Compandor with sampling and equalization
Compansion system
Compression and expansion system with enlarged dynamic range
Compressor-expander circuits and, circuit arrangements for modif
Compressors, expanders and noise reduction systems
Control voltage generator for a system for dynamic compression o
Device for optionally realizing two mutually complementary funct
Dynamic volume expander varying as a function of ambient noise l
Dynamics compressor for an analog signal to be compressed
Extended response dynamic noise reduction system
Information signal compressor and expander
Instantaneous compressor and instantaneous expandor
Noise reducing apparatus
Noise reducing apparatus
Noise reduction circuit having voltage to current converting mea
Noise reduction compression system controlled by compressed outp
Noise reduction in companding arrangements
Noise reduction system
Noise reduction system
Noise reduction system having series connected low and high freq