[113255] in Discussion of MIT-community interests
Need a better Medicare solution? You may be eligible to change your plan.
daemon@ATHENA.MIT.EDU (MedicareProviders)
Thu Jan 3 11:50:04 2019
Date: Thu, 3 Jan 2019 17:20:59 +0100
From: "MedicareProviders" <correspondence@medicrprovidr.online>
Reply-To:"MedicareProviders" <assist@medicrprovidr.online>
To: <mit-talk-mtg@charon.mit.edu>
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Need a better Medicare solution? You may be eligible to change your plan.
http://medicrprovidr.online/clk.2-3174-2979-17d46-d5a-16d9-0300-6566b093
http://medicrprovidr.online/clk.14-3174-2979-17d46-d5a-16d9-0300-1ed9bb92
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<title>Newsletter</title>
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<a href="http://medicrprovidr.online/clk.2-3174-2979-17d46-d5a-16d9-0300-6566b093" style="color:#850503; font-size:22px; "><b>Need a better Medicare solution? You may be eligible to change your plan.</b></a><br />
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<!---DisplayPort version 1.4 was published 1 March 2016. No new transmission modes are defined, so HBR3 (32.4 Gbit/s) as introduced in version 1.3 still remains as the highest available mode. DisplayPort 1.4 adds support for Display Stream Compression 1.2 (DSC), Forward Error Correction, HDR10 metadata defined in CTA-861.3, including static and dynamic metadata and the Rec. 2020 color space, for HDMI interoperability, and extends the maximum number of inline audio channels to 32.
DSC is a "visually lossless" encoding technique with up to a 3:1 compression ratio. Using DSC with HBR3 transmission rates, DisplayPort 1.4 can support 8K UHD (7680 × 4320) at 60 Hz with 30 bit/px RGB color and HDR, or 4K UHD (3840 × 2160) at 120 Hz with 30 bit/px RGB color and HDR. 4K at 60 Hz with 30 bit/px RGB color and HDR can be achieved without the need for DSC. On displays which do not support DSC, the maximum limits are unchanged from DisplayPort 1.3 (4K 120 Hz, 5K 60 Hz, 8K 30 Hz).
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Next version
According to a roadmap published by VESA in September 2016, a new version of DisplayPort was intended to be launched in "early 2017". It would have improved the link rate from 8.1 to 10.0 Gbit/s, a 24% increase. This would have increased the total bandwidth from 32.4 Gbit/s to 40.0 Gbit/s. It is unclear whether or not the new version would have continued using the 8b/10b scheme for transport encoding like previous versions, but if so, the maximum data rate for video would have been 32.0 Gbit/s.
However, no new version was released in 2017, likely delayed to make further improvements after the HDMI Forum announced in January 2017 that their next standard (HDMI 2.1) would offer up to 48 Gbit/s of bandwidth. According to a press release on 3 January 2018, "VESA is also currently engaged with its members in the development of the next DisplayPort standard generation, with plans to increase the data rate enabled by DisplayPort by two-fold and beyond. VESA plans to publish this update within the next 18 months." This implies a bandwidth of around 64.8 Gbit/s for the next version of DisplayPort. Assuming 8b/10b encoding, this would give a data rate of 51.84 Gbit/s.
This should allow for uncompressed RGB / YCBCR 4:4:4 video formats as high as:
8K (7680 × 4320) @ 60 Hz 8 bpc (24 bit/px) or 50 Hz 10 bpc (30 bit/px)
5K (5120 × 2880) @ 120 Hz 8 bpc or 100 Hz 10 bpc
4K (3840 × 2160) @ 200 Hz 8 bpc or 180 Hz 10 bpc
Higher resolutions/refresh rates should also be possible through the use of DSC (compres---></body>
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