- 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.
A system of circuits or channels allocated to furnish communication paths between switching centers to provide communication service on a common basis to all connected stations or subscribers. It is sometimes described as a general purpose network.
Industry:Telecommunications
A system of circuits or channels allocated to furnish communication paths between switching centers to provide communication service on a common basis to all connected stations or subscribers. It is sometimes described as a general purpose network.
Industry:Telecommunications
A system of computer networks (usually funded by individuals or organizations) consisting of community-based bulletin board systems with, e.g., e-mail, information services, interactive communications, and conferencing, and that are available to the user free of charge, or for a small membership fee. See free net.
Industry:Telecommunications
A system of error control based on the formation of a block check following preset rules. Note 1: The block check formation rules are applied in the same manner to each character. Note 2: A combination of longitudinal and vertical redundancy check allows the detection and correction of single bit errors. Synonym horizontal redundancy check.
Industry:Telecommunications
A system of error control for data transmission wherein the receiving device has the capability to detect and correct any character or code block that contains fewer than a predetermined number of symbols in error. Note: FEC is accomplished by adding bits to each transmitted character or code block, using a predetermined algorithm.
Industry:Telecommunications
A system of horizontal guidance embodied in the instrument landing system which indicates the horizontal deviation of the aircraft from its optimum path of descent along the axis of the runway.
Industry:Telecommunications
A system of receiving radio beacon signals and rebroadcasting them on the same frequency to confuse navigation. The meaconing stations cause inaccurate bearings to be obtained by aircraft or ground stations.
Industry:Telecommunications
A system of sending telephone calling signals in which the digits are transmitted by operation of a pushbutton key set. Note: The type of key pulsing commonly used by users and PBX operators is dual-tone multifrequency signaling. Each pushbutton causes generation of a unique pair of tones. In military systems, pushbuttons are also provided for additional signals, such as precedence. Synonym yypulsing.
Industry:Telecommunications
A system of storage and handling designed to prohibit individual access to certain COMSEC keying material by requiring the presence of at least two authorized persons, each capable of detecting incorrect or unauthorized security procedures with respect to the task being performed.
Industry:Telecommunications
A system of synchronization in which signals from a single location are used to synchronize clocks at one or more other locations. Synonym unilateral control system.
Industry:Telecommunications
