Alarm timepiece with facilities of providing precausionary alarm

Details Alarm timepiece with facilities of providing precausionary alarm Alarm timepiece with facilities of providing precausionary alarm

1980-07-24

1985-10-01

Miska, Vit W.

Horology: time measuring systems or devices

Signalling means

Time condition responsive

G04C 2116

Patent

active

045442835

ABSTRACT:
An alarm timepiece is capable of providing an alarm sound twice, one time well before the announcement time and the other at sharply the alarm announcement time. The alarm time-piece includes a first register for storing preset points in time in which to actuate the main alarm; a second register for storing a given length of preparatory time a decision circuit for determining when provide a precautionary alarm as well as the subject alarm time through calculation on said preset points in time, updated time of day and the preparatory period. The calculation is executed through the use of an adder/subtractor and comparator.

REFERENCES:
patent: 3999050 (1976-12-01), Pitroda
patent: 4162610 (1979-07-01), Levine
patent: 4234944 (1980-11-01), Komaki et al.
patent: 4255803 (1981-03-01), Sekine
patent: 4276541 (1981-06-01), Inoue et al.

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