- Industry: 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.
The line produced on a recording medium frame by a single sweep of a scanner. 2. Synonym scanning line.
Industry:Telecommunications
The level of interference (jamming) that a system is able to accept and still maintain a specified level of performance, such as maintain a specified bit-error ratio even though the signal-to-noise ratio is decreasing.
Industry:Telecommunications
The level of agreement of the frequency of a clock with the ideal frequency. This is specified as the magnitude of the fractional frequency offset from the ideal frequency.
Industry:Telecommunications
The level of acoustic noise existing at a given location, such as in a room, in a compartment, or at a place out of doors. Note 1: Ambient noise level is measured with a sound level meter. Note 2: Ambient noise level is usually measured in dB above a reference pressure level of 0. 00002 Pa, i.e., 20 Pa (micropascals) in SI units. A pascal is a newton per square meter. Note 3: In the centimeter-gram-second system of units, the reference level for measuring ambient noise level is 0. 0002 dyn/cm2. Synonym room noise level.
Industry:Telecommunications
The insertion of noninformation bits into data. Note 1: Stuffed bits should not be confused with overhead bits. Note 2: In data transmission, bit stuffing is used for various purposes, such as for synchronizing bit streams that do not necessarily have the same or rationally related bit rates, or to fill buffers or frames. The location of the stuffing bits is communicated to the receiving end of the data link, where these extra bits are removed to return the bit streams to their original bit rates or form. Bit stuffing may be used to synchronize several channels before multiplexing or to rate-match two single channels to each other. Synonym positive justification.
Industry:Telecommunications
The level of a carrier signal at a specified point in a communications system. Note: The carrier level is usually expressed in dB relative to a specified reference level.
Industry:Telecommunications
The level corresponding to the specified maximum excursion of the luminance signal in the white direction.
Industry:Telecommunications
The level corresponding to the specified maximum excursion of the luminance signal in the black direction.
Industry:Telecommunications
The level at which an indistinguishable signal of interest becomes distinguishable from other signals or noise. Note: In acoustics, the masked threshold is usually expressed in dB.
Industry:Telecommunications
The legitimate requirement of a person or organization to know, access, or possess sensitive or classified information that is critical to the performance of an authorized, assigned mission. 2. The necessity for access to, or knowledge or possession of, specific information required to carry out official duties. See also Least Privilege.
Industry:Telecommunications
