Key-operated solid-state timepieces

Details Key-operated solid-state timepieces Key-operated solid-state timepieces

1974-08-15

1982-02-16

Miska, Vit W.

Horology: time measuring systems or devices

Chronological

With manually actuated display

368188, G04C 1700, G04C 900

Patent

active

043162762

ABSTRACT:
A solid-state electronic timepiece in which the output of a high-frequency time base is divided down to produce low-frequency timing pulses that are applied to a display actuator adapted to selectively control a multi-digit electro-optic display to present the "time-of-day" and "seconds" as well as other aspects of time information such as calendar date and month. The actuator also serves to supply roll-over pulses to advance the display at a rapid rate for setting purposes. In order to selectively render the display effective in any one of the several aspects or in the setting mode therefor by means of a singlmdmanually-operated coding key, a mode selector is provided which is responsive to the key and operates in conjunction with the display actuator. Code signals produced by the key are decoded by the logic system to produce command signals that are fed to the actuator to cause the display to operate in the aspect mode to present the desired aspect or to operate in the setting mode.

REFERENCES:
patent: 3810356 (1974-05-01), Fujita
patent: 3823545 (1974-07-01), Vittoz
patent: 3823551 (1974-07-01), Riehl

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