Weak current College】 【what EVD? EVD and differences in the HDTV?】.

<br> EVD systems are the upgrade products DVD, EVD (EnhancedVersatileDisk) and known as "strengthening high density digital compact disc system", published by the EVD technology patents, mainly audio / video filtering transforms, encoding / decoding of optimization methods, role .is to improve the sound quality, screen and increase data compression ratio. In addition there are inherited from the SVCD's "digital video overlay subtitles on dynamic" method, you can have a title display in 256 colors. Including 5 software, namely "DVD- .EVD conversion software "and" AC3-EAC conversion software "and" OGT production system "and" digital video disc EVD production system "and" VCD / DVD / EVD players. "" EVD "are Chinese owns independent intellectual property rights in the digital .CD system, a Chinese national standards in the field of digital optical discs. EVD-system technical specifications have been submitted to the international electrical and international organization for Standardization, is expected to become the international standard. Provides users with a more clearly shows, the .EVD systems in the original DVD technology to stream speed increase of nearly 100%, the image resolution reached 5 times faster than DVD, more shocking sound, more beautiful and more flexible choice. Its technical features are: <br> <br> In the .video, the system not only enables standard definition, also implements custom VCD quality to high definition 8 different kind of video quality, comprehensive support, including high-definition digital TV, use the demand and use environment, can directly as high-definition digital television .production testing equipment and home entertainment devices. <br> <br> In audio, system with independent intellectual property rights of EAC audio compression technology, not only provides full support for Mono, dual mono and 5.1 channel, also in the audio quality is better .than the present DVD machines are usually used at high license fees of DolbyAC-3. <br> <br> In the title, the system of succession and development of the Super VCD of research results for 256 colors can be floating titles, as well .as support for transparent color, the subtitle display quality and flexibility is far better than the DVD subtitles. <br> <br> But, more importantly EVD has obtained 22 patents, developed the 5 sets of software, and third-party testing, and .Super VCD and DVD systems compared to technical advantages, filling the domestic high definition programmes CD storage play gaps in the domestic belonging to creative results. Among them, the use of proprietary audio compression algorithm (EAC) in the same bit rate to generate better than .Dolby AC-3 quality audio, to achieve the international level in the field of audio compression. <br> <br> 1, EVD? <br> <br> EVD is in strong support of the Ministry of information industry, to resist DVD .technology to Chinese enterprises, independent research and development by China Enterprise DVD upgrade technology successful. EVD-definition technology in early 2002 adopted the national-level technical appraisal, is a new branch, on radio and television, Amoi, drive manufacturers successfully applied in the .production of the HD DVD player for household use, EVD drive in January 2004, and the month of September 2004 by detecting guojiaxinchanbu-definition. On radio and television are Sohu EVD388 "2004 most popular household electrical appliances", new branch was named people's net .EVD8830 "2004 top ten most innovative product". [NextPage] <br> <br> EVD is currently has more than 20 national patents and 10 international invention patent, its technology at the international level. <br> <br> 2 better than .DVD, EVD? <br> <br> The clarity of the DVD is 720 × 576 (PAL) or 720 × 480 (NTSC), every picture of effective pixel count of 35 million; EVD drive playback output signal is 1080i and 720 p .high-definition format, the effective pixel is 207 million, is 5 times faster than DVD. <br> <br> <br> EVD screen color saturation and the brightness is much higher than that of DVD, the color reproduction capabilities than DVDs several .times, the screen is very delicate and lifelike. <br> <br> For example, picture 5 was very close to the black point if EVD, is clearly visible, and if you use a DVD, is a large black spots. <br .> <br> EVD ExAC audio compression uses technology that can simultaneously achieve high definition and surround sound, in the Ministry's assessment, the EVD acoustics is 4.7 (full score 5 points), Dolby 0.2 points. Therefore, the EVD hearing brought about by the .absolute temperature level of enjoyment. <br> <br> 3, EVD play DVD disc? <br> <br> You can not only be sowing, EVD DVD disc, you can play super VCD, VCD, CD, MP3, and format .of the program, the people's House of discs will not be wasted. <br> <br> While playing a DVD and VCD EVD, to improve the output quality of 30 percent. <br> <br> 4. When will replace the EVD .DVD? <br> <br> High-definition TV has been widely accepted by the consumer, by the end of this year it is expected that sales will reach 10 million units, while the EVD is consumers to enjoy high-definition audio and video .effects of important program input source, must be quick, before the Beijing Olympic Games, at least in large and medium cities, EVD will replace the DVD. <br> <br> 5, EVD of independent intellectual property rights have any significance? < .br> <br> Since DVD technology largely in foreign enterprises, especially in the hands of Japan enterprises, China as a DVD drive, the largest producer, patent fees each year only one item will be sent to the foreign enterprise 12 billion dollars. EVD .owns China's independent intellectual property rights means that, on the one hand, Chinese enterprises can no longer affected by the restriction of DVD technology, significant cost savings; on the other hand, foreign enterprises are to production, must be submitted to the Chinese people, .increase your patent fees-In. This is the national advocate for the intellectual property strategy a success story in the economy powerful strong people. <br> <br> <br> Why focus on 6, EVD anti-piracy measures? <br> .