 
Phattieg
join:2001-04-29
Jacksonville, FL
| Boy I can't wait... This is going to be some neat stuff once it gets off the ground, because it means more channels, including HD channels.  I hope all goes well with the deployment. The only problem is, I'm a rep who answers the phones, so I hope the troubles, if any, aren't so strange they cause massive confusion with trouble shooting.
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SIPPhone/Gizmo # 17476200648 / PIMPNET Chatline / Ran by Asterisk & Slackware 10.1. | |
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Ahrenl
join:2004-10-26
North Andover, MA
| How many do they need to send? What is the lag in sending the channel from the hub? If it's only a few seconds, I'd think they could just send the channel you've selected, + 2 or 3 in either direction ( times 2 for dual tuner boxes ). Since there's a lag anyway in changing from the guide, I think people would expect that. Freeing up bandwidth can only be good.. | |
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codee
Premium
join:2001-10-01
Minneapolis, MN
 ·Sprint Mobile Broa..
| Re: How many do they need to send? said by Ahrenl  :What is the lag in sending the channel from the hub? If it's only a few seconds, I'd think they could just send the channel you've selected, + 2 or 3 in either direction ( times 2 for dual tuner boxes ). Since there's a lag anyway in changing from the guide, I think people would expect that. Freeing up bandwidth can only be good.. What I've been hearing/reading during testing is that it is actually FASTER in most cases tuning a SDV channel then a linear channel. | |
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justbits
More fiber than ATT can handle
Premium
join:2003-01-08
Chicago, IL | Boundary cases? What happens when everybody in the neighborhood tunes in to a different channel? Sure the possibility of that happening is probably extremely low, but I haven't heard anything about that boundary condition. | |
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| BosstonesOwn
join:2002-12-15
Everett, MA
clubs: | Re: Boundary cases? Whats the error message now ?
"Please wait while we make this channel available" ? Some thing along those lines ?
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"It's always funny until someone gets hurt......and then it's absolutely friggin' hysterical!" | |
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| | patcat88
join:2002-04-05
Jamaica, NY
| Re: Boundary cases? said by BosstonesOwn :Whats the error message now ? "Please wait while we make this channel available" ? Some thing along those lines ? Yep, same way VOD errors out. Nothing you can do unless you have FIOS TV, or switch to satellite. | |
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swhx7
Premium
join:2006-07-23
Elbonia
 ·RoadRunner Cable
| said by justbits :What happens when everybody in the neighborhood tunes in to a different channel? Sure the possibility of that happening is probably extremely low, but I haven't heard anything about that boundary condition. The probability may not be so low. When the benefits of SDV are described it always seems to be based on the assumption that each customer watches one show at a time for the length of a show, or at least the time between commercials. But what about the practice of just flipping through the channels, one after another, to see what's on? I believe this is very common, and it would seem to defeat the benefits of SDV. | |
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MadMANN
Premium
join:2005-08-19
·Comcast
| Re: Boundary cases? The probability may not be so low. When the benefits of SDV are described it always seems to be based on the assumption that each customer watches one show at a time for the length of a show, or at least the time between commercials. But what about the practice of just flipping through the channels, one after another, to see what's on? I believe this is very common, and it would seem to defeat the benefits of SDV.
If you really knew how it works, you wouldn't worry too much. With anything new, there are bugs in the beginning, but the benefits will be awesome for everyone once it is actually launched working as it is intended. I, for one, can't wait. | |
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| | nanoflower
join:2002-07-14
30876
| Depending on how things are done there's no need for there to be a problem. They could allocate bandwidth that's free for both data and videeo. So if the switched video needs more bandwidth because of people channel flipping or everyone watching another channel then that bandwidth is allocated to video. If not then it gets allocated to data. The data bandwidth would be used for extra data features like Powerboost instead of being a constant data rate booth. | |
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| | sensualpoet
join:2004-09-19
Toronto, ON
| said by swhx7 :said by justbits :What happens when everybody in the neighborhood tunes in to a different channel? The probability may not be so low. ... But what about the practice of just flipping through the channels, one after another, to see what's on? SDV does not have to be implemented as an all-or-nothing strategy. If a node neighbourhhood is 500 TV STBs, and there are 500 channels from the cableco, you'd never get all 500 being used at once. So you could continue to send, via non-SDV, the most popular 100 channels, 24/7 -- and only switch the remaining 400. You'd still save masses of bandwidth which could be recycled for On Demand and HD uses. SDV, other than some software on the STB, is efficient network management magic at the head-end. The "neighbourhoods" can be reconfigured on the fly, if you wanted to, shrunken or enlarged, to suit usage patterns.
