Digital television special effect waveform generator

Details Digital television special effect waveform generator Digital television special effect waveform generator

H - Electricity

04

N

350/53

H04N 5/262 (2006.01)

Patent

CA 1203894

Abstract of the Disclosure A digital television special effect waveform generator produces a gate signal used for composing two video signals as a special effect, provided with a waveform having a soft width in which these two video signals are gradually alternated, according to the direct digital calculation of digital data consisting of a stating address, a central address and an aspect ratio of the waveform. As a result, a special effect waveform for smoothly alternating two video signals can be easily obtained with a comparatively simple digital circuit configuration prevented from the injurious influence of noise.

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