| Document |
Document Title |
|
WO/1989/001725A1 |
A motorised fader for audio or lighting controls includes a manually adjustable slider (10; 36), a linear magnetic motor with an elongate electromagnetic coil (20; 39, 40) extending over the length of movement of the slider, and a powerf...
|
|
WO/1989/001267A1 |
An image scanner is disclosed which utilizes a dither plate (30, 32) to steer an image onto a sparsely-populated image sensor (24, 26, 28) in order to effectively fill in the gaps between photosites. A DC motor (34, 36), which is respons...
|
|
WO/1989/000725A1 |
An XYZ positioner is disclosed. The XYZ positioner provides for positioning an XY (6, 25, 26) or an XYZ (6, 10, 12, 25, 26) orientation and has a wide range of applications, such as in the medical field, for dispensing (9, 15, 8) various...
|
|
WO/1988/009945A1 |
The invention provides a positioning apparatus for accurately positioning one part of a device relative to another and is designed to be vacuum compatible for use in vacuum chambers at ultra-high vacuum. To achieve this, no lubrication i...
|
|
WO/1988/008563A1 |
A servo control circuit suppresses an incompletely integrated term contained in the integrated gain in a speed feedback loop of a speed control block (5) at a moment when a deviation between a position signal from a machine system and a ...
|
|
WO/1988/008477A1 |
A process for regulating the speed of rotation of an alternating current electric motor between two extreme angular positions of the rotor is characterized in that, on commissioning, the theoretical member (N) of complete periods (T) of ...
|
|
WO/1988/006789A1 |
Excessive actuator speed and damaging head crashes are prevented in a disk drive servo system by providing a velocity safety circuit comprising a velocity detector (1), velocity threshold comparator (2), latch (3), power disable unit (4)...
|
|
WO/1988/005933A1 |
A position servo system for positioning a member (58) mounted on a spring (57). The spring (57) provides a force opposing the motion of the member (58) from an initial position. A position actuator, for example a motor (28), applies a fo...
|
|
WO/1988/005935A1 |
A numerical control method capable of rapidly and repetitively reciprocating an object to be controlled over the range from one position to the other inclusive of both positions by compensating the delay in the follow-up operation in the...
|
|
WO/1988/004445A1 |
A numerical controller which reliably liberates the positional precision from the effect of static friction and dynamic friction applied as disturbance to the servo loop in the case when a servo system is constructed in the form of a sem...
|
|
WO/1988/004446A1 |
A servo motor controller wherein positioning response lag caused by backlash or friction is improved. The NC apparatus and the robot controller send a position command (MC(i)), a backlash correction command (BL(i)) and a backlash correct...
|
|
WO/1988/003678A1 |
A position control system having a speed control loop that finds a speed deviation between a commanded speed and the actual speed and generates a torque command signal of the motor from the speed deviation. The system has a command divid...
|
|
WO/1988/003677A1 |
A digital servo system capable of quickly bringing an object having a small frictional resistance into halt at a position where it is to be stopped without generating vibration. A velocity command generation means (3) calculates a veloci...
|
|
WO/1988/003282A1 |
A negative feedback control system includes a control that increases or decreases a controlled variable by amplifying digital data resulting from negative feedback on the basis of a quickly responding operation that does not include inte...
|
|
WO/1988/002141A1 |
A method of removing follow-up delay in a full-close feedback NC system, wherein an instruction signal is corrected in the following manner when the direction of movement is inverted. That is, when a backlash quantity in the mechanical s...
|
|
WO/1988/002140A1 |
A method of removing follow-up delay using a digital servo system in a full-close feedback NC system, in which a position instruction is received from an NC controller (11), and in which a speed instruction (12) and a torque instruction ...
|
|
WO/1988/000368A1 |
In an assembly line where robots are put into practical use, a robot control apparatus of the invention calculates and stores in advance the weights and inertia of many works held by the hand of a robot. Whether the robot's hand is holdi...
|
|
WO/1988/000003A1 |
Agricultural vehicles have heretofore lacked an adaptive implement hitch control and have correspondingly suffered from poor controllability of the hitch when the mass of the implement is varied significantly. The apparatus (10) employs ...
|
|
WO/1988/000369A1 |
A robot control apparatus stores the result of operation on the inertia term of an equation of motion depending upon the position of the robot arm, so that the operation period on the inertia term is set longer than the operation period ...
|
|
WO/1987/007686A1 |
Means for the position servo-control of a pneumatic cylinder (14) comprising a circuit (20) for the control of the cylinder supply distributor (10), and a position sensor (30) and an acceleration transducer (34) which are associated with...
|
|
WO/1987/007404A1 |
A positioning system which permits a servo motor (4) to run depending upon an instruction value to move a movable part, and which compares a feedback signal from a position detector such as a servo motor with the instruction value to pro...
|
|
WO/1987/007419A1 |
A system for remote transmission of the angle of rotation and of the force between driving and driven shafts conprises a driving and driven synchronous machines (1, 2), pick-ups (9, 10) for detecting the positions of the shafts of which ...
|
|
WO/1987/005721A1 |
This invention relates to a robot controller employing a simply constructed controller which performs feed forward compensation with nonlinear torque. Servo CPU's (c1, c2) provided for each of a plurality of drive axes (1, c2) of a robot...
|
|
WO/1987/004276A1 |
An electrical motor system in which a microcomputer (11) controlled driver (39) monitors the real time operating parameters of the motor (1) to keep the real time operating parameters of the motor (1) in a range that is governed by limit...
|
|
WO/1987/002498A1 |
In order to improve servo system stability and decrease settling times in rotary head positioners for high performance magnetic disk drives, a floating mass damper (46) is mounted on the end of an accessing head arm structure (22-27) of ...
