What is DVB – Digital Video Broadcasting?

Saturday, January 7th, 2012

Here DVB stands for Digital Video Broadcasting, it is a suite of internationally accepted open standards for digital television. DVB standards are maintained by the DVB Project, an international industry consortium with more than 270 members, and they are published by a Joint Technical Committee (JTC) of European Telecommunications Standards Institute (ETSI), European Committee for Electrotechnical Standardization (CENELEC) and European Broadcasting Union (EBU). The interaction of the DVB sub-standards is described in the DVB Cookbook. Many aspects of DVB are patented, including elements of the MPEG video coding and audio coding. (More about DVB on WiKi-Digital Video Broadcasting)

Data are distributed by DVB systems through a variety of approaches, they are:

  • * satellite: DVB-S, DVB-S2 and DVB-SH – DVB-SMATV for distribution via SMATV
  • * cable: DVB-C, DVB-C2
  • * terrestrial television: DVB-T, DVB-T2 – digital terrestrial television for handhelds: DVB-H, DVB-SH
  • * microwave: using DTT (DVB-MT), the MMDS (DVB-MC), and/or MVDS standards (DVB-MS)

And among the four approaches, satellite is the most important one that allows us to watch TV on our computer everywhere we go. To do this, one just need to have a Digital TV player softwarein his computer and a hardware receiver.

 

 

Share

What is DTMB?

Saturday, January 7th, 2012

DTMB(Digital Terrestrial Multimedia Broadcast) is also called DMB-TH or DMB-T/H(Digital Multimedia Broadcast-Terrestrial/Handheld), it is a Chinese digital terrestrial television standard, GB20600-2006, for transmitting SD and HD television. The platform is based on an Altera Stratix II FPGA. The Stratix II FPGA provides the heart of the baseband digital signal processing (DSP) for channel coding, modulation and filtering that are required to meet the GB20600-2006 standard.

 

Features

*SDTV and HDTV

*Mobile and stationary transmission

*LDPC FEC coding

*Supports payload data rates of 4.813 Mbps to 32.486 Mbps

*MFN and SFN

*Framing structure

*Channel coding

*Digital QAM modulation

*PN sequence frame header for fast synchronization and highly efficient channel

estimation / equalization

DTMB supported digital TV player software: BlazeVideo HDTV Player

Share

What is ISDVB-T?

Saturday, January 7th, 2012

Integrated Services Digital Broadcasting (ISDB) is a Japanese standard for digital television (DTV) and digital radio used by the country’s radio and television stations. ISDB replaced the previously used MUSE “Hi-vision” analogue HDTV system.

 

The core standards of ISDB are ISDB-S (satellite television), ISDB-T(terrestrial), ISDB-C (cable) and 2.6GHz band mobile broadcasting which are all based on MPEG-2 video and audio coding as well as the transport stream described by the MPEG-2 standard, and are capable of high definition television (HDTV). ISDB-T and ISDB-Tsb are for mobile reception in TV bands. 1seg is the name of an ISDB-T service for reception on cell phones, laptop computers and vehicles.

 

ISDB-T operates on unused TV channels, an approach taken by other countries for TV but never before for radio.

 

ISDB-T supported software: Blaze DTV Player.

 

 

 

Share

What is DVB standards?

Saturday, January 7th, 2012

DVB is an acronym for “Digital Video Broadcasting“. DVB was set up by the EBU (European Broadcast Union) to set the standards for digital video transmission. They have published these via ETSI (European Telecommunications Standards Institute) who also set standards for devices such as GSM telephones. In fact there are several DVB standards for different transmission media.Some of these are:

  • DVB-C Cable
  •  

  • DVB-T Terrestrial
  •  

  • DVB-S Satellite
  •  

  • DVB-CI Common Interface for conditional access
  •  

  • DVB-CI Common Interface for conditional access

Software free download: DTV Player

 

Share

What is CMMB?

Saturday, January 7th, 2012

CMMB (China Multimedia Mobile Broadcasting) is a mobile television and multimedia standard developed and specified in China by SARFT. It is based on the Satellite and Terrestrial Interactive Multiservice Infrastructure (STiMi), developed by TiMiTech, a company formed by the Chinese Academy of Broadcasting Science. It is to some extent similar to Europe’s DVB-SH standard for digital video broadcast from both satellites and terrestrial repeaters to handheld devices.

It specifies usage of the 2.6 GHz frequency band and occupies 25 MHz bandwidth within which it provides 25 video and 30 radio channels with some additional data channels. Multiple companies have chips that support CMMB standard – Innofidei who was the first with a solution March 28, 2007, Siano Mobile Silicon(with the SMS118x chip family, which support diversity and have superb performance).

At the same time, it is also supported by many software, among the most popularly used ones are BlazeVideo HDTV Player.

Share

What is ATSC?

Saturday, January 7th, 2012

ATSC stand for Advanced Television Systems Committee, ATSC, Inc. is an international, non-profit organization developing voluntary standards for digital television. Specifically, ATSC is working to coordinate television standards among different communications media focusing on digital television, interactive systems, and broadband multimedia communications. ATSC Digital TV Standards include digital high definition television (HDTV), standard definition television (SDTV), data broadcasting, multichannel surround-sound audio, and satellite direct-to-home broadcasting.

Product from BlazeVideo: DTV Player – BlazeVideo HDTV Player

Share