A circuit that permits transmission in both directions. In CCTV, duplex is often used to describe the type of multiplexer that can perform two functions simultaneously: recording in multiplex mode and playback in multiplex mode.
(1) This term refers to the condition where two-way, simultaneous transmission is possible. (2) It is also the technical term for a common, electrical wall outlet.
Simultaneous, bidirectional independent transmission of data.
Mode of operation permitting the simultaneous transmission and reception of signals.
Communication in both directions, transmit and receive. Also see Full Duplex and Half Duplex.
a term applied to data transmission where data can be both sent and received See also half-duplex and full-duplex; contrast with simplex
A communication mode in which a device can send and receive data over the same link. The device can operate in full-duplex and half-duplex.
Simultaneous transmission in both directions, sometimes referred to as full duplex to differentiate it from half duplex, which is alternating transmission in each direction. Transmission in only one direction is called simplex transmission.
Used in multiplexing terminology, whereby two single (simplex) units are assembled in one unit enabling the system to record all camera images onto the VCR and display them on the monitor simultaneously.
"Duplex" is an old term stemming from the early days of telecommunication. "Duplex" means that two stations can communicate simultaneously in both directions. "Simplex" means that a communication is only possible in one direction, and "Half Duplex " refers to a data transfer or communication in both directions, but not simultaneously.
Mode of transmitting data through a modem. Full duplex allows it to be sent and received simultaneously. Half duplex allows it to be sent and received simultaneously. Half duplex allows it to go in only one direction at a time.
Full and Half Full duplex allows data to be transmitted and received at the same time, so doubling the potential throughput. Half duplex allows data to be either transmitted or received, but not both, at the same time.
Refers to the transmission of data. Full-duplex allows for transmission of data in both directions at the same time. Half-duplex allows for transmission in one direction at one time.
A transmission system allowing data to be transmitted in both directions simultaneously.
In communications, pertaining to a simultaneous, two-way independent transmission in both directions. Also called full-duplex. Compare with: half-duplex and simplex.
A type of multiplexer that allows you to simultaneously record images to tape and display live multiple-picture (or single picture) screen images of security cameras. Another capability that is provided is the ability to record images on one VCR while at the same time playing back previously recorded images on a second VCR. Compare with a simplex multiplexer which provides less features and capabilities.
A facility which permits transmission in both directions simultaneously. Also called full-duplex.
A term used in telecommunications to describe how signals are send. Full duplex means that signals can be sent simultaneously back and forth. Half duplex means that signals can go only in one direction at a time.
Refers to the ability to transfer data in both directions. Half-duplex allows for data transfer in one direction at a time; full-duplex allows for data transfer in both directions at the same time. Thus, if you have a 100Base-T full-duplex NIC, your theoretical bandwidth is 200 Mbps (100 Mbps in each direction). This is made possible becuase Cat-5 cable has separate wires for sending and receiving.
In asynchronous transmissions, the ability to transmit and receive on the same channel at the same time; also referred to as full duplex. Half-duplex channels can transmit only or receive only.
A system that can handle two simultaneous channels of video, audio or data signals
Communication: The ability to transmit and receive at the same time; also referred to as full duplex. Half-duplex circuits can receive only or transmit only. Terminals: A choice between displaying locally generated characters and echoed characters.
The ability to send and receive signals at the same time. Cell phones are duplex, so you can talk and hear together. Two-way radios are simplex and only one person can talk at a time.
allowing communication in opposite directions simultaneously; "duplex system"; "duplex telephony"
The ability of a scanner to scan both sides of a sheet simultaneously. Requires two scanner cameras and often two processing boards.
A method of transmitting and receiving via two different “channels” or paths. Full duplex means transmit and receive can occur simultaneously and half duplex means one function needs to wait for the other to be completed.
