Japanese TV station off station for 8k display Olympics




The Japanese television station NHK’s test transmissions show in six different locations in Japan of some elements of the Olympic Games in Rio de Janeiro “Super Hi-Vision ‘, the name of the sender for 8k broadcasts.

NHK Super Hi-Vision The test transmitter via satellite will show a mix of 8K and 4K broadcasts. The aim is to broadcast live images technique fully mastered to have the Olympic Games in Tokyo in 2020. The special transmitter has a limited range and since 1 August live.

On the days of the special broadcasts can therefore be looked at a limited number of sports in special locations that have been opened by NHK in the period from 6 to 22 August between 10 am and 20 pm. The opening and closing ceremony at 8k to watch live. In total there are 130 hours of television.

The 8k-image consists of 7640×4320 pixels, a resolution that is sixteen times higher than with a full-HD variant and four times higher than 4k. Like 4k 8k is denoted by ‘UHDTV’, except in Japan where 4k and 8k called Hi-Vision Ultra Hi-Vision. The 8k uncompressed recordings can provide 100Gbit / s data transfer. Then it must be compressed before it can be broadcast live. This results in a signal of tens of megabits per second, which also needs to be decoded by the user. Audio is sent in ‘3D 22.2-channel surround sound.

NHK hopes 8k to send directly to users at home in 2018 so that the Olympic Games in Tokyo in 2020. whole can transmit at 8k.


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