuning parameters A method includes processing a plurality of workpieces in accordance with an operating recipe. Metrology data associated with the processing is collected. A control model including at least one tuning parameter having a default value is provided. A plurality of pert... | 11/01/2005 |
| 6922596 | Efficient adaptive feedforward periodic disturbance compensation A system and method is given for minimizing periodic disturbances in electronic systems. Given the input-output characteristics of the system, the present method identifies and cancels the periodic disturbance. The periodic disturbance parameters are identified thro... | 07/26/2005 |
| 6871162 | Non-iterative method for a fully-coupled thermomechanical analysis of a tire and estimating effects of compound changes on tire temperature distribution using the deformation index A simple method of handling thermomechanical coupling for temperature computation in a rolling tire. First, the sensitivity of the tire elastic response to changes in material stiffness is characterized using the “deformation index”. Then, using a commercial fin... | 03/22/2005 |
| 6826521 | System and methodology and adaptive, linear model predictive control based on rigorous, nonlinear process model A methodology for process modeling and control and the software system implementation of this methodology, which includes a rigorous, nonlinear process simulation model, the generation of appropriate linear models derived from the rigorous model, and an adaptive, li... | 11/30/2004 |
| 6826449 | Method for producing natural motions A method to produce natural motions, or self-motion, of animate or inanimate bodies or their parts by the application of pulses at two or more locations on the surface, or inside, of the bodies or their parts. Here, energy is converted into motion in one step. Turn ... | 11/30/2004 |
| 6819964 | Automated closed loop step testing of process units A multivariable process controller controls a chemical, polymer or other physical process. Slow tuning and over-conservative controlled variable values are employed during step testing. While all controlled process variables are within safe limits, only one manipula... | 11/16/2004 |
| 6763271 | Tracking sustained chaos A control method and system are provided to sustain chaos in a nonlinear dynamic system. A sustained transient that is tracked as a system parameter is substantially varied thereby allowing sustained chaotic transients to exist far away from the crisis parameter val... | 07/13/2004 |
| 6650947 | Multi-variable control loop assessment A multivariable analysis tool is provided wherein an orthogonal decomposition method such as a Partial Least Squares algorithm is applied to a disturbance model, which relates the known loop disturbances to the loop model residue. The tool according to th... | 11/18/2003 |
| 6625502 | Automatic speed loop gain adjustment method and apparatus for a feedback control system Automatic speed loop gain adjustment of a feedback control system begins by setting up a phase margin range and a gain margin range. A speed open loop condition is provided by separating a speed command value from a speed feedback value. White noise is in... | 09/23/2003 |
| 6615110 | Controlling method and apparatus for positioning a robot A controlling method and apparatus for positioning a robot that can output an optimal speed instruction for controlling residual vibration after completion of a moving operation, achieve reduction in tact time for the moving operation, and shorten the len... | 09/02/2003 |
