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| Application No. | Application Title | Issue Date |
| 20100109595 | INTEGRATED ACTUATOR SENSOR STRUCTURE An integrated sensory actuator (10) which uses an electroactive polymer is provided. The sensory actuator is comprised of an actuating member (12) made of an ionic polymer-metal composite; a sensing member (14) made of a piezoelectric material; and ... | 05/06/2010 |
| 20100097681 | MICROMECHANICAL ELEMENT AND SENSOR FOR MONITORING A MICROMECHANICAL ELEMENT A micromechanical element includes a movable functional element, a first retaining element, a second retaining element, a third retaining element, and a fourth retaining element. The first retaining element and the functional element are connected at a first junction, t... | 04/22/2010 |
| 20100072939 | MOTOR DRIVING SYSTEM COMPATIBLE WITH DIFFERENT TYPES OF ENCODERS A system compatible for different types of signals relates to a motor includes a differential amplifier, a comparator, and a transmitting device. The differential amplifier is configured to receive one of a differential digital pulse signals pair and a differential anal... | 03/25/2010 |
| 20100066298 | POSITIONING DEVICE IN GANTRY TYPE OF CONSTRUCTION In a positioning device in gantry type of construction, due to a special arrangement of the position-measuring devices used for the positioning, errors due to thermal expansion of the positioning device may be avoided to a great extent. In particular, attention is given... | 03/18/2010 |
| 20100060966 | ACTUATOR USING PIEZOELECTRIC ELEMENT AND METHOD OF DRIVING THE SAME An actuator using a piezoelectric element and a method of driving the same. The actuator includes at least one piezoelectric cell moving by displacement according to an input voltage, at least one piezoelectric sensor sensing the displacement of the at least one piezoel... | 03/11/2010 |
| 20090309532 | DISPLACEMENT DETECTING METHOD, CORRECTION TABLE MAKING METHOD, MOTOR CONTROL APPARATUS, AND PROCESSING MACHINE A displacement detecting method of the present invention includes the steps of driving a moving part 3 using a drive unit 1, detecting a displacement amount 6 (detected angle θm′) of the moving part 3 using a displacement detector 5... | 12/17/2009 |
| 20090256309 | Code wheel manufacturing method, code wheel, rotary encoder, rotation control unit, belt carrier unit, and image forming apparatus A manufacturing method for a code wheel for a rotary encoder is provided. The code wheel includes, in a central portion, a hole into which a rotary shaft of a rotary member is fitted and a code portion including a radial code pattern in a circumferential edge portion. T... | 10/15/2009 |
| 20090058349 | ANGLE-CALCULATION APPARATUS AND ANGLE-CALCULATION METHOD FOR THREE-PHASE OPTICAL ENCODER An angle-calculation apparatus for three-phase optical encoder receives three-phase sinusoidal signals 120 degree phase from the optical encoder and obtains angle information for a motor rotor. The angle-calculation apparatus includes an A/D converter, a digital signal ... | 03/05/2009 |
| 20090033270 | Position Feedback Device for a Motor A position feedback device for a motor comprises a driven member and a sensing device. The driven member is indirectly connected to the motor and driven by it. The sensing device detects the travel length of the motor by sensing the driven member. With the method of ind... | 02/05/2009 |
| 20080123811 | 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 computer operationally coupled to a motor-load element. The servo system ... | 05/29/2008 |
| 20080061724 | POSITION DETECTION DEVICE FOR PERMANENT MAGNETIC MACHINES The invention indicates a correct one of multiple rotor positions. For example, the invention can determine, in a PM machine, which of two possible positions a rotor is in when the position is known only within ±π radians. If the actual rotor position is known to be o... | 03/13/2008 |
| 20080030160 | Head position control method, head position control device, and disk device In a positioning control device based on control of an observer having a disturbance suppression function, a disturbance suppression function according to a head position is added without impairing the control characteristics of the observer. The position control device... | 02/07/2008 |
| 20080018287 | Machine Tool Controller In a machine tool controller (1): a position control unit (12) controls, based on an operational signal input from without during manual operation, a moving body's move-to point and moving speed; a memory (13) stores data modeling the moving body an... | 01/24/2008 |
| 20080001568 | Position shift control apparatus ensuring durability and operation accuracy thereof A position shift control apparatus is provided which includes an electrical motor joined to an object through an output shaft and a torque transmission mechanism, a detent mechanism producing elastic pressure to hold the object at a target position, and a motor controll... | 01/03/2008 |
