Adjustable circuit for an electronic timepiece

Details Adjustable circuit for an electronic timepiece Adjustable circuit for an electronic timepiece

1976-07-23

1978-02-28

Jackmon, E. S.

Oscillators

Relaxation oscillators

328 55, 331177R, G04C 300, H03K 5159, H03B 304

Patent

active

040758273

ABSTRACT:
An adjustable circuit for an electronic timepiece including a crystal oscillator, a frequency divider circuit, a display and a controlable means for increasing and decreasing the output frequency of the frequency divider circuit. The increasing and decreasing means includes a digital adder and a digital subtractor and a plurality of controlable gates for enabling the digital adder or subtractor to increase or decrease the output frequency of the frequency divider.

REFERENCES:
patent: 3841081 (1974-10-01), Komaki
patent: 3967442 (1976-07-01), Berney

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