- Industrie: 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.
Set of software, firmware, and hardware (where any of these three could be absent) that mediates the access of a set S of subjects to a set O of objects on the basis of a stated access mediation policy P and satisfies the properties: (1) M mediates every access to objects in O by subjects in S; (2) M is tamper resistant; and (3) M is small enough to be subject to analysis and tests, the completeness of which can be assured.
Industry:Telecommunications
Sets of data telecommunications protocols and interfaces defined by CCITT (now, ITU-T) Recommendations. Note: Some of the more common X. -series Recommendations are:X. 25: A Recommendation for public packet switched communications between a network user and the network itself. X. 75: A Recommendation for public packet switched communications between network hubs. X. 400: An addressing scheme for use with e-mail. X. 500: An addressing scheme for directory services.
Industry:Telecommunications
Sets of telecommunications protocols and interfaces defined by CCITT (now ITU-T) Recommendations. Note: Some of the more common V. -series Recommendations are:V. 21: A CCITT Recommendation for modem communications over standard commercially available lines at 300 b/s. This protocol is generally not used in the United States. V. 22bis: A CCITT Recommendation for modem communications over standard commercially available voice-grade channels at 2,400 b/s and below. V. 32: A CCITT Recommendation for modem communications over standard commercially available voice-grade channels at 9. 6 kb/s and below. V. 32bis: A CCITT Recommendation for modem communication over standard commercially available voice-grade channels at 14. 4 kb/s and below. V. 34: An ITU-T Recommendation for modem communication over standard commercially available voice-grade channels at 28. 8 kb/s and below. V. 42: A CCITT Recommendation for error correction on modem communications. V. 42bis: A CCITT Recommendation for data compression on a modem circuit. V. FAST: A new CCITT Recommendation for high-speed modems currently under development.
Industry:Telecommunications
Setting the state of a cryptographic logic prior to key generation, encryption, or other operating mode.
Industry:Telecommunications
Short-term variation or instability in the duration of a specified time interval.
Industry:Telecommunications
Sideband transmission in which only one sideband is transmitted. Note: The carrier may be suppressed.
Industry:Telecommunications
Signal distortion resulting from a shift in the bias. 2. In binary signaling, distortion of the signal in which all the significant intervals have uniformly longer or shorter durations than their theoretical durations. Note: Bias distortion is expressed in percent of the system-specified unit interval.
Industry:Telecommunications
Signal distortion resulting from reflected waves in a transmission line that is many wavelengths long and mismatched at both the generator and the load ends.
Industry:Telecommunications
Signal distortion that results when the rate of change of phase shift with frequency over the necessary bandwidth of the signal is not constant. Note: Envelope delay distortion is usually expressed as one-half the difference between the delays of the two extremes of the necessary bandwidth.
Industry:Telecommunications
Signal processing that restores a signal so that it conforms to its original characteristics.
Industry:Telecommunications
