An experimental home-use digital VCR with three dimensional DCT and superimposed error correction coding
Ken Onishi, Takeshi Itow, Hiroaki Nishikawa, K. Sugiyama, H. Yoshida, Masato Nagasawa, Keisuke Ido, Kunihiko Nakagawa, Yusuke Ishida, Satoshi Kunii · IEEE Transactions on Consumer Electronics · 1991
An experimental digital VCR system for home use is described. A high-quality moving picture is obtained by a newly developed bit rate reduction technology, which is based on subband and three-dimensional DCT (discrete cosine transform) coding. A high-density magnetic recording method which adopts a 12-to-15 modulation scheme and superimposed error correction coding enable sufficient recording time with a small cassette. Component video signals with a ration of 4:2:2 were compressed to about the ratio of 1/7, keeping a high quality, using the subband and 3-D-DCT coding method.>