Data transmission over a circuit capable of transmitting in either direction, but not simultaneously For Ethernet, the CSMA/CD method is a half duplex protocol
Means that communications between two end points can not take place at the same time A short wave radio conversation between two people is half-duplex because the person talking has to press the transmit button to talk, and while the transmit button is pressed he can not hear the other party Telephone conversations are not half duplex because the parties at each end of the connection can talk to one another at the same time See Full Duplex
A channel communications protocol that allows a channel to transmit data in both directions but not at the same time In RFID, the method of information exchange in which the information is communicated after the transceiver has stopped transmitting the activation field Compare Full Duplex
Alternating the direction of transmission of signals between two terminals or computers but not transmitting in both directions simultaneously Contrast with duplex
A possible property of a data-communications line: that data can be transferred in either direction, but only in one direction at a time If the line is sufficiently high-speed, then to a human, it may appear that data transfer is simultaneous in both directions if the two ends quickly take turns transferring The alternatives are Half Duplex and Simplex
Alternating the transmission and reception of information between users Sometimes also referred to as "Ping-Pong" operation This is the basic mode of operation of most TDD and TDMA systems, where transmission and reception are separated in time
A communication setup in which transmissions can go in either direction, but in only one direction at a time With half-duplex operation, the entire bandwidth can be used for the transmission In contrast, full-duplex operation must split the bandwidth between the two directions