Reproducing device of video signal

Abstract

Abstract PURPOSE:To obtain corrected video signals for which deterioration of the resolution and vertical movement of picture are prevented, by making the polarity of field information and chroma signal coincide with that of a reference signal at the timing when a field picture signal is thinned out or overlappingly inserted. CONSTITUTION:Reproduced video signals VIN reproduced from a tape are written and stored in field memories 1 and 2. The reproduced video signal VIN contains information indicating the even and odd of field numbers and information indicating the positive and negative of the polarity of chroma signals, in additiin to a luminance signal and chrominance component. By performing a prescribed process on the reproduced video signal based on these information, a normalized video signal B whose field number is made coincident with the reference signal REF in terms of the even and odd and whose chroma signal is made coincident with the reference signal REF in terms of the polarity, is obtained. Moreover, a line addition video signal A whose chroma signal is made to coincide with the reference signal in terms of the polarity and whose luminance signal is the mean value of the upper and lower two scanning lines, is outputted from a line addition processing circuit 3 and these signals A and B are given to an output video signal forming circuit 15. As a result, an output video signal VOUT on which appropriate weighting is performed is obtained.

Inventors

• 👤 Yoshiyuki Nakamura
• 👤 中村　嘉幸
• 👤 Tetsuo Kato
• 👤 加藤　哲郎
• 👤 Norio Ebihara
• 👤 海老原　規郎

Bibliographic Details