| 摘要 |
PROBLEM TO BE SOLVED: To obtain stabilized video data in an SECAM digital video decoder. SOLUTION: The SECAM digital video decoder comprises a first delay means 12 for delaying a color signal Cr(n+1) demodulated from an SCAM system color modulation signal by 1H to obtain a color signal Cb(n), a second delay means 13 for further delaying the color signal Cb(n) by 1H to obtain a color signal Cr(n-1), a third delay means 16 for delaying luminance data Y(n+1) by 1H to obtain a luminance signal Y(n), and a means 17 for comparing the delayed luminance signal Y(n) with Y(n+1) to output a signal dependent on the difference of luminance wherein any two of the signals Cr(n+1), Cb(n) and Cr(n-1) are output selectively based on the signal dependent on the difference of luminance. COPYRIGHT: (C)2006,JPO&NCIPI
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