Patent ID: 6100934
Filing Date: 2000-08-08
Classification: H04N

Abstract:
An apparatus for converting a non-interlaced color computer graphics signal into an interlaced color video signal, wherein the non-interlaced computer graphics signal consists of a plurality of contiguous scan lines, and the interlaced video signal alternately consists of a plurality of odd fields and even fields, comprising:a receiving means for sequentially receiving a scan line;four or less line buffers storing brightness signals of a plurality of adjacent scan lines before the received scan line; anda low-pass filter receiving the brightness signals of the adjacent scan lines of the received scan line from the line buffers and the received scan line from the receiving means, only weighting the brightness signals of these scan lines, and alternately outputting the scan lines with the weighted brightness signal and a halved refresh rate to serve as the even field and the odd field of the interlaced video signal.