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Louis W. Parker   Budapest, (Unghary) 01.January.1906-             21.June.1993     Biographical notes                He attended primary and secondary schools in Hungary, the family moved to New York in 1932. Having learned the English he enrolled at City College of New York.  In 1929 invents a Hotel-radio system that uses electric cables of the building for the deployment of a low-frequency signal and requires the  receiver with a single valve .  He worked for radio equipment for aircraft, and scopes on closed-circuit TV. During World War II portable radios designed for military use and in this period the system patented sound inter-carrier adopted worldwide as lowers the cost of remote receivers.  Another important invention is the system of vertical lines of rare earth phosphors or cinescope of color, simpler system of the triad and this is now in use worldwide.  He also supplied instrumentation used for the mission of the Moon. Throughout his career to product 200 U.S. and foreign patents.     Documents   US Patent 2448908 Television Receiver September 7, 1948 (submitted July 13, 1944)