Patent
1976-06-28
1978-08-15
Schaefer, Robert K.
G04B 1924
Patent
active
041062817
ABSTRACT:
Optical displays for electronic watches or clocks use LED or LCD optical elements at the numbered positions on the watch or clock face to present time and other information from the electronic circuitry. Embodiments having 12 optical elements energize appropriate elements to show hour and 5 minute positions directly with time coding distinguishing between them. These embodiments also include apparatus to energize the optical elements in various time and space patterns to show the number of minutes the time is from the indicated five minute position. Another embodiment using six optical elements shows hour and 5 minute positions alternately by energizing two adjacent elements to indicate the intermediate positions. Still another embodiment uses four optical elements to show hour and 5 minute positions alternately with a special space and time code for other than quarterly positions, and further to show minute and second information on demand. The embodiment also includes controls to trigger animated display patterns for visual alarm or alert signaling.
REFERENCES:
patent: 3540209 (1970-11-01), Zatsky et al.
patent: 3596462 (1971-08-01), Hayes
patent: 3630015 (1971-12-01), Lehovel
patent: 3750384 (1973-08-01), Miller et al.
patent: 3757511 (1973-09-01), Burgess et al.
patent: 3823549 (1974-07-01), Feldman
patent: 3849978 (1974-11-01), Davis
patent: 3959963 (1976-06-01), Murrell
patent: 4007583 (1977-02-01), Johnson
Miska Vit W.
Schaefer Robert K.
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