| Patents for G05D 3 - Control of position or direction (13,741) |
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| 03/16/1982 | US4320391 Instrumentation devices using synchro-resolver drive circuitry |
| 03/16/1982 | US4319864 Apparatus for producing rapid movement and smooth braking and a precisely defined final position of a movable robot arm |
| 03/16/1982 | US4319845 Method for achieving alignment between objects |
| 03/16/1982 | CA1120148A1 Method and apparatus for controlling the movement of a recording medium |
| 03/16/1982 | CA1120097A1 Motor control system |
| 03/09/1982 | US4319173 Dual polarity fast discharge integrator apparatus |
| 03/09/1982 | CA1119719A1 Automatic scan tracking |
| 03/02/1982 | CA1119279A1 Off-line teach assist apparatus and on-line control apparatus |
| 02/24/1982 | EP0046343A2 Numerical control method and apparatus |
| 02/24/1982 | EP0046341A1 Signal reproducing apparatus having head tracking control |
| 02/24/1982 | EP0046180A1 Positioning control system with a digital incremental measuring device |
| 02/23/1982 | US4316486 Electrohydraulic control apparatus |
| 02/23/1982 | CA1118886A1 Automatic tracking for a videotape recorder |
| 02/16/1982 | US4316189 Electromechanical display apparatus |
| 02/10/1982 | EP0045667A1 Signal reproduction apparatus |
| 02/10/1982 | EP0045484A1 An electric sewing machine driving apparatus |
| 02/09/1982 | US4315199 Control circuit for a positioning device using a d-c motor |
| 02/09/1982 | US4315198 Digital servo system |
| 02/03/1982 | EP0044967A2 Position control method and system for a setting-cylinder drive |
| 02/02/1982 | US4314291 Self-compensating device for a magnetic disc apparatus |
| 02/02/1982 | US4314187 Digital control system for automatic-focus cameras |
| 02/02/1982 | US4314146 Analog display device |
| 02/02/1982 | CA1117616A1 Protective circuit for compass repeater amplifier systems |
| 02/02/1982 | CA1117519A1 Method and device for setting the direction and/or the inclination of an elongated rock drilling apparatus |
| 01/20/1982 | EP0044263A1 Quick response flow-current converter, especially to control actuation or distribution devices |
| 01/20/1982 | EP0044215A1 Method and apparatus for error correction in position sensing circuit |
| 01/19/1982 | US4312061 Record player |
| 01/19/1982 | US4311946 Actuator with electric feedback signal |
| 01/19/1982 | US4311945 Deceleration method of driving source in location control |
| 01/19/1982 | CA1116726A1 Self-regulating electronic tachometer |
| 01/13/1982 | EP0043725A1 Control system for a tractor power lift system |
| 01/13/1982 | EP0043660A2 Clutch control system |
| 01/12/1982 | US4310911 Control information detecting method and apparatus in optical-type video disc player |
| 01/12/1982 | US4310790 Device for position control |
| 01/12/1982 | CA1116270A1 Filament winding apparatus |
| 01/05/1982 | CA1115513A1 Apparatus for aligning an inspection or repair device with a selected tube in a heat exchanger |
| 12/29/1981 | US4308490 Device for compensating the gain of a servo-controlled circuit by negative current feedback |
| 12/22/1981 | CA1114930A1 Position memory device |
| 12/22/1981 | CA1114924A1 Control system, particularly for use on ships |
| 12/15/1981 | US4305481 Elevator door motion modification |
| 12/15/1981 | US4305480 Integral gain elevator door motion control |
| 12/09/1981 | EP0041382A1 A three-dimensional tracer control apparatus |
| 12/08/1981 | US4304386 Position memory device |
| 12/01/1981 | US4303875 Device for the remote control of the angular position of an aerial rotor |
| 11/25/1981 | EP0040465A1 Bridge positioning device |
| 11/24/1981 | US4301759 Control system, particularly for use on ships |
| 11/18/1981 | EP0039775A1 Electromechanical display apparatus |
| 11/17/1981 | US4301397 DC Antenna rotator system |
| 11/17/1981 | US4300663 Elevator door motion mode control |
| 11/17/1981 | US4300662 Elevator door motor compensations |
| 11/17/1981 | US4300661 Elevator door stall mode with hysteresis |
| 11/10/1981 | US4300226 Compensation apparatus for a servo system with periodic command signals |
