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Topic: Simplex communication

Related Topics

Duplex communication

Repeater

Television

33 centimeters

Thermal conductivity

Sumerian mythology

History of the Philippines

	Radio Technology
		In simplex communication, there is a one-way communication between the sender or transmitter and the receiver.
		Simplex communications is nowadays mostly limited to broadcast applications.
		The third form of radio communication after simplex and duplex communication is half duplex communication.
	cbdd.wsu.edu /kewlcontent/cdoutput/TR502/page45.htm (321 words)

	[No title] (Site not responding. Last check: 2007-11-03)
		An additional challenge encountered by the communications industry is the development of satellite communication systems which support the use of selective call units that are compact and that have a battery life performance comparable to existing selective call units used domestically today.
		Simplex communication allows SCR's 2 to be manufactured as small inexpensive units that consume low amounts of power.
		During a communication cycle 202 (preferably having a duration of 194.4 sec), the communication protocol 200 comprises nine block intervals 204 (each preferably having a duration of 21.6 sec).
	www.wipo.int /cgi-pct/guest/getbykey5?KEY=98/49788.981105&ELEMENT_SET=DECL (6482 words)

	Define duplex - a Whatis.com definition - see also: simplex
		In telecommunication, duplex communication means that both ends of the communication can send and receive signals at the same time.
		Simplex communication means that communication can only flow in one direction and never flow back the other way.
		Most inexpensive speakerphones in conference rooms are half-duplex communication.
	searchnetworking.techtarget.com /sDefinition/0,,sid7_gci212017,00.html (169 words)

	A pragmatic view of computer networks
		Communication between computers is the same, except that computers exchange bits of information.
		Simplex communication is usually when sending a report such as logged data or when sending a command, neither of these communications necessarily requires a response from the other side.
		As a simple example, the protocol may require that the name of the recipient be communicated before the content for the recipient, for every exchange.
	www.cs.mu.oz.au /353/notes/node10.html (1036 words)

	Data Communications Basics
		It is the aim of any communications system to provide the highest possible transmission rate at the lowest possible power and with the least possible noise.
		Information sent through a communications channel has a source from which the information originates, and a destination to which the information is delivered.
		When communication with the peripheral is necessary, data is first deposited in the holding register by the microprocessor.
	www.camiresearch.com /Data_Com_Basics/data_com_tutorial.html (4380 words)

	Future communication Horizon :: Simplex services
		Simplex is available in both dedicated speeds, and burstable service options.
		FCHorizon simplex solution is an add-on service that does not require a transmitter, transmission license or a satellite return circuit to FCHorizon’s facilities.
		Simplex service solution allows you to increase your inbound bandwidth only, which is more cost effective for your business.
	www.fchorizon.com /simplex.html (174 words)

	[No title] (Site not responding. Last check: 2007-11-03)
		Again, because the dispatch unit of a PTT dispatch system is inherently different than a field unit, a field unit cannot normally be used as an alternative dispatch unit in the event of failure of the dispatch unit.
		Simplex PTT communication system 20 utilizes conventional cellular telephone services 32 and 34 in a telecommunication network 24.
		Although the preferred embodiments of the invention have been illustrated and described in detail, it will be readily apparent to those skilled in the art that various modifications may be made therein without departing from the spirit of the invention or from the scope of the appended claims.
	www.wipo.int /cgi-pct/guest/getbykey5?KEY=01/56236.010802&ELEMENT_SET=DECL (11323 words)

	Roxen Community: RFC 46 ARPA Network Protocol Notes () (Site not responding. Last check: 2007-11-03)
		Communication between two processes is made through a simplex connection between two sockets: a send socket attached to one process and a receive socket attached to another process.
		An NCP may test the quality of communications between it and a foreign NCP by directing to it an ECO command with an arbitrary <48 bit code> (of the same length as a socket identifier) and 'on'.
		The way that communication is established is essentially as follows: the requestor process first reserves four of its sockets having contiguous socket codes.
	community.roxen.com /developers/idocs/rfc/rfc46.html (4802 words)

	Hamquick Technician Class Tutorials
		Simplex operation is where a station is transmitting and receiving on the same frequency.
		Simplex operation should be used instead of repeaters when communication with the intended station is possible without using the repeater.
		This term is used primarily on FM simplex and repeater use to indicate your signal strength.
	www.hamquick.com /tutorial_index.php?id=11 (570 words)

	Duplex vs. Simplex
		Simplex links are built so that the transmitter (the one talking) sends a signal and it's up to the receiving device (the listener) to figure out what was sent and to correctly do what it was told.
		You must use connectionless protocols with simplex circuits as no acknowledgement or return traffic is possible over a simplex circuit.
		Full duplex communication is two-way communication achieved over a physical link that has the ability to communicate in both directions simultaneously.
	www.inetdaemon.com /tutorials/theory/concepts/duplex_vs_simplex.shtml (402 words)

