The story seems an improbable fiction: a famous Hollywood actress invents a secret technology so far ahead of its time that it takes decades for the full potential of her idea to be recognized. Yet in 1941, actress Hedy Lamarr, collaborating with pianist George Anthiel, invented frequency-hopping, spread-spectrum technology. The […]
George Antheil
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Spread-spectrum and ultra-wideband (UWB) technology arose during the Second World War. Actress Hedy Kiesler Markey (better known by her screen name, Hedy Lamarr) and George Antheil invented a frequency-hopping secret communication system. [1] The Figure below shows their frequency hopping transmitter. A record tape encodes a unique coding pattern to […]