- Industry: Telecommunications
- Number of terms: 29235
- Number of blossaries: 0
- Company Profile:
ATIS is the leading technical planning and standards development organization committed to the rapid development of global, market-driven standards for the information, entertainment and communications industry.
A germanium-based PN- or PIN-junction photodiode. Note 1: Germanium photodiodes are useful for direct detection of optical wavelengths from approximately 1 m to several tens of m. Note 2: Germanium-based detectors are noisier than silicon-based detectors. Silicon-based detectors are therefore usually preferred for wavelengths shorter than 1 m.
Industry:Telecommunications
A global radionavigation system that enables user with special receivers to obtain position information by measuring phase difference between precisely timed signals radiated by a network of eight transmitting stations deployed worldwide. Note: The transmitted signals time-share transmission on frequencies of 10. 2, 11. 05, 11. 33, and 13. 6 kHz. Since the transmissions are coordinated with UTC (USNO,) they also provide time reference.
Industry:Telecommunications
A global, virtual-network based hypertext information system that uses the Internet as its transport mechanism to display computer screens (or Web pages) of graphical, video, textual, and even audio information. Note: In a hypertext system, one navigates by clicking hyperlinks, which display another document which also contains hyperlinks. In Web navigation, the next document seen could be housed on a computer next door or half-way around the world. Created in 1989 at a research institute in Switzerland, the Web relies upon browsers and the hypertext transport protocol (http,) an Internet standard that specifies how an application can locate and acquire resources stored on another computer on the Internet. Most Web documents are created using hypertext markup language (html,) a coding system for WWW documents. Incorporating hypermedia (graphics, sounds, animations, video,) the Web has become a popular medium for publishing information on the Internet. With the development of secured server protocol (https,) the Web is now a commercial medium whereby consumers can browse on-line catalogs and purchase merchandise using secure, encrypted credit card information that is protected from interception. Synonym yyWeb.
Industry:Telecommunications
A globally unique identifier representing an individual's identity.
Industry:Telecommunications
A graphic image that serves as a background for a Web page or for a computer operating system's screen.
Industry:Telecommunications
A graphic representation of the phase relationships between two or more waveforms. Note: A phase diagram may be represented as a vector diagram or as an amplitude-vs. -time diagram.
Industry:Telecommunications
A graphic representation of the physical features of a propagation path in the vertical plane containing both endpoints of the path, showing the surface of the Earth and including trees, buildings, and other features that may obstruct the radio signal. Note: Profiles are drawn either with an effective Earth radius simulated by a parabolic arc--in which case the ray paths are drawn as straight lines--or with a "flat Earth"--in which case the ray paths are drawn as parabolic arcs.
Industry:Telecommunications
A graphical representation in which symbols are used to represent such things as operations, data, flow direction, and equipment, for the definition, analysis, or solution of a problem. Synonym flow diagram.
Industry:Telecommunications
A graphical representation in which symbols are used to represent such things as operations, data, flow direction, and equipment, for the definition, analysis, or solution of a problem. Synonym flow diagram.
Industry:Telecommunications
