FAM 20.3 A DIGITAL CMOS 2H ADAPTIVE COMB FILTER IC
D. Hostetler · 1989
A CMOS IC with 2 X 910 bytes of RAM, A/D converter, 2 D/A converters and video DSP filters is presented. The converters allow analog input and outputs, while the DSP filters are stable and require no alignment. Configured as a 2H comb filter for NTSC applications, this IC adapts the filtering algorithm dynamically based on the l ocal picture content. The technology and design approach also lends itself well to 1H comb filters and PAL comb filters. Other video p rocessing devices such as time base correctors and picturein-picture would also benefit.