UHDTV (ultra high definition tv) rollout planned for 2025

[erdega79]

This is a very interesting article about was mentioned here before about uhdtv. It's developed in Japan right now but it's a long way off but the specs seem amazing. 7680×4320 resolution, 22.2 audio, 21gHz frequency band , The band width is 600MHz, 500Mbps ~ 600 Mbps

This is a translated article
NHK: UHDTV official launch:2025

The NHK broadcast technical research institute ~ on 29th convenes " the technique in May 26th, 2005 grinds public 2005 " above, publicized the screen resolution for 7680×4320, is equal (HDTV) 16 times " ultra rose the clear television " to the high clear television the plan schedule. Although up to now already trial produced supports ultra rises the clear television photographic camera, actually demonstrates the image broadcast, but is first time public concrete program plan. But, the program also only is the NHK goal, certainly does not have the determination when to begin broadcasting.

To concrete program which officially begins broadcasting as follows: Before 2008 completes face the family transmission system trial manufacturing and the experiment. Before 2011 determines broadcasts the technology face the family. In 2015 starts to test broadcasting, before 2020 develops the home use monitor and the sound equipment. The plan officially begins broadcasting around 2025. In 2025 exactly meets Japan radioly begins broadcasting the 100th anniversary.

The plan is uses the 21gHz frequency □ > 奈 the man gun 悴 □

The transmission method aspect, proposes uses the 21gHz frequency band (21.4gHz ~ 22.0GHz) satellite broadcast. Because one satellite mays then to cover entire Japan, simultaneously may the use frequency band be enough. The band width is 600MHz, if can the one's own use be allowed to carry on 500Mbps ~ 600 Mbps the transmission. When but, in by 21gHz frequency band transmission signal, the existence rains when the signal weakens compared to usually the serious problem. This time, to estimated can because rain causes the signal □p to fade the serious area carries on the enhancement signal launch modelling. In addition also demonstrated in the conference site the 21gHz frequency □ > south 嗫 the small-mouthed wine vessel 筇 煜 □rf (radio frequency) was partial. (Reporter: New well will)

NHK, UHDTV

Aiming to begin broadcasting 20 years from now, “Super Hi-Vision”
A report by NHK’s research institute in 2005

　On May 26th, the NHK broadcasting technology laboratory presented their “engineering and research release 2005”. Many of the attendants were attracted to the ultra-high-detail images produced by the 4000-scanline ‘Super Hi-Vision’ system.
　This Super Hi-Vision system, after being generally released in last year’s ‘engineering and research release’, has also been exhibited since March in the Aichi international exposition which is currently underway. It has an information density 16 times that an HD image, projecting images 7,680×4,320 resolution onto a 450 inch screen. Paired with a 22.2 channel surround-sound system, it demonstrates the next generation of audio/video systems.

With the release of this year’s roadmap, which shows broadcasts beginning in 2025, work is now progressing at full speed. According to the roadmap, trial manufacture of systems for home/experiments will arrive in 2008, home broadcast technology in 2011, experimental broadcasts in 2015, finalization of home A/V devices in 2020, and full-service broadcasts in 2025.

The image format is progressive, 7,680x4,320 pixels at 60Hz.　
The 22.2ch sound system was demonstrated using a sumo tournament. The imaging and detail were appealing, with a sense of ‘being there’.
Possible transmission systems for this broadcast format are being examined. Currently 21GHz band satellite broadcasts are the most likely candidate.
In addition to the demonstration, a technical presentation on Super Hi-Vision revealing part of the research efforts.