| 11/10/1981 | US4300082 Speed-regulated positioning drive |
| 11/10/1981 | US4299308 Position controlled elevator door motion |
| 11/03/1981 | CA1111945A1 Servo system |
| 10/27/1981 | US4297734 Sampled data servo positioning system |
| 10/27/1981 | US4297733 Method of controlling the position of a write or read head and a device for carrying out the method |
| 10/27/1981 | US4297698 360 Degree linear variable phase transformer |
| 10/27/1981 | US4297624 Spindle control system |
| 10/20/1981 | US4295740 Photoelectric docking device |
| 10/20/1981 | CA1111152A1 X-ray apparatus comprising a weight compensation device |
| 10/13/1981 | US4295082 Pulse width modulated servo circuit |
| 10/07/1981 | EP0036880A1 Digital blade adjustment read-out for a portable power tool |
| 10/06/1981 | CA1110359A1 Servo system for track accessing and track following in a disk drive |
| 09/30/1981 | EP0036803A1 Apparatus for determining the position |
| 09/23/1981 | EP0036083A1 Apparatus for controlling and maintaining the heads to track alignment and method and apparatus to compensate steady disturbances in such an apparatus |
| 09/22/1981 | US4291334 System for detecting the position of an object |
| 09/22/1981 | US4291262 Servo positioning apparatus |
| 09/22/1981 | CA1109558A1 Data storage apparatus |
| 09/16/1981 | EP0035900A1 Apparatus for providing a demodulated synchro output signal |
| 09/16/1981 | EP0035580A1 Interferometrically controlled worktable and a position-control device |
| 09/15/1981 | US4289983 Encoder for monitoring bidirectional motion |
| 09/15/1981 | US4289962 Optoelectronic synchro generator |
| 09/15/1981 | CA1109141A1 Sampled data positioning system employing a model of the physical system for time optimal control |
| 09/08/1981 | US4288730 Proportional and integral solenoid armature positioning control system |
| 09/08/1981 | CA1108728A1 Tractor hitch control system having safety features |
| 09/08/1981 | CA1108719A1 Position control apparatus |
| 09/02/1981 | EP0034938A2 A servo system and method for positioning a read/write transducer relative to a storage medium and a recording medium for use in such a system and method |
| 09/01/1981 | US4287460 Positioning control system |
| 09/01/1981 | US4287458 Digital servo control circuit |
| 09/01/1981 | US4287413 Automatic focus servomechanism in optical information reading device |
| 09/01/1981 | US4287411 Apparatus for seeking and following a luminous zone, such as the sun |
| 08/25/1981 | US4286296 Transducer positioning system |
| 08/25/1981 | US4286147 In-focus detecting device |
| 08/18/1981 | US4285015 Method and apparatus for locating a movable servo controlled member during position signal drop-out |
| 08/11/1981 | US4283036 Position memory for automatically adjustable seat assemblies |
| 08/11/1981 | US4282955 Rotary shaft control system |
| 08/11/1981 | US4282711 Hydrostatic transmission control system |
| 08/04/1981 | US4282469 Positioning control system |
| 08/04/1981 | US4282467 Controller system for rotary actuator |
| 07/29/1981 | EP0032660A1 Automatic track following system |
| 07/22/1981 | EP0032312A2 Control system for stopping spindle at predetermined rotational position |
| 07/22/1981 | EP0032301A2 A rotary arrangement comprising a control system for stopping a spindle at a predetermined rotational position |
| 07/21/1981 | US4279192 Electronic compensator for a pneumatic servo controlled load bearing bellows system |
| 07/15/1981 | EP0032045A2 Control system for stopping spindle at predetermined rotational position |
| 07/15/1981 | EP0032029A2 A control system for stopping a spindle at a predetermined rotational position |
| 07/15/1981 | EP0032002A2 Sun following-up device for solar heat utilization apparatus |
| 07/14/1981 | CA1105136A1 Method and means for capturing magnetic tracks |
| 07/09/1981 | WO1981001903A1 A method for recording track marking information on flexible magnetical information carrier discs and apparatus for fine adjustment of the position of a reading head |
| 07/09/1981 | WO1981001896A1 Control apparatus for roll grinders |