Digital Satellite Service (original) (raw)
Digital Satellite System is the initialism expansion of the DSS digital satellite television transmission system used by DirecTV. Only when digital transmission was introduced did direct broadcast satellite (DBS) television become popular in North America, which has led to both DBS and DSS being used interchangeably to refer to all three commonplace digital transmission formats - DSS, DVB-S and 4DTV. Analog DBS services, however, existed prior to DirecTV and were still operational in continental Europe until April 2012.
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| dbo:abstract | Digital Satellite System is the initialism expansion of the DSS digital satellite television transmission system used by DirecTV. Only when digital transmission was introduced did direct broadcast satellite (DBS) television become popular in North America, which has led to both DBS and DSS being used interchangeably to refer to all three commonplace digital transmission formats - DSS, DVB-S and 4DTV. Analog DBS services, however, existed prior to DirecTV and were still operational in continental Europe until April 2012. At the time of DirecTV's launch in 1994, the DVB-S digital satellite system in use in the majority of the world had not yet been standardised, the Thomson developed DSS system was used instead. While functionally similar in DVB-S – MPEG 2 video, MPEG-1 Layer II or AC3 audio, QPSK modulation, and identical error correction (Reed–Solomon coding and Viterbi forward error correction), the transport stream and information tables are entirely different from those of DVB. Also unlike DVB, all DSS receivers are proprietary DirecTV reception units. DirecTV is now using a modified version of DVB-S2, the latest version of the DVB-S protocol, for HDTV services off the SPACEWAY-1, SPACEWAY-2, DirecTV-10 and DirecTV-11 satellites; however, huge numbers of DSS encoded channels still remain. The ACM modulation scheme used by DirecTV prevents regular DVB-S2 demodulators from receiving the signal although the data carried are regular MPEG-4 transport streams. (en) |
| dbo:wikiPageExternalLink | http://www.coolstf.com/mpeg/%23dss |
| dbo:wikiPageID | 4700608 (xsd:integer) |
| dbo:wikiPageLength | 2568 (xsd:nonNegativeInteger) |
| dbo:wikiPageRevisionID | 1106260748 (xsd:integer) |
| dbo:wikiPageWikiLink | dbr:QPSK dbr:SPACEWAY-1 dbr:SPACEWAY-2 dbr:DVB-S dbr:DVB-S2 dbc:Satellite_television dbr:4DTV dbr:North_America dbr:Forward_error_correction dbc:Digital_television dbr:HDTV dbr:DirecTV dbr:Direct_broadcast_satellite dbr:Dolby_AC-3 dbr:Reed–Solomon_error_correction dbr:Satellite_television dbr:DirecTV-10 dbr:DirecTV-11 dbr:Viterbi_decoder dbr:Thomson_SA dbr:MPEG-1_Layer_II dbr:MPEG_2 |
| dcterms:subject | dbc:Satellite_television dbc:Digital_television |
| gold:hypernym | dbr:Expansion |
| rdf:type | dbo:VideoGame |
| rdfs:comment | Digital Satellite System is the initialism expansion of the DSS digital satellite television transmission system used by DirecTV. Only when digital transmission was introduced did direct broadcast satellite (DBS) television become popular in North America, which has led to both DBS and DSS being used interchangeably to refer to all three commonplace digital transmission formats - DSS, DVB-S and 4DTV. Analog DBS services, however, existed prior to DirecTV and were still operational in continental Europe until April 2012. (en) |
| rdfs:label | Digital Satellite Service (en) |
| owl:sameAs | freebase:Digital Satellite Service wikidata:Digital Satellite Service https://global.dbpedia.org/id/4ivkN |
| prov:wasDerivedFrom | wikipedia-en:Digital_Satellite_Service?oldid=1106260748&ns=0 |
| foaf:isPrimaryTopicOf | wikipedia-en:Digital_Satellite_Service |
| is dbo:wikiPageDisambiguates of | dbr:DSS |
| is dbo:wikiPageRedirects of | dbr:Hughes_DSS dbr:Digital_Satellite_System |
| is dbo:wikiPageWikiLink of | dbr:Bell_Satellite_TV dbr:United_States_Satellite_Broadcasting dbr:DSS dbr:Nicktoons_(American_TV_channel) dbr:DirecTV_Cinema dbr:ATSC_standards dbr:DirecTV dbr:Plainview,_Texas dbr:RTÉ dbr:Satellite_television dbr:Television_in_the_United_States dbr:Hughes_DSS dbr:Digital_Satellite_System |
| is foaf:primaryTopic of | wikipedia-en:Digital_Satellite_Service |