- 産業: 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.
1. In a set of data, such as a data field, block, or stream, being processed or transported, the part that represents user information and user overhead information, and may include user-requested additional information, such as network management and accounting information. Note: The payload does not include system overhead information for the processing or transportation system. Synonym mission bit stream. 2. The interface rate minus frame overhead. This is the act capability for information transfer provided for the next lower level of the hierarchy. 3. The 192 information bits of a DS1 frame.
Industry:Telecommunications
1. In computer and communications security , the central part of a computer or communications system hardware, firmware, and software that implements the basic security procedures for controlling access to system resources. 2. A self-contained usually small collection of key security-related statements that (a) works as apart of an operating system to prevent unauthorized access to, or use of, the system and (b) contains criteria that must be met before specified programs can be accessed. 3. Hardware, firmware, and software elements of a trusted computing base implementing the reference monitor concept. Security kernel must mediate all accesses, be protected from modification, and be verifiable as correct. 4. The hardware, firmware, and software elements of a Trusted Computing Base that implement the reference monitor concept. It must mediate all accesses, be protected from modification, and be verifiable as correct.
Industry:Telecommunications
1. In communication systems, a count that is made of the number of times that an event or condition occurs. 2. In telephone systems, the process that provides counts of the calls of different service classes that occur during intervals of such frequency as to reliably indicate the traffic load. 3. A count of the attempts to seize, or a count of the actual seizures that occur, of various types of telephone trunks, access lines, switches, or other equipment.
Industry:Telecommunications
1. In color television technology, any of several electronically generated video test patterns displayed as vertical bars of usually equal width, and of specified color (e.g., 6 hues, plus gray and black) and intensity, used to establish or verify a proper color reference; e.g., prior to broadcasting or recording. 2. Loosely, the signal that produces color bars.
Industry:Telecommunications
1. In audio programming, recording, or mixing, to combine signals in such a manner that one channel or source fades out as another fades in, while maintaining an essentially constant program volume. 2. The result produced thereby.
Industry:Telecommunications
1. In an electronic device, e.g., a communications system receiver, or detection device, e.g., PIN diode, the minimum input signal required to produce a specified output signal having a specified signal-to-noise ratio, or other specified criteria. Note 1: The signal input may be expressed as power in dBm or as field strength in microvolts per meter, with input network impedance stipulated. Note 2: "Sensitivity" is sometimes improperly used as a synonym for "responsivity. " 2. In INFOSEC, a measure of the importance assigned to information by its owner, for the purpose of denoting its need for protection. 3. The characteristic of a resource which implies its value or importance, and may include its vulnerability.
Industry:Telecommunications
1. In ac power distribution, the conductor that (a) is intentionally grounded on the supply side of the service disconnect and (b) provides a current return path for ac power currents. 2. In three-phase ac "Y," i.e., wye, power distribution, the low-potential fourth wire that conducts only that current required to achieve electrical balance, i.e., to provide a return path for any current imbalance among the three phases.
Industry:Telecommunications
1. In a tristimulus color monitor (i.e., CRT) that employs phosphors excited (driven) by one or more electron beams, the process of controlling the beam (s) to ensure that the individual phosphors representing the color elements within each pixel are properly driven so that (a) within a given pixel there is a proper color balance to ensure the illusion of white, and (b) there is no spillover to adjacent pixels, causing false colors. 2. An analogous process applied to other types of color displays; e. G. , a projection system using three spatially separated monochromatic CRTs, each generating a different color, and in which the three projected color images are superimposed on the projection screen, by means of off-axis optics, to achieve the illusion of white. 3. The calibration process performed to achieve the required proper color balance. 4. The result of such a calibration process, or the degree to which the ideal result is achieved.
Industry:Telecommunications
1. In a system , a shared boundary, i.e., the boundary between two subsystems or two devices. 2. A shared boundary between two functional units, defined by specific attributes, such as functional characteristics, common physical interconnection characteristics, and signal characteristics. 3. A point of communication between two or more processes, persons, or other physical entities. 4. A point of interconnection between user terminal equipment and commercial communications facilities. 5. To interconnect two or more entities at a common point or shared boundary. 6. A common boundary between independent systems or modules where interactions take place. 7. The point of interconnection between two distinct but adjacent communications systems having different functions. The interface in the communication-satellite service is that point where communications terminal equipment of the terrestrial common carriers or other authorized entities interconnects with the terminal equipment of the communication-satellite earth station complex. The interface in the communication-satellite service shall be located at the earth station site, or if this is impracticable, as close thereto as possible. 8. The shared boundary between two functional units, defined by functional characteristics and other characteristics, as appropriate.
Industry:Telecommunications
1. In a set of data, such as a data field, block, or stream, being processed or transported, the part that represents user information and user overhead information, and may include user-requested additional information, such as network management and accounting information. Note: The payload does not include system overhead information for the processing or transportation system. Synonym mission bit stream. 2. The interface rate minus frame overhead. This is the act capability for information transfer provided for the next lower level of the hierarchy. 3. The 192 information bits of a DS1 frame.
Industry:Telecommunications
