Zone time display clock

Details Zone time display clock Zone time display clock

1974-11-14

1976-03-02

Miller, Jr., George H.

58 4A, 58 50R, G04B 1922

Patent

active

039409201

ABSTRACT:
A zone time display clock having a zone or locality appointing and displaying means having a form of a world map and provided with touch detecting terminals disposed on the world map and with zone illuminating means for illuminating the designated zone. The clock further comprises a reference clock, a time difference generating circuit for generating the time difference signals for the designated and the "home" localities with respect to the reference locality alternately, touch switch means for memorizing a touched place in the world map and activating the zone displaying means and the time difference generating circuit, time and date difference calculating means for calculating the time and the date difference for the designated locality with respect to the "home" locality, and display driving means for displaying the time and the date difference or the date for the designated locality.

REFERENCES:
patent: 3186158 (1975-06-01), Miller
patent: 3653204 (1972-04-01), Miwa

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