satellite TV glossary & definitions – Part 3
The date on a card is used by the provider to activate or deactivate channels.
A reduction of the higher frequency portions of an FM signal used to neutralize the effects of pre-emphasis. When combined with the correct level of pre-emphasis, it reduces overall noise levels and therefore increases the output S/N ratio
Declination Offset Angle:
The adjustment angle of a polar mount between the polar axis and the plane of a satellite antenna used to aim at the geosynchronous arc. Declination increases from zero with latitude away from the equator.
A circuit that restores a signal to its original form after it has been scrambled.
A sub-system on the BS, managing all decoder/smartcard related information such as function testing, keysafing information, etc…
Decoding Time Stamp – TS:
A 90 kHz referenced time stamp indicating when the contents of a packetized elementary stream (PES) packet should be decoded
A device which extracts the baseband signal from the transmitted carrier wave.
Describes a system or device in which information is transferred by electrical [on-off], [high-low], or [1/0] pulses instead of continuously varying signals or states as in an analogue message.
Direct Broadcast Satellite (DBS):
A term commonly used to describe Ku-band broadcasts via satellite directly to individual end-users. The DBS band ranges from 11.7 to 12.75 GHz.
DC restoration –
Geek box term. Measurement of how well a television is able to maintain a consistent colour of black regardless of the brightness of the rest of the image.
Defeatable edge enhancement –
Geek box term. The ability of a TV to not introduce any extra edge enhancement.
Deinterlacer – See line-doubler/tripler/multiplier.
Digital Cable Ready – Official term for an HDTV that conforms to the plug-and-play digital cable TV standard using POD (point of deployment) access cards, also called CableCARDs. With cable systems that comply to the standard, users can plug the cable directly into an HDTV set, then enjoy HDTV and digital cable without having to use a separate set-top box. Sets with interactive functionality are labeled Interactive Digital Cable Ready.
Digital comb filter – Device that separates the luminance and chrominance parts of a video signal in the digital domain, which provides enhanced color purity and reduced dot crawl over the analog variety. See comb filter
Direct view – Any television not based on projection technology. Most often refers to standard CRT televisions, as opposed to rear- or front-projection TVs.
Divx – Digital Video Express. Defunct pay-per-view DVD feature that played back both standard and lower-cost DVDs; Divx-enhanced DVD players had to be connected to a phone line to track additional viewings of discs but was discontinued by its primary promoter, Circuit City, in June 1999. Divx is not to be confused with DivX video format.
DivX – MPEG-4-based compressed digital video format (or codec) used for Internet distribution of movies; often called the MP3 of video. DivX Networks is the name of the company that sells DivX content and is not to be confused with Circuit City’s defunct Divx DVD format.
DLP – Digital light processing. A microdisplay technology invented by Texas Instruments, DLP is based on a digital micromirror device (DMD), a chip with millions of hinged, microscopic mirrors attached, each of which corresponds to a single pixel in the projected image. Red, green, and blue light filtered through a color wheel is directed alternately onto the DMD, which switches on and off up to 5,000 times a second. The reflected light is directed through a lens and onto a screen, creating an image. High-end HDTV projectors use a three-chip solution, with separate DMDs for green, red, and blue, and forego the color wheel.
Dolby Digital – Six-channel digital audio standard that is part of the U.S. digital television standard; also called AC-3 or Digital 5.1. The channels consist of front left, front right, front center, surround or rear left, surround or rear right, and a separate subwoofer (the .1).
Downconvert – In DTV, the conversion from a higher-resolution input signal number to a lower one. For example, some DTV receivers can be set to downconvert an HDTV 1080i signal to a standard 480i signal that any TV can display.
– Digital Rights Management. General term that describes a variety of technical and/or legislative efforts for securing and protecting different forms of digital content for the benefit of copyright holders.
– Digital Transmission Copy Protection. HDTV copy-protection scheme more commonly called 5C.
– Digital Transmission Licensing Administrator. The licensing organization for the 5C DTCP HDTV copy-protection technology.
– Digital television. A generic term that refers to all digital television formats, including high-definition television (HDTV) and standard-definition television (SDTV).
– Digital-VHS. Version of VHS (Video Home System) videocassette standard capable of recording HDTV via a FireWire connection; D-VHS decks are made by JVC and Mitsubishi.
– Digital visual interface. Omnidirectional digital connectivity standard that conveys an uncompressed digital signal from a digital source, such as an ATSC tuner, to a display. HDCP copy protection is often used in conjunction with the DVI connection. DVI connections do not carry audio.
Digital video recorder. A television recorder such as Replay and TiVo that uses a hard drive, an EPG, and internal processing to drastically simplify programmed recording and playback of recorded programs. A DVR vastly increases recording time compared to VCRs or DVD-recording decks; often enables smart programming, in which the device records an entire series or programming defined by keywords, genre, or personnel; and offers pause control over “live” broadcasts. Also called personal video recorder (PVR) or hard disk video recorder.
Direct programming lines:
If the EEPROM on a card is directly connected to the cards contacts, then the EEPROM can be programmed independently from the processor. When this is the case, those direct connections are called the direct programming lines. You will find DPL on SMD or HMD cards only. Goldwater’s don’t utilize DPL and will therefore always need a loader file in the processor chip in order to program the EEPROM on the card.
A circuit that lowers the high-frequency signal to a lower, intermediate range. There are three distinct types of downconversion used in satellite receivers: single downconversion; dual downconversion; and block downconversion.
The antenna onboard a satellite which relays signals back to earth.
DPSC is short for Digital Pirate SatelliteCard. These cards are sold with working keys. Prices can be up to several hundreds of Euros for multi-provider cards. Usually, these cards contain a sort of timing routine which ensures that the cards are disabled after a certain period of use. But these cards will also be closed by provider attacks through the use of ECM’s.
An instability in a preset voltage, frequency or other electronic circuit parameters.
Direct-To-Home satellite broadcasts.
A feed which can simultaneously receive two different bands, typically the C and Ku-bands.
DVB is short for Digital Video Broadcasting, or digital satellite TV.
The DVB SI tables include a Bouquet Association Table (the BAT). The DVB definition for a “bouquet” is “a group of services logically grouped together”. The intention of the DVB Bouquet is usually to group services that are managed by one entity together. “DVB” is added before the name to distinguish it from the “SMS” bouquet.