Re: Announcing The Unicode(R) Standard, Version 9.0

From what I understand, these symbols are from Japanese Broadcasting
Standard and I do see Japanese government use 4K in their official
documents which probably explained the naming.
https://www.google.co.jp/search?q=4k+site%3A.go.jp&oq=4k+site%3A.go.jp
2016/06/22 18:37 "Philippe Verdy" <verdy_p_at_wanadoo.fr>:

>
>
> 2016-06-22 0:02 GMT+02:00 <announcements_at_unicode.org>:
>
>> Important symbol additions include:
>>
>> - 19 symbols for the new 4K TV standard
>>
>> We were told that this standad is not named "4K" but "UltraHD" (UHD)...
> "4K" is just a popular informal term in English medias, or used in
> commercial announcements, here also in English. It is not correctly
> understood everywhere, or would lead to confusion about the required
> conformance level
>
> [Basically, this does not just include a minimum resolution but also a set
> of encoding technologies, support for encryption, support for several
> protocols -- including support for UTF-8 as this standard is now based on
> web standards -- and no longer requires the MPEG envelope, but will rather
> use streaming over IP. For broadcasting, it also includes a new signal
> format requiring a new hardware tuner and demultiplexer and channels will
> transport more than just audio and videos, and will also have dynmically
> changing parameters (resolution, color planes, supplementary planes for
> stereoscopic 3D, supplentary streams for 5.1 sound, possibility of reducing
> the bandwidth usage dynamically for some programs, so that channel
> producers can negociate their mutual bandwidth need on the multiplex
> support, and add/remove supplementary streams, including for advertzing, or
> for renewing usage rights to the authorized subscribers with conforming
> devices... All this is also supported on the new DVB-T2 standard for
> broadcasting, but the format is designed to be transportable as well over
> various networking media, including fiber, DSL, mobile internet, or relayed
> over VLANs. For "4K" resolution, the requirement on devices is not just on
> the tuner or demuxer, but also in terms of minimum performance level for
> the codec which will also support secondary streams for error corrections,
> possibly via other connections, such as correcting a received broadcast
> using a separate Internet access, which may also be used to negociate and
> renew decryption keys for paid programs.]
>
> The UltraHD logo (for use on sold products) is set accordingly (and
> already there's another DVB-T2 logo for hardware decoders that are still
> not ready for UltraHD, but may be eligible later via firmware updates,
> because existing DVB-T tuners will not be able to decode the signal even if
> they support the necessary codecs and are able to display the 4K
> resolution). For cable decoders or "boxes" propsoed by ISP, there are
> separate specifications, but they are controled by the ISP. However they
> will support the UltraHD streams and will implement the necessary virtual
> networking interfaces in their router. For mobile devices, this will
> support as long as you have the support for the 4G/5G network, the rest
> will be a driver update or will be supported by installable apps, but the
> rendering capabilities will be limited by the GPU and screen hardware.
>
> Anyway, aren't all these logos (not "4K", but "UltraHD" and
> "DVB-T"/"DVB-T2") protected by IP rights (with specific rules about their
> conforming usage, and a design for the shapes) ?
>
>
Received on Wed Jun 22 2016 - 22:54:16 CDT