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Karl Küpfmüller

Karl Küpfmüller
Born (1897-10-06)6 October 1897
Nuremberg, German Empire
Died 26 December 1977(1977-12-26) (aged 80)
Darmstadt, Germany
Nationality German
Fields Electronic engineering
Institutions

Siemens,
Danzig Institute of Technology,

Berlin Institute of Technology
Alma mater Ohm-Polytechnikum (today called: Georg-Simon-Ohm-Hochschule Nürnberg)
Known for

Küpfmüller's uncertainty principle (1924)

Nyquist–Shannon sampling theorem
Notable awards Werner von Siemens Ring (1968)

Siemens,
Danzig Institute of Technology,

Küpfmüller's uncertainty principle (1924)

Karl Küpfmüller (6 October 1897 – 26 December 1977) was a German electrical engineer, who was prolific in the areas of communications technology, measurement and control engineering, acoustics, communication theory and theoretical electro-technology.

Küpfmüller was born in Nuremberg, where he studied at the Ohm-Polytechnikum. After returning from military service in World War I, he worked at the telegraph research division of the German Post in Berlin as a co-worker of Karl Willy Wagner, and, from 1921, he was lead engineer at the central laboratory of Siemens & Halske AG in the same city.

In 1928 he became full professor of general and theoretical electrical engineering at the Technische Hochschule in Danzig, and later held the same position in Berlin. Küpfmüller joined the National Socialist Motor Corps in 1933. In the following year he also joined the SA. In 1937 Küpfmüller joined the NSDAP and became a member of the SS, where he reached the rank of Obersturmbannführer.

Küpfmüller was appointed as director of communication technology Research & Development at the Siemens-Wernerwerk for telegraphy. In 1941–1945 he was director of the central R&D division at Siemens & Halske in 1937.

Later he was honorary professor at the Technische Hochschule Berlin. In 1968, he received the Werner von Siemens Ring for his contributions to the theory of telecommunications and other electro-technology.


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