| Patents for G05D 3 - Control of position or direction (13,741) |
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| 05/03/1989 | CN1032685A Industrial sewing machine |
| 05/02/1989 | US4827124 Electro optical transducer utilizing aligned light conductors |
| 04/20/1989 | DE3833243A1 Control device for the control of a desired angular position of the output axle of a servomotor |
| 04/19/1989 | CN2036237U Digital console for mechanised lamps |
| 04/18/1989 | US4823134 Orienting a mechanism with respect to a target |
| 04/18/1989 | US4823000 Apparatus for indicating the value of a variable |
| 04/18/1989 | CA1252889A1 Coding and reading device for parts carrying elements intended for the feeding of predetermined work stations |
| 04/12/1989 | CN1032392A Mechanically tracking solar cooker of three dimentions |
| 04/11/1989 | US4819543 Electric and pneumatic feedback controlled positioner |
| 04/05/1989 | EP0309824A1 Method for the digitally controlled positioning of electric motor-driven axes |
| 04/04/1989 | US4819167 System and method for detecting the center of an integrated circuit wafer |
| 04/04/1989 | US4818924 Electric actuator for automotive air conditioning systems |
| 04/04/1989 | US4817848 Compliant motion servo |
| 04/04/1989 | US4817499 Tractor hitch control system |
| 03/29/1989 | EP0308762A1 Position control device for a hydraulic advance drive, in particular a hydraulic press or stamping machine |
| 03/28/1989 | US4815873 Initializing method for printing type rings in printer |
| 03/23/1989 | WO1989002624A1 Method of controlling robot depending upon load conditions |
| 03/23/1989 | WO1989002623A1 Robot controller |
| 03/22/1989 | EP0308126A2 A drive circuit for an actuator |
| 03/22/1989 | EP0307834A2 Positioning control system |
| 03/21/1989 | US4814681 Rotary body position control apparatus |
| 03/21/1989 | US4813443 Method for controllably positioning a solenoid plunger |
| 03/21/1989 | US4813339 Pulse-width-modulation control of parallel three-way valves to supply single-acting quick-response actuator |
| 03/21/1989 | CA1251540A1 Electrically-controlled rotary actuator |
| 03/15/1989 | EP0307237A2 Signal amplifier |
| 03/15/1989 | EP0307130A2 Position control method for movable member and apparatus therefor |
| 03/15/1989 | EP0306611A2 Device for monitoring or controlling the position of an actuator with servomotor and feedback potentiometer |
| 03/15/1989 | EP0306502A1 Positive feedback position servo |
| 03/14/1989 | US4812666 Position feedback enhancement over a limited repositioning area for a moveable member |
| 03/09/1989 | WO1989002112A1 Process and device for positioning a part |
| 03/09/1989 | DE3728552A1 Contactless positioning and control device, which works by means of ultrasound transit-time measurement |
| 03/08/1989 | EP0305498A1 Crash-prevention for disk drive positioning system. |
| 03/08/1989 | CN1031593A Electric actuator for control valve |
| 03/07/1989 | US4810945 Numerical control feed device for machine tool |
| 03/07/1989 | US4809748 Automatic sampling device |
| 03/01/1989 | EP0304526A2 Electric actuator for a control valve |
| 02/28/1989 | US4808064 Micropositioning apparatus for a robotic arm |
| 02/23/1989 | WO1989001725A1 Apparatus for producing controlled movement |
| 02/15/1989 | EP0302943A1 Numerical control method having a function for compensating the delay in the follow-up operation |
| 02/15/1989 | CN1003298B Position control system for elevator |
| 02/14/1989 | US4804913 Positioning control system for a fluid powered cylinder |
| 02/09/1989 | WO1989001267A1 Image scanner |
| 02/08/1989 | EP0302683A2 A method of, and an apparatus for, controlling the position of a data transducer head |
| 02/07/1989 | US4803354 Circuit for correcting output phase of rotary encoder |
| 01/31/1989 | US4801857 Servo loop control system with dynamic limiting |
| 01/31/1989 | US4801156 Device for adjusting the position of a strap return element of in particular a safety belt for a motor vehicle |
| 01/26/1989 | WO1989000725A1 Xyz positioner |
