Apparatus for changing the scale of a logarithmic signal

Details Apparatus for changing the scale of a logarithmic signal Apparatus for changing the scale of a logarithmic signal

1978-09-05

1980-11-11

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307230, 307237, 307264, 328168, H03K 508, G06G 724

Patent

active

042335647

ABSTRACT:
With the apparatus described, the logarithmic slope of a signal may be changed so that a relatively flat signal has its scale expanded to make full use of the available voltage range. To do so the supplied logarithmic signal is clamped to a selected voltage level and then linearly amplified to develop an output signal having a logarithmic scale different from that of the supplied signal.

REFERENCES:
patent: 3234404 (1966-02-01), Peters
patent: 3509368 (1970-04-01), Pedersen
patent: 4002977 (1977-01-01), Sun et al.

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