OCAP developed before DCAS
on
CableCARD In-Depth
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· Score: 3, Informative
The article gets most things right, except the part regarding OCAP--the middleware layer that permits interoperability. OCAP was developed long before DCAS and its purpose was not to enable DCAS but to enable retail interoperability. The CableCard enabled set top boxes or TVs to operate on any network, because SA networks, used primarily by Time Warner Cable, are not compatible with Motorola networks (used primarily by Comcast). The CableCard removes the network dependencies from the receiver. Along with a variety of other features, OCAP enables the network independent receiver to actually be able to tune to programs on specific network, because the electronic program guide data is proprietary to the network. Thus, the cable operator will write a specific application that will run on top of the OCAP middleware on any receiver on its network that will decode the proprietary guide data to enable an interactive program guide for program selection.
'Tis a tale told by an idiot. Full of sound and fury signifying nothing."
Unlike his coronation speech which had lots of somewhat subtle biblical references, he had none that I could perceive in this speech. So I'm gonna add one that the missed. With regard to making the tax cuts permanent and cutting the deficit in half, he left out Manna from heaven.
Iraq really still does have WMD. Its just another government coverup. You see, we sold them the WMD and have the receipts. If the WMDs were found then it would come out that they got them from us. So its better if they are not found.
Will there be a national drivers test? Will the TSA administer it? What happens if I can't parallel park?
Re:For industry, get a PhD in something else
on
PhD's in the Industry?
·
· Score: 2, Insightful
I started with a BSEE then got a Ph.D. in Physiology because I was interested in Biomedical Engineering. I did 3 years of a post-doctoral research at Harvard and Columbia and then did the academic thing for 7 years. During all that time I did a fair amount of software development for my research. When I had it up to my earlobes in academic and medical school crap, I tried various stints as a programmer, finally getting some good positions doing S/W development work. My first one outside of academia was landed because I had a Ph.D. and the owner of the company said that I would have good problem solving skills, even though I lacked specific experience. This was a stepping stone to my current position where I am a senior S/W engineer earning a good 6 figure salary. Again, I had some requisite experience even though I lacked formal S/W engineering training. I would say that the degree did open doors for me.
Would I do it again? Probably not however. I was burned out for two years following my dissertation! However, I had an ulterior motive for going to graduate school--it kept me out of Vietnam!
Interesting. Guide data is generally proprietary and channel line ups differ across cable networks. I suspect that the program lineup for strict OTA programming carried over cable (without a CableCard) follows the virtual channel table in PSIP and that TitanTV.com is utilizing that data.
I agree with this. One issue is that for OTA content, the HD tuner card and software must rely on PSIP data for program guide. Cable does not use PSIP. Consequently, the channel line up indicated by the PSIP data may not correspond to the program line up on the cable. Furthermore, the user of the card will not have access to the SI or EPG data, from which the actual lineup of programs on cable is derived.
I am well aware of this. What I am referring to is cable content from non-OTA sources, which is the bulk of the content that cable carries. For OpenCable devices without CableCards, the only content that can be rendered by the receiver would be non-encrypted content most likely delivered from OTA sources.
no. The HD (1394, DVI) outputs on cable boxes are protected for for copy protected content. The data path in the cable box for unencrypted content is rather well protected. There is no QAM output from cable receiver.
The encoding schemes in north america are those developed by Scientific Atlanta and Motorola. The encryption is rather strong (that is, it has not been cracked yet) and keys are changed every 3 seconds. Additionally, the encryption schemes are proprietary. It is true that the 1st digital boxes didn't have much punch, but they were able to decrypt content and do the mpeg decoding, but not much else. The next crop of digital cable devices, will have removable security modules, but the jury is out about just how secure those will be compared to the embedded security currently being used.
Its fine to have a card that can receive QAM signals from cable. However, as the article states, this card can only receive in-the-clear (unencrypted) content. Since most cable operators in north america encrypt their high value content (HD is definitely high value), the ability of the card to decode QAM signals is of limited value. Additionally, the modulation modes are not evident. That is, can the card decode 64QAM and 256QAM?
Its great to find the point source of the failure, but after reading the report of the committe, it was clear that the real cause of the failure was systemic, going back many, many years.
It wasn't mentioned in the review or any of the followup postings that I could find, but Yassini could be considered to be the father of the cable modem. He was responsible for leading a team in the development of open standards and certification of the DOCSIS Cablemodem specifications.
OK, the court sez that he can take the IP address with him. BUT it does not state that it has to work. So he moves to a new ISP and manually assigns his IP address. At best it doesn't work. At worse, it duplicates someone elses IP address and they get warning messages. Then the guy who moved sues the other person and ISP for the duplicate IP address. But it turns out that the other guy had it for a much longer time. Then it becomes a class action suit that involves everyone on private subnets that have the same address space. Pretty soon the courts become overwhelmed and civilization as we know it ceases to exist.
A small group of mountain residents, west of Boulder Colorado formed the Magnolia Road Internet Coop (http://www.mric.coop) nearly 3 years ago with our 1st paying members going online about 2 years ago. As a rural community, there is no access to cable modem service nor DSL. ISDN is very expensive for limited bandwidth. Satellite options have proven unsatisfactory and expensive.
