Electronic timepiece with hourly strike mechanism

Details Electronic timepiece with hourly strike mechanism Electronic timepiece with hourly strike mechanism

1978-03-06

1980-11-18

Miska, Vit W.

Horology: time measuring systems or devices

Chronological

With simultaneous time indicating means

368272, 340384E, G04B 2100, G04B 2102, G08B 300

Patent

active

042349451

ABSTRACT:
An electronic timepiece having an acoustic hour information function in which a photosensitive switch mechanism essentially comprising a photosensitive element is provided to detect a quantity of light below a predetermined value in the surrounding environment where the timepiece is placed and control the acoustic hour information function of the timepiece depending upon the detected result.

REFERENCES:
patent: 4055843 (1977-10-01), Whitaker
patent: 4073133 (1978-02-01), Earls et al.
patent: 4090349 (1978-05-01), Takase
patent: 4098071 (1978-01-01), Kawakami et al.

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