16-10-2012, 11:40 AM
A Seminar Report On Digital Multimedia Broadcasting
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Meaning
The term Digital Multimedia Broadcasting (DMB) means distribution of multimedia content to an audience via satellite.
Also known as mobile TV
History of broadcasting began with early radio transmissions.
Digital Multimedia Broadcasting is mainly developed for sending multimedia contents
Developed in South Korea
World's first official mobile TV service started in South Korea in May 2005
Modes of DMB:
The Digital Multimedia Broadcasting can operate via two ways these Ares-
S-DMB (Uses Satellite for
transmission for contents)
T-DMB ( uses terrestrial or
terminals for transmission
of contents)
S-DMB (Satellite-DMB)
Takes advantage of the satellite
Began on May 1, 2005
S-DMB allows services in areas-
Where terrestrial coverage is not available
Terrestrial system has suffered environmental damages
Where terrestrial coverage requires capacity complement
The system operates in the IMT-2000 slandered
T-DMB (terrestrial)
Takes advantage of only Terrestrial (Tower)
The DTMB was created in 2004 and finally became an official DTT standard in 2006.
standard for mobile and fixed terminals
Use radio frequency bands band III (VHF) and (UHF)
Uses MPEG-4 Part 10 for the video and MPEG-4 Part 3 BSAC for the audio.
compatible with fixed reception (indoor and outdoor) and mobile digital terrestrial television
Conclusion
The Digital multimedia Broadcasting is Better and one of the latest technology to transfer the digital contents to mobile device’s in from all over world. With the help of digital multimedia broadcasting we can transfer various digital contents such as audio song’s videos images from all over world to any place to any mobile device. With the use of terrestrial Digital Multimedia Broadcasting (T-DMB) we can transfer our contents without subscription cost. So most of the countries use Digital multimedia broadcasting.