	Yuba-Sutter Amateur Radio Club
		The repeater or simplex decision would be made on the basis of the area and distance to be covered and the coverage to be expected from the two methods.
		Communications for a bike ride will usually mean keeping track of the SAG Vehicles and EMT's as well as medical and safety problems at the rest stops.
		One that will impact the communicators is that the organizers either do not allow enough time for planning or that they do not realize the magnitude of the undertaking.
	users.cwnet.com /ysarc/p25.htm (4078 words)

	Signalling and control protocol for a communication system (EP0370826B1)
		If a communication channel is available, the central station returns a channel grant (210), which includes a time code representing a time duration during which the requesting subscriber may communicate.
		After receiving the channel grant (210), the subscriber unit may communicate for a time interval not exceeding the time duration, and, immediately prior to the expiration of the time duration, the subscriber unit may itself provide a warning tone indicating the impending loss of the communication channel.
		Conversely, if a communication channel is not available, the central station provides a busy message (216), which includes a code (218) representing the requesting subscriber unit's position is a call request queue.
	www.delphion.com /details?pn=EP00370826B1 (477 words)

	[No title]
		The safety communication module for a given application meets both basic and application-specific stability requirements, although it may not be the most efficient protocol.
		Communication is essential for the robots to position themselves optimally as well as to avoid collisions as they move.
		A faulty communicator went undetected in a few cases where software faults were introduced only on one node and the error rate at the node was very small.
	www-osl.cs.uiuc.edu /docs/snpa03/snpa03.doc (8494 words)

	TmP - Networks
		In the previous chapiter, it was said that the communication system was in charge of the information transfer and the right delivery to the final user.
		In such a system, the layer N of a machine is in charge of the communication with the layer N of another machine using one or several protocols and underlying layers.
		As a machine may run several processes (or programs) that may use the network resources, and as a machine may communicate with many other processes, it is essential that every layer has a mechanism ti identify senders (local processes) and receivers (remote processes).
	www2.themanualpage.org /networks/networks_software.php3 (1668 words)

	CIS 415L - Key Terms #1
		Simplex channels are not often used because it is not possible to send back error or control signals to the transmit end.
		In Asynchronous communication there are no additional signal lines used to convey clock (timing) information (as in a Parallel data bus), this method groups data together into a sequence of bits (five - eight), then prefixes them with a start bit and adds stop bit(s).
		Synchronous communications is used mainly by mainframe and minicomputers, while microcomputers almost exclusivly use asynchronous communication.
	www.delmar.edu /Courses/CIS415L/KeyTerm1.htm (2501 words)

	FEEE - Fundamentals of Electrical Engineering and Electronics: Data flow (Site not responding. Last check: 2007-11-03)
		With simplex communication, all data flow is unidirectional: from the designated transmitter to the designated receiver.
		Half-duplex communication may be likened to two tin cans on the ends of a single taut string: Either can may be used to transmit or receive, but not at the same time.
		Full-duplex communication is more like a true telephone, where two people can talk at the same time and hear one another simultaneously, the mouthpiece of one phone transmitting the the earpiece of the other, and vice versa.
	www.vias.org /feee/commun_04.html (266 words)

	[No title]
		Communications, the transmission of data across communications lines, is the key to sharing.
		Basic components are a sending device, a communications link, and a receiving device.
		Asynchronous and synchronous transmission help computers coordinate their communications by providing signals to mark the start/stop of a message or by coordinating the timing of the transmission.
	www.apsu.edu /lij/05f1005/notes/ch07notes.htm (786 words)

	CEN 4500C - Data Link Control
		The directionality and temporal constraints on use of the medium are captured by the notion of duplexity.
		Simplex links are often used as parts of a full duplex connection, and may be used for true simplex communication in sensor networks, for monitoring, and in broadcast radio and television.
		A hybrid scheme may use a primary station to set up communication resources for a pair (or a set) of secondaries, using one method to allow a secondary to request a reservation and then using reservation techniques for the secondaries to carry out their conversation.
	www.cise.ufl.edu /~nemo/cen4500/data_link.html (2380 words)

	Popular Wireless Magazines: GMRS & FRS Frequently Asked Questions
		The convenience and simplicity of two-way push-to-talk communication demonstrates how complicated a cellular phone really is. When you are in radio range of your partner you can use two-way radio communication rather than a telephone system.
		FRS is limited to local communication and it tends to be quite reliable depending on the terrain and surrounding obstructions.
		Your simplex communication can be anything between your family operating under your license and your friends operating under their license and should be of no concern to anyone else.
	www.popularwireless.com /gmrsfaqa.html (9298 words)

	Futaba
		This technique provides high levels of communication reliability and security, and typically enables higher data transmission rates than are achieved with narrowband carriers.
		– A form of modulation (commonly used in spread spectrum communications) in which a code sequence is used to directly modulate a narrowband carrier (usually by phase-shift keying) and continuously distribute or spread the narrowband carrier over a much broader portion of an assigned frequency range.
		An example of simplex communication is a conventional pager.
	www.futaba.com /products/irc/technology/index.asp (2407 words)

