Gustav Guanella

There, he became assistant to Professor Fritz Fischer, known as the inventor of the Eidophor large-screen video projection system, at the Institute of Technical Physics until 1937, followed by a few years as a consultant to different companies.

Some of these early inventions related to locating and radio direction-finding solutions as predecessors to radar before and during the first years of World War II.

Guanella and other outstanding engineers positioned the company in the fields of radio transmitters, power line communications, microwave links and encryption techniques.

[2] In particular, Guanella is credited as one of the inventors of the Direct Sequence Spread Spectrum (DSSS) transmission technique.

[3] In the Spread Spectrum Communications Handbook by M.Simon et al.,[4] Guanella is referred to as Swiss pioneer of noise-modulated radar and speech privacy systems.

(honoris causa) in 1969[1] together with Albert Hofmann, discoverer of LSD, married to his sister Anita Guanella.