half duplex

half duplex
Duplex Du"plex, a. [L., fr. duo two + plicare to fold. See {Two}, and {Complex}.] 1. Double; twofold. [1913 Webster]

2. (Computers) organized so that data may be transmitted in two opposite directions over the same channel; -- of communications channels, such as data transfer lines between computers. [PJC]

{Duplex escapement}, a peculiar kind of watch escapement, in which the scape-wheel has two sets of teeth. See {Escapement}.

{Duplex lathe}, one for turning off, screwing, and surfacing, by means of two cutting tools, on opposite sides of the piece operated upon.

{Duplex pumping engine}, a steam pump in which two steam cylinders are placed side by side, one operating the valves of the other.

{Duplex querela} [L., double complaint] (Eccl. Law), a complaint in the nature of an appeal from the ordinary to his immediate superior, as from a bishop to an archbishop. --Mozley & W.

{Duplex telegraphy}, a system of telegraphy for sending two messages over the same wire simultaneously.

{Duplex watch}, one with a duplex escapement.

{half duplex} (Computers) (a) arranged so that the information may be transmitted in both directions, but only in one direction at a time; -- of communications channels between computers; contrasted with {full duplex(a)}. (b) arranged so that the information transmitted to the remote computer also appears on the local terminal; -- of communications channels between computers; contrasted with {full duplex(b)}.

{full duplex}, (Computers) (a) arranged so that the information may be transmitted in both directions simultaneously; -- of communications channels between computers; contrasted with {half duplex(a)}. (b) arranged so that the information transmitted to the remote computer does not appear on the local terminal; -- of communications channels between computers; contrasted with {half duplex(b)}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • Half-duplex — Duplex (canal de communication) Pour les articles homonymes, voir Duplex. Le terme duplex est utilisé pour désigner un canal de communication. On différencie différents canaux : simplex qui transporte l information dans un seul sens half… …   Wikipédia en Français

  • Half duplex — Duplex (canal de communication) Pour les articles homonymes, voir Duplex. Le terme duplex est utilisé pour désigner un canal de communication. On différencie différents canaux : simplex qui transporte l information dans un seul sens half… …   Wikipédia en Français

  • Half-duplex — Half duplex, en castellano: semidúplex, significa que el método o protocolo de envío de información es bidireccional pero no simultáneo. Por ejemplo, las radios (transmisor portátil de radio) utilizan este método de comunicación, ya que cuando se …   Wikipedia Español

  • Half Duplex —   [engl.], Halbduplex …   Universal-Lexikon

  • half-duplex — half du·plex s.m.inv. ES ingl. {{wmetafile0}} TS telecom. in una trasmissione seriale, collegamento effettuato con un solo canale e che permette, alternativamente, l invio di informazioni nei due sensi {{line}} {{/line}} DATA: sec. XX. ETIMO:… …   Dizionario italiano

  • half-duplex operation — mišrusis dvipusis ryšys statusas T sritis radioelektronika atitikmenys: angl. half duplex operation; semi duplex operation vok. Halbduplexverbindung, f; Semiduplexbetrieb, m rus. полудуплексная связь, f pranc. exploitation semiduplex, f …   Radioelektronikos terminų žodynas

  • half-duplex connection — pakaitinis dvipusis ryšys statusas T sritis informatika apibrėžtis Ryšys, kai vienu metu informacija perduodama tik viena kryptimi – vienas siunčia, kitas priima. Ryšio punktai gali keistis vaidmenimis, pavyzdžiui, perjungdami aparatūrą siuntimui …   Enciklopedinis kompiuterijos žodynas

  • half-duplex —    Abbreviated HDX. In asynchronous transmissions, the ability to transmit on the same channel in two directions, but only in one direction at a time.    See also communications parameters; duplex; full duplex …   Dictionary of networking

  • half duplex — noun : a mode of communication especially with a computer via telephone line in which information can be sent in only one direction at a time compare duplex in the Dict full duplex herein …   Useful english dictionary

  • half duplex — noun Date: 1950 a mode of communication especially with a computer via telephone line in which information can be sent in only one direction at a time compare duplex …   New Collegiate Dictionary

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