Syllabic compander with logarithmic chain

Details Syllabic compander with logarithmic chain Syllabic compander with logarithmic chain

1978-06-28

1981-02-10

Gensler, Paul L.

Wave transmission lines and networks

Amplitude compression and expansion systems

455 72, H04B 164

Patent

active

042504708

ABSTRACT:
A syllabic compander uses logarithmic chains in both the compressor and expander. The logarithmic chains are each constructed of a logarithmic amplifier, a scaler, and an antilogarithmic amplifier or their equivalents. The output of a logarithmic chain is equal to the input raised to a power determined by the scale factor of the scaler. A logarithmic chain is used with a multiplier and an average value circuit to implement equations of the form

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