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.
FTA - (Free To All MPEG-2 broadcasts) - The two most common digital schemes found on C-band and Ku band are 4DTV and FTA. FTA receivers are available to consumers, but there is effectively no regular HD programming.
DLP - (digital light processor). A technology for video projection, also call DMD (Digital Micro-mirror Device). It is a large chip with about a million tiny mirrors on its surface. The chip can tilt each mirror to vary the amount of light reflected off of it.
Pixel - Pixel is actually two words jammed together _ picture and element. A pixel is a tiny sample of video information, the "little squares" that make up an overall picture.
PAL - (Phase Altering Line standard) - This alternative to NTSC has 625 lines, interlaced, 50 fields per second. It is used in most of Europe, Asia (except USSR), Africa, and Australia, and parts of South America.
4 - 3 - Aspect ratio of traditional NTSC TV screens, with 4 unit width by 3 unit height.
IEEE 1394 - Also called Firewire or iLink. Originally a serial bus for PCs, 1394 may or may not become the interconnection standard for DTV products. It is competing with DVI. IEEE 1394 is a spec for a hardware interconnect plus a software shell. But additional software, such as HAVi, is required for connected units to actually talk to each other. Some day 1394 may dramatically simplify the way DTV products interconnect.
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