Currently we have nearly 200 subscbribers and cover about 250 square miles of mountainous terrain. The cooperative is run by volunteers, which we feel is the only way to keep costs down and subsequently, subscriber fees. The current rates are $50/mo for up to 3 mbit/sec bandwidth and $85 for 802.11a service. We expect to be debt free early next year at which time fees will be reduced.
We have a very viable business model where commercial ventures in the area are struggling with high debt loads.
So much of the disucssion about this new movie is about left this or right that, that I have to reply to the main topic and not individual threads. What is it about left vs right? Each side treats the other like it has the plague. But afterall, we all know that 'left' in other languages is sinister or gauche while 'right' is adroit. Why is liberal equated with the left? I think there are, or at least must be, liberal righties. The Bush administration has definately taken us to where we haven't been before. This was kind of liberal interpretations of the constitution. But wasn't this country founded on some very liberal, forward thinking ideas? Lets wake up and engage in real discussion and debate rather name name calling or labeling.
You'll probably have to divert some water through a small sluice, but you'll have to find out if you legally can do this. You can emphasize that it will be 100% conservative, ie., no water will be consumed. A turbine in the sluice can be geared to drive an generator at higher speed. Will no doubt have to play with the size of the sluice and the gearing etc, since you will have essentially no head to play with.
I think that you'll have a problem with VPN as well, due to the latency. I was using DirecPC, which was an asymmetric architecture with a phone line return. I saw an increase of about 500 msec in ping times using DirecPC over phone modem. For two-way satellite, the latency will probably be about 1 second. This kind of latency killed my VPN connectivity or at best made it unreliable. As an alternative, why don't you set up a neighborhood wireless cooperative sharing a T-1 line. See for example: http://www.magnoliaroad.net.
Nearly everyone is missing the fact that December 13, the day that Bush signed this bill, was a Saturday AND the day that the capture of Sadaam Hussein was announced. Does anyone smell a rat here, besides the one in the hole that the US (or the Kurds) discovered? What a great way to keep the news of the signing a bill that further pecks away at the Bill of Rights than to do it on a weekend and when another really big news item is released. The media appears to be complicit in publicizing only what the administration wants the public to know.
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The article gets most things right, except the part regarding OCAP--the middleware layer that permits interoperability. OCAP was developed long before DCAS and its purpose was not to enable DCAS but to enable retail interoperability. The CableCard enabled set top boxes or TVs to operate on any network, because SA networks, used primarily by Time Warner Cable, are not compatible with Motorola networks (used primarily by Comcast). The CableCard removes the network dependencies from the receiver. Along with a variety of other features, OCAP enables the network independent receiver to actually be able to tune to programs on specific network, because the electronic program guide data is proprietary to the network. Thus, the cable operator will write a specific application that will run on top of the OCAP middleware on any receiver on its network that will decode the proprietary guide data to enable an interactive program guide for program selection.
There's a saying by neurophysiologists: "If the brain were simple enough to be understood, it would be too simple to understand itself"
If the studios move toward digital content rather than film for their theaters, they will want a high speed method for distribution of that content.
'Tis a tale told by an idiot. Full of sound and fury signifying nothing."
Unlike his coronation speech which had lots of somewhat subtle biblical references, he had none that I could perceive in this speech. So I'm gonna add one that the missed. With regard to making the tax cuts permanent and cutting the deficit in half, he left out Manna from heaven.
Iraq really still does have WMD. Its just another government coverup. You see, we sold them the WMD and have the receipts. If the WMDs were found then it would come out that they got them from us. So its better if they are not found.
I wonder if a recount in ordered whether the Diebold machines will report the same count on the recount as for the 1st count.
The Countdown to the recount has begun!!!
Will there be a national drivers test? Will the TSA administer it? What happens if I can't parallel park?
I started with a BSEE then got a Ph.D. in Physiology because I was interested in Biomedical Engineering. I did 3 years of a post-doctoral research at Harvard and Columbia and then did the academic thing for 7 years. During all that time I did a fair amount of software development for my research. When I had it up to my earlobes in academic and medical school crap, I tried various stints as a programmer, finally getting some good positions doing S/W development work. My first one outside of academia was landed because I had a Ph.D. and the owner of the company said that I would have good problem solving skills, even though I lacked specific experience. This was a stepping stone to my current position where I am a senior S/W engineer earning a good 6 figure salary. Again, I had some requisite experience even though I lacked formal S/W engineering training. I would say that the degree did open doors for me.
Would I do it again? Probably not however. I was burned out for two years following my dissertation! However, I had an ulterior motive for going to graduate school--it kept me out of Vietnam!
Interesting. Guide data is generally proprietary and channel line ups differ across cable networks. I suspect that the program lineup for strict OTA programming carried over cable (without a CableCard) follows the virtual channel table in PSIP and that TitanTV.com is utilizing that data.
