Signal
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Signal, signals, signaling, or signalling may refer to:
Transportation (unidirectional)
- Traffic light Traffic lights, which may also be known as stoplights, traffic lamps, traffic signals, stop-and-go lights[citation needed], robots or semaphore, are signaling devices positioned at road intersections, pedestrian crossings and other locations to control competing flows of traffic. Traffic lights have been installed in most cities around the world
- Railway signal A signal is a mechanical or electrical device erected beside a railway line to pass information relating to the state of the line ahead to train drivers/engineers. The driver interprets the signal's indication and acts accordingly. Typically, a signal might inform the driver of the speed at which the train may safely proceed, or it may instruct
Communications (bidirectional)
- Beacon Beacons can also be combined with semaphoric or other indicators to provide important information, such as the status of an airport, by the colour and rotational pattern of its airport beacon, or of pending weather as indicated on a weather beacon mounted at the top of a tall building or similar site. When used in such fashion, beacons can be
- Distress signal A distress signal is an internationally recognized means for obtaining help. Distress signals take the form of or are commonly made by using radio signals, displaying a visually detected item or illumination, or making an audible sound, from a distance
- International maritime signal flags The system of international maritime signal flags is a way of representing individual letters of the alphabet in signals to or from ships. It is a component of the International Code of Signals, using the International Code of Signals The International Code of Signals is an international system of signals and codes for use by vessels to communicate important messages regarding safety of navigation and related matters. Signals can be sent by flaghoist, signal lamp , flag semaphore, radiotelegraphy, and radiotelephony
- Maritime flag signalling Maritime flag signalling, generally flaghoist signalling, is the principal means other than radio by which ships communicate to each other or to shore; distinguished from flags showing nationality, ownership, or organizational status. Virtually all signalling by non-naval vessels (whether by flaghoist, semaphore, signal lamp, or other means) is, generally flaghoist signalling, by which ships communicate with each other
- Naval flag signalling Naval flag signalling covers various forms of flag signalling, such as semaphore or flaghoist, used by various navies; distinguished from maritime flag signalling by merchant or other non-naval vessels or flags used for identification, covers various forms of flag signalling, such as semaphore or flaghoist
- Recognition signal A recognition signal is a signal where a person, a ship, an airplane or something else is recognized. They can be used during war or can be used to help the police recognize each other during undercover operations. It can also be used in biology to signal that a molecule or chemical is to be bound to another molecule in human, technical or biological communications
- Semaphore
- Signal (computing) A signal is a limited form of inter-process communication used in Unix, Unix-like, and other POSIX-compliant operating systems. Essentially it is an asynchronous notification sent to a process in order to notify it of an event that occurred. When a signal is sent to a process, the operating system interrupts the process's normal flow of execution, a form of inter-process communication
- Signal (electronics) In the fields of communications, signal processing, and in electrical engineering more generally, a signal is any time-varying or spatial-varying quantity, a time-varying quantity that conveys information
- Signals (military) Military communications, or Signals (not to be confused with military line of communications ), is a field of military activities, tactics and equipment dealing with communications. First of all, military communications are battlefield (combat) communications, including intercommunication with a higher command or country's government, military communications
- Signalling (telecommunications) In the public switched telephone network , in-band signaling is the exchange of call control information within the same channel that the telephone call itself is using. An example is dual-tone multi-frequency signaling (DTMF), which is used on most telephone lines to customer premises, a part of some communication protocols
- Smoke signal In Ancient China, soldiers stationed along the Great Wall would alert each other of impending enemy attack by signaling from tower to tower. In this way, they were able to transmit a message as far away as 480 km in just a few hours
