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9041336 Robot having repeatable disturbance compensation algorithm  
A controller for a substrate transport apparatus. The controller includes a first system and a second system for at least partially controlling a movement of a motor of the substrate transport...
9041319 Actuator having an address selector  
A system incorporating an actuator connected to a polarity-insensitive two-wire communications bus. The actuator may have an electromechanical mover, a processor connected to the electromechanical...
9018886 Motor control system which corrects backlash  
A motor control system (10) which includes a difference calculating part (31) which calculates a difference between a first position detection value of a moving part and a second position...
9010723 Electric actuator  
An electric actuator has a motor, an electricity storing body, a switch and a resetting unit. The switch is provided in a supply path of electric power from the electricity storing body to the...
9000706 Actuator control system  
A system comprising an actuator and a controller configured to drive the actuator with a pulse width modulated (PWM) signal. The controller is configured to limit a duty cycle of the PWM signal in...
9000692 Linear electrodynamic-type motor, cryocooler including such a motor and method implementing such a motor  
A linear electrodynamic-type motor, for compressing a fluid circulating in a cryocooler notably using a Stirling cycle, includes a translationally movable induction coil; a power-supply circuit...
8988033 Machine tool  
A machine tool includes a main axis 30 to which a touch probe 17 is attached, a motor 15 that rotationally drives the main axis 30, a rotation angle position detector 16 that detects a rotation...
8989898 Robotic manufacturing system with accurate control  
A robot mechanism for controlling the position of a machine tool in a large-scale manufacturing assembly includes six rotary axes and one linear axis. Secondary feedback systems are included on at...
8975853 Methods and systems for improving positioning accuracy  
A human-operated system comprises a positioning system and an input shaper. The positioning system moves an object from one location to another. The positioning system includes a computing device...
8970141 Resonant actuator using magnetic action for a power toothbrush  
A magnetic actuator system which includes a case (10) and a spindle (22) which extends through the case comprising a magnetizable material such as iron. The actuator further includes a pair of...
8970156 Path display apparatus considering correction data  
A path display apparatus includes a first position command acquiring unit that acquires first position command for motors, a first position feedback acquiring unit that acquires first position...
8963472 Integration of spindle external sense resistor into servo IC with stable resistance control circuit  
An apparatus, comprises three driver FETs coupled at their sources; note-driver circuit; a first sense FET coupled to the sources of the three driver FETs; a current mirror having the first sense...
8963468 Motor control device and electric power steering device  
A motor control device includes an anomaly detection means that detects an anomaly occurring on power feeding paths of respective phases on the basis of first electric current values, second...
8963474 Motor control device  
A motor control device includes: an acceleration/deceleration processing unit that generates a servo command according to an acceleration/deceleration parameter; a servo control unit that controls...
8963473 Method and system for powering and measuring positions of a plurality of DC-motors over a wire interface  
A system comprising a motor controller for providing a plurality of first power signals and a single common second power signal to a motor module comprising a plurality of potentiometers...
8963455 Motor drive control device and operation method thereof  
When a motor drive control device is integrated in a semiconductor integrated circuit having a small chip area, calibration for improving the accuracy of detection of a counter electromotive...
8957620 Motor control apparatus, motor control method, motor system, and computer-readable medium  
A motor control apparatus that controls the rotational angle of a motor (111) which drives a rotating body (112) includes a synchronizing means (200) for generating and outputting an interrupt...
8952645 Drive device comprising a plurality of drives and regulating system for this overall drive  
In the case of speed-regulated high-power drives and with simultaneously high demands on accuracy or dynamics, the object of the invention is to reduce a very high level of complexity of the power...
8946652 Sample positioning apparatus, sample stage, and charged particle beam apparatus  
Provided is a sample positioning technology wherein micro-vibrations of a top table on which a sample is placed are suppressed such that the quality of an image to be observed or the precision of...
8941342 Integrated servo system  
An integrated servo system and a method of controlling a motor is provided. The integrated servo system includes a position detector which determines original position data of a motor and a...
8928270 Electric motor system and motor control method  
An electric motor system includes a brushless direct-current motor, a driver circuit, a position sensor, and a control circuit. The motor has an output shaft for transmitting torque. The driver...
8928267 Motor controller  
To stably control a driving object to approach and contact a pressure object at a low impact, to suppress a vibration generated when the driving object presses the pressure object, and to enable a...
8922144 Method of processing sensor signals for determining motion of a motor shaft  
Methods and systems of processing sensor signals to determine motion of a motor shaft are disclosed. This disclosure relates to the processing of sequences of pulses from a sensor for computing...
8912746 Surgical instrument motor pack latch  
A latch mechanism selectively retains a first assembly to a second assembly. The first and second assemblies are configured for sliding engagement along an engagement axis. The latch mechanism...
