FM composite signal processor

Details FM composite signal processor FM composite signal processor

1995-12-29

1999-06-15

Faile, Andrew I.

Telecommunications

Transmitter and receiver at separate stations

Frequency or phase modulation

455 45, 455114, H04B 100, H04B 700

Patent

active

059131527

ABSTRACT:
A signal processor for amplitude and frequency limiting of a multiplex FM composite signal is described. To maximize the amount of available bandwidth and minimize the generated distortion, the disclosed signal processor employs multiple low-distortion amplifying and clipping subsystems. The subsystems include a stereophonic pilot signal protection circuit which protects the 19 khz pilot signal from the composite FM signal processing, an adjustable limiting circuit, and an adjustable dual low-pass filter/overshoot compensation circuit.

REFERENCES:
patent: 4134074 (1979-01-01), Hershberger

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