Patent ID: 6233204
Filing Date: 2001-05-15
Classification: G04G

Abstract:
A device for dynamically displaying universal time comprising:a flat rectangular board having a rectangular frame, a front panel inserted in the frame and a back cover hinged to a rear side of the frame;said front panel having a universal date display column and a universal hour display column parallel to and adjacent the frame from left to the right margin of the front panel, each including 25 display windows confronted with 24 time zones of the world for inserting therein a plurality of LEDs to dynamically display the change of dates and hours around the world;a local display column at an appropriate position of a lower portion of said front panel for inserting therein a plurality of LEDs to dynamically display the hour, minute and second of the local time, wherein the LEDs are a binary numbering structure and connected with and operated by a plurality of IC boards, a CPU board and a control device disposed in series to a back side of the front panel;a world map attached to the front side of the front panel including all of the countries and major cities in the world, said map being compiled with the Mercator Equator Projection having 24 time zones divided by a set of longitudes of 15 degrees interval, said time zone being designated with letters of alphabet at a lower end with the time zone M/Y in which the International Date Line is centered being doubly widened to coinside with a pair of display windows of said universal date display column and said universal hour display column and longitude denoted below the alphabet numbers for the central maridian of each odd numbered time zone;a first transparent color applied to a color block at an upper end of each odd numbered time zone and a second transparent color applied to a color block at an upper end of each even numbered time zone and tinting said transparent colors respectively to those countries and/or regions located within said corresponding time zones;a third transparent color applied to the countries and regions whose standard time differ from the time zone by a fraction of an hour;a symbol of appropriate color adapted to label countries who adapt Summer time (Daylight saving time) or Winter time;a legend for describing the above data positioned at lower corner of said world map.