Between reclaiming analog spectrum and SDV, coax has a huge amount of life in it yet. | |
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| CycloneGT
join:2001-11-15
Boyds, MD
| Re: Not Looking Forward to SDV Well, all of the Comcast people would likely have to replace their boxes to, unless this can be accomplished with a software upgrade of all of the existing deployed Comcast cable boxes.
Of course, I'm sure the folks at Tivo would love to sell you a Tivo Series 4 with SDV. | |
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| | BosstonesOwn
join:2002-12-15
Everett, MA
clubs:
·Comcast Formerly ..
| Re: Not Looking Forward to SDV All digital cable boxes have rf return and some use telephone returns. So when it requests authorization to tune a channel the SDV kicks the channel on and down it comes.
The cable card can't make that request. So It's stuck.
My guess is 2 way cable cards will have to be rolled out in the areas they put this in. So your tivo may need a software upgrade. But should work.
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"It's always funny until someone gets hurt......and then it's absolutely friggin' hysterical!" | |
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myosh
join:2001-05-03
Cupertino, CA
 ·Pacific Bell - SBC
| Re: Not Looking Forward to SDV According to the folks at the TiVo Community forums (»www.tivocommunity.com), two-way communication can't be implemented in software. Hopefully someone can build an external device (maybe USB) that can enable two-way communication. Otherwise, I'm stuck. | |
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| | | | voipguy
join:2006-05-31
Forest Hills, NY
| Re: Not Looking Forward to SDV Doesn't the Tivo Series 3 have an internet connection? I think that it would be possible, by Tivo in cooperation with cable providers (and maybe CableLabs), to work out a software interface that would permit the Tivo to initiate channel change requests out the ethernet to a server at the Cable Company. That server would handle the requests in the same manner that they would from a DOCSIS-based return set top box.
Needs work - but it can be done. | |
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| | | | BosstonesOwn
join:2002-12-15
Everett, MA
clubs:
·Comcast Formerly ..
| My understanding is as long as they followed the standard and pinned out every pin like they were supposed to and didn't just do a quicky only what was needed the box will take a firmware update and work.
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"It's always funny until someone gets hurt......and then it's absolutely friggin' hysterical!" | |
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| smcallah
join:2004-08-05
Home
| It's not the CableCard that needs to be bi-directional, it's the hardware it's installed in that needs the 2-way communication channel back to the headend.
CableCards simply are for decrypting the encrypted pay channels.
SDV will affect the free channels you receive without CableCard as well, because the hardware receiving has no 2-way communication. But since the free channels are likely the most popular channels, they will not be put on SDV, because there would be no bandwidth savings.
There are cable boxes now that use current CableCards that support 2-way communication. They have a DOCSIS modem in the box that does the 2-way communication. The CableCard is just decrypting the pay channels, as it does in any CableCard device.
Enabling 2-way communication requires new hardware, not a new CableCard. | |
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Blasterbator
Sent By Grocery Clerks
join:2001-02-20
Jackson, MS
·Cox HSI
| Re: Not Looking Forward to SDV The CableCard will do much more in the future. Theoretically you'll be able to run OCAP apps downloaded from the cable operator on the CableCard enabled device (e.g. An OCAP compliant version of Comcast's TV Guide navigator w/ VOD capability on your CableCard enabled tele or set-top).
The set-top will still need to be able to talk to the SDV server that is responsible for allocating bandwidth via QPSK, QAM or whatever data path is used for the return. | |
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| | | smcallah
join:2004-08-05
Home | Re: Not Looking Forward to SDV No, it won't be the CableCard doing more in the future, it will be the OCAP compliant hardware that is doing more, as you said.
The CableCard will just be decrypting the pay channels as usual. | |
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FIOS
join:2007-03-10
Netcong, NJ | Fiber To The Premise is the only way to go. The only way to delight the subscriber is to bring fiber into his building. | |
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| HyPeRbAnD
join:2006-01-07
Stow, MA
edit:
April 27th, @02:14PM
| Re: Fiber To The Premise is the only way to go. said by FIOS :The only way to delight the subscriber is to bring fiber into his building. I agree, but cable co's are not at that point yet. Coax still has many years ahead of it. There are so many things cable co's can do to free up bandwidth before running FTTH. I think you will see FTTC (Node to passive coax network) before you see FTTH.. | |
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MadMANN
Premium
join:2005-08-19
·Comcast
| Re: Fiber To The Premise is the only way to go. *SIGH*
Are you really going to make me pull the other dozens of bad review links? I really don't feel like it, which is why I just pulled the first one I saw yesterday.
