Le vendredi 30 juin 2006 à 23:09 -0400, Nicholas a écrit :
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> > > So, I understand that my wish doesn´t need a "special" chip which would
> > > make the relation between the PCI interface and the Ethernet interface,
> > > right ?
> > 
> > If you are looking for a PCI card that provides Ethernet ports, they are widely
> > available.
no, it´s not the problem to have Eth ports on the PC side, as you notice
yourself _Dieter_ even low-end PC privide one port.
Rather, a chip on the PC´s mobo which route the PCI signal through
Ethernet.
(and on the monitor g-card, the contrary, though it could be not
necessarly to bother with a PCI slot, as you suggest)
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> > 
> > My hope is that the OGC chip will handle enough of the decoding that we
> > can use an inexpensive, low power CPU.
> 
> Yes, that would be optimal. 
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So, the g-card would have an OGC chip + a low power CPU + an Eth port ?
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> 
> > 
> > > Anyway, can we envisage in the flat panel a board with an Ethernet
> > > connector and a PCI slot on which one plugs the g-card ?
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> > I was thinking of taking the OGC chip and putting it directly on that
> > board.  Save the cost of the PCI connectors.
Well, for the purpose of a flat panel with a g-card, I´ve trangressed my
own rule to not bother with the assembly possibilities/limitation
firstly.
I realise that I was focusing on PCI slot just because the g-card could
be removable from the monitor, hence upgradable. But this could be
achevied differently.
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> 
> Not just the cost - The space of a connector. If everything is onboard,
> you can easily make everything have a maximum height of, say, about 10cm
> (to account for the heatsink on the CPU. Assuming that you can either
> bolt a small heatsink to the metal case or even use a low power SoC, you
> could probably half that height with a little work. Granted, the
> graphics card would also get hot, but it can be passively cooled through
> the case as well. The problem with PCI is that the boards reach
> perpendicular to the mainboard, so in less you want a really weird
> shaped box to put this in, you have to have a quite tall inclosure.
I stand on the monitor side, Nick, and by "mainboard" I don´t see
exactly on what side you stand (maybe the both)
Beside the cost, unless a 90° PCI slot exist, one can use a raiser card
too.
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> 
> > 
> > > Does that require a "special" chip between the PCI slot and the Ethernet
> > > connector ?
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> > If you want a single chip it would probably have to be special.  I think we can
> > do it with a few off the shelf chips, but I expect it would take more than one.
> > 
> > It would be really nice if we could find a way to avoid needing a general
> > purpose CPU.
> > 
> 
> You could always just use another FPGA to implement the Ethernet<->PCI
> adapter. This also gives you a nice, fast, 10Gbps or so LVDS connection
> to your GPU as an alternative.
Certainly the things are a little bit confused in my mind, but this kind
of implementation is what I was speaking above.
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> 
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> > By "more than a modem/router", do you mean "have multiple Ethernet
> > ports", or something else? 
no, something else, below
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> Certainly, if you have a DSL modem with
> > some variety of hub/switch/router built-in, you could plug the
> > screen into the DSL hub rather than into the computer.  Assuming
> > the DSL modem has a built-in firewall that you trust.
Firewall and all, that was what I mean.
I suppose that that differs from a country to an other, but there´s 5
years ago, French ISP let the consumer choose his DSL modem/router.
Nowadays one doesn´t have the choice anymore, you take the ISP´s box
with the triple play (Voip, TV, Internet) and optionally suscribe to a
security service (AV, FW, anti-spam, and so on). All that let me suppose
that such ISP box is more than a modem/router.
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> 
> This brings up the issue of security - constantly sending your entire
> screen over an insecure network is not a good idea.
The really frightening thing is a compromised Cisco box, projects this
idea on every ISP box which seem to be more than dumb modem/router...
Though, it´s another topic.
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> 
> > > As well one can foreseen that the next generation of TV will have far
> > > more logic inside, more capacities to handle graphics or codec, and
> > > maybe not so different than a terminal.
> > 
> > Any current TV that has a tuner for OTA digital will be able to decode
> > whatever codec is used for OTA.  (here OTA uses mpeg2ts)  Whether there
> > is a way to feed such a TV mpeg2ts data via a path other than the RF
> > input is another question.
Do cablecos have not addressed this question ? (at least on the
principle)
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> 
> Projectors nowadays sometimes have VGA, DVI, and Composite/Component
> inputs. Not to limit this to Projectors, but they are  often much better
> equipped for this type of thing than an average TV.
So the electronic is there, the displaying device differs (Projector´s
lamp, CRT tube, LCD matrix, though each has their own implications)
Hence, the idea of a monitor with graphical ressource inside is nearby
to arise.
Wouldn´t be strategic for OGP/C to provide a balanced chip + an as low
power cpu as possible combination ?
And why not, an fpga implementing video signal through Ethernet, which
seems to be the best path available ?
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> 
> nick
> 
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