Jitter reducing circuit

Television – Flutter or jitter correction

Patent

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Details

348501, 348537, 386 13, 386 85, H04N 700, H04N 504, H03L 700

Patent

active

059233770

ABSTRACT:
A sync signal correction circuit generates a corrected sync signal which is obtained by correcting a timing of a sync signal on the basis of a time axis variation component (jitter component) of the sync signal separated from a picture signal. The corrected sync signal is used as the sync signal to cause a variation of time axis error of the picture signal to follow a variation of time axis error of an output signal of an automatic frequency control (AFC) circuit which constitutes a monitor device for reproducing and displaying the picture signal, such that the variation of time axis error of the output signal of the AFC circuit and the variation of time axis error of the picture signal of the reproduced picture signal are cancelled each other to prevent jittere from appearing on a display screen.

REFERENCES:
patent: 3900885 (1975-08-01), Tallent et al.
patent: 4081834 (1978-03-01), Takamiya et al.
patent: 5504534 (1996-04-01), Sakaegi

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