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7622884 |
Methods for managing electrical power
Certain exemplary embodiments comprise a system comprising a plurality of Active Front End units adapted to be electrically coupled to a direct current (DC) bus. Each of the plurality of Active...
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7592769 |
Electric cylinder
There are provided two kinds of nuts of a ball thread nut 20 and a non-ball thread nut 30 which is rotatable in synchronization with the ball thread nut 20 and in which a thread groove in...
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7554283 |
Non-reaction torque drive
Disclosed is a non-reaction torque drive which can be called Reaction Free Drive or suspended support comprising: a Rotor, a Stator, two gyroscopes which are placed in side two frames, two high...
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7531981 |
Controller for servomotor
A controller for a servomotor capable of improving accuracy of positioning and quality of a machined surface by switching modes of correction of a position command or the like, and reducing a shock...
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7514895 |
Method and device for synchronously controlling multiple printing presses or multiple units in printing press
A method and a device for synchronously controlling multiple printing presses or multiple units in a printing press can reduce power consumption and improve durability of motors and motor bearings....
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7503366 |
Electronic component feeding device
The invention provides a component feeding device where heat generation of a drive circuit is minimized and a printed board mounted with this drive circuit is miniaturized by forming an inexpensive...
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7474073 |
Method and system for multiple servo motor control using a single control loop
The solution involves the use of two or more motors to drive a common mechanism. The single control loop includes a position sensing device coupled to only a first of the plurality of servo motors...
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7471057 |
Servo-control system for an unbalanced rotor vibrator
The invention applies to a vibrator comprising two pairs (A, B) of unbalanced rotors ( 10 to 13 ) driven in synchronous rotation by a first motor, and a second motor arranged to drive a phase...
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7463003 |
Motor control system for controlling a plurality of motors
A motor control system for controlling a plurality of motors for moving an object in respectively different axial directions that includes a plurality of target devices, each target device...
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7463002 |
Robot controller system
A robot controller system includes a robot including a first actuator and a second actuator, a main controller for driving the first actuator, and a sub-controller for driving the second actuator....
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7461439 |
Method for detecting malfunction in clamping and machine tool
The method for detecting any clamping malfunction of the work within the machine tool which clamps both ends of the work with clamping mechanisms 23, 24 of a pair of headstocks 19, 29, and...
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7456599 |
Position feedback device with prediction
An apparatus for use with an encoder feedback device includes a comparator, a counter, and a prediction unit. The encoder feedback device is coupled to rotate with a rotating load and operable to...
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7429844 |
Servo unit and joint servo for use in a robot system
In a robot servo mechanism, the servo mechanism is installed within a L-shaped housing box to make dimension thereof smaller with smaller dead space thereof. In the servo mechanism, each of first...
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7428846 |
Shaft encoder with anti-backlash gears
An encoder shaft assembly includes a drive shaft having a drive gear, and an array of encoder units each having an encoder shaft and anti-backlash gears which engage the drive gear.
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7388344 |
Multichannel pulse train transmitting apparatus
In the multi-shaft driving apparatus, position command pulse trains for servomotors are generated from a motor controller and supplied to motor drivers for the respective servomotors via a...
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7385370 |
Driving apparatus, exposure apparatus, and device manufacturing method
A driving apparatus for moving an object. The apparatus includes a first actuator which drives the object in X and Y directions, a second actuator which drives a reaction force counter which...
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7375490 |
Methods for managing electrical power
Certain exemplary embodiments comprise a system comprising a plurality of Active Front End units adapted to be electrically coupled to a direct current (DC) bus. Each of the plurality of Active...
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7317293 |
Displacement control system for a vehicle axle
Provided is a motor control circuit in which the circuit structure is not complicated, which has a favorable response to the phase difference signal, and in which the signal variation caused by...
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7307399 |
Systems for managing electrical power
Certain exemplary embodiments comprise a system comprising a plurality of Active Front End units adapted to be electrically coupled to a direct current (DC) bus. Each of the plurality of Active...
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7298111 |
Method and device for controlling a production unit
A method and a device for controlling a production unit in a production installation are specified, controlling referring to the controlling and monitoring of speeds of rotation or angles of...
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7233841 |
Vision system
A vision system and method for calibrating motion of a robot disposed in a processing system is provided. In one embodiment, a vision system for a processing system includes a camera and a...
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7228253 |
Instrument mounting system with dual encoders
The present invention provides a way to measure the position of an instrument that is mounted on an instrument shaft within a clutched mounting system, the instrument shaft being driven through a...
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7196489 |
Rotary shaft control apparatus
The invention aims to suppress or prevent the vibration that can occur due to the intervention of a low-rigidity part between detector and rotating body. An angular acceleration sensor for...
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7187142 |
Motor drive with velocity noise filter
A drive unit for controlling a motor includes a position feedback device and a velocity noise filter. The position feedback device is operable to generate a position signal relating to a position...
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7183739 |
Synchronous control device
There is provided a synchronous control device for driving the same control object with two servomotors. The synchronous control device detects the physical quantity that represents the difference...
