- 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.
In the photosphere, i.e., visible disk of the Sun, a dark marking that manifests a magnetic anomaly that is associated with interference with radio communications on Earth. Note: Sunspot activity, i.e., the number of sunspots occurring at a given time or on a given day, is cyclic. The period of a cycle, from maximum through minimum and back to maximum sunspot count, is approximately 11 years.
Industry:Telecommunications
In the presence of an electrical fault, the current that flows in the protective ground wire of a power distribution system.
Industry:Telecommunications
In the processing or transmission of digital data, an error-control procedure that is used to determine whether a block of data is structured according to given rules.
Industry:Telecommunications
In the propagation of an electromagnetic wave in a uniform waveguide, such as an optical fiber or metal waveguide, the parameter that indicates the phase change per unit distance of the wave at any point along the waveguide.
Industry:Telecommunications
In the public regulated telecommunications services, a service grade that is described in part 68, Title 47 of the Code of Federal Regulations. Note: Voice-grade service does not imply any specific signaling or supervisory scheme.
Industry:Telecommunications
In the public switched telephone networks, the equipment provided by a common carrier to accomplish electrical interconnection between customer-provided equipment and the facilities of the common carrier.
Industry:Telecommunications
In the quantization process, the discrete value assigned to a particular subrange of the analog signal being quantized.
Industry:Telecommunications
In the radio regime, a lens made of dielectric material that refracts radio waves in the same manner that an optical lens refracts light waves.
Industry:Telecommunications
In the receipt and processing of digitized television transmissions, a method of covering up errors from dropouts by using the redundancy in most adjacent-frame image information. Note: Video images are frequently nearly identical from frame to frame. Adjacent video lines frequently have almost the same detail. It becomes possible, therefore, when a "burst error" involving the modification or loss of many recorded bits occurs, to determine (from adjacent image segments) a most probable substitution. Such substitutions, when infrequent and supported by the image redundancy, are often accepted by the viewers as "correct. " (This is a degree of freedom in image data recovery that is obviously not utilized when recording scientific and financial data. ) The additional information needed by the algorithm for decision and substitution is usually provided by a data-storage cache established during reproduction.
Industry:Telecommunications
In the received image in video systems, distortion characterized by the appearance of an underlying block encoding structure.
Industry:Telecommunications
