baud


baud
(Bd)
   a unit used in engineering for measuring the rate of data transmissionover telegraph or telephone lines. The baud rate is the number of distinctsymbols transmitted per second, that is, the number of times per second thesignal carrying the communication varies in strength or frequency. In thedays of the telegraph, the signal increased at the start of a pulse and decreasedat the end, so the baud rate was 2 times the number of dots that could betransmitted per second. In recent years, when the baud has been used to representdigital data transmission, the definition has varied according to the techniqueused. If the symbols transmitted have only two states (on or off) then thebaud rate is the same as the transmission rate in bits per second. This was the case in early modems, but in modern data transmissionequipment symbols have a much larger number of possible states. For example,if the signal has 28 = 256 possible states, then a single symbolcan carry 8 bits of information and the bit rate will be 8 times the baudrate. Consequently, any use of "baud" as a synonym for "bits persecond" is incorrect. The baud is named for the French telegraph engineerJ. M. E. Baudot (1845-1903), the inventor of the first teleprinter.

Dictionary of units of measurement. 2015.

Look at other dictionaries:

  • baud — baud …   Dictionnaire des rimes

  • baud — [ bo ] n. m. • 1929; de Baudot, n. d un ingénieur des télégraphes ♦ Télécomm. Unité de mesure de la vitesse de modulation d un signal. Les lignes téléphoniques permettent une vitesse de 2 400 bauds. Modem fonctionnant à 28 800 bauds. ⊗ HOM. Bau,… …   Encyclopédie Universelle

  • Baud — Saltar a navegación, búsqueda Baud Baod País …   Wikipedia Español

  • Baud — 〈a. [bo:d] n.; s, ; 〉 Maßeinheit für die Telegrafiegeschwindigkeit, für die Übertragungsgeschwindigkeit von Datenverarbeitungsanlagen, 1 Bit/Sekunde [nach dem frz. Ingenieur E. Baudot, 1845 1903] * * * Baud [ba̮ut , bo:t ], das; [s], [nach dem… …   Universal-Lexikon

  • baud — s. m. [au pron. fr. o], pl. bauzi Trimis de siveco, 10.08.2004. Sursa: Dicţionar ortografic  BAUD s.m. Unitate de viteză în transmisiunile telegrafice, corespunzând transmiterii unui punct din alfabetul Morse pe secundă. [pron. bo. / < fr.… …   Dicționar Român

  • baud — baud·e·lair·ean; ki·lo·baud; baud; baud·e·lair·ian; …   English syllables

  • baud — aud (b[add]d or b[^o]d), n. [Named after J. M. E. Baudot, a French inventor, died 1903.] (Computers, telecommunications) A unit of transmission speed for information conveyed over a digital communications channel, usually taken as equal to the… …   The Collaborative International Dictionary of English

  • baud — sb. (fk.), baud (en måleenhed) …   Dansk ordbog

  • Baud — (spr. Bod), Stadt im Bezirk Pontivy des französischen Departements Morbihan; 5150 Ew …   Pierer's Universal-Lexikon

  • baud — Mot Monosíl·lab Nom masculí …   Diccionari Català-Català

  • baud — s.m.inv. TS telecom., metrol., inform. unità di misura della velocità telegrafica e telefonica pari a un bit al secondo (simb. B) {{line}} {{/line}} DATA: 1937. ETIMO: tratto da Baudot, nome dell inventore francese Jean Maurice Émile Baudot (1845 …   Dizionario italiano

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.