- 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.
In telephony, the disassociation or release of a switched circuit between two stations.
Industry:Telecommunications
In telephony, the generation of potential traffic that exceeds the capacity of a communications system or subsystem. 2. In telephony, a count of telephone call attempts made on groups of busy trunks or access lines. 3. In telephony, traffic handled by overflow equipment. 4. In telephony, traffic that exceeds the capacity of the switching equipment and is therefore lost. 5. In telephony, on a particular route, excess traffic that is offered to another route, i.e., an alternate route. 6. In digital computing, synonym for arithmetic overflow. 7. In digital communications, the condition that exists when the incoming data rate exceeds that which can be accommodated by a buffer, resulting in the loss of information.
Industry:Telecommunications
In telephony, the loss of the initial or final parts of a word, words, or syllable, usually caused by the nonideal operation of voice-actuated devices. 2. The limiting of instantaneous signal amplitudes to a predetermined maximum value. 3. In a display device, the removal of those parts of display elements that lie outside of a given boundary.
Industry:Telecommunications
In telephony, the transmission of address information to a switching office by means of pulses, i.e., signals, that originate from the subscriber, i.e., user, equipment. Note: Examples of pulsing methods are dual-tone multifrequency (DTMF) signaling, in which a unique pair of audio frequencies represents each of the respective numerals or other characters on a keypad, and rotary dialing, in which dc pulses are generated by a rotary dial. Synonyms key pulsing (when using a keypad,) dial pulsing (when using a rotary dial. )
Industry:Telecommunications
In teletypewriter (TTY) systems, interference, in a given channel, caused by transmissions from one or more adjacent TTY channels transmitting from the end at which the crossfire, i.e., interference, is measured.
Industry:Telecommunications
In teletypewriter systems, a device used to punch a tape in accordance with arriving signals, permitting reproduction of the signals for retransmission.
Industry:Telecommunications
In television and computer graphics, the electronic adjustment of a color reproduction process to improve the perceived-color conformity of the reproduction to the original.
Industry:Telecommunications
In television and video systems, a global distortion over the entire image, characterized by reduced sharpness of edges and limited spatial detail.
Industry:Telecommunications
In television systems, a test signal consisting of a line bar (125 ns rise time and fall time,) a 2T pulse (250 ns half-amplitude duration,) a 12. 5T (1. 5625 microseconds half-amplitude duration) chrominance pulse, and a five-riser staircase signal modulated by the color subcarrier having a peak-to-peak amplitude of 40 IRE units superimposed upon standard synchronizing and blanking signals. Reference 'A' and 'B' are the measurement points utilized in the measurement of insertion gain and insertion-gain variation.
Industry:Telecommunications
In television technology, the reduction of gain applied to light areas in picture signal (corresponding to the midrange light value in the picture. ) Note: The gain in signal amplitude is small compared to the total peak-to-peak picture signal. Measuring the differential gain yields a quantitative evaluation of this effect. The effect of white compression beyond bandwidth limiting is a reduction in contrast in the highlights of the picture as seen on the monitor.
Industry:Telecommunications
