Electricity: motive power systems – With signals – meters – recorders or testing devices
Patent
1980-01-24
1981-05-05
Dobeck, B.
Electricity: motive power systems
With signals, meters, recorders or testing devices
318565, 340366CA, 324121R, G06F 314
Patent
active
042661692
ABSTRACT:
An electromechanical control device for displacing and positioning an object such as a marker on a cathode ray tube screen has at least one control column normally biased in a central rest position which is manually displaceable against the bias in directions corresponding to coordinate axes on the screen. Displacement of the column operates a slide potentiometer which supplies an input voltage to a voltage controlled oscillator which produces an output pulse train which controls movement of the object to be displaced. The object to be displaced moves to a final position with a velocity determined by the amount of displacement of the control column. The final position of the object is achieved by incremental step movements of the column, with column movement controlling velocity and direction of movement only, with magnitude being controlled by an operator. A post-connected counter maintains the object in a specified position after release of the displacement column, thereby freeing an operator's hands while still maintaining the object in the desired position.
REFERENCES:
patent: 3760405 (1973-09-01), Ishii et al.
patent: 3795013 (1974-02-01), McKinley
patent: 3909691 (1975-09-01), Wilson et al.
patent: 4009464 (1977-02-01), Grimes et al.
patent: 4204144 (1980-05-01), Hill
Holzler Georg
Knoche Jochem
Dobeck B.
Siemens Aktiengesellschaft
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