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7183735 |
Drive unit for controlling drives in machine tools or production machines
A drive unit for controlling drives of machine tools or production machines includes a signal electronics unit, a startup/diagnostic unit, and an interface between the signal electronics unit and...
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7180261 |
Self-synchronous AC servo system for high-speed serial communication
A self-synchronous AC servo system is used for high-speed serial communication and has multiple axes control. The system includes a computer sending command to master axis drive and slave axis...
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7176648 |
Energy management apparatus and method for injection molding systems
An energy management control apparatus for a molding machine that includes a first electrically-driven prime mover configured to drive at least a first molding machine device, and a second...
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7166981 |
Actuator, motor unit and controller unit
An actuator, which allows a controller to be commonly applied to a plurality of models without requiring complicated setting operation of control parameters, and is superior in cost effectiveness,...
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7145300 |
Multi-axis AC servo control system and method
A multiple axis servo control implements a multi-tasking PWM control unit to provide PWM signals for multiple axes in a single unit. A time slice mechanism provides axis selection signals based on...
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7132815 |
Methods and devices for processing servo control signals
Servo control signals and data content associated with two different devices, such as a hard disc drive magnetic head and a digital video disc laser may both be processed without substantial loss...
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7129668 |
Actuator control unit
An actuator control device includes an electrical control unit for detecting the present positions of output shafts of servo motors, and communicating with control circuits for driving the output...
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7119514 |
Inverter
An inverter has a measuring part that measures an operating time such as the time interval from when a command to start a specified operation by an associated system until a signal indicating the...
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7102316 |
Mechanical press
In a press having a plunger supported so as to be movable linearly back and forth by drive means which include at least one servomotor in combination with a rotatably supported inertia structure...
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7085622 |
Vision system
Generally a method and apparatus for viewing images within a processing system is provided. In one embodiment, an apparatus includes a plate having a camera, transmitter and battery coupled...
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7061202 |
Automobile servomotor controller
An automobile servomotor controller includes a master control unit having a master control circuit for transmitting a designation signal and a slave unit having a motor and a control circuit which...
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7061200 |
Legged mobile robot and actuator device applicable to join shaft of the robot
In order to suitably intercommunicate an output signal from a sensor arranged outside an actuator with a higher-order control system, an output from a contact sensor at an arbitrary position on a...
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7049780 |
Door lock transmission element
An auto-adjusting electric rear-view mirror includes at least two driving mechanisms for driving the rear-view mirror to deflect. The driving mechanisms are respectively coupled to servo control...
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7038421 |
Method and system for multiple servo motor control
A system for control of a plurality of motors comprising: an inverter including at least three legs, with each leg including two series switching devices configured to receive a command from a...
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7030586 |
Method for co-ordinating and synchronizing the movement of servo-assisted axes
The invention regards a method for co-ordinating and synchronizing the movement of servo-assisted axes in machines and apparatuses which execute various industrial applications. The method in...
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7026784 |
Inverter
An inverter has a measuring part that measures an operating time such as the time interval from when a command to start a specified operation by an associated system until a signal indicating the...
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7012396 |
Increased digital spindle motor control resolution through dither
A motor controller provides pulse width modulated drive signals to a motor. A digital demand code for controlling motor speed is input to the motor controller. A dither generator generates a...
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6969961 |
Method for controlling a rotation speed of a slave drive, a corresponding controller and a corresponding machine
A method for controlling the rotation speed of a slave drive is described, where a reference rotation speed and a reference position is provided to a controller. The controller determines an...
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6943521 |
Motor drive, motor drive control method, and component attaching device
In a motor drive device having a plurality of driver units for driving motors and a command generator for giving a command to the driver units which are connected in serial communication, there is...
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6933698 |
Method of driving a servo motor with a built-in drive circuit
Disclosed is a method of driving a servo motor with a built-in drive circuit in which a common rectifying circuit is provided on a distribution board to which a plurality of the servo motors with...
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6891341 |
Aligning apparatus in semiconductor device test handler
An aligning apparatus for a semiconductor device test handler is provided which reduces semiconductor device loading and unloading time. An exchange unit of the handler includes a pair of aligners...
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6888334 |
Synchronization control method and synchronization control device
A reference variable having a linear relationship with the angular position of a master axis is set, and a correspondence between this reference variable and the displacement of a slave axis is...
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6859007 |
Servo motor drive control device
Learning control is performed when carrying out processing by repeating instructions in a pattern cycle. Time/position converting means determines a positional deviation for a prescribed position...
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6836315 |
Lithographic apparatus and device manufacturing method
A method of providing pitch torque compensation for planar motors in which pitch torque is not inherently provided includes calculating and summing a given set of forces ideally required to be...
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6825634 |
System and method for a scalable motion controller for controlling a plurality of servo motors
A motion control system comprises a motion unit having a motor connected to an encoder and an amplifier. The motion control system further comprises a scalable motion controller connected to the...
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