| 20080001567 | MOTOR CONTROL DEVICE A motor control device detects acceleration of an object driven by a motor through a transmission mechanism, determines a correction command based on the detected acceleration of the driven object, corrects an operation command for the motor by the correction command th... | 01/03/2008 |
| 20080001569 | Motor driving apparatus A motor driving apparatus includes a control circuit configured to control an electric current flowing in a coil for driving a motor for driving a galvanometer mirror. The control circuit includes a PWM signal generating circuit configured to generate a PWM signal havin... | 01/03/2008 |
| 20070262742 | Servo Device A servo device is provided which includes a drive source made of a brushless motor. A DC motor driving integrated circuit produces output signals and controls the output of a three-phase brushless motor driving integrated circuit to drive the brush less motor. A selecti... | 11/15/2007 |
| 20070229019 | ELECTRIC MOTOR CONTROL UNIT An electric motor control unit (10) comprises: a first position detecting means (31) for detecting a position of a mechanical movable portion (24) driven by an electric motor (20); a second position detecting means (32) for detecting a... | 10/04/2007 |
| 20070126389 | Positioning device A positioning device for positioning a positioning element has a motor (18) that drives the positioning element (10) and has a measuring device that directly measures the positioning travel of the positioning element for controlling the motor (18). ... | 06/07/2007 |
| 20070108933 | Planar direct drive unit comprising a position measuring system The invention relates to a planar direct drive unit comprising a passive unit (1), an active unit (3), a bearing unit, and a position measuring system that is provided with a material measure and a measuring sensor which scans the material measure and supp... | 05/17/2007 |
| 20070096678 | Positional indicia misplacement compensation Apparatus and method for compensating for positional indicia misplacements in the positioning of a control object, such as with servo seam misplacements on a data storage device storage medium. An actual position for the control object is determined in relation to a cor... | 05/03/2007 |
| 20060238040 | Rotating electric machine and method and device for positioning rotational position sensor for the machine The rotating electric machine has a stator coil wound around a stator, a magnetic pole and a signal rotor fixed to a rotor, and a detection stator, disposed opposite to the signal rotor, for detecting the rotational position of the rotor, characterized by further compri... | 10/26/2006 |
| 20060238160 | Drive apparatus Optical disc drives designed for reduced power consumption switch the supply voltage in three stages between first, second, and third power supplies, but the reduction in power consumption that is possible in the drive circuits with three stage switching control is limi... | 10/26/2006 |
| 20060192517 | 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 of motor rotations to be determined is mounted on an output shaft ... | 08/31/2006 |
| 20060113947 | 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 detecting the rotational angular acceleration of a rotating body is provided, and... | 06/01/2006 |
| 20060108849 | System and method for remote release actuating system A system and method for remote release actuation is disclosed. The system includes a control mechanism, a switch, a power supply, an actuator assembly, a position sensor, a ground, a cable, and a latch mechanism. The method includes the steps of: providing a remote rele... | 05/25/2006 |
| 20060108963 | Method for protecting an electronic device driven by DC motor and circuit for detecting positioning signals thereof A method for protecting an electronic apparatus driven by a DC motor and a detection circuit for detecting positioning signals thereof. The electronic device includes an optical encoder, a code strip, and a DC motor. While moves along the code strip, the optical encoder... | 05/25/2006 |
| 20050285462 | Electric blower and supercharger for automobiles using the same A compact-sized, high-efficient, and high-speed electric blower has high centrifugal resistance. The electric blower includes a rotor that has a multi-slot rotor winding along which an excitation electric current is supplied through a slip ring by a power supply brush, ... | 12/29/2005 |
| 20050134210 | Electrical actuator system and vehicle air conditioner using the same In a vehicle air conditioner with an electrical actuator system, a transmission mechanism transmits a rotation force of an electrical motor to an air mixing door when first and second pulse signals are generated from first and second brushes in a door operation region o... | 06/23/2005 |
| 20050035735 | Positioning apparatus and controlling apparatus A rotational positioning apparatus that comprises an apparatus for moving a head or disk and that positions the head relative to the disk, with this rotational positioning apparatus capable of both static positioning and dynamic positioning, also comprises a processor f... | 02/17/2005 |
