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Class 700/280 - Vibration or acoustic noise control


Subclass of Class 700 - Data processing: generic control systems or specific applications
Definition: Subject matter comprising means for canceling undesired
No. of applications: 97
Last issue date: 05/24/2012


1      
Application No.Application TitleIssue Date
20120127449Controller, Lithographic Apparatus, Method of Controlling the Position of an Object and Device Manufacturing Method
A controller is provided that controls an actuator system having a plurality of actuators arranged to act on an object. The controller uses a gain balancing matrix to convert a first control signal, representing a set of forces desired to be provided to the centre of gr...
05/24/2012
20120105820VIBRATION CONTROL APPARATUS, LITHOGRAPHY APPARATUS, AND METHOD OF MANUFACTURING ARTICLE
A vibration control apparatus includes a first spring mechanism to support a first object as part of a first system. To control vibration of the first object, a first actuator applies a force to the first object via a command value generated by a first computing based o...
05/03/2012
20120004777System and Method for Reducing Lateral Vibration in Elevator Systems
A system and method reduce lateral movement of a car in an elevator system by detecting vibration of the car as a vibration signal. A damping coefficient for a feedback signal is determined according to the vibration signal and a state of the elevator system. A semi-act...
01/05/2012
20110320046Drive method for starting and operating a resonant scanning MEMS device at its resonant frequency
The resonance frequency of a forced torsionally oscillating mirror MEMS device can be controlled in the presence of perturbations by means of a closed loop feedback device and method of using it. The method is implemented through a simple algorithm, implemented in eithe...
12/29/2011
20110295431TIME DOMAIN VIBRATION REDUCTION AND CONTROL
A vibration control system includes a mechanical system which generates vibration; a sensor configured to measure the vibration and generate a vibration signal thereof, and a processor configured: (a) receive a vibration signal from a sensor in a mechanical system; (b) ...
12/01/2011
20110259994HELICOPTER VIBRATION CONTROL SYSTEM AND ROTATING ASSEMBLY ROTARY FORCES GENERATORS FOR CANCELING VIBRATIONS
A rotary blade rotating hub mounted rotating assembly vibration control system (20) including a first imbalance mass concentration rotor (28), a second imbalance mass concentration rotor (44), a third imbalance mass concentration rotor (38′...
10/27/2011
20110245980METHODS AND APPARATUS FOR REDUCING STICK-SLIP
A method and apparatus for estimating the instantaneous rotational speed of a bottom hole assembly at the lower end of a drill string. In one embodiment, a method includes driving the drill string by a drilling mechanism at the upper end of the drill string. A fundament...
10/06/2011
20110208361MOTION CONTROL SYSTEM WITH DIGITAL PROCESSING LINK
A digital processing link for a vibration control system collects sensor signals at a transfer station and combines the sensor signals into a collective signal that is transmitted under a digital communications protocol to a base station. The sensor signals are separate...
08/25/2011
20110153092METHOD OF AND APPARATUS FOR COMPENSATION OF OSCILLATION EFFECTS IN THE EVENT OF MAINS ASYMMETRY IN A DOUBLE-FED ASYNCHRONOUS MACHINE
In a method for the compensation of rotor torque oscillations upon the occurrence of mains asymmetries in relation to a double-fed asynchronous machine (1) it is provided that at least one respective currently prevailing machine parameter is measured and/or deriv...
06/23/2011
20110133049Vibration control of an optical table by disturbance response decoupling
This invention discloses an optical table and the vibration control method thereof. Using disturbance response decomposing techniques, a double-layer structure is applied to independently control the ground and load disturbances. This invention can simplify the vibratio...
06/09/2011
20110125331OPERATION MONITORING SYSTEM FOR PROCESSING APPARATUS
In a processing apparatus having: moveable parts disposed to form a predetermined processing environment within a processing chamber in which a predetermined processing is performed on an object to be processed; and a control means for controlling the operation of each ...
05/26/2011
20110125330Interactive Patient System
The present invention provides an interactive patient system comprising: apparatus; sensing means associated with the apparatus, the sensing means adapted to send, receive or identify a location signal; presence identification means associated with a region of a patient...
05/26/2011
20110066292VIBRATION CONTROL DEVICE AND VEHICLE
[Object] To predetermine a target vibration level and keep vibration generated at a position at which vibration is to be controlled equal to or smaller than a target vibration level.

[Solving Means] A frequency detection means for detecting...

