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| Number | Title | Issue Date |
| 8160731 | Stabilized platform system A stabilized platform system includes a platform, a chassis subject to external vibration, first and second servomechanisms fixed to the chassis, first support having an end rotatably coupled to the first servomechanism and an other end rotatably coupled to the plat... | 04/17/2012 |
| 8050781 | Systems and methods for ASIC power consumption reduction Embodiments of the present invention are directed to dynamically measuring the speed of a circuit and modifying the operating voltage of the circuit based on the measured speed, in order to minimize the power being used while still ensuring proper operation of the c... | 11/01/2011 |
| 8000817 | Frequency control in closed loop control systems Process controllers, methods, and systems provide for frequency control to account for the effects of periodic disturbances in the feedback signal of closed loop control systems. The frequency components of the feedback signal are determined, including the magnitude... | 08/16/2011 |
| 7467019 | Computation of imbalance in rotatably mounted object in a motion control system A method of computing imbalance in a motion control system is disclosed. The motion control system includes an object mounting mechanism for holding and rotating the object about a first axis; an object positioning mechanism for displacing the object mounting mechan... | 12/16/2008 |
| 7315846 | Method and apparatus for optimizing a system model with gain constraints using a non-linear programming optimizer Method and apparatus for training a system model with gain constraints. A method is disclosed for training a steady-state model, the model having an input and an output and a mapping layer for mapping the input to the output through a stored representation of a syst... | 01/01/2008 |
| 7308322 | Motorized system integrated control and diagnostics using vibration, pressure, temperature, speed, and/or current analysis Systems and methods are disclosed for controlling, diagnosing and prognosing the health of a motorized system. The systems may comprise a diagnostics system, a prognostic system and a controller, wherein the diagnostics system and/or prognostic system employs a neur... | 12/11/2007 |
| 7301297 | Synchronous control device An ‘interval’ in which the synchronization status between the movable axes subject to synchronous control is monitored, an equation between the movable axes in the ‘interval’, and an ‘allowable displacement’ for the positional relationship obtained with ... | 11/27/2007 |
| 7275627 | Active vibration suppression apparatus, control method therefor, and exposure apparatus having active vibration suppression apparatus An active vibration suppression apparatus includes a rotating actuator which is fixed to a vibration suppression target and generates a torque in a rotational direction, an inertial load which is connected to the actuator and moves in the rotational direction relati... | 10/02/2007 |
| 7246022 | Initiation of differential link retraining upon temperature excursion A method includes detecting a change in temperature in an integrated circuit that is coupled to a differential communication link, and responding to the detected change in temperature by initiating a retraining process for the differential communication link. ... | 07/17/2007 |
| 7216006 | Control system for a plant including a slide mode controller A control system for a plant is provided. This control system can control the plant more stably, when the model parameters of the controlled object model which are obtained by modeling the plant, which is a controlled object, are identified and the sliding mode cont... | 05/08/2007 |
| 7208897 | Motion control system for barrier drive A system for operating a barrier system such as a garage door, gate or fence. A DC motor is connected to and operates a barrier drive. A power amplifier is configured to receive power signals from a power supply and to output modulated DC signals to the DC motor. A ... | 04/24/2007 |
| 7202616 | Synchronous control method and device of the same A synchronous control device which is provided with drive motors and a central control unit generating a synchronous reference signal and with which the drive motor is controlled to rotate synchronously with the synchronous reference signal supplied from the central... | 04/10/2007 |
| 7191073 | Bearing anomaly detection and location Novel tracked orders (i.e., tracked orders that are not present in “healthy” machinery) are useful for locating bearing anomalies. Accordingly, a method for locating bearing anomalies in machinery is provided that includes receiving vibration measurements acquir... | 03/13/2007 |
| 7174474 | Distributed autonomous control system for multi-axis motion control A distributed multi-axis motion control system comprises a multicast communications network having several node components. Each of the node components includes a clock and an actuator. The actuators are part of a motor system and a pattern profile table of the moto... | 02/06/2007 |
| 7143301 | System for motion control, method of using the system for motion control, and computer readable instructions for use with the system for motion control A motion control system and method that includes a central controller configured to generate first and second demand control signals to be used to define actuation motion of respective first and second actuators. The central controller is in communication with first... | 11/28/2006 |
| 7137121 | Data-processing circuit and method for switching between application programs without an operating system A data-processing circuit includes first and second cooperating processors where one of the processors context switches between applications without running an operating system. In one implementation, the first processor operates under the control of an operating sy... | 11/14/2006 |
| 7130702 | System and method for control scheduling A system and method for controlling a device such that device operates in a smooth manner. The system may switch between control architectures or vary gain coefficients used in a control loop to control the device. As the architecture or gains are switched, the cont... | 10/31/2006 |
| 7123978 | Method for dynamically targeting a batch process A method for controlling at least one characteristic of a product of an industrial batch process. The method comprising the steps of creating a hierarchical knowledge tree describing the process. Following the creation of a knowledge tree a learning process occurs. ... | 10/17/2006 |
| 7117065 | Method for modifying a stamping die to compensate for springback A method for modifying a stamping die to compensate for springback includes the steps of stamping a first part using a base, or pre-existing die set, and creating a surrogate die having the shape of the first stamped part. These steps are followed by simulated stamp... | 10/03/2006 |
