[opendtv] Re: High-Def Forced To Down-Convert
- From: John McClenny <jamcclenny@xxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Mon, 30 Jan 2006 21:13:33 -0600
the cable guys are restricted from doing this downconversion by FCC regs.
Not sure how this is going to change HD VOD/OTA
On 1/25/06, Monty Solomon <monty@xxxxxxxxxx> wrote:
>
>
> HIGH-DEF FORCED TO DOWN-CONVERT
> In deal reached by eight-company consortium
> By Paul Sweeting 1/23/2006
>
> Some buyers of HD DVD and Blu-ray Disc players might not get
> everything they bargained for.
>
> In a deal reached this week after tense negotiations, the
> eight-company consortium behind the Advanced Access Content System,
> created for use by both high-def formats to prevent unauthorized
> copying, has agreed to require hardware makers to bar some high-def
> signals from being sent from players to displays over analog
> connections, sources said.
>
> Instead, the affected analog signal must be "down-converted" from the
> full 1920x1080 lines of resolution the players are capable of
> outputting to 960x540 lines--a resolution closer to standard DVDs
> than to high-def. Standard DVDs are typically encoded at 720
> horizontal by 480 vertical lines of resolution.
>
> The 960x540 standard stipulated in the AACS agreement represents 50%
> higher resolution than standard-def, but only one-quarter the
> resolution of full high-def. Whether a particular movie is
> down-converted will be up to the studio.
>
> The players will be required to recognize and respond to a digital
> flag, called an Image Constraint Token, inserted into the movie data.
>
> If the flag is set to "on," the player must down-convert the analog
> signal. If set to "off," the player can pass the full high-def signal
> over the analog connections.
>
> The studios are divided over whether to require such down-conversion
> and are likely to follow separate policies.
>
> Hardware makers had generally resisted the requirement, but under the
> new deal, ICT recognition will be included in the AACS license that
> all device makers and playback software vendors will have to sign.
>
> ...
>
>
> http://www.dvdexclusive.com/article.asp?articleID=2657
>
>
>
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