03/17/2011
20110060469METHODS TO INCREASE FORCE AND CHANGE VIBRATORY SEPARATOR MOTION
A vibratory separator including a frame, a basket disposed on the frame, and a motor configured to impart a vibratory motion to the basket. Additionally, the vibratory separator includes an adjustable speed drive operatively coupled to the motor to control a vibratory m...
03/10/2011
20110046795DRIVE CONTROL METHOD, DRIVE CONTROL APPARATUS, STAGE CONTROL METHOD, STAGE CONTROL APPARATUS, EXPOSURE METHOD, EXPOSURE APPARATUS AND MEASURING APPARATUS
A drive control method of controlling an object which can move at least in a first direction and a second direction different from the first direction is provided. Here, a force applied to the object is controlled on the basis of a driving signal for driving a first act...
02/24/2011
20110046794Multi-Channel Active Control System and Methods for the Reduction of Tonal Noise from an Axial Fan
A method of optimizing placement of a control source relative to a noise source includes establishing a first pool of constructive chromosomes, each constructive chromosome defining a potential spatial position for the control source in an acoustic space and each constr...
02/24/2011
20110040414METHODS FOR CONTROLLING A WIND TURBINE CONNECTED TO THE UTILITY GRID, WIND TURBINE AND WIND PARK
Methods for controlling a wind turbine connected to the utility grid by detecting status of the utility grid, and controlling one or more rotor blades and/or emitted power to the grid in returning to the operational wind turbine settings of normal grid mode, as well as ...
02/17/2011
20110015790CONTROL SYSTEM, OSCILLATION CONTROL DEVICE, AND CONTROL SIGNAL GENERATION METHOD
There is proposed a control system and the like that can realize a CPG (Central Pattern Generator) network having high controllability. A control system (CPG network) includes a plurality of oscillation control devices (CPG) and one target signal generating device (rhyt...
01/20/2011
20110010015METHOD FOR THE NOISE-REDUCING CONTROL OF A HEATING, VENTILATING AND/OR AIR CONDITIONING SYSTEM OF A MOTOR VEHICLE
A method is provided for controlling a system (i.e., a heating, ventilating and/or air-conditioning of a motor vehicle. The control unit generates a control signal that regulates the system given a deviation of the actual value from a prescribed desired value by a thres...
01/13/2011
20110004343POSITION CONTROL METHOD AND ROBOT
A position control method for controlling a position of a movable portion, includes: performing control of allowing the movable portion to approach a predetermined position by moving the movable portion; and performing control of moving the movable portion to the predet...
01/06/2011
20100286832METHOD FOR OPERATING A MECHANICAL SYSTEM, PARTICULARLY A PROPORTIONING VALVE
A mechanical system has a component, which is movable under friction. An oscillating micromotion (dither) is impressed upon the component, which, if necessary, is added to a non-oscillating base motion of the component. It is provided that the micromotion (without the b...
11/11/2010
20100268388Method of Controlling A Surgical System Based on Irrigation Flow
A surgical system that is able to sense the onset of an occlusion or other surgical event as well as the instant an occlusion breaks. To help avoid overheating of the tip, the system determines a temperature of an eye using irrigation flow rate and reduces the power to ...
10/21/2010
20100268387DEVICE FOR A MOVING OBJECT'S VIBRATION DAMPING
This invention concerns a device for vibration damping of an object (1) moving along a trajectory arranged on a frame (7), whereas the object (1) involves spaces filled-in with magnetorheologic fluid which moves towards the object (1) and the...
10/21/2010
20100262300ACTIVE VIBRATION SUPPRESSION VIA POWER MINIMIZATION
A vibration suppressor system includes a control system operable to control power from a power system to an actuator system in response to a minimal actuation power algorithm. The minimal actuation power algorithm employs a real electric power consumption of the actuato...
10/14/2010
20100262289DEVICE UTILIZING A PID CONTROLLER,CONTROL METHOD THEREOF, AND ROBOT UTILIZING THE CONTROLLER
A control method utilizing a PID controller includes detecting the position of an object and obtaining the position deviation by comparison with a predetermined position value, detecting the vibration of the object and obtaining a vibration value, adjusting the control ...
10/14/2010
20100211225Combined motion sensor for use in feedback control systems for vibration isolation
The present invention relates to a method for controlling a vibration isolation system, and an active vibration isolation system for vibration-isolated support of lithographic devices, wafer handling systems, and/or scanning microscopes. For this purpose the following a...
