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| Number | Title | Issue Date |
| 8148930 | Control device for controlling a machine tool which can be used to drive tools A control device for controlling a machine tool which can be used to drive tools includes a memory for storing a movement limit value which is respectively assigned to the tools and is specific to the respective tool. A desired value generating unit generates desire... | 04/03/2012 |
| 8035328 | State memorizing device for movable member A state memorizing device for a movable member, includes a lock state determining portion for determining whether or not the movable member, driven by a motor, is in a locked state, based on a motor current, an initial positional information memorizing portion for m... | 10/11/2011 |
| 7884565 | Human-machine interface with passive soft stops A human-machine interface assembly includes a user interface and a passive force feedback mechanism. The user interface is configured, upon receipt of an input force that exceeds a null breakout force, to move from a null position to a first control position and, up... | 02/08/2011 |
| 7868576 | Drive device, travel device, and drive device control method The present invention may be applied to a drive device, a travel device, and a drive device control method which are suitable for use in a robot arm and a twin cycle, for example. By eliminating (reducing) the opportunity of the use exceeding a rated torque of a ser... | 01/11/2011 |
| 7843158 | Medical robotic system adapted to inhibit motions resulting in excessive end effector forces A medical robotic system includes a surgical instrument, a robotic arm assembly, an input device, and a processor. The surgical instrument has an end effector and a sensor for sensing a force exerted by the end effector, and is operatively mounted on the robotic arm... | 11/30/2010 |
| 7365510 | Motor spindle control system and method In a method for measuring motor speed and position by detecting the back EMF generated during pole-pair interactions, a separate respective duration of a power phase suppression signal, that is set during back EMF detection, is stored in memory for each respective p... | 04/29/2008 |
| 7360391 | Control device for servo die cushion A control device, for a servo die cushion, for precisely performing force control without using a force detector. The control device includes a slide position detecting part for detecting the position of the slide, a storing part for storing information representing... | 04/22/2008 |
| 7363109 | Backlash compensation control method, backlash compensation controller and backlash compensation control program To allow a robot performing a cyclic movement upon receipt of a driving force transmitted through a driving force transmission system from a driving source along with a backlash to perform the movement compensated for the backlash, during a first period within a cyc... | 04/22/2008 |
| 7348745 | Controller First and second acceleration detectors are attached to first and second sections on a driven body, and values of accelerations α1 and α2 in a travel direction of the driven body are detected. On the basis of the difference or sum of the acceleration... | 03/25/2008 |
| 7333400 | Regulated low power control system for electrostatic actuators The invention concerns a control system for a servomechanism comprising a control member that can move between first and second positions defining a variable electric quantity respectively between a minimum quantity and a maximum quantity, characterized in that the ... | 02/19/2008 |
| 7333862 | Position control device of moving body, stage device using the position control device, and position control method of moving body A position control device of a moving body, by which position control device a moving body can be driven in a translational manner with high precision where the moving body is not rotated in a yawing direction even if disturbance is input, a stage device using the p... | 02/19/2008 |
| 7305290 | Controlling device of a regulating device of a motor vehicle The present invention relates to a controlling device of a regulating device of a power window. The controlling device includes at least one computer unit to control an actuator of the regulating device. The computer unit is set up to stop or initiate the stop of an... | 12/04/2007 |
| 7271554 | Motor-driving circuit and recording apparatus including the same A motor-driving circuit drives a plurality of motors of different types. The motor-driving circuit includes a plurality of H-bridge circuits for outputting driving signals to the motors, a controller for controlling the plurality of H-bridge circuits, a setting sect... | 09/18/2007 |
| 7205730 | Article transport vehicle The invention provides an article transport vehicle that includes: a vehicle body; a first wheel that supports the vehicle body; a second wheel that is disposed spaced apart from the first wheel in a fore-and-aft direction, and that supports the vehicle body; a firs... | 04/17/2007 |
| 7205744 | Motor spindle control system and method In a method for measuring motor speed and position by detecting the back EMF generated during pole-pair interactions, a separate respective duration of a power phase suppression signal, that is set during back EMF detection, is stored in memory for each respective p... | 04/17/2007 |
| 7176892 | Lever handle type haptic input apparatus equipped with electromagnetic brake A haptic input apparatus includes: a supporting member having a spherical bearing; a lever handle having a spherical portion to be supported by the spherical bearing; an electromagnetic coil arranged opposite to a lower end surface of the lever handle; detection mea... | 02/13/2007 |
| 7109608 | Advanced smooth transition switch A bi-directional smooth transition switch with bumpless transfer is disclosed. It is composed of two feedback loops, each with feedback and forward-loop compensators. During loop operation, one feedback loop is active, while the other is inactive. The smooth transit... | 09/19/2006 |
| 7106313 | Force feedback interface device with force functionality button A force feedback mouse interface device connected to a host computer and providing realistic force feedback to a user. The mouse interface device includes a mouse object and a linkage coupled to the mouse that includes a plurality of members rotatably coupled to eac... | 09/12/2006 |
| 7102320 | Half-bridge control circuit A circuit is configured to detect an output state of a first half-bridge circuit and to generate a first signal and a second signal based on the output state to reproduce the output state at an output of a second half-bridge circuit. ... | 09/05/2006 |
