She met her neighbour, avant-guard composer Antheil at a party. He had been working on automated control of musical instruments! This was the answer. Together they developed her frequency-hopping idea, encorporating his tech for synching pianolas & on August 11 1942, US Patent Number 2,292,387 for “Secret Communications System" was granted. This early version of frequency hopping used a piano-roll to change among 88 frequencies (like 🎹 ). 🧵4/5
Though the US navy did not adopt the method until ‘62 blockade of Cuba & other patents also contributed to modern methods, today we recognize Hedy Lamarr as an important pioneer of wireless tech! Lamarr's & Antheil's frequency-hopping idea serves as a basis for modern spread-spectrum #communications tech like WiFi
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