	Nady (Site not responding. Last check: 2007-11-03)
		Nady has been producing communication systems and alarms for the motorcycle accessories market for over 15 years and is the leader in innovation and variety of choice as well as price, performance and quality.
		Bike-to-bike communication can be either push-to-talk (using either the PTT control on the unit or the external handle-bar mount button) or automatic voice-activated (with low or high VOX sensitivity select).
		Radio communication is simplex, so any number of users can converse on a one-at-a-time basis.
	www.helmetharbor.com /gear/communicators/nady/nadyopening.htm (781 words)

	Coper (Site not responding. Last check: 2007-11-03)
		The communication link is transparent as if there is a perfect link and no protocols are required to communicate over this media.
		Simplex communication is possible with baud rates of up to 250Kb and distances of up to 1Km.
		· Simplex (one direction communication) This is available in one direction I/O transfer with error check and no communication contact as communication failure output.
	users.iafrica.com /g/gi/giga/Coper.htm (226 words)

	An Overview Of Cellular As A Wireless Communication Method (Site not responding. Last check: 2007-11-03)
		Cordless communication in a relative large area used to be running in some places, but it turned out to be not so practical, since in order to reach a larger area, let's say 100km in radius, we need to do and suffer much.
		Cellular communication mode is has many advantages, which cordless telephony used to be lack of, such as high capacity, low interference, less power needed, and etc. Actually the idea from cellular was exploited by satellite communication researchers, and that is how LEO became so popular in current communication research work.
		One of the drawbacks of traditional wide-area radio communication systems is that the capacity is low, since within the whole communication range basically there exists only one communication channel per frequency.
	www.cs.sfu.ca /~yzchen/personal/htmls/prj_cellular/prj_cellular.htm (3551 words)

	FanFiction.Net : Dictionary & Thesaurus (Site not responding. Last check: 2007-11-03)
		Used to describe a communications channel that can only ever carry a signal in one direction, like a one-way street.
		Television is an example of (broadcast) simplex communication.
		Simple or single; as, charta simplex, is a deed-poll, of single deed.
	www.fanfiction.net /dictionary.php?word=simplex (60 words)

	C5 1.0 man pages
		Basically, all CPU boards involved in the communication domain are seen (by protocol stacks) as CPU boards connected to the same Ethernet LAN.
		In addition, for the ethernet frames transfer, the buseth driver uses the basic communication protocol which is provided by the middle level busmux driver.
		The buseth communication driver uses the new device handler invocation in order to connect to the busmux device as well as to the Rx and Tx channels.
	www.jaluna.com /doc/c5/html/ManPages/hman9drv/buseth.9drv.html (649 words)

	RFC 46 (rfc46) - ARPA Network protocol notes (Site not responding. Last check: 2007-11-03)
		To implement the interrupt as a special format within a normal message raises severe difficulties: the connection may be blocked when the interrupt is needed, and the NCP must scan each incoming message for an interrupt signal.
		Sockets Communication between two processes is made through a simplex connection between two sockets: a send socket attached to one process and a receive socket attached to another process.
		Network Test Command ECO <48 bit code> An NCP may test the quality of communications between it and a foreign NCP by directing to it an ECO command with an arbitrary <48 bit code> (of the same length as a socket identifier) and 'on'.
	www.faqs.org /rfcs/rfc46.html (5031 words)

	: Class Uart
		Creates and initialises a new Uart for simplex communication using no handshaking.
		Reinitialises the Uart for simplex communication using no handshaking.
		Reinitialises the Uart for simplex communication using hardware (RTS/CTS) handshaking.
	www.parallax.com /javelin/doc/stamp/core/Uart.html (922 words)

	Simplex - A Powerful Problem Solving Process Mind Tools
		Rather than seeing creativity as a single straight-line process, Simplex sees it as the continuous cycle it should be.
		The Simplex Process is a powerful, sophisticated approach to innovation.
		This book explains in detail how to use Min Basadur's 'Simplex Process' - a structured approach to creativity which ensures that problems are properly researched and formulated, that a variety of possible solutions are evaluated, and that these solutions are implemented effectively.
	www.mindtools.com /pages/article/newCT_10.htm (1822 words)

	Networking
		Fiber Optic communication can achieve a theoretical limit exceeding 50,000 Gbps or 50 Tbps (Tera-bits per second).
		Fiber technology is not unidirectional (it is simplex) therefore at least to fibers have to be together in order to have simplex communication.
		Full-Duplex - Two way communication that most of the world is used to, the signal can travel both directions at the same time.
	home.cfl.rr.com /ravon/networking.htm (940 words)

	RFC46
		We feel that three facilities must be provided for in the initial protocol: 1.
		RFC 46 ARPA Network Protocol Notes April 1970 message raises severe difficulties: the connection may be blocked when the interrupt is needed, and the NCP must scan each incoming message for an interrupt signal.
		RFC 46 ARPA Network Protocol Notes April 1970 NCP Control Communications The NCP network coordinates its activities through control commands passed between its individual components.
	www.unix.org.ua /rfc/rfc0046.html (5152 words)

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