Patents for G05D 3 - Control of position or direction (13,741)
07/1979
07/25/1979EP0003070A1 Sampled data positioning system employing a model of the physical system for time optimal control
07/25/1979EP0003025A1 Rotational gear or lifting gear drive control arrangement for a crane
07/17/1979US4161678 Servo-system
07/17/1979US4161652 System for optically aiming a laser beam on to a target
07/17/1979US4161649 Multimode electronic brake monitor system
07/03/1979US4160199 Line or pattern following system
07/03/1979US4159710 Solar collector comprising solar tracking means
06/1979
06/26/1979US4159474 Depth indicating means for a tractor supported tool
06/19/1979US4158768 Bi-axial scanning device for following the outline of a template
06/19/1979CA1056933A2 Method and apparatus for handling linear elements
06/13/1979EP0002417A1 System using digital signals to control the position of a moving part and digital-analog interface for use in such a system
06/12/1979US4158162 Time-proportioning control system for earth-working machines
06/12/1979CA1056478A1 Digital to analog converter with system gain insensitivity
06/05/1979US4157577 Rotatable storage apparatus with digitally responsive circuitry for track selection
06/05/1979US4157489 Servo control system
05/1979
05/30/1979EP0002133A1 Positioning servo mechanism
05/29/1979CA1055564A1 Adaptive control circuit for a stepping motor
05/22/1979US4156169 Servo control apparatus
05/22/1979US4155829 Apparatus for regulating anode-cathode spacing in an electrolytic cell
05/22/1979US4155650 Micro-article processing system
05/15/1979US4154219 Prismatic solar reflector apparatus and method of solar tracking
05/01/1979US4152736 Magnetic disk file
05/01/1979US4152734 Automatic tracking for a playback transducer
05/01/1979CA1053646A1 Actuating device
04/1979
04/24/1979US4151570 Automatic scan tracking using a magnetic head supported by a piezoelectric bender element
04/24/1979US4151519 Protective circuit for compass repeater amplifier systems
04/24/1979US4151451 Graphic input controlled automatic positioning system
04/10/1979US4149118 Electronic control and regulation system
04/04/1979EP0001297A1 Positioning device for at least two adjusting mechanism, especially for car seats
04/03/1979US4147968 Stepper motor control
04/03/1979US4147967 Apparatus and method for controlling the velocity of a moveable member
03/1979
03/27/1979US4146797 Device for detecting the position of web side edge
03/13/1979US4143605 Motor driven sewing machine
03/06/1979US4143310 Apparatus for positioning
03/06/1979US4142794 Step and repeat system
03/06/1979CA1050102A1 Circuit arrangement for phase-alignment of a servo drive for a rotary system
02/1979
02/20/1979US4140952 Offset compensated electronic current sensor and controller
02/13/1979US4139831 Control for electrical positioning drives
02/13/1979US4139811 Method and means for increasing the stiffness of limited frequency servo systems
02/13/1979US4139290 Lens stop auxiliary brake control device in automatic exposure camera of the lens stop value control type
02/06/1979US4137707 Integrated control system for a gas turbine engine
01/1979
01/30/1979US4136962 Apparatus for orienting and maintaining the orientation of construction equipment
01/30/1979CA1047607A1 Overlapped signal transition counter
01/23/1979CA1046823A1 Double focusing microscope for registering semiconductor wafers and masks
01/10/1979EP0000261A1 Positioning system employing feedforward and feedback control
01/09/1979US4134106 Absolute resolver angle to digital converter circuit
01/09/1979US4134053 Method and means for capturing magnetic tracks
01/02/1979US4133011 Sampled data positioning system employing a model of the physical system for time optimal control
01/02/1979US4132939 Driving signal control circuit
01/02/1979US4132937 Programmable manipulator with dynamic feedback apparatus for stabilization
01/02/1979US4132273 Tractor hitch control system having safety features
01/02/1979US4132152 Closed loop electro-fluidic control system
01/02/1979CA1045701A1 Controlled trolling apparatus
01/02/1979CA1045683A1 Self-adjusting target tracking system
12/1978
12/26/1978US4131839 System for multistation remote position indication and control
12/19/1978US4130844 Method and means for tracking magnetic tracks
12/19/1978US4130183 Control system for selective positioning of a displaceable device
12/12/1978CA1044007A1 Method and apparatus for determining positions of objects
11/1978
11/28/1978US4127777 Method for automatic adjustment
10/1978
10/24/1978US4122503 Positioning system and method particularly useful for magnetic disk drives
10/17/1978US4121265 Temperature compensation for data storage apparatus
10/17/1978US4121097 Photoelectrically controlled line follower apparatus
10/17/1978US4120364 Automatic control device for tractor mounted tools
10/17/1978CA1040740A1 Track following servo system
10/03/1978US4118705 Adaptive interface for rotational positioning device utilizing linear actuators
09/1978
09/26/1978US4117386 Digital continuous potentiometer servo feedback element
09/26/1978US4117341 Control means
09/26/1978US4116321 Valve arrangement for closed-loop control system
09/26/1978US4116000 Engine control system
09/19/1978US4115823 Track following servosystem for data storage apparatus
09/12/1978CA1038475A1 Object positioning apparatus
09/05/1978US4112343 Bidirectional self balancing bridge
09/05/1978US4112291 Positioning system in a numerically controlled apparatus
08/1978
08/29/1978US4110799 Servo system for controlling the position of a magnetic head relative to a track to be followed using periodically interrupted long-wave positioning signals
08/29/1978US4110675 Return and position control for a DC servo system
08/29/1978US4110627 Detecting lateral position of webs
08/22/1978US4109191 Rotator with remote indicator and self-synchronization
08/22/1978US4109190 Circuit for increasing the operating speed range of a velocity servo system
08/22/1978US4109185 Servo system employing digital components
08/22/1978US4109142 Process data tracking system
08/22/1978US4108499 Method and control system for controlling a suspended implement
08/22/1978US4108019 Solar tracking device
08/22/1978CA1037125A1 Digital radio control
08/22/1978CA1036987A1 Control system for selective positioning of a displaceable device
08/15/1978US4107590 Power assist device using strain responsive means
08/08/1978US4106065 Drive circuitry for controlling movable video head
08/08/1978US4105940 Position control device
08/01/1978US4104573 Speed control device for a moving member
08/01/1978US4104572 Servo system temporary destabilization circuit and method
07/1978
07/25/1978US4103314 Motion control system
07/25/1978US4103215 Torque repeater self-driver
07/18/1978US4101774 X-ray system having a driving mechanism for an x-ray source and an x-ray detector
07/04/1978US4099159 Light signalling device for bicycles
07/04/1978US4099114 Servo stop system
07/04/1978US4099113 Numerical control servo system
06/1978
06/20/1978US4096476 Reading system for a code disk analog-to-digital converter and an absolute value detector
06/20/1978US4096426 Non-linear error signal attenuator for servo system
06/13/1978US4095275 Pulse width modulated sine cosine generator
06/13/1978US4095158 Position-controlling system
06/06/1978US4093885 Transducer assembly vibration sensor