08/19/2010
20100204881DAMPING APPARATUS FOR REDUCING VIBRATION OF AUTOMOBILE BODY
A damping apparatus for an automobile is provided, capable of ensuring a high level of reliability while obtaining excellent damping effect with simple configuration. The damping apparatus for an automobile that reduces vibrations of an automobile body may include an ac...
08/12/2010
20100191380UNBALANCE CORRECTION DEVICE OF HIGH SPEED ROTARY APPARATUS
An unbalance correction device of a high speed rotary apparatus which can prevent the lowering of productivity in the production line of a high speed rotary apparatus while reducing variation in the posture of a workpiece supported by a jig and suppressing vibration of ...
07/29/2010
20100163306Modeling Vibration Effects Introduced By Mud Motor
Torsional, axial and lateral vibrations introduced when a mud motor is used with a drilling tool to drill a borehole are calculated using a model. The model includes different computational modules for each of three distinct motor sections: power, transmission and beari...
07/01/2010
20100154307DAMPING ASSEMBLY FOR REDUCING VIBRATIONS IN A LATCH FOR A VEHICLE DOOR AND A METHOD
A damping assembly is disposed within a housing of a latch assembly to slow rotation of a forkbolt as the forkbolt rotates between an over-travel position and a latched position within the housing. The damping assembly includes a first passage and a second passage that ...
06/24/2010
20100131114ACTIVE TUNED VIBRATION ABSORBER
An active tuned vibration absorber (100) is disclosed for reducing vibrations in a structure, the vibration absorber comprising: a mount (104) for attachment to the structure; a moveable mass (106); a spring arrangement (108) connected betwee...
05/27/2010
20100114010VACUUM SENSE CONTROL FOR PHACO PULSE SHAPING
A method and apparatus for precisely controlling particle movement relative to a phacoemulsification needle tip is provided. The design monitors actual vacuum present and calculates a pulse shape amplitude waveform proportional to the amount of measured vacuum. An incre...
05/06/2010
20100106335DUAL-TUNED VIBRATION DAMPER AND METHOD FOR DAMPING VIBRATIONS IN A POWER TRANSMISSION SYSTEM USING A DUAL-TUNED VIBRATION DAMPER
A vibration damper includes a hub, a first mass, a first resilient coupling, a second mass, and a second resilient coupling. The first mass is disposed concentrically about the hub. The first resilient coupling resiliently couples the first mass to the hub. The first re...
04/29/2010
20100106336ELECTRIC TOOTHBRUSH AND METHOD FOR CONTROLLING THEREOF
An electric toothbrush is disclosed. The electric toothbrush according to some example embodiments includes a bristle-vibrating unit that vibrates toothbrush bristles to clean a side of teeth in contact with the toothbrush bristles, a bristle direction-sensing unit dete...
04/29/2010
20100095835MOTION CONTROL OF WORK VEHICLE
A method for controlling a boom assembly includes providing a boom assembly having an end effortor. The boom assembly includes an actuator in fluid communication with a flow control valve. A desired coordinate of the end effector of the boom assembly is converted from C...
04/22/2010
20100082165Torsional Oscillation Damper
A torsional vibration damper (1) comprising two elements (4, 5) which are rotatable relative to one another making use of at least one coupling part (3) which is arranged axially displaceable in a housing (2), in which the housing (2) ...
04/01/2010
20100082164AUTO-CONFIGURING CONDITION MONITORING SYSTEM AND METHOD
In one embodiment, the disclosed method includes receiving a user selection of a machine system type from a plurality of machine system types, where the system types corresponding to specific machine component combination. The method also includes configuring alarms bas...
04/01/2010
20100070094OPERATING METHOD FOR A MACHINE WHICH IS DRIVEN USING A DRIVE, WITH STATE IDENTIFICATION BY MEANS OF FREQUENCY ANALYSIS
A machine having a drive that directly or indirectly excites vibrations in the machine over a frequency range when the drive is connected to the power supply. A sensor detects a time-dependent signal that is characteristic of the excited vibrations. The time-dependent s...
03/18/2010
20100060226MOTOR CONTROL SYSTEM
A motor control system suppresses vibration of a machine base and achieves high-speed positioning without using a special sensor but using a model control system. A first feedback section outputs a first feedback command generated based on model machine base position in...
03/11/2010
20100060220VIBRATION ISOLATION CONTROL SYSTEM
A computing unit simulates an ideal operation of a vibration excitation actuator by using at least a model operation parameter and the vibration-excitation movable mass data and calculates a parameter corresponding to acceleration/deceleration thrust for moving the vibr...
03/11/2010
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