Indicator to data processing interface

Details Indicator to data processing interface Indicator to data processing interface

1984-11-01

1985-12-10

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

178 18, 340365P, 350 65, G09G 100

Patent

active

045583137

ABSTRACT:
An interface and terminal are provided between data processing operations and the movement of an indicator member of stylus. The interface and terminal identifies the coordinates of the position of the stylus by the angles that a light beam reflected from the stylus makes with a reference and uses a history of coordinate data for specific coordinate selection. The stylus position is sensed by interruption of light. The terminal retains and displays a trace of the stylus movement. The interface and terminal are useful both for manual to computer input, and, for remote data processing to mechanical movement, such as in displays and manufacturing operations. Accuracy of the order of 0.01 inches in 12 inches is achieved.

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NASA Technical Note SP 5937, Sep. 1971.

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