| 7098621 | Motor spindle control system and method In a method for measuring motor speed and position by detecting the back EMF generated during pole-pair interactions, a separate respective duration of a power phase suppression signal, that is set during back EMF detection, is stored in memory for each respective p... | 08/29/2006 |
| 7095193 | Brushless DC motors with remote Hall sensing and methods of making the same A brushless DC motor apparatus includes a housing and a stator assembly coupled to the housing. The apparatus further includes a magnetic rotor assembly rotatably coupled to the housing. The magnetic rotor assembly is configured to rotate within the housing in respo... | 08/22/2006 |
| 7049775 | Servo motor control unit for press-forming machine A servo motor for driving a die is provided with position and speed detectors. Further, a pressure sensor for detecting the pressure applied to a workpiece is provided. In the servo motor control unit, the smaller one of the speed command obtained by feedback contro... | 05/23/2006 |
| 7036703 | Hand-held working tool The present invention relates to a hand-held working tool, such as a setting device used for driving fastening elements such as nails, bolts, pins and the like into a surface, or an at least partially percussive hand-held tool having a housing part (11) and a... | 05/02/2006 |
| 7008430 | Adjustable reamer with tip tracker linkage A positioning tool for a joint socket cutting instrument or a implant is designed for use with a minimally invasive surgical procedure and in conjunction with a computer assisted surgical procedure. The positioning tool has a longitudinally extending drive shaft hav... | 03/07/2006 |
| 7002314 | Electric brake system The present invention provides an electric brake system which detects the occurrence of overshooting, and corrects a feedback gain in the PID feedback control at overshooting. For example, it increases a differential gain Kd. Accordingly, a damping force increases f... | 02/21/2006 |
| 6999852 | Flexible robotic surgery system and method A teleoperator system with telepresence is shown which includes right and left hand controllers (72R and 72L) for control of right and left manipulators (24R and 24L) through use of a servomechanism that includes computer (42). Cam... | 02/14/2006 |
| 6996456 | Robot with tactile sensor device Methods and apparatuses for calibrating and teaching a robot to accurately work within a work environment. The present invention preferably provides one or more tactile sensor devices that may be operatively coupled with a robot or positioned at one or more desired ... | 02/07/2006 |
| 6984955 | Motor control device In a motor control device controlling a motor by a state feedback control, high control accuracy is maintained regardless of fluctuations in a motor load so as to improve control performance of the state feedback control. A control signal (manipulation amount) outpu... | 01/10/2006 |
| 6961637 | On demand adaptive control system An adaptive control system and method for controlling the path feed rate to achieve a target spindle load during machine tool operations. The adaptive control system can provide load monitoring capability, which will actively monitor an incoming load signal from a s... | 11/01/2005 |
| 6956558 | Rotary force feedback wheels for remote control devices A force feedback wheel is provided on a mouse or other interface device manipulated by a user. A sensor detects a position of the mouse in a workspace and sends a position signal to a connected host computer indicating that position. A rotatable wheel is mounted upo... | 10/18/2005 |
| 6943519 | Method and device for weight compensation in a mechanism with closed kinematic chains The aim of the invention is to compensate for the position-dependent length changes caused by the effect of weight in a variety of closed kinematic chains (K1 . . . Kn), for connecting a stationary first element (E1) to a movable second element (E2 | 09/13/2005 |
| 6937942 | Method and apparatus of detecting tool abnormality in a machine tool A method and apparatus is provided of detecting tool abnormality in a machine tool. Permissible minimum and maximum values of load current in a real cutting section are determined for a spindle motor and a servomotor during normal operation of the machine tool. The ... | 08/30/2005 |
| 6931302 | Method for a robot Method for synchronizing a robot where a target is arranged on the movable part of the robot at the respective robot axles. The movable part rotates back and forth and at the same time a sensor reads at least two distinct detectable changes on the target. The center... | 08/16/2005 |
| 6929476 | Dental apparatus A dental equipment for cutting teeth, forming root canals and so on. The dental apparatus includes: an actuator for actuating a cutting tool; a load sensor for sensing a load worked in the cutting tool; and a load indicator for making an operator know the load sense... | 08/16/2005 |
| 6914406 | Electric actuator to produce a predetermined force An electric actuator Includes a first plate and a substantially parallel second plate. A linkage system couples the first plate to the second plate such that moving the linkage system toward an over-center position causes the second plate to move away from the first... | 07/05/2005 |
| 6894451 | Power window apparatus having mechanism for detecting object being caught A power window apparatus includes a window glass having a horizontal side and an inclined side at the upper end thereof; a window frame for supporting the window glass; and a motor for vertically driving the window glass. In this power window apparatus, a parameter ... | 05/17/2005 |
| 6835941 | Stage unit and its making method, and exposure apparatus and its making method By applying a force to cancel a reaction acting on a stator due to driving of a mover to the stator by an electromagnetic interaction generated between reaction canceling magnetic pole units and armature coils, and by having a magnetic pole unit, which constitutes t... | 12/28/2004 |
| 6828743 | Method and device for controlling a winder A method and a device for controlling a winder, where the winding torque (Tw), during winding, is controlled as a function of the desired tractive force in the material to be wound. During winding, repeatedly is calculated which value a quantity (Vl | 12/07/2004 |
| 6826452 | Cable array robot for material handling A cable array robotic system and apparatus for applications such as cargo handling at sea and pallet handling in manufacturing, based on a multi-cable robotic control system is disclosed. The cables are deployed from three or more folding, telescoping masts at the c... | 11/30/2004 |
| 6747882 | Power conversion device A power conversion device including, a power converter controlling a motor in variable speed control, first to second control circuits outputting first to second control signals, first to second detectors detecting a state of the power converter and outputting first... | 06/08/2004 |