|
|
WO/1987/000968A1 |
A positioning table comprises: a single-bed table (11) supported so as to be rotatable and linearly movable within a plane; and feed means (18, 23, 28) for three axes, different in direction from each other, which are reciprocatable alon...
|
|
WO/1986/005009A1 |
To precisely detect the position of a mechanically moving portion which is driven by a motor, restraining the effect of backlash. A position detector (3) produces a position detection pulse every time after a mechanically moving portion ...
|
|
WO/1986/004317A1 |
Controlling arrangements of the type used for aligning a load engaging assembly with a load to be lifted tend to be bulky, costly, unable to accurately position the load engaging assembly with the load to be lifted, and unable to accommo...
|
|
WO/1986/003854A1 |
In a drive control system for servo motors, an operation processing unit (11) and a servo motor (10) are arranged being physically separated from each other, and the data are exchanged through a data bus (14) between the operation proces...
|
|
WO/1986/003249A1 |
A sliding door or the like (10) driven by a motor (16) is controlled by the use of a motion detector (25) coupled with the door. Pulses from the motion detector are counted by control circuitry, and the door is moved at a reduced speed i...
|
|
WO/1986/002470A1 |
A work coordinate system constituting a programming reference is determined with respect to a mechanical coordinate system, and NC program data, which include at least NC data for determining an angle r between the origin (WR) in the wor...
|
|
WO/1986/002216A1 |
A counter apparatus which counts the number of pulse signals and outputs on ON/OFF state previously stored at an address corresponding to the count thereof. When a signal corresponding to a set mode is output from a mode changeover devic...
|
|
WO/1986/000728A1 |
A system for returning to the point of origin, a mechanical moving part equipped with a dog. The mechanical moving part is, first, moved in the direction of the dog. When a switching signal (SD)caused by the dog is detected, the mechanic...
|
|
WO/1986/000430A1 |
The apparatus for detecting the absolute position of a servo control system consists of a servo system including a servomotor (105) which is adapted to control the movement of a movable element (112), a first absolute encoder (106a) adap...
|
|
WO/1986/000401A1 |
A device for detecting absolute position employs a resolver (106) as position detector means. An interpolated error corresponding to the rotational angle of the rotary shaft of the resolver (106) is stored in advance in a data memory whi...
|
|
WO/1986/000415A1 |
A device is disclosed for the detection of the angular position of a rotary member presenting at its periphery angle marks (11), respectively teeth, at least one angle mark and/or one interval between two angle marks being distinct in or...
|
|
WO/1985/005198A1 |
A method of controlling first and second arms (11), (12) of a multi-joint robot, in which the first arm (11) is supported pivotably on a robot body (1) via a first joint with the second arm (12) supported pivotably on the first arm (11) ...
|
|
WO/1985/003368A1 |
Method and apparatus for calibrating a positioning system including a control computer (1405) for producing command value signals to a positioning apparatus which positions an object against a work surface. Sensors (1406, 1407) detect th...
|
|
WO/1985/001806A1 |
A novel technique and associated arrangement for determining the noise-free value of a system parameter which is time variable and has a noise component as detected. The technique involves processing the noise-including value and passing...
|
|
WO/1985/001810A1 |
Thermostatic control device (1) of the type comprising a hollow capsule (2) filled with a product (17) of which the volume varies as a function of the temperature and a piston (9) adapted to transform the volume change of said product in...
|
|
WO/1985/001605A1 |
Improvement in a tracking servo circuit which controls the tracking of an optical pickup on an optical disk in an apparatus for reproducing a sound or image recorded on the optical disk. The tracking servo circuit is provided with means ...
|
|
WO/1985/001379A1 |
A disk storage system comprising a rotatable disk (10), a cooperating magnetic head (18), positioning apparatus (24, 26) for positioning the head at different radial positions of the disk for reading and/or writing data on the disk, a ba...
|
|
WO/1985/001234A1 |
A profiling control method which makes it possible to reduce machining time and to reduce wear on a cutter (CT) where profiling is effected by a stylus (ST) following a recess in a model (MDL). In this method, the clamp level is successi...
|
|
WO/1985/000445A1 |
A device for sensing contact between a mechanism or device and an object, in which an accelerometer (1) is attached to a support (2) for the object, such as a sheep (3), the output signal from the accelerometer being connected to a vibra...
|
|
WO/1985/000458A1 |
Damaging head crashes are prevented in a disk drive system by providing a specially chosen RC network between the head position control servo (12) and the head actuator (10). The values of the RC network are chosen in conjunction with th...
|
|
WO/1984/004981A1 |
A positional loop gain control method in which a positional control feedback system composed of a speed control circuit (101c), a spindle motor (102), a position coder (104), a fixed-position stop control unit (101e), and a changeover sw...
|
|
WO/1984/004978A1 |
A system for numerically controlling a device such as a machine tool employs a general-purpose motor (11) in a part thereof, instead of a servo motor. In this system, the current position of a shaft (10) which is driven by the general-pu...
|
|
WO/1984/004182A1 |
This position-controlling apparatus is able to increase servo rigidity when an operation is suspended. When controlling the suspension of an operation at a fixed position, a positional error signal (ER) obtained by the D/A conversion of ...
|
|
WO/1984/004006A1 |
A servo control circuit, which is employed to drive a servo motor at a commanded speed and torque, is provided with a servo motor voltage supply circuit, a servo motor drive current detection circuit, a servo motor revolution detector, a...
|
|
WO/1984/003779A1 |
A method of generating a speed command signal which is delivered to a servo motor control unit in a position control apparatus. A given position command signal is applied to a low-pass filter (4) either directly or through a linear accel...
|
