초록 ▼

A time display system has a decoder (22) to decode a received time signal indicative of the time at that instant, and controls a time display device (8) to display the time indicated by the time signal. The system also includes means (20) to generate a position signal indicative of the actual time d

A time display system has a decoder (22) to decode a received time signal indicative of the time at that instant, and controls a time display device (8) to display the time indicated by the time signal. The system also includes means (20) to generate a position signal indicative of the actual time displayed by the display device (8). The decoded time signal and the position signal are compared by a comparator (21) and if they differ, a time adjust signal is generated by time adjustment means (14) to correct the displayed time. Preferably, the time signal is a high frequency signal modulated with time data.

대표청구항 ▼

A time display system for receiving at spaced instants of time, a time signal indicative of the time at that instant, and for controlling an analogue time display device having hands operable by a motor so as to indicate said time at said instant, said system comprising a decoder to said time signal

A time display system for receiving at spaced instants of time, a time signal indicative of the time at that instant, and for controlling an analogue time display device having hands operable by a motor so as to indicate said time at said instant, said system comprising a decoder to said time signal, a position means adapted to generate a position signal indicative of the time displayed by said time display device, a comparator means connected to said decoder and said position means to detect the difference, if any, between the time according to said time signal and said displayed time, first offset means connected to said comparator means to provide a first predetermined offset between the time according to said time signal and said displayed time whereby said displayed time corresponds to a time zone determined by said first offset, and a second offset means connected to said comparator means to provide a second offset at a predetermined time whereby said displayed time is corrected for any daylight saving in said time zone, and time adjustment means to apply a time adjust signal to said time display device to reduce said difference to zero and apply said first and second offsets, said time adjust signal having an initial and a final portion in which the rate of time adjustment of said time display device is slowed from a maximum rate corresponding to that portion of said time adjust signal intermediate said initial and final portions.