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Yanhuang - I WSC1115, a video scanning
format conversion chip developed by Chengdu Weisida Chip Co.
Ltd. passed on August 23, 2003 the technical verification
check organized by National Quality Control Center for Radio
and TV Products. The verification was made at the Center by
comparing Yanhuang -1 chip with a similar chip manufactured
overseas. The comparison has shown that Yanhuang — I
chip has met the high standards defined for high resolution
digital TV in the context of the performance under constant
temperature, video band width, frequency variation, pulse
responding, RGB output level, and horizontal and vertical
resolution. Under the analog format with an input of
5251ines/60Hz (NTSC) and an
output of 720X480P/60Hz,
Yanhuang — I chip has outperformed its overseas
counterpart in sports image processing, especially in
diminishing the effects of dragging, saw — teeth and
feathering. It also presents a vertical resolution better
than the compared chip under the format with an input of
6251ines/50Hz (PAL) and output of 720 X 625/50Hz.
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