Circuit for inserting and separating a field count into a lumina

Details Circuit for inserting and separating a field count into a lumina Circuit for inserting and separating a field count into a lumina

1991-09-20

1998-04-14

Tran, Thai

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

386109, 348427, 348429, H04N 980

Patent

active

057403023

ABSTRACT:
In a video recording apparatus, a frequency folding information inserting circuit comprises an E/O field detector for detecting whether the present video signal is of an even number or odd number field, a frequency folding information generator for generating frequency folding information representing the state of frequency folding according to the detected result of the E/O field detector, an adder for adding the folded video signal to the frequency folding information, and a position setter connected between the adder and the frequency folding information generator for supplying the generated frequency folding information to the adder at any arbitrary time. In a video reproducing apparatus, a frequency folding information separating circuit comprises a position detector for detecting the position where frequency folding information is inserted in the reproduced video signal, and a frequency folding information separator for separating the frequency folding information included in the reproduced video signal according to the detected result of the position detector.

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