Lamarr didn’t invent frequency hopping. She invented a variant. The Navy never used her invention. 5g cell phones and WiFi use a different form of spread spectrum, code division multiple access, not frequency hopping. Spread spectrum actually existed since the 1920s, before Lamaar.
Lamarr didn’t invent frequency hopping. She invented a variant. The Navy never used her invention. 5g cell phones and WiFi use a different form of spread spectrum, code division multiple access, not frequency hopping. Spread spectrum actually existed since the 1920s, before Lamaar.