Numerically controlled oscillator

Details Numerically controlled oscillator Numerically controlled oscillator

1982-12-27

1985-04-30

Miller, Stanley D.

Oscillators

Relaxation oscillators

331 2, 331 54, 331 48, 331107P, 364786, 377 80, H03B 2700, H03J 706

Patent

active

045146969

ABSTRACT:
A radio frequency numerically controlled oscillator comprising N one bit adders each providing sum and carry outputs to one of N two bit registers. Sum, carry and frequency selection inputs are combined by each adder to form sum and carry outputs. These results are held by the associated register when triggered by a clock input. A fast parallel adder/latch is employed which has two stages connected serially to generate sums on opposite phases of a two phase clock.

REFERENCES:
patent: 3641442 (1972-02-01), Boucher
patent: 3735269 (1973-05-01), Jackson
patent: 3973209 (1976-08-01), Nossen et al.
patent: 4052604 (1977-10-01), Maitland et al.
patent: 4144579 (1979-03-01), Nossen et al.
patent: 4185247 (1980-01-01), Harrison, Jr.
patent: 4240034 (1980-12-01), Lowenschuss
patent: 4241308 (1980-12-01), Cellier et al.

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