Multi-level display for small computer

Details Multi-level display for small computer Multi-level display for small computer

1989-09-14

1990-06-19

Malzahn, David H.

Boots, shoes, and leggings

G06F 314

Patent

active

049358898

ABSTRACT:
A display system for a compact electronic apparatus uses a multi-level display means with a plurality of display lines. When the result of a computation is not displayed, all these display lines are available for displaying a computation expression. When the result of a computation is desired, that portion of the expression on the line on which the result of the computation is displayed is cleared. As a result, the user may be able to see the entire expression at a single glance and distinction between the expression and the result of the computation is clear so as to prevent misrecognition by the user.

REFERENCES:
patent: 4044242 (1977-08-01), Laesser
patent: 4138734 (1979-02-01), Nakata et al.
patent: 4386412 (1983-05-01), Ito
patent: 4481598 (1984-06-01), Ishiwata
patent: 4580235 (1986-04-01), Yanagawa

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