History of the Development of Digital Transmission Techniques in TV Broadcasting

The history of development in TV broadcasting has been characterized by the increasing part digital signal transmission has played since the introduction of colour television in 1967. Supplementary and value-added services were introduced and then digital audio techniques were specified and partially implemented. To achieve the digitization of the television image, however, it was necessary for a number of driving forces to combine synergetically: the (original) motivation for introducing high-definition television (HDTV)the revolutionary advances in microelectronics integration (DSP-Digital Signal Processing), andthe results of research in psychooptics, utilized in data compression of the source signals.