Virtual channel number - This is the channel the consumer thinks he is watching. The actual (physical) channel is selected by a hidden mechanism.
Dolby® Pro Logic® (DPL) - A processing mode for A/V components and the current standard for handling surround sound soundtracks in a home theatre system. Signal steering and delay are crucial for DPL performance.
Rear Channel Preamp Output - This feature allows you to connect the sound from the rear channel to a separate power amplifier, for more amplification or further processing.
Set-top box (STB) - A box, similar to the familiar cable box, that is capable of receiving, decoding and sending to the associated television the picture and sound of the selected DTV broadcast. The use of an STB would allow the use of conventional televisions to receive DTB programs, but at reduced levels of resolution and with imperfections due to aspect ratio differences, leading to letterboxing or cropping of the sides of the picture.
Cropping factor - Many digital SLRs use an image sensor that is smaller than 35mm film. If you attach a lens to one of these cameras, its 35mm equivalency will be multiplied by the cropping factor-a manufacturer's specification. For example, if your digital SLR has a cropping factor of 1.6x, then a 50mm lens mounted on your camera will have a 35mm equivalency of 80mm. That is, the 50mm lens will yield the same field of view as an 80mm lens on a 35mm camera.
SmartFilm - Fuji's brand name for their APS products.
Line Doublers - This device converts NTSC or 480i into 480p. Line doublers with motion-adaptive processing can to an extent turn a 30 frames/sec image into a 60 frames/sec image, thus removing some of the jerkiness and blurriness associated with motion.
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