| 7095203 | Numerical controller A numerical controller which, after once stopping a slave axis during superposing control, can easily resume the superposing control. In the superposing control, a motion amount for a master axis and a motion amount for the slave axis are added to a workpiece coordi... | 08/22/2006 |
| 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) which switches to the follow-up phase, a second phase switchin... | 08/15/2006 |
| 7087335 | H-infinity control with integrator compensation for anode pressure control in a fuel cell stack Pressure control in a fuel cell is achieved by using an H-infinity controller coupled in a feedback loop between a reactant feed gas valve and a pressure sensor on gas flows to the membrane electrode assembly of the fuel cell. To maintain pressure balance across the... | 08/08/2006 |
| 7085542 | Portable device including a replaceable cover An apparatus and method utilizing a portable device including an array sensor and a replaceable housing. The apparatus can include a main housing, a first replaceable housing configured to be coupled to the main housing, an array sensor coupled to the main housing, ... | 08/01/2006 |
| 7076311 | Configurable safety system for implementation on industrial system and method of implementing same A configurable control system for operating an industrial system in a reliable, safety-enhanced manner, and method of implementing such a system in any of a variety of particular industrial systems of a given class, are disclosed. The method includes storing, onto a... | 07/11/2006 |
| 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 |
| 7039475 | System and method of adaptive control of processes with varying dynamics The present invention provides a method for controlling nonlinear process control problems. This method involves first utilizing modeling tools to identify variable inputs and controlled variables associated with the process, wherein at least one variable input is a... | 05/02/2006 |
| 7039494 | Controller for machine A controller that eliminates an error caused by acceleration/deceleration control, and controls the velocity of drive axes which is not represented by a rectangular coordinate system such that maximum allowable values of velocity, acceleration, and jerk of the drive... | 05/02/2006 |
| 7010376 | Diagnostic for poorly tuned control loops A method and apparatus to perform an automatic diagnosis for the poor performance of a control loop, and to determine whether or not the malfunctioning is caused principally by a poor adjustment of the controller tuning parameters. The method makes use of the fact t... | 03/07/2006 |
| 6999884 | Bearing anomaly detection and location Novel tracked orders (i.e., tracked orders that are not present in “healthy” machinery) are useful for locating bearing anomalies. Accordingly, a method for locating bearing anomalies in machinery is provided that includes receiving vibration measurements acquir... | 02/14/2006 |
| 6970750 | Model-free adaptation of a process controller An adaptive process controller drives a process variable to be substantially equivalent to a set point and adapts the controller gain, the controller reset, and/or the controller rate, based on model free adaptation. The adaptive controller combines a controller gai... | 11/29/2005 |
| 6937909 | Pattern recognition adaptive controller A pattern recognition adaptive controller configured to dynamically adjust proportional gain and integral time control parameters based upon patterns that characterize the closed-loop response. The pattern recognition adaptive controller receives a sampled signal re... | 08/30/2005 |
| 6928370 | Health monitoring A method for monitoring the health of a system comprises performing at each of a plurality of times the steps of: constructing a condition signature from a plurality of condition indicators including (a) a plurality of vibration measurements acquired from the... | 08/09/2005 |
| 6920378 | Command generation combining input shaping and smooth baseline functions One preferred embodiment of the invention provides systems and methods for controlling a physical system by generating an input to the physical system that does not excite unwanted dynamics. Briefly described, one embodiment of the system among others, can be broadl... | 07/19/2005 |
| 6915173 | Advance failure prediction Failure prediction for complex processes is performed utilizing one or more nonlinear regression models to relate operational variable values measured at two or more times to predicted process metric values and maintenance variable values. ... | 07/05/2005 |
| 6901300 | Adaptation of advanced process control blocks in response to variable process delay An advanced control block that implements multiple-input/multiple-output control, such as model predictive control, within a process control system uses a compensation block or algorithm and a single control model based on a single process model to provide advanced ... | 05/31/2005 |
| 6839637 | Exhaust emission control system for internal combustion engine An exhaust emission control system for an internal combustion engine is disclosed. The system includes a NOx removing device provided in an exhaust system of the engine for removing NOx contained in exhaust gases, and an oxygen concentration sensor provided in the e... | 01/04/2005 |
| 6823221 | Motion control system and method which includes improved pulse placement for smoother operation A motion control system and method are disclosed which provide improved pulse placement for smoother operation of a motion device such as a stepper motor. A placement of pulses may be determined for each of a plurality of time intervals such that the pulses are plac... | 11/23/2004 |
| 6799110 | Engine control system Evacuation operation performance is improved when any abnormality occurs in an electronic throttle control system. When any serious abnormality occurs, a first abnormality storage element (133) operates, a load relay for a power supply circuit (104 | 09/28/2004 |
| 6785587 | Control method and control device for the operation of coupled drive axes with superposed movement components The invention relates to a control method and a control device for the operation of rotationally or linearly driven axes with a position control. This involves determining the difference between the setpoint position value (LS) and actual position value (WI) caused ... | 08/31/2004 |
| 6745088 | Multi-variable matrix process control Computer-implemented system and method for controlling a processing apparatus having at least one independently controlled manipulated variable and at least one controlled variable responsive to the manipulated variable, using a robust multi-variable controller whic... | 06/01/2004 |
