half-duplex

(communications)(hdx, from telegraphy) 1. A type ofcommunication channel using a single circuit which can carrydata in either direction but not both directions at once.

Compare: simplex, full-duplex.

2. An obsolete term for local echo.

half-duplex

The transmission of data in both directions, but only one direction at a time. For example, two-way radio (push-to-talk phones) use half-duplex communications. When one party speaks, the other party listens. Contrast with full-duplex.

Are Cellphones Half-Duplex?
No, but they often sound as if they are. The cellular system generally uses separate transmit and receive channels for a two-way conversation. However, the GSM system switches back and forth between transmit and receive, and it often does not sound like a two-channel, full-duplex system. No digital cellular system is quite like the good old analog days when each phone call had two dedicated channels the entire session. See push-to-talk and GSM.

单词	half-duplex
释义	DictionarySeeGSM half-duplex half-duplex (communications)(hdx, from telegraphy) 1. A type ofcommunication channel using a single circuit which can carrydata in either direction but not both directions at once. Compare: simplex, full-duplex. 2. An obsolete term for local echo. half-duplex The transmission of data in both directions, but only one direction at a time. For example, two-way radio (push-to-talk phones) use half-duplex communications. When one party speaks, the other party listens. Contrast with full-duplex. Are Cellphones Half-Duplex? No, but they often sound as if they are. The cellular system generally uses separate transmit and receive channels for a two-way conversation. However, the GSM system switches back and forth between transmit and receive, and it often does not sound like a two-channel, full-duplex system. No digital cellular system is quite like the good old analog days when each phone call had two dedicated channels the entire session. See push-to-talk and GSM. half-cystine half-cys·tine (haf sis'tēn), Cysteine with the proton lost from the sulfur. LegalSeeSimplexFinancialSeeduplexAcronymsSeehot dog
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half-duplex

half-duplex

half-duplex

half-cystine

half-cys·tine