Fully bi-directional digital time displays

Details Fully bi-directional digital time displays Fully bi-directional digital time displays

1985-05-16

1986-12-09

Roskoski, Bernard

Horology: time measuring systems or devices

Displays or display device details

Optical

368 82, G04C 1700

Patent

active

046277374

ABSTRACT:
Fully bi-directional and quantitative digital time displays are provided by displaying increasing elapsed minutes during the first half hour together with seconds increasing from zero to fifty nine during each such minute and thereafter, during the second half hour, displaying decreasing minutes remaining until the next hour together with seconds decreasing from fifty nine to zero during each such minute. The appearance and comprehendibility of the displays are enhanced by adopting thirty minutes and thirty seconds after each current hour as a predesigned point of transition from the time past to the time remaining modes, by suppressing all leading zeros, by spacing single minute digits as far as possible away from a central hours display, by suppressing zero minute displays above hockey stick-shaped underscore lines during the final minute before and after each hour, and by suppressing hockey stick and zero minute and seconds displays while displaying solely hour digits at the exact moment of completion of a current hour and commencement of the next one.

REFERENCES:
patent: 4194352 (1980-03-01), Terzian
patent: 4264966 (1981-04-01), Terzian
patent: 4270196 (1981-05-01), Terzian
patent: 4271497 (1981-06-01), Terzian
patent: 4483628 (1984-11-01), Terzian

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