Hedy Lamarr was an Austrian-born American actress, celebrated for her great beauty, who was a major contract star of MGM's "Golden Age". Mathematically talented, Lamarr also co-invented—with composer George Antheil—an early technique for spread spectrum communications and frequency hopping, necessary for wireless communication from the pre-computer age to the present day.
Heddy Lamar. She was Jewish living in a Nazi occupied Austria. She was married to a Weapons Manufacturer and she learned a lot. She divorced her husband, left Germany for America and renewed her acting career in Hollywood. In her spare time, she developed a highly specialized frequency code that could keep torpedo guidance systems from getting jammed. It was only in the late 1990's that many a cell phone manufacturer realized that Heddy owned patents of the frequency skipping technology.