Amplitude control device

Details Amplitude control device Amplitude control device

1992-07-30

1994-03-29

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307359, 307493, 348645, 348678, H03K 508, H04N 552

Patent

active

052987981

ABSTRACT:
An amplitude control device for controlling an amplitude of a data signal having an reference amplitude includes an A/D converter which converts the data signal to an n-bit digital signal, an extraction circuit for extracting the reference amplitude from the n-bit digital signal, a compactor for comparing the extracted reference amplitude with a predetermined amplitude to produce a first signal when the extracted reference amplitude is greater than the predetermined amplitude, and a second signal when the extracted reference amplitude is smaller than the predetermined amplitude. A counter counts up and down on receipt of the first signal and second signal, respectively, and produces an m-bit digital signal representing the counting result. A ROM stores a table in which the n-bit digital signal and the m-bit digital signal are used as an address for designating a value equal to the n-bit digital signal multiplied by a coefficient determined by the m-bit digital signal.

REFERENCES:
patent: 4466015 (1984-08-01), Wargo et al.
patent: 4514754 (1985-04-01), Nillesen et al.
patent: 4636852 (1987-01-01), Farmer
patent: 5136382 (1992-08-01), Meyer
patent: 5185538 (1993-02-01), Kondoh et al.

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