Quote:
Originally Posted by old_tv_nut
Much too late to be a patent on basic combination of luminance and color subcarrier. . . . . . . similar to the way NTSC chroma and luma are interleaved.
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Philips claims priority, with application in the Netherlands on May 1, 1952 and US patent applied for April 28, 1953 and this patent took 5 years to be approved in the US.
I suspect that there originally more claims and this potential interference patent could be the reason that RCA dropped their obviously superior I & Q system like a hot potato!
Jas.