| 01/25/1989 | EP0300823A2 Incremental positioning system |
| 01/18/1989 | EP0299542A2 Apparatus and method for adjusting the tracking of a video recorder |
| 01/18/1989 | EP0299374A2 Correction means for correcting the installation of a machine |
| 01/11/1989 | CN1030315A Auto calibrating electro-hydraulic servo driver |
| 01/10/1989 | US4797757 Servo head positioner with pulse adjusting circuitry |
| 01/05/1989 | DE3721065A1 Equipment for operating a positioning drive |
| 01/04/1989 | EP0297953A1 Electronic control arrangement for a device driven by an electric motor |
| 01/03/1989 | US4796112 Actuator access control system for a magnetic head using trapezoidal drive current |
| 01/03/1989 | US4795955 Position control apparatus |
| 01/03/1989 | US4795952 Joystick for three axis control of a powered element |
| 01/03/1989 | US4795867 Motor actuator for air conditioning system |
| 01/03/1989 | US4794909 Solar tracking control system |
| 01/03/1989 | US4794760 Direct drive motorized acutator control for bleed valves |
| 12/27/1988 | US4794311 Numerical control system |
| 12/27/1988 | US4794309 Electric actuator for a control valve |
| 12/20/1988 | US4792738 Machine position sensing device |
| 12/15/1988 | WO1988009945A1 Positioning apparatus particularly for use in a vacuum environment |
| 12/14/1988 | EP0295152A2 Apparatus for following sun light |
| 12/14/1988 | EP0294929A2 Reluctance/synchro resolver |
| 12/14/1988 | EP0294918A2 Electro-hydraulic servo systems |
| 12/07/1988 | CN87104305A Electric signal transmission system |
| 12/06/1988 | US4789970 Method and device for positioning an element using ultrasonic sensors |
| 12/06/1988 | US4789909 Method and apparatus for placing servo information at predetermined locations on a disc |
| 12/06/1988 | US4789874 Single channel encoder system |
| 11/30/1988 | EP0292575A1 Servo motor controller |
| 11/30/1988 | EP0292574A1 Numerical controller |
| 11/29/1988 | US4788483 Parallel redundant actuator systems |
| 11/29/1988 | US4788482 Position correcting control system for servomechanism device |
| 11/22/1988 | US4786994 Method of and apparatus for controlling the displacement of a movable system driven by an electric motor |
| 11/17/1988 | EP0291099A1 Apparatus for indexing an origin of a moving member |
| 11/17/1988 | EP0290618A1 Digital servo system |
| 11/15/1988 | US4785224 For a motor vehicle |
| 11/10/1988 | DE3714337A1 Servo valve with piezoelectric activation as well as piezoelectric control motor |
| 11/09/1988 | EP0289626A1 Position control system |
| 11/08/1988 | US4783617 Method of restoring a rotary axis to a reference point |
| 11/03/1988 | WO1988008563A1 Servo control circuit |
| 11/03/1988 | WO1988008477A1 Process for regulating the speed of rotation of an electric motor |
| 11/02/1988 | EP0289421A2 Non-contact sensing and controlling of spacing between a depositing tip and each selected depositing location on a substrate |
| 11/02/1988 | EP0289309A2 An apparatus for reading an optical disk |
| 11/02/1988 | EP0289151A2 Motion control apparatus having adaptive feedforward path tracking |
| 11/02/1988 | EP0289150A2 Motion control method with minimum time path generation |
| 11/02/1988 | EP0289084A2 Non-contact determination of the position of a rectilinear feature of an article |
| 10/26/1988 | EP0288233A2 System and method for detecting the center of an integrated circuit wafer |
| 10/26/1988 | EP0287783A2 Controlled pin insertion using airflow sensing and active feedback |
| 10/26/1988 | EP0287684A1 Negative feedback control system |
| 10/19/1988 | EP0286722A1 Electropneumatic position controller |
| 10/18/1988 | US4779031 Motor system |
| 10/11/1988 | US4776433 Elevator door control system |
| 10/04/1988 | US4775926 Apparatus for correcting displacement of movable members of machine tools |
| 10/04/1988 | US4775825 Positioning method and apparatus therefor |
| 10/04/1988 | CA1242781A1 Power transmission |
| 10/04/1988 | CA1242775A1 Optical position location apparatus |
| 09/27/1988 | US4774651 Power transmission |