|
Match
|
Document |
Document Title |
|
|
7633256 |
Encoder eccentricity correction for motion control systems
Correction of rotary encoder eccentricity in an image forming device having a motor controller using period and position pulse train feedback signals. A motor includes an encoder disc rotating with...
|
|
|
7586283 |
Magnetic encoder device and actuator
Provided is a magnetic encoder device capable of detecting a rotating angle of an actuator having a cavity structure. The magnetic encoder device includes a ring-shaped rotating body 11 , a...
|
|
|
7576504 |
Pivoting and barrier locking operator system
An operator system for moving a barrier between limit positions, includes an operator motor assembly mounted to the barrier, wherein the motor assembly is movable between an operating position and...
|
|
|
7508154 |
Integrated motor and resolver including absolute position capability
An integrated motor and position sensor achieves motion between a moving portion and a stationary portion by electrically energizing poles to interact with magnetics respectively on the moving and...
|
|
|
7468594 |
Protection device
The present invention relates to a safety system for use in protection functions, which system prevents that an error in one control circuit do not result in a function failure by using supervising...
|
|
|
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....
|
|
|
7377379 |
Transport belt drive control device, image forming device, and transport belt drive control method
In a transport belt drive control device, a first detection unit has a first resolution and indirectly detects a feed amount of a transport belt, a control unit controls drive of the transport belt...
|
|
|
7375487 |
Geared motor
A motor encoder is mounted on a motor shaft of a geared motor 1 , and the origin position is detected by using a Z-phase signal. An absolute value encoder with a precision that allows the number...
|
|
|
7282883 |
Pivoting and barrier locking operator system
A system for moving a barrier between limit positions, includes an operator motor assembly mounted proximate to the barrier, wherein at least a portion of the motor assembly is movable between an...
|
|
|
7227329 |
Wire-saving optical encoder having servomotor identification information
A wire-saving optical encoder having servomotor identification information is applied to a wire-saving transmission design to provide a circuit and a method for processing servomotor identification...
|
|
|
7224139 |
Servo driver and encoder signal processing IC
A servo driver ( 3 ) includes: an input section ( 11 ) for input-specifying the type of an encoder ( 7 ) at the side of an actuator ( 2 ); a control section ( 13 ) for generating a control signal (...
|
|
|
7221114 |
Conveyance control apparatus and image forming apparatus
A conveyance control apparatus controls an amount of movement of a carrier. A first encoder detects an amount of movement of the carrier and outputting a first signal. A second encoder detects an...
|
|
|
7209862 |
Self-diagnosing system for encoder
A self-diagnosing system for an encoder. The system includes an encoder circuit for outputting information detected by an encoder; a data preparing section provided in the encoder circuit and...
|
|
|
7183730 |
Method and apparatus for receiving and manipulating sheet material
Disclosed are systems and methods for receiving and manipulating the travel of a sheet material, such as paper, from a device such as an imaging device. One embodiment of a system can be...
|
|
|
7132814 |
Method of calculating correction value and method of manufacturing printer
A correction value calculating method includes: preparing a printer including a motor, a PID control system for controlling the motor, and a memory for storing a correction value, the printer being...
|
|
|
7117042 |
Semiconductor device and method for controlling the same
A semiconductor device, which is controlled based on a control signal corresponding to control data includes: a control register in which the control data is set; a sequencer which performs read...
|
|
|
7103448 |
Robot system
A robot system capable of performing automatic updating of data inherent to a robot mechanism section or a mechanical unit thereof when changing the robot mechanism section or the mechanical unit....
|
|
|
7049778 |
Inverter control apparatus and inverter control method
An interrupt signal is generated at each of rising timings of PWM signals which are produced on the basis of phase-shifted triangular wave carrier signals for phases, and voltage command values for...
|
|
|
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...
|
|
|
7012397 |
Encoder and control apparatus for motor
In a control apparatus, a “characteristic value calculation” block calculates a characteristic value (such as amplitude value, offset value, or waveform distortion for each phase of two-phase...
|
|
|
7005815 |
Electric actuator system
The detection of a pulse signal in an initialization pattern is ensured regardless of the position where a DC motor is stopped. A CPU detects the pulse signal generated by the pulse generator and...
|
|
|
7005821 |
Servomotor controller
In a servomotor controller, when a comparing circuit ( 70 ) detects that a position of an object to be controlled has been achieved to a target position, an operation inhibiting signal generating...
|
|
|
6984947 |
Apparatus and method for adjusting components of an optical or mechanical system
An apparatus and a method for adjusting components of an optical system, the components including an adjustment device. An electric positioning motor can be engaged onto the adjustment device of...
|
|
|
6911798 |
Rotation angle detecting apparatus for synchronous rotary electric machine
A rotation angle detecting apparatus for a synchronous rotary electric machine includes an incremental encoder. The incremental encoder generates an index pulse each time electric power is supplied...
|
|
|
6912427 |
Programmable limit switch with distributed intelligence
A programmable limit switch includes output channels for receiving position data, each position value of the position data representing an incremental advance of a workpiece through a production...
|
|
|
6885164 |
Climate control system and motor actuator therefor
A motor actuator of a climate control system includes an specialized electric motor with a motor housing enclosing an encoder ring on a motor shaft having a plurality of opposite encoder-segment...
