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1 Baudot, Jean-Maurice-Emile
[br]b. 11 September 1845 Magneux, Franced. 28 March 1903 Sceaux, France[br]French engineer who developed the multiplexed telegraph and devised a 5-bit code for data communication and control.[br]Baudot had no formal education beyond his local primary school and began his working life as a farmer, as was his father. However, in September 1869 he joined the French telegraph service and was soon sent on a course on the recently developed Hughes printing telegraph. After service in the Franco-Prussian war as a lieutenant with the military telegraph, he returned to his civilian duties in Paris in 1872. He was there encouraged to develop (in his own time!) a multiple Hughes system for time-multiplexing of several telegraph messages. By using synchronized clockwork-driven rotating switches at the transmitter and receiver he was able to transmit five messages simultaneously; the system was officially adopted by the French Post \& Telegraph Administration five years later. In 1874 he patented the idea of a 5-bit (i.e. 32-permutation) code, with equal on and off intervals, for telegraph transmission of the Roman alphabet and punctuation signs and for control of the typewriter-like teleprinter used to display the message. This code, known as the Baudot code, was found to be more economical than the existing Morse code and was widely adopted for national and international telegraphy in the twentieth century. In the 1970s it was superseded by 7—and 8-bit codes.Further development of his ideas on multiplexing led in 1894 to methods suitable for high-speed telegraphy. To commemorate his contribution to efficient telegraphy, the unit of signalling speed (i.e. the number of elements transmitted per second) is known as the baud.[br]Bibliography17 June 1874, "Système de télégraphie rapide" (Baudot's first patent).Further Reading1965, From Semaphore to Satellite, Geneva: International Telecommunications Union.P.Lajarrige, 1982, "Chroniques téléphoniques et télégraphiques", Collection historique des télécommunications.KFBiographical history of technology > Baudot, Jean-Maurice-Emile
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2 Telecommunications
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3 Electronics and information technology
See also: INDEX BY SUBJECT AREA[br]Byron, Ada AugustaNapier, JohnRiche, Gaspard-Clair-François-MarieSchickhard, WilhelmBiographical history of technology > Electronics and information technology
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Baudot, Jean-Maurice-Émile — ▪ French engineer born 1845, Magneux, France died March 28, 1903, Sceaux engineer who, in 1874, received a patent on a telegraph code that by the mid 20th century had supplanted Morse Code as the most commonly used telegraphic alphabet.… … Universalium
Baudot, (Jean Maurice) Émile — born 1845, Magneux, France died March 28, 1903, Sceaux French engineer. In 1874 he patented a telegraph code that by the mid 20th century had supplanted Morse code as the standard telegraphic alphabet. In Baudot s code, each letter is represented … Universalium
Baudot, (Jean Maurice) Émile — (1845, Magneux, Francia–28 mar. 1903, Sceaux). Ingeniero francés. En 1874 patentó un código telegráfico que a mediados del s. XX había reemplazado completamente al código Morse como el alfabeto telegráfico estándar. En el código de Baudot, cada… … Enciclopedia Universal
Jean-Maurice-Émile Baudot — (* 11. September 1845 in Magneux (Haute Marne), Frankreich; † 28. März 1903 in Sceaux bei Paris) war ein französischer Ingenieur und Erfinder. Leben Geboren als Sohn eines Bauern, besuchte Baudot nur die Grundschule. In seiner Jugend … Deutsch Wikipedia
Jean-Maurice-Émile Baudot — Émile Baudot Pour les articles homonymes, voir Baudot. Émile Baudot Jean Maurice Émile Baudot, né à Magneux (Haute Marne) le 11 … Wikipédia en Français
Jean Maurice Émile Baudot — Émile Baudot Pour les articles homonymes, voir Baudot. Émile Baudot Jean Maurice Émile Baudot, né à Magneux (Haute Marne) le 11 … Wikipédia en Français
Emile Baudot — Émile Baudot Pour les articles homonymes, voir Baudot. Émile Baudot Jean Maurice Émile Baudot, né à Magneux (Haute Marne) le 11 … Wikipédia en Français
Émile Baudot — Pour les articles homonymes, voir Baudot. Émile Baudot Jean Maurice Émile Baudot, né à Magneux (Haute Marne) le 11 septembre 1845 et mort à Sceaux (Hauts de Seine) le … Wikipédia en Français
Baudot — I Baudot [bo do], Jean Maurice Émile, französischer Ingenieur, * Magneux (Département Haute Marne) 11. 9. 1845, ✝ Sceaux (bei Paris) 28. 3. 1903; Inspekteur des französischen Telegrafenwesens seit 1882. Baudot entwickelte 1874 einen druckenden… … Universal-Lexikon
Maurice — /mawr is, mor , maw rees /; for 3 also Fr. /maw rddees /, n. 1. German, Moritz. 1521 53, German general: elector of Saxony 1547 53. 2. of Nassau, 1567 1625, Dutch statesman. 3. a male given name. * * * (as used in expressions) Barrès Auguste… … Universalium
Maurice — (as used in expressions) Barrès, (Auguste) Maurice Baudot, (Jean Maurice) Émile Béjart, Maurice Maurice Jean Berger Chevalier, Maurice Dirac, P(aul) A(drien) M(aurice) Edelman, Gerald Maurice Evans, Maurice (Herbert) Ewing, (William) Maurice… … Enciclopedia Universal
