A compression/decompression system includes a source of non-interlaced scanned video signal. A preprocessor constructs interlaced scanned video signal from the non-interlaced scanned video signal by selection of alternate lines of successive non-interlaced image signals. The interlaced scanned video...http://www.google.de/patents/US5387940?utm_source=gb-gplus-sharePatent US5387940 - Method and apparatus for providing scaleable compressed video signal