Mode in which there exists two-way communications satellite transmission systems. | Previous
The ability in a communications systems to simultaneously transmit and receive signals through a common component such as an antenna.
a machine that generates and audible and visible signal by ultrasound characterizing blood flow in a vessel
Simultaneous two-way independent transmission. The capability of both sides of a connection to send information at the same time. Full duplex is the same as duplex. When you are talking on the telephone to someone you are using duplex (you can both talk at the same time if you want to). See also half duplex. Back to the Top
A telecommunications term that describes communications between terminals capable of transmission in both directions. A half-duplex communication channel can, at any given time, carry data in either one direction or the other, but not both. A full-duplex channel can carry data in both directions at once. In full duplex mode, the remote computer is set up to return the characters that are sent to it so that they can be displayed on your screen. In half-duplex mode, the remote computer does not return the characters.
twoway data transfers. Half duplex is twoway communication, with each end of the system taking turns transmitting. Full duplex is twoway communication that occurs simultaneously.
In tele-communications, duplex means the communication method used by sending and receiving devices. Full-duplex means that both ends of the communication can send and receive signals at the same time. Half-duplex signals can only flow in one direction at a time. Simplex communication means that signals can only flow in one direction and never flow back the other way.
A mode of connection. Full-duplex transmission allows for the simultaneous transfer of information between the sender and the receiver. Half-duplex transmission allows for the transfer of information in only one direction at a time.
In data communications, duplex defines the direction of the transmission. Duplex transmissions are bi-directional as opposed. Duplex are able to transmit in both directions, however, only one at a time, this is known as half duplex. A full duplex transmission can send and receive information at the same time.
A scanner capable of reading both the front and back sides of document simultaneously. This decreases the effort to capture both images.
A diagnostic tool that combines Doppler and ultrasound.
A multiplexer which allows viewing of multiple "pictures" during recording
A communication system that carries information in both direction is called a duplex system. In CCTV, duplex is often used to describe the type of multiplexer that can perform two functions simultaneously, recording in multiplex mode and playback in multiplex mode. It can also refer to duplex communication between a matrix switcher and a PTZ site driver, for example.
Two-way data transfers. "Half duplex" is two-way communication that occurs with each end of the system taking turns transmitting. "Full duplex" is two-way communication that occurs simultaneously.
Full duplex is data is flowing in both directions at the same time. When Remote echo is ON communication is occurring in full duplex. Half Duplex has data moving in only one direction at a time (Local echo is ON).
Simultaneous two-way transmission, such as experienced in a phone conversation. In contrast, many speakerphones are half-duplex and will transmit in only one direction — from the loudest noise — at a time.
In data communication, pertaining to a simultaneous two-way transmission in both directions. Synonymous with full-duplex as opposed to half-duplex.
Simultaneous, two-way independent transmission of data.
The transmission of data in two directions simultaneously; full-duplex allows simultaneous two-way communication, half-duplex allows communication in only one direction at a time.
Full duplex is a communications method that allows for the simultaneous transmission and reception of data. In Half Duplex communication, transmissions and receptions can occur in either direction but not at the same time.
A two way simultaneous data transmission as opposed to a half duplex whereby data can be carried in either direction but not at the same time and simplex which can only carry data in one direction.
a method of frequency in which ship stations transmit on one frequency while shore stations transmit a different frequency
To send signals simultaneously to and from your computer.
A multiplexer with two frame stores allowing it to show multi-screen pictures while performing time multiplex recording.
A technique used in filming to record the front side of a document on one half of the film while on the back side of the same document us simultaneously filmed on the other half.
Describes how you see text entered by the keyboard. When the setting is HALF DUPLEX, all characters entered on your computer for transfer to an online service (or your modem) will be displayed. In addition, you will normally receive an echo from the online service (or modem). The result will often 'bbee lliikkee tthhiiss'. When using the setting FULL DUPLEX, typed characters will not be shown. What you see, are characters echoed back to you from the online service and/or your modem.
In data communications, the simultaneous operation of a circuit in both directions is known as full duplex; if only one transmitter can send at a time, the system is called half duplex. Learn more about Duplex...
The way modems exchange data: half duplex or full duplex. With half duplex transmissions, only one modem can send data at a time. Full duplex transmissions allow both modems to send data simultaneously.
Pertaining to simultaneous two-way independent data communication transmission in both direction. Same as "full duplex".
A mode of communication where a person can talk and listen at the same time. When operating a duplex radio, the transmitter and receiver operate on different frequencies and do so at the same time. A repeater is operated in the DUPLEX mode (so is a telephone).
