Variable word length encoder reduces TV bandwith requirements
W. E. Sivertson · NASA STI Repository (National Aeronautics and Space Administration) · 1965
Adaptive variable resolution encoding technique provides an adaptive compression pseudo-random noise signal processor for reducing television bandwidth requirements. Complementary processors are required in both the transmitting and receiving systems. The pretransmission processor is analog-to-digital, while the postreception processor is digital-to-analog.