Salat time alarm electronic timepiece
AssigneeSharp Kabushiki Kaisha
InventorTakatoshi Mizoguchi
Life of this patent
Estimating the term…
Abstract
A salat time alarm electronic timepiece is implemented with a one chip microcomputer. An outer read only memory is installed in the electronic timepiece for storing the sunrise time data and the sunset time data at various cities in world. The system reads out sunrise time and sunset time data from the outer read only memory and calculates five salat times of the present day. The thus calculated salat time data is stored in a storage means and compared with the current time data to provide an alarm sound when the current time reaches one of the five salat times.
Claims10
A salat time alarm electronic timepiece comprising:
- current time keeping means for storing current time data and current calendar data;
- main memory means for storing sunrise time and sunset time data associated with various cities in in the world;
- city selection means for selecting a desired city from said various cities in the world;
- date determining means for determining date data representative of the actual date;
- read out control means for reading out said sunrise time and sunset time data stored in said main memory in response to output signals derived from said city selection means and said date determining means;
- calculation means for calculating a plurality of salat times through the use of the data read out by said read out control means;
- salat time storage means for storing the plurality of salat times obtained by said calculation means;
- comparison means for comparing the plurality of salat times stored in said salat time storage means with said current time data stored in said current time keeping means and for developing a detection output when the current time reaches one of said plurality of salat times;
- and
- alarm means for providing an alarm display in response to said detection output developed from said comparison means.
Dependencies are inferred from the claim text.