djrobx
join:2000-05-31
Valencia, CA
 ·PHONE POWER
 ·AT&T U-Verse
·AT&T CallVantage
·Time Warner VOIP
 ·RoadRunner Cable
| Greater capacity ... Yes, of course
They can have an unlimited number of channels. But how do they intend to send muliple streams of full quality HDTV in addition to internet service?
We're talking about a technology that should be "better than modern" since it's not due for another half-decade, not something that can't even do a current HDTV stream at full quality!
It will be particularly interesting to see how they implement the DVR. To really be competitive they need to offer a DVR service. Modern DVRs are dual tuner, which presents an issue with the already cramped HDTV bandwidth requirements. SBC could theoretically offer a massive centralized DVR and just have everone pooling from it. More or less it would be video on demand, as long as you ordered it in advance. Although there are probably legal obstacles with such an idea. 
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\\ROB - a part of the SCB local network |
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Topmounter
Sent By Grocery Clerks
join:2001-02-20
Evergreen, CO
·Cox HSI
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They can have an unlimited number of channels. But how do they intend to send multiple streams of full quality HDTV in addition to internet service?
You can do anything you want as long as it doesn't use more than 20-25 Mbps per DSL line
The HD spec for digital delivery is 19.2 Mbps. You can crunch it more if you are willing to give up some quality.
The standard bit-rate for SD is between 3 and 4 Mbps.
So in theory you "could" deliver (1) HD channel, (1) SD channel simultaneously and still have a Mbps or two left over for data traffic.
Unlike current cable television and satellite delivery using a "broadcast" network, with DSL the video will all be switched, the channel will only be sent to your home from the CO (or whatever the video distribution point is in a given telco's network architecture) if you select the channel.
If you want more channel capacity beyond what can be delivered using 20-25 Mbps per DSL link, then you are going to have to provision another DSL line on a separate copper pair. |
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astint1
join:2004-12-20
Houston, TX
| Its already been done in some neighbohoods
People in Houston should already know about Clearworks from Eagle Broadband. Their site is »www.eaglebroadband.com/services/ .
TV, Phone, Internet and Security all over 10Mbps Fiber to the Curb. They don't block ports so your neighbors will show up in Network Neighborhood/My Network Places. |
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removed
Crisis Management Squad
Premium,VIP
join:2002-02-08
Houston, TX
clubs: | »www.thelakesoneldridge.com/
Uh, yeah, except it's not worth the cost. Starting in the 700's! PASS. |
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