Salat time alarm electronic timepiece

Details Salat time alarm electronic timepiece Salat time alarm electronic timepiece

1981-10-21

1983-08-02

Truhe, J. V.

Horology: time measuring systems or devices

Astronomical

368 17, 368 18, 368 21, G04B 1926, G04B 4904

Patent

active

043962939

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.

REFERENCES:
patent: 2451639 (1948-10-01), Tellier
patent: 2496826 (1950-02-01), Tellier
patent: 3940859 (1976-03-01), Troseth
patent: 4253169 (1981-02-01), Salah

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