Georges Valensi

M. Georges Valensi (1889–1980) was a French telecommunications engineer who, in 1938, invented and patented a method of transmitting color images via luma and chrominance so that they could be received on both color and black & white television sets.[1][2] Rival color television methods, which had been in development since the 1920s, were incompatible with monochrome televisions.

Valensi was an official of CCIF serving first as Secretary-General (1923–1948) and then as Director (1949–1956).[3]

All current widely deployed color television standards – NTSC, SECAM, PAL and today's digital standards – implement his idea of transmitting a signal composed of separate luminance and chrominance. Because his invention pre-dated the actual introduction of color television by so long, his patent was exceptionally extended to 1971.

References
  1. FR patent 841335, Valensi, Georges, "Procédé de télévision en couleurs", published 1939-05-17, issued 1939-02-06
  2. US patent 2375966, Valensi, Georges, "System of television in colors", published 1945-05-15
  3. "Past and Present Senior Officials". International Telecommunication Union. hdl:11.1004/020.2000/s.048.
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