Frequency adjustment circuit

Details Frequency adjustment circuit Frequency adjustment circuit

1976-05-17

1978-01-17

Jackmon, Edith S.

Oscillators

Relaxation oscillators

58 23R, 328129, 331175, G04C 300, H03F 100

Patent

active

040684628

ABSTRACT:
A circuit for adjusting the frequency of operation of an electronic time keeping device, which device includes a source of clock pulses. The circuit of this invention is preferably located between the source of clock pulses and the time keeping device counting circuitry, so that the clock pulses can be periodically interrupted for a programmed amount of time. Accordingly, the variable adjustment capacitor, typically employed in prior art time keeping devices, can be eliminated.

REFERENCES:
patent: 3756014 (1973-09-01), Zatsky
patent: 3852951 (1974-12-01), Sauthier
patent: 3895486 (1975-07-01), Hammer

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