PSIP data - (Program and System Information Protocol) - This data is arranged as a table with multiple sub-tables. The data identifies the station name, what the sub-channels are, the program name, the following programs, content advisories, language options, and caption options. Some of this data is transmitted as often as 7 times per second.
DTCP - (Digital Transmission Content Protection) - This is an encryption standard for IEEE 1394 that prevents the copying of first-run movies and pay-per-view events. DTCP is also called 5C Copy protection (in reference to the `five companies' that license it).
SDTV - "Standard Definition Television." SDTV are based on 480 lines of vertical resolution and may have either 4 - 3 or 16 - 9 aspect ratios, and surround sound. Several SDTV programs are sent together to form the simulcast bundle. While SDTV pictures are of significantly better quality than NTSC, they are not up to the standard of HDTV.
YCrCb - Almost identical to YPrPb. If you connect a YCrCb unit to a YPrPb unit you might have to adjust the color slightly. YCrCb is an older standard uncommon for consumer connections.
SECAM - (Sequential Color And Memory standard) - This alternative to NTSC has 625 lines interlaced, 50 fields per second. It is used in the former USSR, France, and parts of Eastern Europe, the Middle East, and Africa.
Transponder - A satellite channel. There is often one program per transponder. Some transponders are wider than 6 MHz and can carry more than one NTSC program. Several digital channels can fit on one transponder.
DLP (Digital Light Processing) - A technique in which the displayed image is produced by an array of dynamic micro-mirrors formed on a chip, each reflecting some of the light source to form a pixel on the screen. Each micro-mirror controls the level of the light sent to the screen for its pixel. Resolution is set by the size of the mirror array and versions suitable for wide-screen HDTV are now in production for uses in both front and rear projection televisions.
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