Apparatus including amplitude limiter and associated method for

Details Apparatus including amplitude limiter and associated method for Apparatus including amplitude limiter and associated method for

1993-11-08

1995-09-05

Kostak, Victor R.

Television

Image signal processing circuitry specific to television

Noise or undesired signal reduction

348622, H04N 5213

Patent

active

054483034

ABSTRACT:
An apparatus and method for generating a modified video signal consisting of a correction signal and a video input signal. The correction signal is derived from a digitized video input signal by at least a frequency-band limiter and an amplitude limiter. The video input signal is delayed by the processing time of the correction signal before the two signals are combined. To avoid unwanted harmonics the amplitude limiter uses a transfer function which can be exactly described by a rational integral function of the nth degree,

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Fernseh-Und Kino-Technik Vogt Jul. 1989 Zweidmensionale Digitale Aperturentzerrung Fur HDTV Kameras, Vogt, C, "Fernseh-Und Kino-Technik" 1989, No. 7, pp. 356-362; German Periodical.

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