Fraction display apparatus capable of displaying fractions in no

Details Fraction display apparatus capable of displaying fractions in no Fraction display apparatus capable of displaying fractions in no

1993-09-27

1995-09-12

Chin, Tommy P.

Computer graphics processing and selective visual display system

Plural physical display element control system

Segmented display elements

345 50, G09G 304

Patent

active

054500958

ABSTRACT:
A display apparatus used in an electronic calculator with a fraction calculating function is constructed by arranging 8-shaped display members made of 7 segments at upper, intermediate and lower stages, while commonly using some of these display segments. A numerator of a fraction is displayed on the upper-staged display member, a denominator of this fraction is displayed on the lower-staged display member, and a bar thereof is displayed utilizing the intermediate display member, so that the fraction may be displayed in the normal mathematic expression form.

REFERENCES:
patent: 4918428 (1990-04-01), Bebel
patent: 4954977 (1990-09-01), Colombat
patent: 5025403 (1991-06-01), Stephens

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