Patent ID: 7006147

Claim:
A method of converting interlaced video signals to progressive video signals, said method comprising: a) receiving an interlaced video signal representing a luma component specifying luma lines and a chroma component specifying chroma lines, wherein said chroma component specifies approximately one-half the number of lines of said luma component; b) decoding said interlaced video signal and increasing the number of said chroma lines to approximately the same as the number of said luma lines; c) decreasing the number of said chroma lines of said interlaced video signal back to approximately one-half of the number of said luma lines to avoid a vertical resolution degradation of said chroma lines, whereby said increasing of chroma lines is substantially reversed; and d) deinterlacing said interlaced video signal, whereby said deinterlacing results in a progressive video signal representing a luma component specifying luma lines and a chroma component specifying chroma lines.