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7636605 |
Magnetic disk device and head-position control method
A feedback controller performs a feedback control based on an error between a target position and an actual position of a head. A model controller obtains a control command, a model position to be...
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7634323 |
Optimization-based modular control system
A system for controlling a plant process wherein the plant is over-actuated with N+1 actuators and provides N performance variables is disclosed. The system includes an outer-loop controller...
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7620460 |
Process control with unreliable communications
Disclosed are methods and devices for controlling a process with a control signal. Iterations of a control routine are implemented to generate the control signal, and when an indication of a...
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7620462 |
Robust digital controller and its designing device
A robust digital controller is equipped with a high degree of approximation and is able to incorporate a novel two-degree-of-freedom robust digital control system without substantially considering...
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7603187 |
Adapative control device, image forming apparatus, and recording medium
An adaptive control device includes an identifier and a feedforward controller. The identifier estimates an unknown coefficient in a discrete-time transfer function model of a controlled object to...
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7596420 |
Device manufacturing method and computer program product
A method is provided wherein a lithographic projection apparatus is used to print a series of test patterns on a test substrate to measure printed critical dimension as function of exposure dose...
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7587252 |
Non-periodic control communications in wireless and other process control systems
Disclosed is a controller having a processor and a control module adapted for periodic execution by the processor and configured to be responsive to a process variable to generate a control signal...
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7576832 |
Lithographic apparatus and device manufacturing method
A lithographic apparatus includes a movable object and a control system to control the position of the movable object. The control system includes a position measurement system configured to...
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7558634 |
Controller and method of controlling an apparatus using predictive filters
In the field of electronic or computerized control apparatuses, known methods of compensating for disturbance signals rely on less than ideal analytical or empirical models. There is provided a...
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7546170 |
Easily tuned and robust control algorithm for single or multiple variable systems
A controller and associated methods. A controller has an input for a controlled variable; a proportional term; an integral term; and a predictive term. The predictive term has an error-predictive...
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7525434 |
RF systems and methods for tracking and singulating tagged items
A method for identifying an approximate location of a radio frequency tag includes scanning zones of an area in an active mode at a first power level for identifying the zone in which the tag is...
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7526346 |
Nonlinear thermal control of a PEM fuel cell stack
A temperature control scheme for a fuel cell stack thermal sub-system in a fuel cell system that uses a non-linear thermal model and disturbance rejection to provide an optimum stack temperature....
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7519439 |
Efficient digital processor for feedback control applications
A digital processor ( 2, 102 ) for use in a digital controller ( 10 ) is disclosed. The digital processor ( 2, 102 ) includes a coefficient product memory ( 22 ) that stores previously calculated...
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7486273 |
Communications in a system comprising a computer and a haptic interface device
The present invention comprises methods and apparatuses that can provide reliable communications between a computer and a haptic interface device. The methods and apparatuses can provide...
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7477960 |
Fault detection and classification (FDC) using a run-to-run controller
A method for implementing FDC in an APC system including receiving an FDC model from memory; providing the FDC model to a process model calculation engine; computing a vector of predicted dependent...
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7477950 |
Method and system for controlling a network of water appliances
An appliance control system is described for controlling a plurality of appliances. The system includes a control station located remotely from the appliances and having a control unit for...
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7463938 |
Control calculation device
When there exists an error between a model considered in feed-forward and an actual device, it is configured so as to enable the application of control having feed-forward such as predictive...
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7457673 |
Process for rapidly controlling a process variable without overshoot using a time domain polynomial feedback controller
A method for controlling a process variable as it approaches a predetermined value (setpoint) so that the setpoint is not exceeded. The method employs a time domain polynomial equation in a...
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7451004 |
On-line adaptive model predictive control in a process control system
A method of creating and using an adaptive DMC type or other MPC controller includes using a model switching technique to periodically determine a process model, such as a parameterized process...
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7440807 |
Control system provided with virtual power monitor and thereby provided with function of evaluating and analyzing stability of object to be controlled
A system configuration can evaluate the stability of an output from a user's control system including all effects of unknown dynamic characteristics and disturbances and can guarantee the stability...
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7432681 |
Scanner system
A scanner system includes a servo control unit. A rotation angle of a rotating shaft supporting a mirror is detected, and an error of the detected value with respect to a commanded value is...
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7421303 |
Parallel LCP solver and system incorporating same
A Linear Complementarity Problem (LCP) solver is characterized by multiple execution units operating in parallel to implement a competent computational method adapted to resolve physics-based LCPs...
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7415311 |
System and method for adaptive control of uncertain nonlinear processes
A computer system for controlling a nonlinear physical process. The computer system comprises a linear controller and a neural network. The linear controller receives a command signal for control...
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7400933 |
SISO model predictive controller
A method of predictive control for a single input, single output (SISO) system, including modeling the SISO system with model factors, detecting output from the SISO system, estimating a filtered...
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7386355 |
Close loop control system and method of the same
A close loop control system includes a controlled system having a controlled variable and a control variable, a first detecting unit, a second detecting unit, and a feedback control unit. The first...
