Device for setting a numeric display

Details Device for setting a numeric display Device for setting a numeric display

1983-11-10

1987-03-17

Curtis, Marshall M.

Communications: electrical

Continuously variable indicating

With meter reading

368 85, 368185, 368225, 368231, 340809, G09G 300

Patent

active

046511474

ABSTRACT:
A device for setting a numeric display (11) comprises a continuously turnable potentiometer (12) by which the setting area can be repeatedly passed through by turning in the same direction. The potentiometer and the display are connected to a computer (10), preferably a microcomputer. The computer is arranged to repeatedly sense the instantaneous resistance value of the potentiometer or a parameter representing said value. Further, the computer is arranged to store the first one (T.sub.1 high) of a series of measurement values and for each subsequent measurement value (T.sub.2 high) in the series to determine if the difference between the present and the first measurement value exceeds a reference value (T.sub.diff), in which case the display (11) is operated to increase or decrease its value by one step of a predetermined magnitude.

REFERENCES:
patent: 3733810 (1973-05-01), Girard
patent: 3789387 (1974-01-01), Hurst
patent: 4091612 (1978-05-01), Meisner et al.
patent: 4193686 (1980-03-01), Klank
patent: 4247845 (1981-01-01), Schmidt et al.
patent: 4282513 (1981-08-01), Meisner et al.
patent: 4400093 (1983-08-01), Jaunin
patent: 4549173 (1985-10-01), Nakamura

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