Method and apparatus to digitally display the time of day

Details Method and apparatus to digitally display the time of day Method and apparatus to digitally display the time of day

1980-12-02

1984-05-15

Weldon, Ulysses

Horology: time measuring systems or devices

Displays or display device details

Optical

368241, 368242, 368 82, 368 83, G04C 1702

Patent

active

044485441

ABSTRACT:
A simplified dual format time display provides easy-to-read "count up" and "count down" digital readouts which indicate either the hour and the minutes after the hour or the next hour and the minutes before the next hour using conventionally positioned hour and minute digits of substantially equal size. In the "count down" mode, a minus sign appears immediately to the left of the minute digits to provide a readily interpreted algebraic representation of the number of minutes which must yet elapse before the next hour arrives.

REFERENCES:
patent: 4194352 (1980-03-01), Terzian
patent: 4264966 (1981-04-01), Terzian

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