1 November 1991 45-Mbps multichannel TV coding system
Author Affiliations +
A new digital coding system is presented, which makes it possible to transmit up to 4 NTSC TV programs simultaneously over a single DS3 45Mbps link including two high quality sound channels and one 64 kbps ancillary data channel. The principal bit-reduction technology employed is 2 dimensional intraframe WHT (Walsh Hadamard Transform) coding with an advanced adaptive quantization reflecting human visual perception. The hardware has been made compact like a home use VTR.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Shuichi Matsumoto, Shuichi Matsumoto, Takahiro Hamada, Takahiro Hamada, Masahiro Saito, Masahiro Saito, Hitomi Murakami, Hitomi Murakami, "45-Mbps multichannel TV coding system", Proc. SPIE 1605, Visual Communications and Image Processing '91: Visual Communication, (1 November 1991); doi: 10.1117/12.50268; https://doi.org/10.1117/12.50268

Back to Top