Ох, матка-боска, приходится приводить большой фрагмент текста. Перевод выделенных слов не ясен. Буду признателен.
(чтоб оно все провалилось...)
"19.3 INTERLACING
The range of modulating frequencies required in these systems would in fact be higher still, but for the use of a technique known as interlacing. When the number of individual pictures per second composing the display is too low, an unpleasant flickering is apparent. Although about 25 pictures per second are used in photographic motion pictures, it is usually arranged for the light to be interrupted by a shutter once (or sometimes twice) during the projection of each picture as well as between successive pictures, so that the light flickers at about 50 (or sometimes about 75) times per second, and this is not very noticeable (see Section 12.12). In television, however, interruption of the electron beam during the scanning of a picture would result only in the disappearance of the part of the picture being scanned at the time; and interruption of the light emitted by the fluorescent screen of the tube would produce variations in luminance over the area of the picture because the interruption would occur at different points in the time cycle of the afterglow of the phosphor at different parts of the picture. But 25 to 30 pictures per second is too low a frequency for flicker to be avoided and hence
some means of increasing the frequency is required. To transmit twice the number of pictures per second would require twice as much bandwidth, but, by using interlacing, the apparent flicker frequency is doubled without any increase in bandwidth being necessary. In an interlaced picture the electron beam first produces all the odd lines of the picture, the first, the third, the fifth etc., and then adds the even lines in between them. The parts of the picture composed by all the even or all the odd lines are called fields.<...>"
Предварительные варианты:
INTERLACING -- Чересстрочная развертка? Или, может, ну его на хрен -- просто "интерлэйсинг"?
bandwidth -- полоса пропускания?
interruption -- прерыание?
fields -- кадровые поля?
Спасибо.
(чтоб оно все провалилось...)
"19.3 INTERLACING
The range of modulating frequencies required in these systems would in fact be higher still, but for the use of a technique known as interlacing. When the number of individual pictures per second composing the display is too low, an unpleasant flickering is apparent. Although about 25 pictures per second are used in photographic motion pictures, it is usually arranged for the light to be interrupted by a shutter once (or sometimes twice) during the projection of each picture as well as between successive pictures, so that the light flickers at about 50 (or sometimes about 75) times per second, and this is not very noticeable (see Section 12.12). In television, however, interruption of the electron beam during the scanning of a picture would result only in the disappearance of the part of the picture being scanned at the time; and interruption of the light emitted by the fluorescent screen of the tube would produce variations in luminance over the area of the picture because the interruption would occur at different points in the time cycle of the afterglow of the phosphor at different parts of the picture. But 25 to 30 pictures per second is too low a frequency for flicker to be avoided and hence
some means of increasing the frequency is required. To transmit twice the number of pictures per second would require twice as much bandwidth, but, by using interlacing, the apparent flicker frequency is doubled without any increase in bandwidth being necessary. In an interlaced picture the electron beam first produces all the odd lines of the picture, the first, the third, the fifth etc., and then adds the even lines in between them. The parts of the picture composed by all the even or all the odd lines are called fields.<...>"
Предварительные варианты:
INTERLACING -- Чересстрочная развертка? Или, может, ну его на хрен -- просто "интерлэйсинг"?
bandwidth -- полоса пропускания?
interruption -- прерыание?
fields -- кадровые поля?
Спасибо.
