Sony DVP-NS999ES - Manual (Page 15)

ES Series DVD-Video/CD/SA-CD Players; Version 3.0 Page 15
Noise Shaped Video and the higher 108 MHz and 216 MHz sampling
frequencies work together to cut video noise for improved transparency
and clarity.
Super Sub Alias Filter™ circuitry (all models)
The benefit of the 108 MHz and 216 MHz sampling rates is delivered by
the Super Sub Alias Filter circuits. In comparison to most previous designs,
these filters are now far more effective for two powerful reasons. First, the
sampling rates are higher ever. Second, while some previous designs deployed
Super Sub Alias Filter circuitry on the black-and-white (luminance) channel only,
all ES Series DVD players use these filters on all three video channels:
luminance (Y), blue color difference (P
B
) and red color difference (P
R
). This
results in a consistently clean, clear, vibrantly detailed color picture.
The typical filter leaves traces of the clusters of aliasing noise, which
look like lumps in the top diagram. Super Sub Sampling Alias Filter
circuits on the Y, P
B
and P
R
channels control this aliasing noise more
effectively.