Time signal timepiece

Details Time signal timepiece Time signal timepiece

1978-09-20

1980-07-08

Miska, Vit W.

Horology: time measuring systems or devices

Signalling means

Musical

368259, 368273, G04B 2108, G04C 2100

Patent

active

042110645

ABSTRACT:
A time signal timepiece has a timekeeping portion and an electronic sound generating portion. The electronic sound generating portion comprises two counters, two oscillator circuits and a coincidence circuit. The hour signal from the timekeeping portion makes the first oscillator circuit oscillate. The first counter counts the number of hour signals. The second counter counts the number of signals from the first oscillator circuit which determines an interval of a time signal sound. The coincidence circuit has a function to stop an oscillation of the first oscillator circuit by detecting a coincidence of contents of the first counter with that of the second counter. The signal from the first oscillator circuit actuates the second oscillator circuit which determines the frequency of the time signal sound. The second oscillator circuit then generates the number of signals corresponding to the present time and having predetermined interval and frequency.

REFERENCES:
patent: 3728855 (1973-04-01), Preiser
patent: 4055843 (1977-10-01), Whitaker
patent: 4073133 (1978-02-01), Earls et al.
patent: 4090349 (1978-05-01), Takase
patent: 4098071 (1978-07-01), Kawarami et al.

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