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7609813 |
System and method for improved collision detection in an imaging device
An imaging system that includes a radiation source. An image receptor is located to receive radiation emitted by the radiation source. The imaging system further has a servo system that includes a...
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7603188 |
Servo motor control system
An electronic cam using a servo motor is controlled such that its motion including its acceleration will be connected between synchronized and non-synchronized control sections. A controlled object...
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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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7583049 |
Sensorless control systems and methods for permanent magnet rotating machines
Systems and methods for controlling a rotating electromagnetic machine. The rotating machine, such as a permanent magnet motor or hybrid switched reluctance motor, includes a stator having a...
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7548835 |
Method and system for integrated inertial stabilization mechanism
The present invention provides a method and system for an innovative design of the automatic stabilization and pointing control of a device based on the MEMS technology, which is small enough and...
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7535192 |
Head positioning control method, head positioning control device and disk apparatus
A positioning control device executes disturbance observer control having a disturbance suppression function, wherein changes of control characteristics are prevented even if the disturbance...
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7519440 |
Output cam system and method
A position of a motion control axis is monitored and an output device responsive to the position of the motion control axis is controlled. The controlling further includes latching an electronic...
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7509177 |
Self-calibrating orienting system for a manipulating device
The invention relates to the control of an orienting/positioning system comprising comprising at least a sensor and an actuator for controlling an orienting and/or positioning action adapted to...
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7498759 |
Semiconductor wafer processing accelerometer
An end effector of a robot tool that includes accelerometers and methods to sense end effector motion. A semiconductor substrate or similar object may be supported by the end effector. Motion of...
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7495409 |
Method and apparatus for eliminating stall and cogging in multi-phase stepping motors
The lead or lag relationship between the stator and rotor of a stepper motor is monitored on a continuing basis by an incremental encoder, in feed-back relation, and adjusts the lead or lag to...
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7463000 |
Motor controlling method, motor controlling apparatus, and recording apparatus
A method of controlling, by an adaptive control method, an electric motor as a drive source of an operating apparatus that operates, based on a driving force produced by the electric motor, under...
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7462998 |
Apparatus and method for generating acceleration profile for controlling object using optimized waveform shaping
A technique is disclosed for generating an acceleration profile indicative of a time history of an acceleration of a controlled object, to thereby generate at least one of a target velocity profile...
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7433762 |
Methods for controlling multiple actuators
Methods for controlling at least two actuators are provided. An internal control system sends an input received from the main control system to a first actuator and diverts a portion of the input...
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7425810 |
Disk drive management
Arrangements and methods for implementing a “spin-down policy” for HDD motors that is “smart”, flexible and admirably achieves an objective of ensuring prolonged motor life as just...
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7420348 |
Drive apparatus
Optical disc drives designed for reduced power consumption switch the supply voltage in three stages between first, second, and third power supplies. The reduction in power consumption that is...
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7417399 |
Integrated motor device and method of setting and reading driver configuration parameters using driver configuration data embedded in driver control signals
An integrated motor device with driver circuitry and method of setting and reading configuration parameters of the driver circuitry uses configuration data embedded in driver control signals to set...
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7414379 |
Servo control system
A servo control system having a proportional (P) or a proportional plus integral (PI) position controller, which output signal represents an input speed reference signal for a speed close loop...
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7408313 |
Low power preamplifier writer architecture
A circuit is adapted to activate a writer head of a data storage media drive during both the boost periods as well as the steady state periods. The current supplied to the writer head during the...
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7397212 |
DC motor phase estimation with phase-locked loop
A DC motor phase estimation algorithm that estimates a speed-related harmonic frequency of a DC motor current under dynamic load conditions having known geometry parameters. The algorithm estimates...
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7392113 |
Systems for controlling multiple actuators
Methods, control systems, and information handling systems for controlling at least two actuators are provided. An internal control system sends an input received from the main control system to a...
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7372660 |
Disc storage system with adaptive PID control
A disc drive controller circuit for an actuator receives reference data indicating a desired actuator position “θ d ”, error data indicating a difference “e” between the desired actuator...
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7345443 |
Motor control apparatus
It is an object of the invention to provide a motor control apparatus capable of ensuring a control function even for a large inertia moment ratio. In a motor control apparatus including a...
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7342379 |
Sensorless control systems and methods for permanent magnet rotating machines
Systems and methods for controlling a rotating electromagnetic machine. The rotating machine, such as a permanent magnet motor or hybrid switched reluctance motor, includes a stator having a...
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7328086 |
Robotic tool coupler rapid-connect bus
A tool changer comprising a master module and a tool module includes a rapid-connect communication bus between the master and tool modules. A unique tool identification number, along with other...
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7319910 |
Method and device for controlling a movement of a movable machine element of a machine tool or production machine
A method and device for controlling a movement of a movable machine element of a machine tool or production machine with at least two drive axles are disclosed. At least one mechanical...
