Patent ID: 6229765
Filing Date: 2001-05-08
Classification: G04G

Abstract:
An electronic sunrise-dependent timepiece, comprising:an oscillator circuit for generating clock pulses at a predetermined frequency,a clock circuit coupled to the oscillator circuit for generating minutes and hours and calendar data,an offset correction circuit that includes a look-up table storing respective offsets to be added to the hours and minutes data depending on a pre-calculated time of sunrise at a range of calendar data, the offset correction circuit being coupled to the clock circuit for deriving the respective offset from the look-up table and adding the respective offset to the minutes and hours data so as to generate a sunrise-dependent time of day, anda display circuit coupled to the clock circuit for displaying the sunrise-dependent time of day, whereinthe offset derived by the offset correction circuit is an incremental offset that is fixedly added to a currently displayed sunrise-dependent time at predetermined time intervals.