Technology
- Knowledge from meetings with Fritz Mandel.
- 1940: Collaboration with composer George Antheil (Ballet mécanique).
- Frequency hopping to reduce detection or jamming for radio-controlled torpedoes.
- Based on piano roll, hopping between 88 frequencies.
- Prior art: Nicolai Tesla in 1900 (patented in 1903).
- 1942: Patented Secret Communication System.
- 1959: Patent expired.
Legacy