Multiband cross-coupled compressor with overshoot protection cir

Details Multiband cross-coupled compressor with overshoot protection cir Multiband cross-coupled compressor with overshoot protection cir

1979-08-06

1981-02-03

Cook, Daryl W.

Amplifiers

Signal feedback

Combined with control of bias voltage of signal amplifier

179 1VL, 330 86, H04B 166, H04M 100, H03F 136

Patent

active

042490421

ABSTRACT:
A multiband compressor suitable for compressing the dynamic range of an audio signal in a broadcasting system is disclosed. The frequency band with the highest predictable energy is selected as a master band with the energy level in this band used to control the gain in the other (slave) bands. When the energy in a slave band exceeds a predetermined level, additional control of the signal level in that band occurs. The described compressor has the advantages of both the wideband compressors and multiband compressors without the disadvantages of these compressors. In addition to the compressor, a unique overshoot protection circuit is described.

REFERENCES:
patent: 3538246 (1970-11-01), Macovski et al.
patent: 3624306 (1971-11-01), Meyers
patent: 3781703 (1973-12-01), Duty
patent: 3789143 (1974-01-01), Blackmer
patent: 4034160 (1977-07-01), Van Gerwen
patent: 4114115 (1978-09-01), Minnis
patent: 4134074 (1979-01-01), Hershberger

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