Americans are still stumbling today to upgrade their
ailing televisions to HD standards. Many do not realize that their friendly
broadcast over the waves is about to change. As America pushes the Hi-Def
deadline back, the Japanese are pushing forward with plans to drop their
"Hi-Vision" standard pioneered by NHK, who is a Japanese broadcaster . The Hi-Vision technology was also used on the JAXA moon mission. The communications ministry is pouring 300
million yen into the NHK project to develop and launch a higher quality 33.2 million pixel broadcast
standard by 2015. Due to the ailing USD, that is 2.735 million dollars.
The broadcast standard will be able to travel along 260
kilometers of fiber optic cable and carry 16 different wavelength signals. The
total bandwidth they have achieved in tests is 24 gigabit. Back in 2003 and
2005 NHK demonstrated the “Super-Hi-Vision ” technology.
Back then, there were 16 HDTV recorders hacked together recording 18 minutes of
footage. They took the resultant 3840 × 2048 image and "upscaled" it
through pixel shifting to 7680 × 4320 pixels or 4000 scan lines. Three years
later, the project is still advancing and has overcome many of the
hurdles they once had.
NHK has also developed a codec to compress the 24Gbps video
signal down to 180-600Mbps. The audio is dropped from 28 Mbps to 7-28Mbps. Go
ahead and read that again, video data rate of 24Gbps and a 24 channel audio data rate of 28Mbps. 18 minutes
of video will take up about 3.5 TB of data in a raw format. The image would be more palpable and vibrant than anything we can imagine. Yahoo news has the AFP article.
I actually saw this demonstrated at the 2005 (2006?) NAB convention. Absolutely the best looking shinny marbles, cats playing with balls of string and Geisha girls I
The Japanese are one of the few countries willing to invest in technologies you won't find on a wal-mart shelf. I say that because too often we see the most casual junk being passed off as cutting edge in the retail world, when this is simply a lower end version of a technology already implemented just never made cheap enough to be widely known. Tokyo,Japan has over-the-air public mobile TV you can watch anytime anywhere on your in-car navigation system, cell phone, or at home free and broadcast in 480p resolution. Its normal there. When we were charging $45 for 50CDR/W's back in the day, Japan was already done with CDR and you could buy them in 50's and 10's at gas stations and public rest stations for a few dollers/50 disks. Japan is the home for not daydreaming but technological exploration without filtering it through tons of governmental mandates. The Japanese government doesn't even impose much standards on the R&D of many types of products being researched in the attempt to allow the great minds doing so to put forth their best efforts for the world to see and be humbled by when it all works out. If it doesn't there just isn't a press conference or MSNBC news blurb. The Japanese live large and dream big, and what sets them apart is not that alone, but that they so often succeed in making these daydreams of technology out of reach a reality. Goodluck to the R&D team making this possibly possible. Minna Gambatte na!
Un formidable téléviseur qui permettra d'afficher l'espace media millionpixel.fr de type publicite alternative a fort potentiel, actif et dynamique qui vous permet d'etendre l'ancrage local de votre activite avec son million de pixels
