Compandor with DC-coupled compressor

Details Compandor with DC-coupled compressor Compandor with DC-coupled compressor

1992-06-15

1993-09-14

Gensler, Paul

Wave transmission lines and networks

Amplitude compression and expansion systems

381106, H03G 700

Patent

active

052452999

ABSTRACT:
A compandor circuit uses a DC-coupled compressor to reduce the required IC package size to 8-pins. A delta gain stage and rectifier in the feedback path of the compressor circuit receive the AC and DC components of the compressed analog output signal Features of the delta gain stage and rectifier eliminate the need for any AC-coupling capacitors in the feedback path thereby reducing the number of external components The remaining external components may be made smaller and manufactured as surface mount devices An expandor circuit receives a second compressed analog signal and expands it to full amplitude dynamic range.

REFERENCES:
patent: 4878031 (1989-10-01), Main
patent: 5012139 (1991-04-01), Susak et al.
patent: 5079517 (1992-01-01), Bader
patent: 5179361 (1993-01-01), Navid et al.

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