8912683 Smart responsive electrical load  
A smart responsive electrical load (10) is operatively connectable to an electricity supply network (20). The smart responsive electrical load (10) comprises an electrical power-consuming device...
8901870 Synchronous control apparatus  
A synchronous control apparatus capable of switching cam curves with ease and without delay is provided. A cam curve storing unit stores a representation of a first cam curve and a representation...
8901872 Motor controller  
There are provided: a plurality of notch filters which are arranged inside a control system for feedback-controlling a moving operation of a moving section of a motor and attenuate signal...
8901871 Robust controller for electro-mechanical actuators employing sliding and second control modes  
An improved technique for controlling an electro-mechanical actuator combines a sliding mode of control with a second mode of control. An error signal is generated based on the difference between...
8896256 Reflection encoder, servo motor, and servo unit  
Reflected light can be effectively utilized by increasing a light receiving area. Incremental light receiving element groups are separated and arranged in the circumferential direction of a...
8896255 Servo controller having function for correcting amount of expansion/contraction of ball screw  
A servo controller, capable of controlling the motion of a movable body with high accuracy, without depending on the position of the movable body which is moved on a ball screw. The servo...
8890460 Servo control device  
A servo control device includes a follow-up control unit that controls a control target that drives a mechanical system by a motor, a command function unit that has input therein a phase signal θ...
8890458 Selectively biased robot mechanism platform for a storage library  
Systems and methods are described for providing selective biasing of a platform in context of one or more modules. While moving in the Z-direction with respect to the modules, the platform travels...
8884763 Threat detection sensor suite  
A sensor suite for a vehicle, the sensor suite comprising a 3D imaging system, a video camera, and one or more environmental sensors. Data from the sensor suite is combined to detect and identify...
8884570 Position control system  
The invention provides a position control system comprising a moving portion that is movable, a position-detection portion that detects a position of the moving portion, a drive portion that...
8878479 Motor control device  
A motor control device main unit includes a pressure command signal generation module, a pressure control module, a speed control module, and a current control module. The pressure command signal...
8878466 Electromechanical linear actuator  
An electro-mechanical linear actuator unit comprising an actuator housing that accommodates at least two electric drives, each of which, when actuated by a control device, sets an associated drive...
8878478 Projector and method of controlling the same  
A projector includes: a drive motor adapted to drive a lens unit; a control section adapted to control the drive motor; a storage section adapted to store a target position of the lens unit; and a...
8872463 Electric motor controller comprising function for simultaneously estimating inertia, friction, and spring  
A sinusoidal command is added to a torque command of a controller to acquire a velocity and a current value of an electric motor. An estimated coupling torque value is calculated by calculating an...
8872464 Motor control method  
A motor control method comprises: inputting a PWM signal into a control unit for the control unit to obtain a direction command and a speed command by an identification rule, and generating a...
8866432 Motor control device and image forming apparatus  
A motor control device comprises: a motor control unit that controls a motor; and a signal output unit that outputs a signal according to rotation of the motor, wherein the motor control unit...
8860355 Motor control device  
A motor-control-device main unit includes a pressure-command-signal generating section, a pressure control section, a speed control section, a current control section, and a parameter-adjusting...
8853988 Control systems and methods for compensating for effects of a stage motor  
Embodiments of the invention compensate for one or more effects of a stage motor in a precision stage device. A feedforward module receives an input signal corresponding to the effect of the motor...
8855815 Motion path search device and method of searching for motion path  
A motion path search device which searches for a motion path of a movable part of a robot capable of being taught a motion by direct teaching in which the robot is directly moved by an operator...
8847538 Ripple counter for multi-pole motors  
An electric motor includes at least one first brush and at least one second brush, which are arranged in a stationary fashion and arranged to contact a commutator that rotates with a rotor. The...
8847532 Electric tool  
An electric tool comprises a removable battery pack 2 as a power supply, a motor M as a power source, a drive unit being driven by said motor, a switch SW as an operation input unit, and a control...
8841874 Method of detecting an operating condition of an electric stepper motor  
An electrical stepper motor comprises a magnetical rotor and at least two electromagnetical driving coils for causing rotation of the rotator. A method of detecting an operating condition of the...
8836265 Numerical control device  
In order to obtain an NC device that can easily shift by an arbitrary amount a main spindle single-revolution reference signal without being dependant on hardware and while rotating a main...
8836266 Small motor controller  
A small motor controller (SMC) system includes a motor configured to control a position of a rotor, a sensor configured to detect position information of the rotor by detecting a feature on the...
8836262 Method and arrangement for determining the dynamic state of an electric motor  
In a method for the determination of a current initial rotational position of a rotor and in an arrangement for carrying out same, an incremental position encoder outputs an output signal. The...
8823308 Software center and highly configurable robotic systems for surgery and other uses  
Telerobotic, telesurgical, and/or surgical robotic devices, systems, and methods employ surgical robotic linkages that may have more degrees of freedom than an associated surgical end effector n...