- 行业: 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.
1. An error in transmission, reception, encryption, or decryption that changes the text of a message or any portion thereof in such a manner that it is incorrect or undecryptable. 2. In a telephone circuit or channel, readily audible but unintelligible interference from another circuit or channel. Note: Garble may, for example, take place in an FDM telephone carrier system in which an interfering signal from another channel or system is demodulated in such a fashion that it has an objectionable audio power level but is nonetheless unintelligible.
Industry:Telecommunications
1. An entity of hardware, software, or both, capable of accomplishing a specified purpose. 2. A functionally distinct part of a basic component.
Industry:Telecommunications
1. An end instrument that converts user information into signals for transmission or reconverts the received signals into user information. 2. The functional unit of a data station that serves as a data source or a data sink and provides for the data communication control function to be performed in accordance with link protocol. Note 1: The data terminal equipment (DTE) may be a single piece of equipment or an interconnected subsystem of multiple pieces of equipment that perform all the required functions necessary to permit users to communicate. Note 2: A user interacts with the DTE, or the DTE may be the user. The DTE interacts with the data circuit-terminating equipment (DCE. )
Industry:Telecommunications
1. An electronic component that boosts the voltage or power level of a signal that is a linear replica of the input signal, but with greater power or voltage level, and sometimes with an impedance transformation. The output may also be a nonlinear analog function of the input signal, as in a signal compression device. 2. See fiber amplifier, optical repeater.
Industry:Telecommunications
1. An electrical signal containing timing (synchronization,) luminance (intensity,) and often chrominance (color) information that, when displayed on an appropriate device, gives a visual image or representation of the original image sequences. Note: Correlated audio is included and usually implied. 2. Pertaining to the sections of a television system that carry television signals, either in unmodulated or modulated form. 3. Pertaining to the demodulated radar signal that is applied to a radar display device. 4. Pertaining to the bandwidth or data rate necessary for the transmission of real-time television pictures. Note: In practice, the baseband bandwidth required for the transmission of NTSC television pictures (not including the audio carriers) is approximately 5 MHz.
Industry:Telecommunications
1. An authority (a person or group of people) responsible for implementing the security policy for a security domain. 2. An authority (a person or a group of people) responsible for implementing the security policy for a security domain.
Industry:Telecommunications
1. An assembly, or part thereof, that is essential to the operation of some larger assembly and is an immediate subdivision of the assembly to which it belongs. Note: For example, a radio receiver may be a component of a complete radio set consisting of a combined transmitter-receiver, i.e., a transceiver. The same radio receiver could also be a subsystem of the combined transmitter-receiver, in which case the IF amplifier section would be a component of the receiver but not of the radio set. Similarly, within the IF amplifier section, items, such as resistors, capacitors, vacuum tubes, and transistors, are components of that section. 2. In logistics, a part, or combination of parts having a specified function, that can only be installed or replaced as an entity. . 3. In material, an assembly or any combination of parts, subassemblies, and assemblies mounted together in manufacture, assembly, maintenance, or rebuild. 4. A self-contained part of a system that implements a set of functions. 5. An identifiable and self-contained portion of a Target of Evaluation.
Industry:Telecommunications
1. An assembly of signaling information pertaining to a call that includes, but is not limited to, management transactions, that is transferred (between signaling points) as an entity. 2. An assembly of signaling information that pertains to a call management transaction, and the like and that is transferred as an entity.
Industry:Telecommunications
1. An assembly consisting of an encoder and a decoder in one piece of equipment. 2. A circuit that converts analog signals to digital code and vice versa. 3. An electronic device that converts analog signals, such as video and voice signals, into digital form and compresses them to conserve bandwidth on a transmission path. Note: Codecs in this sense are used in this sense for video conferencing systems.
Industry:Telecommunications
1. An area of responsibility for the security of a system as defined in a System Security policy. Note: The terms Global Security Environment (GSE,) Local Security Environment (LSE) and Electronic Security Environment (ESE) are used to categorize security domains. 2. A bounded group of security objects and security subjects to which applies a single security policy executed by a single security administrator. 3. A set of entities that is subject to a given security policy and a single security administration. 4. A set of elements, a security policy, a security authority and a set of security relevant activities in which the set of elements are subject to the security policy, administered by the security authority, for the specified activities. 5. A complete set of objects, subjects and policies which determine the local definition of "security".
Industry:Telecommunications