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7366575 |
Wafer polishing control
Methods of controlling polishing of wafers are disclosed. In one aspect, a method may include measuring one or more pre-polish thicknesses of one or more layers of a wafer. The one or more layers...
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7359762 |
Measurement and alignment device including a display system
A graphical user interface communicatively coupled with a non-contact measurement and alignment device enables user control over and display of the readings from the non-contact measurement and...
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7349745 |
Lead-lag input filter arrangement with adjustable initial conditions for electro-pneumatic control loops
Systems and methods for urging a valve plug off a seat of a control valve and toward a set point in the absence of significant delay. Adjustable, user-selected input parameters to the input of a...
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7346403 |
Pid parameter adjustment device
A PID parameter adjustment device includes: a model storage section ( 1 ) for storing an equation model to be controlled; a PID controller storage section ( 2 ) for storing a control algorithm; a...
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7289858 |
Lithographic motion control system and method
A lithographic apparatus comprising a control system, such as a motion control system, is presented. The control system includes an actuator for moving a moveable part, a feed-forward path from a...
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7277777 |
Method and system for real time reporting of boiler adjustment using emission sensor data mapping
A method to adjust a boiler having a flue gas duct including: sensing flue gas emissions in the gas duct with a plurality of emission sensors arranged in an array; generating a multidimensional...
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7231266 |
Digital control device and program
A digital control device for tracking a sine wave according to the present invention has a compensator, a control object and a feedback gain. An input into the compensator is a signal obtained by...
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7206627 |
System and method for intra-operative haptic planning of a medical procedure
In accordance with an embodiment of the present invention, attractive haptic objects are associated with a target region for performing a medical procedure and repulsive haptic objects are...
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7206626 |
System and method for haptic sculpting of physical objects
In accordance with an embodiment of the present invention, a method for haptic sculpting of a physical object using a haptic device comprises defining a haptic object for aiding in the sculpting of...
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7194318 |
Integrated optimization and control using modular model predictive controller
A modular formulation of model predictive controller is proposed by this invention ( 400 ). The modular formulation offers a robust model predictive controller with unified method of tuning....
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7184847 |
Method and system for controlling a process in a plant
A method and system are disclosed for controlling a process by establishing a control factor for a proportional-integral-derivative (PID) controller used to control a parameter of a process...
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7181644 |
Method for synchronizing data utilized in redundant, closed loop control systems
A method for synchronizing data utilized in a redundant, closed-loop feedback control system is disclosed. In an exemplary embodiment, the method includes configuring a plurality of control nodes...
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7157878 |
Transient compensation voltage estimation for feedforward sinusoidal brushless motor control
A method for controlling a voltage mode controlled electric machine comprising: receiving a torque value representative of a desired torque; obtaining a speed value indicative of a rotational...
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7154472 |
Force-feedback input device
A force-feedback input device includes an operation section to be operated by an operator; a position detection section for detecting the operating state of the operation section; a force-feedback...
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7152052 |
Apparatus and method of controlling single-input-multi-output systems
An apparatus and method is disclosed for automatically controlling single-input-multi-output (SIMO) systems or processes. The control output signals of a plurality of single-input-single-output...
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7149590 |
Kiln control and upset recovery using a model predictive control in series with forward chaining
A method for controlling a non-linear process includes the steps of first providing a controller that is operable to receive inputs representing measured variables of the process and predicting on...
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7136710 |
Ergonomic man-machine interface incorporating adaptive pattern recognition based control system
An adaptive interface for a programmable system, for predicting a desired user function, based on user history, as well as machine internal status and context. The apparatus receives an input from...
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7128812 |
Apparatus and method for determining the level in a coke drum
A foam level in a delayed coking drum is detected by utilizing the varying density of the boiling mass in the coke drum which has larger bubbles and is less dense at the top and smaller bubbles and...
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7123973 |
Partitioned control system and method
A method for controlling a controlled process in response to an input signal and a disturbance signal includes modeling the controlled process in a process model; controlling the process model by a...
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7123971 |
Non-linear model with disturbance rejection
Non-linear model with disturbance rejection. A method for training a non linear model for predicting an output parameter of a system is disclosed that operates in an environment having associated...
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7113834 |
State based adaptive feedback feedforward PID controller
A state based adaptive PID controller includes a model set component including a plurality of process models, each process model including a plurality of parameters. An error generator generates a...
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7107108 |
Controller and method of controlling an apparatus using predictive filters
In the field of electronic or computerised control apparatuses, known methods of compensating for disturbance signals rely on less than ideal analytical or empirical models. There is provided a...
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7103426 |
Anticipatory high frequency noise compensation in a distributed process control system
A control system includes a measurement device capable of gathering high frequency process parameter data, a modeling routine which uses the high frequency parameter data to develop a model of the...
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7092770 |
Feedback control method and feedback control device
The response process of disturbance recovery control is divided into a follow-up phase, a convergence phase, and a stable phase. A feedback control device includes a first phase switching unit ( 3...
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7069090 |
Systems and methods for providing variable output feedback to a user of a household appliance
An embodiment of the present invention uses an on-board microcontroller of a household appliance to receive signals from a directionless encoder attached to a knob for receiving user input and...
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