quadruplex — [ k(w)adryplɛks ] n. m. • 1879; mot angl. 1875, empr. au lat. class. (→ quadruple) pour désigner une invention d Edison (1874) ♦ Techn. Système de transmission télégraphique qui permet d expédier simultanément quatre messages distincts. ●… … Encyclopédie Universelle
Quadruplex — is a technical term from the communications and recording industries and may refer to *Quadruplex telegraphy, an improvement on the electrical telegraph patented in 1874 by Thomas Edison; *2 inch Quadruplex videotape, the first practical and… … Wikipedia
Quadruplex — Quad ru*plex, a. [L., from quattuor four + plicare to fold.] Fourfold; folded or doubled twice. [1913 Webster] {Quadruplex system} (Electric Telegraph), a system by which four messages, two in each direction, may be sent simultaneously over the… … The Collaborative International Dictionary of English
Quadruplex system — Quadruplex Quad ru*plex, a. [L., from quattuor four + plicare to fold.] Fourfold; folded or doubled twice. [1913 Webster] {Quadruplex system} (Electric Telegraph), a system by which four messages, two in each direction, may be sent simultaneously … The Collaborative International Dictionary of English
telegraph — Synonyms and related words: Teletype, cable, cablegram, day letter, facsimile telegraph, fast telegram, flash, heliograph, multiplex, night letter, quadruplex, radio, radiogram, radiotelegraph, semaphore telegraph, send a wire, sign off, sign on … Moby Thesaurus
Thomas Alva Edison — (1915) Thomas Alva Edison (* 11. Februar 1847 in Milan, Ohio; † 18. Oktober … Deutsch Wikipedia
List of Edison patents — Below is a list of Edison patents. Thomas Edison was an inventor who, it is said, accumulated 1500 plus patents worldwide for his inventions. Nearly 1100 of Edison s patents were in the United States, but other patents were approved in countries… … Wikipedia
Thomas Edison — Infobox person name = Thomas Alva Edison caption = Genius is one percent inspiration, ninety nine percent perspiration. Thomas Alva Edison, Harper s Monthly (September 1932) birth date =birth date|1847|02|11 birth place =Milan, Ohio death date… … Wikipedia
Multiplexing — General multiplex scheme: the ν input lines channels are multiplexed into a single fast line. The demultiplexer receives the multiplexed data stream and extracts the original channels to be transferred … Wikipedia
Julius Wilhelm Gintl — was an Austrian physicist. He was notable as the developer of an early form of duplex electrical telegraph, which allowed two messages to be transmitted on a single wire, in opposite directions. This duplex communication was an early specific… … Wikipedia
