Digital watch

Details Digital watch Digital watch

1978-10-20

1981-01-13

Weldon, Ulysses

Horology: time measuring systems or devices

Chronological

With electro-optical display

368 84, 368239, 368242, G04C 1900

Patent

active

042453372

ABSTRACT:
A digital watch including a clocking signal generator is disclosed wherein a control circuit provides phasing signals for multiplexing data representing seconds, minutes, hours, and date information in successive cycles to a visual display panel. In the normal mode of operation of the watch, minutes and hours are displayed. The watch further includes circuitry for selectively displaying seconds and date information as well as for setting the hours, minutes, and date. The aforementioned functions require the utilization of only three functional switches which may be incorporated into a stem of the watch. By selectively closing and opening one switch, as for example, pushing in and releasing the stem, seconds information is first displayed and then the date information is momentarily displayed for a predetermined interval after which the watch returns to a normal mode of operation of displaying hours and minutes.

REFERENCES:
patent: 3781864 (1973-12-01), Fujita
patent: 3881311 (1975-05-01), Hama et al.
patent: 3961840 (1976-06-01), Morokawa et al.
patent: 4079369 (1978-03-01), Fukumoto

Affiliated with

Also associated with

Rating

Digital watch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital watch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital watch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2234961