Digital Tv One Machine Towards Integration And Information Technology
For the digital TV One machine, the way to machine card separation have to make choices. Machine Card Separation is also Europe and the United States and other areas of digital television development approach adopted earlier. The difference is that the relevant departments in China need one machine as soon as possible on the digital TV gives a clear product requirements and technical specifications.
As used by operators around the conditional access (CA), Electronic Program Guide (EPG), Downloader (Loader) and value-added services middleware (MiddleWare) and other systems are different, digital TV set-top boxes around the operator must small-scale customization, so that digital TV can not quickly enter the market one machine.
Operators around the system, the development of different constraints
China since 2003 to promote digital television since the related products, services and users has made great progress. To varying degrees around the television to achieve the digital, but around the use of network architecture, and digital product business model is different.
In accordance with the broadcasting sector planning during the transition period over analog TV programs and broadcast digital television programs meet the demand, simulation programs will be gradually reduced, the digital programming will gradually increase. Among them, the digital television set-top boxes currently used to receive, but also from all over the radio and television set-top box is the operator re-issued purchase or sell the user.
As used by operators around the conditional access, electronic program guide, download devices and value-added business systems such as different middleware, digital television set-top boxes around the radio and television operators must carry out small-scale customization, so difficult to achieve digital TV set-top box mass production is difficult to reduce maintenance costs, which to some extent, restricted the development of digital television market, but also to digital TV One machine can quickly enter the market.
National digital terrestrial television broadcasting standard announced in August 2006 and was enforced in August 2007, digital TV integrated industrial machine began to rules to follow. Up to now, foreign
TV Most manufacturers in China released a digital TV integrated machine products, but marketing these products into the small shopping centers in the vast majority of TV is still only receive analog TV programs.
Fact, the current TV market has gradually formed a high-definition
Flat Panel TV The mainstream of the situation, these flat-panel high-definition TV with a digital image display technology, image quality significantly improved, consumers may think that this is the digital television, this is actually a misunderstanding.
Digital TV integrated machine (Integrateddig-italTV, iDTV) or rather with a digital TV signal reception and decoding of color television. With existing high-definition display television is the difference between the integrated digital audio and video decoder, without the need for an external set-top box to receive digital TV signals. Therefore, strictly speaking, not necessarily high-definition TV shows in digital TV.
Digital TV includes a digital channel receiver, digital audio and video decoding and playback of digital image display functions such as voice-related components. Therefore, the digital television body machine must be able to receive television in the digital signal directly, and can be decoded to watch digital television programs and related program information.
According to China’s relevant standards, the digital channel is to be built-in digital tuner to receive demodulation function, including GB at least terrestrial broadcasting reception module, video and audio decoding at least support the MPEG-2 compression coding standard, HD 1080i image display should support at least or 720P resolution.
Machine Card Separation can alleviate the problem of scale
Digital TV is facing the dilemma is difficult to spread rapidly, mainly due to: in the current set-top box must be “tailored” mode, the formation of regional products, business model, and the traditional TV industry, manufacturing and sales way out of tune.
Therefore, the state government departments to develop a digital TV receiver machine card separation of industrial policy, and the enactment of China’s independent intellectual property machine card separation standards, conditional access and other regional services, and receiver separation, breaking the The current vertical sales model, the ultimate digital TV receiver in the market, the level of sales.
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