Variable frequency digital oscillator

Details Variable frequency digital oscillator Variable frequency digital oscillator

1976-02-17

1977-01-04

Grimm, Siegfried H.

Oscillators

Plural oscillators

Adjustable frequency

307271, 307273, 328196, 328207, 331 55, 331145, 331177R, H03K 302

Patent

active

040017168

ABSTRACT:
A digital oscillator with output frequency accurately changeable from one period to the next. A plurality of retriggerable monostable multivibrators having discretely different design pulse widths are OR'd to an output monostable multivibrator having the narrowest design pulse width. The plurality of monostable multivibrators are triggered in common by the OR'd outputs thereof such that the longest pulse width one thereof defines the period of the output monostable multivibrator. Logic enabling means permit selection of multivibrator outputs to be OR'd.

REFERENCES:
patent: 3764992 (1973-10-01), Milne

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