Digital TV: Difference between revisions

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Digital TV or '''D'''igital '''V'''ideo '''B'''roadcasting, is a set of standards for the transmission of digital video and audio.
Digital TV or '''D'''igital '''V'''ideo '''B'''roadcasting, is a set of standards for the transmission of digital video and audio.


DVB consists of a data packets, which carries MPEG2 coded video/audio and EPG combined with other pay load. The data for each channel is identified by PIDs. Depending on the transmission path there a four different kinds of DVB, which have different modulations, frequencies, bandwiths and resolutions.
DVB consists of a data packets, which carries a MPEG2 coded video/audio and EPG combined with other payload encapsulated in [[MPEG2 Transport Streams]]. Depending on the transmission path there a different kinds of Digital TV, which are using different [[Modulation Scheme]]s, frequencies, transmission parameters and are optimized for different transmission networks and target devices.


[[DVB-S]] (Digital Video Broadcasting over Satellite)
DVB-S (satellite)


[[DVB-C]] (Digital Video Broadcasting over Cable Networks)
DVB-C (digital cable TV)


DVB-T (terrestrian digital TV)
[[DVB-T]] (Terrestrial Digital Video Broadcasting)


DVB-H (a new standard for mobile equipment, e.g. mobile phones)
[[DVB-H]] (a new standard for mobile devices, e.g. mobile phones. Sometimes called DVB-N like Nokia ;) - )

[[ATSC]] (The U.S. version of digital TV)


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''Links:''

* [[DVB Standard]]s

* [http://www.dvb.org/ The DVB Consortium]

* [http://www.atsc.org/ The Advanced Television Systems Committee, specifies the ATSC standard]

Revision as of 20:24, 23 September 2004

Digital TV or Digital Video Broadcasting, is a set of standards for the transmission of digital video and audio.

DVB consists of a data packets, which carries a MPEG2 coded video/audio and EPG combined with other payload encapsulated in MPEG2 Transport Streams. Depending on the transmission path there a different kinds of Digital TV, which are using different Modulation Schemes, frequencies, transmission parameters and are optimized for different transmission networks and target devices.

DVB-S (Digital Video Broadcasting over Satellite)

DVB-C (Digital Video Broadcasting over Cable Networks)

DVB-T (Terrestrial Digital Video Broadcasting)

DVB-H (a new standard for mobile devices, e.g. mobile phones. Sometimes called DVB-N like Nokia ;) - )

ATSC (The U.S. version of digital TV)



Links: