Circuit for automatic dynamic compression or expansion

Details Circuit for automatic dynamic compression or expansion Circuit for automatic dynamic compression or expansion

1978-09-22

1981-01-06

Mullins, James B.

Amplifiers

With control of power supply or bias voltage

With control of input electrode or gain control electrode bias

330136, 333 14, H03G 700

Patent

active

042439442

ABSTRACT:
The invention relates to a compander system. In such a compander system an adjusting member in the useful signal path is controlled by a control voltage which is generated in a branch path connected to the useful signal path and including at least one further adjusting member. The control voltage serves at the same time to control the adjusting members in the branch path in a counter-regulating sense. According to the present invention the branch path is connected to the input of the useful signal path during compression and to the output of the useful signal path during expansion.

REFERENCES:
patent: 3969680 (1976-07-01), Wermuth
patent: 4035739 (1977-07-01), Dickopp et al.
patent: 4103239 (1978-07-01), Meewezen

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