- Industry: Telecommunications
- Number of terms: 29235
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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.
In signal compression, the ratio of the dynamic range of compressor input signals to the dynamic range of the compressor output signals. Note: The compression ratio is usually expressed in dB. For example, a 40-dB input range compressed to a 30-dB output range would be equivalent to a 10-dB compression. 2. In digital facsimile, the ratio of the total pels scanned for the object to the total encoded bits sent for picture information. 3. The ratio of the gain of a device at a low power level to the gain at some higher level. Note: The compression ratio is usually expressed in dB.
Industry:Telecommunications
In Signaling System 7 (SS7) switching, information contained in the calling-party number parameter, which information indicates whether the calling party authorizes presentation of the calling-party number (caller ID) to the called party.
Industry:Telecommunications
In signaling, the process of allocating substitute routes for a given signaling traffic stream in case of failure (s) affecting the signaling links or routes involved in the normal routing of that signaling traffic stream. 2. In signaling, the routing of a given signaling traffic flow in case of failures affecting the signaling link (s,) or route (s,) involved in the normal routing of that signaling traffic flow. Synonym alternate routing.
Industry:Telecommunications
In some operating system (OS) architectures, the OS functions that may be implemented through a central element and one or more remote elements that may do such work as area resource control or area reports.
Industry:Telecommunications
In sonar systems, a device (a) that is used to detect acoustic waves, such as those produced by ships and submarines, (b) that, when activated, relays information by radio, (c) that may be active or passive, and (d) that may be directional or nondirectional.
Industry:Telecommunications
In spectroscopy, an optical source that emits one or more spectrally narrow lines as opposed to a continuous spectrum. 2. In the geometric sense, an optical source having an emitting area in the form of a spatially narrow line, e.g., a slit. Synonym slit source.
Industry:Telecommunications
In spectroscopy, an optical source that emits one or more spectrally narrow lines as opposed to a continuous spectrum. 2. In the geometric sense, an optical source having an emitting area in the form of a spatially narrow line, e.g., a slit. Synonym slit source.
Industry:Telecommunications
In spread-spectrum systems, a code that is generated by summing, using modulo-two addition, the outputs of two spread-spectrum code-sequence generators.
Industry:Telecommunications
In spread-spectrum systems, modulation in which a sequence of binary pulses is used directly to modulate a carrier, usually by phase-shift keying. Synonym direct-spread modulation.
Industry:Telecommunications
In spread-spectrum systems, phase modulation in which one binary code sequence is shifted with respect to another, usually to conduct a synchronizing search, i.e., a search to discover if the two sequences are the same, and perhaps thereby enabling two data streams to be synchronized.
Industry:Telecommunications
