Patents for G05D 3 - Control of position or direction (13,741)
07/1990
07/31/1990CA1272268A1 Registration of press to existing pattern
07/25/1990EP0378913A2 Apparatus and process for measuring data disk runout and acceleration parameters
07/25/1990EP0378708A1 Apparatus for controlling acceleration and deceleration for servo control
07/24/1990WO1990008016A1 Positioning correction for robots
07/24/1990CA2022988A1 Corrective positioning method in a robot
07/18/1990EP0378331A2 Servo circuit
07/18/1990EP0378328A2 Servo positioning circuit
07/18/1990EP0186596B1 Linear displacement control system comprising a dc motor
07/17/1990US4942292 Apparatus for following sun light
07/17/1990US4941265 Apparatus for preventing changes of the positions of machines
07/10/1990US4941106 Apparatus for recognizing and approaching a three-dimensional target
07/10/1990US4940924 Positioning control apparatus
07/03/1990CA1271243A1 Power transmission
06/1990
06/28/1990WO1990007032A1 Teaching/playback method of working machine
06/27/1990EP0374255A1 Method of controlling servo motor
06/26/1990US4937512 Stability compensating circuit
06/26/1990US4937510 Control apparatus for a linear motor for driving a pickup
06/19/1990CA1270542A1 Method and apparatus for correcting resolver errors
06/13/1990EP0372082A1 Method for returning to origin
06/12/1990US4933674 Method and apparatus for correcting resolver errors
06/12/1990US4933613 Control for operating a plurality of window operators
06/12/1990CA1270325A1 Means for indexing a rotary arm in small angular steps
06/06/1990EP0371146A1 Numerical controller
06/06/1990EP0371142A1 Method of correcting loci of an industrial robot
06/06/1990EP0371110A1 Compliant motion servo
06/05/1990US4932013 Apparatus for reading an optical disk which controls track jumping accurately and stably
05/1990
05/30/1990EP0370105A1 Digital follow-up system
05/30/1990EP0370053A1 Image scanner.
05/23/1990EP0369866A1 Mobile member control apparatus
05/23/1990EP0369393A2 Precision work positioning by electrical measurement
05/23/1990EP0369190A1 Position control method and apparatus
05/22/1990US4928091 Apparatus for detecting position of moving object
05/22/1990CA1269435A1 Mechanism for positioning an output member
05/15/1990US4926063 Square root digital-to-analog converter
05/15/1990US4925312 Robot control system having adaptive feedforward torque control for improved accuracy
05/15/1990US4924754 Circuit arrangement for a hydraulic drive in a position control circuit
05/08/1990US4924165 Servo control system carrying out coarse control and fine control
05/08/1990CA1268858A1 Adaptive control technique for a dynamic system
05/08/1990CA1268857A1 Digital servo control system for a data recording disk file
05/03/1990WO1990004815A1 Reference point return system
05/01/1990US4920660 Fine positioning device and displacement controller therefor
04/1990
04/25/1990EP0364572A1 Apparatus for tracking the surface of a workpiece
04/25/1990EP0364496A1 Process and device for positioning a part.
04/25/1990CN1007756B Power transmission
04/24/1990US4920305 Auto calibrating electro hydraulic servo driver
04/18/1990EP0364164A2 Capacitance guided assembly of parts
04/18/1990CN1041484A Automactic orientation system of tv antenna
04/17/1990US4918546 Tracking control devices for video tape recorders
04/11/1990EP0362379A1 Device for remote transmission of rotation angle and torque between driving and driven shafts
04/11/1990EP0156920B1 Profiling control method
04/10/1990WO1990011562A1 Feedfordward control unit for servomotor
04/10/1990US4916375 Servomotor control apparatus
04/05/1990WO1990003603A1 Servo controller
04/05/1990DE3831988A1 Proportional valve with a control amplifier
04/03/1990US4914370 Servo-control circuit
04/03/1990US4914366 Positioning control system
04/03/1990US4914362 Electric circuit with limit switches for limiting rotatable range of electric drive unit
03/1990
03/29/1990DE3832577A1 Control device for an installation movable by a pull-cord, especially for a stage curtain
03/29/1990DE3832366A1 Method and device for exact horizontal guidance or alignment
03/28/1990EP0360490A2 Hybrid sample rate servo motor controller
03/27/1990US4912753 Robot axis controller employing feedback and open loop (feedforward) control
03/27/1990US4912387 Adaptive noise cancelling for magnetic bearing auto-balancing
03/22/1990WO1990003060A1 Control apparatus
03/21/1990EP0358989A2 Position or speed sensing apparatus
03/20/1990US4909822 Heating; control actuator for positioning
03/20/1990CA1266761A1 Automated positioning system
03/15/1990DE3830275A1 Servo drive and method for converting a control deflection into an associated position deflection
03/13/1990US4908559 Robot control apparatus
03/08/1990WO1990002367A1 Numerical controller
03/06/1990US4906908 Method for numerical position control of motor-driven shafts
03/06/1990US4906907 Robot system
02/1990
02/28/1990EP0355115A1 Process for regulating the speed of rotation of an electric motor.
02/27/1990US4903940 Device for positioning an adjusting member
02/22/1990WO1990001732A1 Impingement detection/driving stop method in machine driven by servo motor
02/21/1990EP0355050A2 X-Y table error mapping apparatus and method
02/20/1990US4902953 Motorized window blind electrical actuator
02/20/1990US4902950 Numerical control method with response delay compensating function
02/20/1990US4902947 Servo circuit with failure detection mechanism
02/20/1990US4901628 Hydraulic actuator having a microwave antenna
02/20/1990US4901624 Hydraulic driving device
02/13/1990US4899998 Rotational positioning device
02/08/1990WO1990001188A1 Method of returning to origin
02/08/1990WO1990001187A1 Apparatus for controlling acceleration and deceleration for servo control
02/07/1990EP0353897A2 Control system for a disk drive head
02/06/1990US4899234 Adaptive velocity profile for disk actuator control
01/1990
01/30/1990US4897589 Apparatus for indexing an origin of a moving member
01/30/1990CA1265241A1 Disk drive positioning system providing passive head crash protection
01/25/1990DE3825127A1 Position control device for the operation of a hydraulic drive
01/24/1990EP0352137A2 Pulse-width modulator and driving unit using the same
01/11/1990DE3827000A1 Actuating drive for valves and similar regulating elements
01/09/1990US4893254 Manipulator arm position sensing
01/09/1990US4893066 Hybrid sample rate servo motor controller
01/03/1990EP0349086A1 Control system
01/02/1990US4891568 Servo motor system for transportation
01/02/1990US4890599 Solar panel mounting assembly
12/1989
12/27/1989CN1038359A Machine tool error compensation systems and the like
12/26/1989US4890046 Numerical control apparatus
12/26/1989US4889988 Feedback control for scanning tunnel microscopes
12/26/1989US4888878 Fine positioning device
12/19/1989US4888538 System for remote transmission of angular position and force between master and slave shafts