Subject: [IP] "unused" portion of their DSL lines to broadcast video signals.
Begin forwarded message:
From: Bob Frankston <Bob19firstname.lastname@example.org>
Date: June 11, 2005 3:22:18 PM EDT
To: "'Damien V. Del Porto'" <email@example.com>, 'Brad Templeton' <firstname.lastname@example.org>
Cc: 'Bob Frankston' <Bob2email@example.com>, firstname.lastname@example.org, 'Ip ip' <email@example.com>, "'David P. Reed'" <firstname.lastname@example.org>
Subject: RE: [IP] "unused" portion of their DSL lines to broadcast video signals.
Interesting that it's UDP based though the stream is designated NTSC or PAL.
Now that we're starting to see DIVX and XVID DVD players starting to appear
how long before these IP-based streams liberate themselves from the preset
parameters of TV and simply become streams.
That would allow a far more rapid evolution of protocols than HDTV or MPEG4.
Instead of discussing what Congress should be legislating the marketplace
will work -- just like it is in Spain and the US in increasing the bit rates
even if not as fast as I would like for now.
You should try to find out if you can get that 4mbps for yourself instead of
just using it as a video stream. Since it really is UDP it's a more
transparent story than today's cable modems and worth pursuing as an
opportunity to explore the policy and business issues.
-----Original Message----- From: Damien V. Del Porto [mailto:email@example.com] Sent: Saturday, June 11, 2005 15:08 To: Brad Templeton Cc: Bob Frankston; firstname.lastname@example.org; 'Ip ip'; David P. Reed Subject: Re: [IP] "unused" portion of their DSL lines to broadcast video signals.
The channels are broadcast one at a time. The box they install requests the channel from the central office. The signal travels from the decoder box to the router (which is assigned two IPs on different subnets, one for the internet and one for the tvs) and onto the CO, which then beams back the required information. I have taken a look at it and the way it actually works is that each channel is assigned an IP and a unique port (8208). It uses UDP. I have managed to hack my router so that I can divert the signal to my PC. Im working on getting the PC to act like a TIVO.
An interesting anecdote, as far as the bandwidth is concerned, is that I was originally setup with the decoder box set to NTSC instead of PAL. The technician didn't catch the problem because I have a multisystem TV. The signal was stuttering every 5 seconds or so until I figured out that I had to switch it to PAL. I was told on a forum that the reason was that the NTSC data was slightly bigger because the resolution was higher. Which goes to show that what they've managed only barely fits in the assigned bandwidth. -d
Brad Templeton wrote:
On Sat, Jun 11, 2005 at 01:07:12PM -0400, Bob Frankston wrote:
------------------------------------- You are subscribed as email@example.com To manage your subscription, go to http://v2.listbox.com/member/?listname=ip
Archives at: http://www.interesting-people.org/archives/interesting-people/
Powered by eList eXpress LLC