- Telegraphic Telegraphy is the long-distance transmission of written messages without physical transport of letters. It is a compound term formed from the Greek words tele = far and graphein (γραφειν) = write. Radiotelegraphy or wireless telegraphy transmits messages using radio. Telegraphy includes recent forms of data transmission such as fax, email,
Names
- Signal (band), a Bulgarian rock band
- Signals (album), an album by progressive rock band Rush
- Signal (1933), a New York Yiddish-language literary monthly published from 1933 to 1936 by the Communist Party USA The Communist Party of the United States of America is a Marxist-Leninist political party in the United States
- Signal (magazine) Signal was a modern, glossy, illustrated photo journal and army propaganda tool, meant specifically for audiences in neutral, allied, and occupied countries. It was available in the United States in English until December 1941. A German edition was distributed in Switzerland and to various other countries with a strong German military presence,, a Nazi propaganda Propaganda, the coordinated attempt to influence public opinion through the use of media, was skillfully used by the Nazi Party in the years leading up to and during Adolf Hitler's leadership of Germany . Nazi propaganda provided a crucial instrument for acquiring and maintaining power, and for the implementation of their policies, including the magazine which was published in occupied Europe German–occupied Europe refers to the countries of Europe which were occupied by the military forces of Nazi Germany at various times during World War II between 1939 and 1945 during World War II Albania · Australia · Austria · Azerbaijan · Belarus · Belgium · Brazil · Bulgaria · Burma · Cambodia · Canada · Ceylon (Sri Lanka) · Channel Islands · China · Czechoslovakia · Denmark · Dutch East Indies · Egypt · Estonia · Finland · France · Germany · Gibraltar · Greece · Greenland · Hong Kong · Hungary · Iceland ·
- The Signal, a 2007 horror film
- Signal (toothpaste) Signal is a toothpaste and a mouth wash produced by The Unilever company. Present in the market for over 40 years, it is available in over 48 countries
- Signal 1 Signal One is an Independent Local Radio station broadcasting from studios in Shelton, Stoke-on-Trent to Staffordshire and Cheshire, England on 96.4 , 96.9 (Pye Green) and 102.6 MHz FM (Alsagers Bank) for Cheshire, Stafford and North Staffordshire respectively. It also broadcasts on the Stoke "UTV-EMAP Stoke-on-Trent" DAB multiplex 12D and Signal 2 Signal 2 is an Independent Local Radio station broadcasting from studios in Shelton, Stoke-on-Trent to Staffordshire and Cheshire, England. The station is owned by UTV Radio and runs a "gold format" playlist radio stations
- Signaal (now Thales Nederland), a Dutch defense company
- Signal Systems, a telecommunications company of the McLean Group of Companies
- Signal - The Southeast Electronic Music Festival, an annual music festival held in the United States
- Signal, a children's novel about a boy who helps a girl from another planet signal her parents
- USS Signal, the name of more than one United States Navy ship
Other
- Any implicit, subtle, or disguised message, in situations such as:
- Signalling In economics, more precisely in contract theory, signalling is the idea that one party conveys some meaningful information about itself to another party (the principal). For example, in Michael Spence's job-market signalling model, (potential) employees send a signal about their ability level to the employer by acquiring certain education in economic theory
- Partnership card games (see Signal (bridge) In the card game of contract bridge, the partners defending against a contract may choose particular cards to play to communicate a signal)
- Signals in legal citations
- Kent (game) a card game also known as Signal or Kemp
See also
- Signal velocity The signal velocity is the speed at which a wave carries information. It describes how quickly a message can be communicated between two separated parties. Every signal velocity is always slower than (or equal to) the speed of a light pulse in a vacuum (by Special Relativity)
- The Signal
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What signals does a referee make when a wrestler suffers a legitimate injury?
Q. What signal(s) does the referee make when a wrestler is really injured? Do the signals make it possible to tell that it is real and not just a spot? Do you have any video footage that shows this actually occuring?
Asked by bigwheels1031 - Sat May 3 13:06:14 2008 - - 4 Answers - 0 Comments
A. Its a X with his hands for example watch the reff at 8:03 and 8:14 or 02:38-02:41
Answered by Est.1992 - Sat May 3 14:44:36 2008
Q. What signal(s) does the referee make when a wrestler is really injured? Do the signals make it possible to tell that it is real and not just a spot? Do you have any video footage that shows this actually occuring?
Asked by bigwheels1031 - Sat May 3 13:06:14 2008 - - 4 Answers - 0 Comments
A. Its a X with his hands for example watch the reff at 8:03 and 8:14 or 02:38-02:41
Answered by Est.1992 - Sat May 3 14:44:36 2008
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