- Branche: 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 stable device that emits signals at equal intervals such that their count may be used as a clock.
Industry:Telecommunications
A stable oscillator used for frequency calibration or reference. Note 1: A frequency standard generates a fundamental frequency with a high degree of accuracy and precision. Harmonics of this fundamental frequency are used to provide reference points. Note 2: Frequency standards in a network or facility are sometimes administratively designated as "primary" or "secondary. " The terms "primary" and "secondary," as used in this context, should not be confused with the respective technical meanings of these words in the discipline of precise time and frequency.
Industry:Telecommunications
A stable oscillator used for frequency calibration or reference. Note 1: A frequency standard generates a fundamental frequency with a high degree of accuracy and precision. Harmonics of this fundamental frequency are used to provide reference points. Note 2: Frequency standards in a network or facility are sometimes administratively designated as "primary" or "secondary. " The terms "primary" and "secondary," as used in this context, should not be confused with the respective technical meanings of these words in the discipline of precise time and frequency.
Industry:Telecommunications
A standard compression algorithm, used in digital communications systems of the European digital hierarchy, to optimize, i.e., modify, the dynamic range of an analog signal for digitizing. Note: The wide dynamic range of speech does not lend itself well to efficient linear digital encoding. A-law encoding effectively reduces the dynamic range of the signal, thereby increasing the coding efficiency and resulting in a signal-to-distortion ratio that is superior to that obtained by linear encoding for a given number of bits.
Industry:Telecommunications
A standard cross section of cable conductors for use in equating the metallic content of cable conductors of all gauges to a common base.
Industry:Telecommunications
A standard device or functionality providing secure procedures in support of registration, authentication, and privacy for wireless access to PCS, and which may also be used to facilitate other services (e.g., UPT, banking. )
Industry:Telecommunications
A standard fixed frequency from which operational frequencies may be derived or with which they may be compared. Note: The reference frequency may be used to specify an assigned frequency or fix a characteristic or carrier frequency. 2. A frequency having a fixed and specific position with respect to the assigned frequency. The displacement of this frequency with respect to the assigned frequency has the same absolute value and sign that the displacement of the characteristic frequency has with respect to the center of the frequency band occupied by the emission.
Industry:Telecommunications
A standard form of message, that has elements that usually are understood by prearrangement among the originator, the addressee, and the communications system operators.
Industry:Telecommunications
A standard format for placing fields and directories on CD ROM, revised and adopted by the International Organization for Standardization as ISO 9660.
Industry:Telecommunications
A standard or specification that is recognized as appropriate for normative reference in a profile by the body adopting that profile, but is not a profile itself.
Industry:Telecommunications
