- Industry: Telecommunications
- Number of terms: 29235
- Number of blossaries: 0
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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.
Identification information associated with certain types of electronic key.
Industry:Telecommunications
In a baseband television signal, the DC level (nominally 0 volts) from which the amplitudes of the various components of the signal are measured. Conventionally, the viewable parts of the signal (except subcarriers) are positive with respect to blanking, while the synchronizing pulses are negative with respect to blanking. In North American NTSC signals, the darkest portions of the image (black level) are offset positively with respect to blanking level. This offset is called either pedestal or setup, depending on how it is generated. In almost all other television signals, including component RGB, there is no setup, so black level is the same voltage as blanking level. Synonym pedestal.
Industry:Telecommunications
In a beam with the minimum possible ray divergence or convergence, any mechanism by which rays are caused to diverge or converge from parallelism. Note 1: Decollimation may be deliberate for systems reasons, or may be caused by many factors, such as refractive index inhomogeneities, occlusions, scattering, deflection, diffraction, reflection, and refraction. Note 2: Decollimation occurs in applications such as radio, radar, sonar, and optical communications.
Industry:Telecommunications
In a binary code, the bit or bit position that is assigned to, or represents, the largest quantity or increment that can be represented by the code.
Industry:Telecommunications
In a binary code, the bit or bit position that is assigned to, or represents, the smallest quantity or increment that can be represented by the code.
Industry:Telecommunications
In a bipolar alternate mark inversion (AMI) signal, a "one" condition (mark, pulse) having the same polarity as its predecessor.
Industry:Telecommunications
In a bit stream, the number of bits occurring per unit time, usually expressed in bits per second. Note: For n-ary operation, the bit rate is equal to log2n times the rate (in bauds,) where n is the number of significant conditions in the signal. 2. The rate of transmission of information in binary (two state) form in bits per unit time.
Industry:Telecommunications
In a bit-stream, the maximum rate at which stuffing bits can be inserted into the stream. Synonym maximum justification rate.
Industry:Telecommunications
In a bit-stream, the maximum rate at which stuffing bits can be inserted into the stream. Synonym maximum justification rate.
Industry:Telecommunications
In a block, the ratio of the number of user information bits to the total number of bits. Note: For a given block scheme, block efficiency represents the maximum possible efficiency for a given block scheme transmitted over a perfect transmission link.
Industry:Telecommunications
