Pull-down detection apparatus and pull-down detection method

Details Pull-down detection apparatus and pull-down detection method Pull-down detection apparatus and pull-down detection method

2011-08-16

2011-08-16

Lam, Hung H (Department: 2622)

Television

Format conversion

C348S700000

Reexamination Certificate

active

07999876

ABSTRACT:
A pull-down detection apparatus includes a pixel comparator at least performing pixel comparison between a subsequent field and a present field and horizontal pixel comparison in the subsequent field and the present field to determine a presence of a pixel change between the subsequent field and the present field, a field comparator determining a presence of an image change between the subsequent field and the present field based on a determination result in the pixel comparator, and a pull-down determinater determining that the input video signal is generated by pull-down processing based on a history of a determination result in the field comparator.

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