I agree with this. One issue is that for OTA content, the HD tuner card and software must rely on PSIP data for program guide. Cable does not use PSIP. Consequently, the channel line up indicated by the PSIP data may not correspond to the program line up on the cable. Furthermore, the user of the card will not have access to the SI or EPG data, from which the actual lineup of programs on cable is derived.
I am well aware of this. What I am referring to is cable content from non-OTA sources, which is the bulk of the content that cable carries. For OpenCable devices without CableCards, the only content that can be rendered by the receiver would be non-encrypted content most likely delivered from OTA sources.
no. The HD (1394, DVI) outputs on cable boxes are protected for for copy protected content. The data path in the cable box for unencrypted content is rather well protected. There is no QAM output from cable receiver.
The encoding schemes in north america are those developed by Scientific Atlanta and Motorola. The encryption is rather strong (that is, it has not been cracked yet) and keys are changed every 3 seconds. Additionally, the encryption schemes are proprietary. It is true that the 1st digital boxes didn't have much punch, but they were able to decrypt content and do the mpeg decoding, but not much else. The next crop of digital cable devices, will have removable security modules, but the jury is out about just how secure those will be compared to the embedded security currently being used.
Its fine to have a card that can receive QAM signals from cable. However, as the article states, this card can only receive in-the-clear (unencrypted) content. Since most cable operators in north america encrypt their high value content (HD is definitely high value), the ability of the card to decode QAM signals is of limited value. Additionally, the modulation modes are not evident. That is, can the card decode 64QAM and 256QAM?
Its great to find the point source of the failure, but after reading the report of the committe, it was clear that the real cause of the failure was systemic, going back many, many years.
I can see it all now. Two lovers holding each other close. One says to the other: "I love to listen to the whirring of your heart!"
I did a calculation that a person riding a bicycle could get 2000 miles per gallon of fat!
It wasn't mentioned in the review or any of the followup postings that I could find, but Yassini could be considered to be the father of the cable modem. He was responsible for leading a team in the development of open standards and certification of the DOCSIS Cablemodem specifications.
OK, the court sez that he can take the IP address with him. BUT it does not state that it has to work. So he moves to a new ISP and manually assigns his IP address. At best it doesn't work. At worse, it duplicates someone elses IP address and they get warning messages. Then the guy who moved sues the other person and ISP for the duplicate IP address. But it turns out that the other guy had it for a much longer time. Then it becomes a class action suit that involves everyone on private subnets that have the same address space. Pretty soon the courts become overwhelmed and civilization as we know it ceases to exist.
A small group of mountain residents, west of Boulder Colorado formed the Magnolia Road Internet Coop (http://www.mric.coop) nearly 3 years ago with our 1st paying members going online about 2 years ago. As a rural community, there is no access to cable modem service nor DSL. ISDN is very expensive for limited bandwidth. Satellite options have proven unsatisfactory and expensive.
Currently we have nearly 200 subscbribers and cover about 250 square miles of mountainous terrain. The cooperative is run by volunteers, which we feel is the only way to keep costs down and subsequently, subscriber fees. The current rates are $50/mo for up to 3 mbit/sec bandwidth and $85 for 802.11a service. We expect to be debt free early next year at which time fees will be reduced.
We have a very viable business model where commercial ventures in the area are struggling with high debt loads.
So much of the disucssion about this new movie is about left this or right that, that I have to reply to the main topic and not individual threads. What is it about left vs right? Each side treats the other like it has the plague. But afterall, we all know that 'left' in other languages is sinister or gauche while 'right' is adroit. Why is liberal equated with the left? I think there are, or at least must be, liberal righties. The Bush administration has definately taken us to where we haven't been before. This was kind of liberal interpretations of the constitution. But wasn't this country founded on some very liberal, forward thinking ideas? Lets wake up and engage in real discussion and debate rather name name calling or labeling.
You'll probably have to divert some water through a small sluice, but you'll have to find out if you legally can do this. You can emphasize that it will be 100% conservative, ie., no water will be consumed. A turbine in the sluice can be geared to drive an generator at higher speed. Will no doubt have to play with the size of the sluice and the gearing etc, since you will have essentially no head to play with.
Y'all missed the most significant 50th anniversary: Tatertots:
/ lo cal/8267819.htm
http://www.mercurynews.com/mld/mercurynews/news
I don't know if they were in color or B/W however.
I think that you'll have a problem with VPN as well, due to the latency. I was using DirecPC, which was an asymmetric architecture with a phone line return. I saw an increase of about 500 msec in ping times using DirecPC over phone modem. For two-way satellite, the latency will probably be about 1 second. This kind of latency killed my VPN connectivity or at best made it unreliable. As an alternative, why don't you set up a neighborhood wireless cooperative sharing a T-1 line. See for example: http://www.magnoliaroad.net.
Nearly everyone is missing the fact that December 13, the day that Bush signed this bill, was a Saturday AND the day that the capture of Sadaam Hussein was announced. Does anyone smell a rat here, besides the one in the hole that the US (or the Kurds) discovered? What a great way to keep the news of the signing a bill that further pecks away at the Bill of Rights than to do it on a weekend and when another really big news item is released. The media appears to be complicit in publicizing only what the administration wants the public to know.