Clock pulse generating apparatus

Details Clock pulse generating apparatus Clock pulse generating apparatus

1977-01-26

1978-07-18

Heyman, John S.

Oscillators

Relaxation oscillators

328 48, 58 23R, 58 23AC, 331 16, 331 51, 307269, H03K 372, H03K 116

Patent

active

041018389

ABSTRACT:
A clock pulse generating apparatus comprises a pulse generator for generating a pulse signal of a predetermined cycle, a frequency divider including a plurality of frequency division stages for frequency dividing an output pulse from the pulse generator, a circuit for subtracting at a predetermined ratio the number of clock pulses passing through a given frequency division stage in the frequency divider, a pulse control circuit including an external operation terminal for variably adding the number of pulses passing through another frequency division stage in the frequency divider, and a timing setting circuit for imparting a pulse subtracting timing and pulse adding timing to the pulse subtracting circuit and pulse control circuit, respectively.

REFERENCES:
patent: 3192478 (1965-06-01), Metz
patent: 3729623 (1973-04-01), Kelling
patent: 3952254 (1976-04-01), Kurita et al.
patent: 3978649 (1976-09-01), Naito
patent: 3988597 (1976-10-01), Yamaguchi
patent: 4009445 (1977-02-01), Hasegawa

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