This mode allows the Transceiver to operate via a local repeater station if available and hence increases the distance of the signal. It does this by linking Channels 1 - 8 to Channels 31 - 38 respectively. If you transmit on CH01 Duplex mode, you are actually transmitting on CH31. The repeater station down converts the signal and re-transmits it on CH01. On standby / receive mode your radio is always tuned to CH01.
Method in which transmission is possible in both directions of a telecommunications channel. Simultaneous two-way operation is known as "full duplex". Operating in only one direction at a time is known as "half duplex" or "simplex."
is a system which can handle simultaneously two channels of video, audio or data signals.
A multiplexer that allows the user to look at multi-screen images while performing time multiplex recording.
Full duplex line/channel allows simultaneous transmission in both directions. Half duplex line/channel is capable of transmitting in both directions, but only in one direction at a time.
Indicates a communications channel capable of carrying signals in both directions. See Half Duplex, Full Duplex.
refers to two-way communications. Full duplex is similar to your phone in that both directions of communication occur at the same time. Half duplex is like a walkie-talkie, two-way communication is possible, however only one party may transmit at a time. Spread spectrum generallyis half duplex, however buffers make it appear as if it is full duplex.
This term is used to describe a multiplexer that will record pictures to tape and display multiple pictures on a single monitor. A duplex multiplexer will continue to record even when a tape is being replayed.
As in ordinary telephone service, a characteristic of a communications system where simultaneous transmission and reception is possible.
A communication channel that allows data to be transmitted in both directions simultaneously.
To perform two functions simultaneously. For example, a DVR can record video while playing back video at the same time.
This term is a telecommunications term that describes part of the communications between a local modem and a remote computer. In full duplex mode, the remote computer is set up to return the characters that are sent to it so that they can be displayed on your screen. In half duplex mode, the remote computer does not return the characters sent to it. Also see full duplex and half duplex for descriptions of the those terms in other contexts.
Au ultrasound scanner which incorporates two modalities, i.e. B-Mode imaging and pulsed wave Doppler.
The ability of a communications channel to transmit data simultaneously in both directions. Also known as Full Duplex.
a mode of communication in which you transmit on one frequency and receive on another frequency (see also half and full duplex)
Simultaneously bi-directional independent transmission in both directions
A process that allows information to flow in both directions at once, like a standard telephone conversation. Contrasts with simplex.
The use of a pair of frequencies for two-way communication without a repeater. Half-duplex is the system used by the New York State Police and by many taxicabs. The cars operate on a different frequency from the base station but must take turns talking. This type of transmission can be called two-frequency simplex. Full-duplex is used by ALS units on the Med channels, as well as by mobile telephones. The base and mobile are on separate frequencies but can both transmit and be heard at the same time, just like a regular telephone conversation.
A channel capable of transmitting data in both directions at the same time. (Half duplex is a channel capable of transmitting data in both directions, but not simultaneously.)
A duplex device can transmit data into and out of the electronic device at the same time. For example, a full duplex multiplexer can continue capturing and recording images even while a different image is being displayed.
"Two-way": Communication can take place in both directions. While in half-duplex mode, the partners alternate at transmitting information, full-duplex means that both of them can transmit and receive at the same time (like on the telephone).
Characteristic of data transmission. Either full or half duplex. Full permits simultaneous, two-way communication. Half means only one side can talk at once.
Used as the physical connections between stations on the FDDI ring to connect fibre optic cables. The connectors are polarised to prevent the transmitting and receiving fibres from becoming inadvertently interchanged.
In a communications channel, the ability to transmit in both directions.
Describes an RF system which has the ability to transmit and receive simultaneously. Used most frequently with regard to telephony.
A system capable of transmitting information in both directions over a communications channel. See also: full-duplex; half-duplex
Communications in which data can be transmitted between two stations in both directions at the same time, with the use of a four-wire circuit. Same as full-duplex.
Duplex is a 2003 comedy film directed by Danny De Vito.
A duplex communication system is a system composed of two connected parties or devices which can communicate with one another in both directions. (The term duplex is not used when describing communication between more than two parties or devices.)