<br> Piracy surface looks you can let us buy very cheap dish, but it ultimately damage or our own long-term interests. EVD to anti-piracy work best, is to get take profit of pirates to the consumer. Indeed, because of .the ability of the EVD anti-piracy strong, movies are willing to lower the price of a dish, through price-genuine advantage to get the proper size, and consumers at the same time you can enjoy the genuine DVD low price. <br> .<br> Anti-piracy is promoted as an important national image, EVD to consumers a respected genuine opportunity, let us work together to support legitimate, support the legitimate interests of the copyright owner. <br> <br> 7. in addition to .the EVD, market, whether there are other HD DVD player? <br> <br> At present, Europe and Japan national HDTV standards are defined as 1920 × 1080i or 1280 × 720p, EVD is the world's first fully compatible with high definition standard .drive, and is the only one we can buy in the store, get recognized by the Ministry of information industry testing high-definition DVD player. <br> <br> 8, EVD drive price will not be too expensive? <br> < .br> No, the EVD drive had already gone into mass production, its price and brand of DVD. <br> <br> EVD price is slightly more expensive than regular DVD, because of the high definition content EVD to compress and decompress it to .operation of the digital capacity of up to five times higher than the DVD, so use the computing capacity strong household appliances chip - equivalent to computer chips in the Pentium IV. <br> <br> 11, EVD why bring cinema revolution? <br .> <br> EVD technology has been applied to the digital movie player, effects, and advanced cinema projectors (35 projector) exactly the same, but the price is only 1% of traditional film projector, each family's sitting room can be turned into a .movie theater, the EVD brought movie revolution. <br> <br> HDTV is the short name, HignDefinitionTelevision translated into Chinese is "HDTV" mean, HDTV technology source to DTV (DigitalTelevision) "digital TV" technology, HDTV and DTV technology is .a digital signal, and HDTV technology belongs to the highest standards of DTV, has the best video and audio effects. HDTV and current use of analog signal transmission system of traditional TV, HDTV with digital signal transmission. As HDTV from TV program acquisition, making .the TV transmission, as well as to the user terminal to receive all digital, HDTV has brought a very high-definition, resolution up to 1920 × 1080, frame rate, it is sufficient to let 60fps current DVD ashamed of. In addition, the .HDTV screen aspect ratio from the original 4: 3 into a 16: 9, using a large-screen display you have visit the cinema feeling. At the same time, due to the use of digital technology, the ability of signal noise significantly strengthened, .sound system, HDTV support Dolby 5.1 channel routing, bring people enjoy Hi-Fi level of hearing. And compared with analogue television, digital TV with high definition video, high-fidelity stereo sound, TV signals can be stored, and the computer to complete .multimedia system, frequency resources fully, and many other advantages, many of the benefits will certainly promote HDTV into a home theater. <br> <br> <br> The biggest feature of HDTV is high-definition, but most of the rear- .projection, LCD, plasma and other display devices are not necessarily able to achieve the resolution of the signal source, that is to say, the display device is unable to take advantage of the signal source. Surveys show that can perfectly HDTV display device is a .projector, the player most want playback device is the projector. Projector's greatest advantage is that the big screen, you can easily reach more than 100 inches, the Visual impact is very strong. At present most video projector only supports 1080i resolution 720p and formatting, .and few can support 1080p resolution format. But even the 720 p projector screen, its clarity is better than a lot of DVDs, DVD-only format 480i or 480p output. <br> <br> As a traditional display devices in the maximum size .of the TV set is also about 50 inches, the display of high ratio is 4: 3, the default, and snow, Flash also often appear, it is not for people on the big screen display needs. Although the later emergence of support 16 .: 9 and 4: 3 two models of large-screen TV, such as plasma TVs, rear projection TV, LCD TV, and so on, but they are also difficult to break the 100-inch limit, relative to the projector's 100 ~ 300 .inches had to sweat. And traditional TV but also huge, too heavy, not easily move, heat quantity big, the mirror is easily identified, specular reflection interference watch, and the price is quite expensive, and so on. <br> <br .> Compared with projection as a new generation of display devices in the field of education and business in China has been a lot of universal application, and in the home market shows great potential for development. Its advantage: high definition, the projector has been able .to output 1080i, 720p or higher signal format and can be down-compatible different signal; large screen display, projector can easily achieve the 100-inch large screen display above; and there is a no TV have incomparable advantages is that you can adjust the .size of the projection screen, and you can use any of the move. Therefore, the marriage of HDTV and the projector is overwhelming..