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7316382 |
Controlling electromotive actuators
The invention relates to an electromotive actuator and a corresponding circuit in order to replace a pneumatical actuator system in a simple manner by an electric system.
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7295907 |
Recovery of calibrated center steering position after loss of battery power
The steering angle of a vehicle is monitored using position sensors of an electric motor of an electric power assisted steering (EPAS) system. A position of the electric motor corresponding to the...
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7292000 |
Angular velocity measuring device and leg-moving robot
An angular velocity measuring device ( 1 ) includes a first sensor ( 2 ) (vibration gyro) and a second sensor ( 3 ) (gas rate gyro). The detection output of the first sensor ( 2 ) is inputted to a...
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RE39906 |
Gyro-stabilized platforms for force-feedback applications
Force feedback in large, immersive environments is provided by device which a gyro- stabilization to generate a fixed point of leverage for the requisite forces and/or torques. In one embodiment,...
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7245101 |
System and method for monitoring and control
The invention provides for the monitoring and control of a system, such as a linear electro-mechanical transducer, e.g. a linear electric motor, particularly when driven in a reciprocating manner....
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7239104 |
Position-dependent friction compensation for steering systems
A method is for compensating for a rotor angle deviation of a motor, which may be used as an actuator, e.g., as a servo actuator, in a steering system. The rotor angle deviation is compensated for...
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7218974 |
Industrial process data acquisition and analysis
A method for optimizing an industrial process data is disclosed. The method includes collecting data from a plurality of sensor elements, wherein each sensor element collects data from a portion of...
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7208898 |
Near time-optimal jerk trajectory for positioning a control object
Method and apparatus for control object manipulation from an initial position to a final position. A jerk control profile describes a near time-optimal jerk trajectory for the control object and...
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7200520 |
Device and method for monitoring an electric power station
The invention concerns a method and a corresponding device for monitoring a technical installation. The invention is characterized in that a dynamic model of at least one system of the technical...
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7190140 |
Sliding mode controller position control device
A position control device for causing a position of a control system, including a servomotor and a moving body driven by the servomotor, to track a command value. The position control device...
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7187148 |
Controller
Disclosed is a controller for restraining vibration of a driven element driven by a servomotor. The driven element driven by the servomotor is provided with acceleration detecting means. A...
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7181294 |
Vibration control device
A control device for controlling the motion of a movable part in a machine while suppressing vibration generated in the movable part. The control device includes a state-variable estimating section...
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7170249 |
Electrical phase compensation in BEMF spindle motor control
A method and apparatus for compensating for the asymmetrical phases of a spindle motor in a disc drive are provided. With the apparatus and method, compensation values are learned by sampling speed...
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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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7145304 |
Rotating storage media control loops having adaptive feed forward insertion of signals including harmonics
An adaptive feed forward controller inserts signals into control loops of an optical disc player and/or recorder at a frequency of the rotation of the disc and one or more harmonics thereof, while...
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7136740 |
Machine tool control apparatus
The invention aims to reduce an error occurring due to the mounting condition of an acceleration sensor. In the case of a two-axis sensor, an angle θ is calculated from outputs (x′, y′) that...
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7136719 |
Method for the computer-assisted regulating of a plurality of serially coupled machines, regulating device and machine arrangement
A method for stabilizing machine processes in which the machines are regulated by a machine regulation matrix selected from a plurality of machine regulation matrixes using a detected machine...
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7135830 |
System and method for identifying operational parameters of a motor
A system and method for establishing estimated values of electrical parameters of a motor. The electrical parameters may be established from stator resistance data and motor data obtained at a...
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7109670 |
Motor drive with velocity-second compensation
An apparatus for use with a signal generator and a motor controller includes a velocity compensator, an adjustor, and a velocity regulator. The signal generator provides a reference velocity...
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7096076 |
Output cam system and method
In accordance with a first preferred embodiment, a control method comprises monitoring a position of a motion control axis and controlling an output device responsive to the position of the motion...
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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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7076322 |
System and method for satisfying move constraints when performing a motion control sequence
A system and method for specifying and satisfying move constraints when performing a motion control sequence. One or more motion control operations may be included in a sequence in response to user...
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7068002 |
Motor control device
A motor control device comprises: a current limiter 115 for limiting a current-instruction signal Ir for a motor 18 and for turning a limiting signal L from off to on when the...
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7057366 |
Method for estimating load inertia and a system for controlling motor speed using inverse model
A method for estimating load inertia and system for controlling motor speed using inverse model are provided, suitable for an alternating current (AC) servo module. An inverse system is connected...
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7053579 |
Device and method of controlling operation of robot apparatus
A device of controlling an operation of a robot apparatus having at least a plurality of movable units includes a driver driving the movable units, a determiner determining states of the movable...
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