NTSC compatible high definition television emission system

An economically attractive system for the hierarchical evolution of high-definition television (HDTV) compatible with the NTSC installed base is presented. The two emission signals of this system are described: HDMAC-60 and HDNTSC. The first, HDMAC-60, is a feeder signal for use between the program origination and program redistribution points and the direct broadcast satellite. The second, HDNTSC, is a delivery signal for high-definition terrestrial broadcast, CATV distribution and VCR plus laser video disc applications. This emission system is proposed as a means for transmitting HDTV pictures to consumers on the North American continent.<
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