Amplitude limiting circuit for frequency modulated video signals

Details Amplitude limiting circuit for frequency modulated video signals Amplitude limiting circuit for frequency modulated video signals

1976-07-13

1977-12-20

Konick, Bernard

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

360 33, 358281, 358296, 307237, H04N 576

Patent

active

040645371

ABSTRACT:
An amplitude limiting circuit comprises a high-pass filter for passing the high frequency components of a frequency modulated video signal. The centerline of a signal portion has an amplitude width which is non-linear. A first amplitude limiter both limits and amplifies the output signal from the high-pass filter. A low-pass filter passes the low frequency component of the frequency modulated video signal. An adder adds the resulting output signals of the first amplitude limiter and the low-pass filter. A second amplitude limiter limits the resulting output of the adder.

REFERENCES:
patent: 3532808 (1970-10-01), Fujisawa
patent: 3626087 (1971-12-01), Tomioka

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