|
|
|
6873129 |
Method of controlling rotational velocity of a rotatable member during encoder initialization for an imaging apparatus
A method of controlling a rotational velocity of a rotatable member during initialization of an analog encoder unit that generates a channel A signal and a channel B signal, includes the steps of...
|
|
|
6859002 |
Device for controlling an electronically switched motor by means of a position signal
A device for controlling an electronically switched motor which includes a coder ( 2 ) having a main multipole track ( 2 a ) and a so-called “revolution pip” multipole track ( 2 b ); a fixed...
|
|
|
6853161 |
Recording apparatus, motor control apparatus, and motor control method
A motor control apparatus which can improve detection accuracy of control information and stabilize a control system includes a detector for detecting first pulse information which corresponds to...
|
|
|
6841962 |
Reciprocating linear actuator
A digitally indexed reciprocating linear actuator includes a frame and a servomotor mounted to the frame. A crank is gear-coupled with integer gear ratio to the servomotor for unidirectional...
|
|
|
6838849 |
Serially connected double-phase full-wave brushless dc motor
A serially connected double-phase full-wave brushless dc motor includes a first drive member, a second drive member, a first sensor member, a second sensor member, a first motor coil and a second...
|
|
|
6819074 |
Apparatus and method of controlling a driving speed of a motor
An apparatus for controlling a driving speed of a motor comprises a motor controller provided in the motor controlling apparatus detecting the motor driving speed in response to pulses outputted...
|
|
|
6756760 |
Motor control device and motor control method
A motor control apparatus and a motor control method that instruct deenergization of a motor a predetermined period of time after an arrival of a subject to be driven by the motor at a speed...
|
|
|
6756759 |
Angle or position detecting apparatus, method thereof, servo apparatus, and servo method, and motor
A current target angle stored in a target angle register is subtracted from the immediately preceding target angle stored in a register by a subtracting device. As a result, the length (amount) and...
|
|
|
6750784 |
Method of linearizing a sine and cosine signal
A rotary position transducer with a cosine and sine attenuating voltage wave output has the substantially linear portions segmented and pieced together from a predetermined set of conditions to...
|
|
|
6750626 |
Diagnostic strategy for an electric motor using sensorless control and a position sensor
A strategy to control and diagnose the operation of an electric motor using a sensorless control system augmented by feedback from a position and speed sensor is disclosed. The strategy can improve...
|
|
|
6747430 |
Control method for servomotor in injection molding machine
In a method for controlling a servomotor in an injection molding machine having a servo amplifier which outputs a driving current 16 according to a command signal 15 transmitted from a control...
|
|
|
6741048 |
Pulse-controlled electronically commutated motor
The invention relates to an electronically commutated motor ( 1 ) comprising P phases and N pairs of poles, in which a circular multipole encoder ( 12 ) is associated with the rotating ring ( 6 a )...
|
|
|
6605916 |
Rotation position control apparatus of rotary element of filter
It is an object to perform a near rotating control of a rotary element. As a construction, disclosed is a rotating position control apparatus having a potentiometer constructed by a contact element...
|
|
|
6418274 |
Motor control apparatus and motor control method
A motor control apparatus and a method according to the invention are directed to detecting a motor velocity. Leading and trailing edges of two pulse signals are distinctively detected from one...
|
|
|
6366047 |
Multi-track absolute encoder
A position encoder and a method for estimating absolute position using two or more diffractive grating tracks of differing periods to generate interference fringe patterns on a multi-track sensor....
|
|
|
6333614 |
Method and circuit for monitoring the operating condition of electric motors
A circuit arrangement for monitoring the operational state of an electric motor that includes an angle encoder mechanically connected with an electric motor. A first processor electrically...
|
|
|
6226558 |
Method of controlling the drive of a computer-controlled conveyor device
A method of controlling the drive of computer-controlled transporting devices (2), in particular crane facilities with lifting winches and at least one mast supported on a moving frame on which are...
|
|
|
6194863 |
Method and apparatus for driving a stepping motor
A method and an apparatus for driving a stepping motor is provided. Digital desired current values are stored in the form of a sine table and are read from the sine table at a constant sampling...
|
|
|
6133706 |
Printer subsystem motion-control sensor apparatus
In accordance with the described invention, a stepper motor that drives a printer's movable subsystem, e.g. a sled-mounted ink-jet service station, is replaced with a less expensive and quieter DC...
|
|
|
6130516 |
Process and device for monitoring objects
Described are a process and a device for monitoring objects, such as tools or process areas. A feeler pin (34) can be pivoted by means of an electric motor (20) in both directions of rotation,...
|
|
|
6118244 |
Circuit arrangement for powering an electric motor
A circuit arrangement for powering an electric motor having at least three windings from a direct voltage source via a commutation circuit which, for each winding terminal of the electric motor,...
|
|
|
6111384 |
Method for controlling motor speed
A method of controlling motor speed. The motor speed control apparatus includes an encoder in mechanical association with the motor. The encoder has one channel providing an encoder signal having a...
|
|
|
6107764 |
Drive control for a switched reluctance motor
A control circuit and method for controlling a switched reluctance motor are provided. The control circuit includes a tone wheel and a Hall effect sensor for generating a position feedback signal...
|
|
|
6072296 |
Asynchronous motor for a drive mechanism, such as hoists or running gears, with controllable rotational speed and rotational direction
An asynchronous motor for a drive mechanism, in particular a hoist or a running gear includes a motor housing with opposite end faces covered by respective end shields, and an annular short-circuit...
|