Analogue alarm electronic timepiece

Details Analogue alarm electronic timepiece Analogue alarm electronic timepiece

1980-02-25

1982-11-09

Roskoski, Bernard

Horology: time measuring systems or devices

Signalling means

Time condition responsive

368 74, G04C 2116, G04C 2314

Patent

active

043588409

ABSTRACT:
An analogue alarm electronic timepiece has electronic circuitry for controlling the drive of the time-indicating hands by a reversible stepping motor to selectively position the hands at desired alarm time and display time settings. Externally operable switches control the operation of the electronic circuitry and enable re-positioning of the hands by the motor to the previously set alarm time so that the user of the timepiece may confirm the alarm time setting. The electronic circuit includes a first settable memory means for storing the time difference between the alarm time and the present time, and a second settable memory means for storing the time difference between the present time and the display time. First means are provided for detecting coincidences between the alarm time and the present time. Second means are provided for detecting coincidence between the present time and the display time.

REFERENCES:
patent: 3775967 (1973-12-01), Spadini
patent: 4040248 (1977-08-01), Laesser
patent: 4196583 (1980-04-01), Komaki
patent: 4205519 (1980-06-01), Deruns
patent: 4223523 (1980-09-01), Kamijo
patent: 4253172 (1981-02-01), Nomura

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