PEDL87V21071-01
OKI Semiconductor
ML87V21071
2.2 Cross-Color Cancellation
The cross-color cancellation function of this IC removes the commingling of chrominance (cross color) of the fsc
component in luminance in 2DYC separation method, by using an inter-frame comb filter through the video
signal interleaving relationship. This IC has also the movement compensation function that checks luminance
movements between frames and sets the cancellation function to OFF when detecting a movement.
[Notes on using the cross-color cancellation function]
• Supports cross-color due to NTSC and PAL and cancellation is not effective in SECAM .
• Cancellation is not effective for progressive input either.
• While the cross-color cancellation function is active, chrominance recursive type noise reduction does not
function.
• When using the cross-color cancellation function, set MEM411 to “1” and the internal memory to the 4:1:1 use
mode since two-frame chrominance data needs to be used.
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