The point was that not EVERYONE is "delighted" as the above apparent ad exec from Verizon would have you believe. | |
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telcolackey
The Truth? You can't handle the truth
join:2007-04-06
Death Valley, CA
| said by FIOS :The only way to delight the subscriber is to bring fiber into his building. Sounds like messaging straight from Verizon marketing
FTTP stands for Fiber To The Press release. This is mostly hype and the smart techies know it. If fiber to the home is needed today, why aren't homes wired with fiber? Why are most office drops still twisted pair?
Copper and COAX have a long way and many technology advancements to go before home capacity requires a new media. Then, and only when it is needed, the fiber becomes deeper in HFC. Anything other than that is wasted capital for anyone other than telco's with 50 year old infrastructure. | |
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batterup
I Can Not Tell A Lie.
Premium
join:2003-02-06
Netcong, NJ
clubs:
·Verizon Online DSL
| Re: Fiber To The Premise is the only way to go. said by telcolackey : Why are most office drops still twisted pair? Because they are in Death Vally? | |
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batterup
I Can Not Tell A Lie.
Premium
join:2003-02-06
Netcong, NJ
clubs: | Give the remote to your wife. How long will it take this *switch* to switch channels? | |
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| BosstonesOwn
join:2002-12-15
Everett, MA
clubs:
·Comcast Formerly ..
| Re: Give the remote to your wife. The way my wife surfs . she will stress the network out with in 15 minutes. Then maybe I can get dish networks full package again.
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"It's always funny until someone gets hurt......and then it's absolutely friggin' hysterical!" | |
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batterup
I Can Not Tell A Lie.
Premium
join:2003-02-06
Netcong, NJ
clubs:
·Verizon Online DSL
| Re: Give the remote to your wife. said by BosstonesOwn :The way my wife surfs . she will stress the network out with in 15 minutes. Then maybe I can get dish networks full package again. I can see who wears the remote in your family. | |
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| | | BosstonesOwn
join:2002-12-15
Everett, MA
clubs: | Re: Give the remote to your wife. Yeah the one who actually watches tv  | |
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| | patcat88
join:2002-04-05
Jamaica, NY
| said by BosstonesOwn :The way my wife surfs . she will stress the network out with in 15 minutes. Then maybe I can get dish networks full package again. The MPEG encoder can be set to bitrob the first 10 secs of a new stream, so if your "surfing" you are loading a degraded version, and the degradation will go away in a few secs if you decide to stay on it. | |
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| Tikker_LoS
join:2004-04-29
Regina, SK
·SaskTel Saskatchewan
| said by batterup :How long will it take this *switch* to switch channels? I'm assuming it'll be similar to Satellite or IPTV(multicast delivery)
With my IPTV it generally takes less than a second to tune to the channel
you learn pretty quickly that you can't really channel surf like the old analog cable days, but you become more accustomed to just using the mini guide, and scrolling thru the names of the shows on to choose what to watch | |
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Blasterbator
Sent By Grocery Clerks
join:2001-02-20
Jackson, MS
·Cox HSI
| Re: Give the remote to your wife. Satellite is broadcast, i.e. fundamentally different.
IPTV and SDV can be implemented where the operator is multi-casting the channel on a particular node or group of nodes only if someone is tuned to the channel, each viewer after the first is just joining the multi-cast group (as opposed to broadcasting each channel to everyone all the time). | |
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batterup
I Can Not Tell A Lie.
Premium
join:2003-02-06
Netcong, NJ
clubs:
·Verizon Online DSL
| Re: Give the remote to your wife. said by Blasterbator :Satellite is broadcast, i.e. fundamentally different. IPTV and SDV can be implemented where the operator is multi-casting the channel on a particular node or group of nodes only if someone is tuned to the channel, each viewer after the first is just joining the multi-cast group (as opposed to broadcasting each channel to everyone all the time). Switch is the operative word. Is this a hardware or software switch? | |
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vatechie
join:2005-09-03
Midlothian, VA | SPEEDS ? This process sounds interesting but how will this effect bandwidth up and down? | |
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Scree
In the pipe 5 by 5
join:2001-04-24
Mount Laurel, NJ | hmmm So this is supposed to be an improvement? Will it make OnDemand even slower too? (not to mention never seems to work on the first try either) lol | |
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| CWO333
join:2005-02-24
Chicago, IL | Re: hmmm It could actually improve OnDemand because more bandwidth is available for it to use. Although, I've never had a problem with OnDemand at my house so its probably your area. It still shouldn't hurt it though. | |
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tmc8080
join:2004-04-24
Floral Park, NY | let the games begin... Comcast is feeling the heat in NJ from Verizon... and satellite. Also.. cablevision will begin to see problems when they upgrade to GPONS in the northeast. | |
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Comcast Testing SDV In Denver & New Jersey
Not Looking Forward to SDV
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