- Отрасли: 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 facsimile transmitting equipment, the scanning of an object, such as a message surface or the developed plane in the case of a drum, along parallel lines in a specified pattern. Note 1: The scanning direction is equivalent to scanning over a right-hand helix on a drum. Note 2: The orientation of the message on the scanning plane will depend upon its dimensions. Note 3: In facsimile receiving equipment, scanning from right to left and top to bottom, is called "positive" reception and from left to right and top to bottom, is called "negative" reception. Note 4: Scanning direction conventions are included in ITU-T Recommendations for phototelegraphic equipment.
Industry:Telecommunications
In facsimile transmission, scanning using only one spot at a time.
Industry:Telecommunications
In facsimile transmission systems, any segment of a scanning line, the dimension of which along the line is exactly equal to the nominal line width. Note: An elemental area is not necessarily the same as the scanning spot.
Industry:Telecommunications
In facsimile transmission and reception, the process by which the start of the scanning line or lines is made to correspond to one edge of the object being scanned. Note: If there is no correspondence between the object being scanned and the scanning line or lines, distortion, often in the form of a split image, will occur in the received image.
Industry:Telecommunications
In facsimile systems, the total of the areas that are actually explored by the scanning spot during the scanning of the object by the transmitter or during scanning of the record medium by the receiver.
Industry:Telecommunications
In facsimile systems, the total length of a scanning line, equal to the spot speed divided by the scanning line frequency. Note: The scanning line length is usually greater than the length of the available line.
Industry:Telecommunications
In facsimile systems, the time interval between (a) the instant at which the scanning spot probes or writes to a given spot on one scanning line, and (b) the instant at which the scanning spot probes or writes to the corresponding spot on the next scanning line.
Industry:Telecommunications
In facsimile systems, the speed of the scanning or recording spot along the available line. Note: The spot speed is usually measured on the object or on the recorded copy.
Industry:Telecommunications
In facsimile systems, the signal that maintains predetermined speed relations between the scanning spot and recording spot within each facsimile scanning line.
Industry:Telecommunications
In facsimile systems, the signal resulting from scanning a minimum-density area, i.e., the white area, of the object.
Industry:Telecommunications
