Looks like you have missed the point. Yes, Residential meters measure real power. However the question is if the clip on system measures Real Power or simply Volt-Amps. If it is the case that the clip on system just measures VA, then its measurements may or may not match well with measurement by the official power meter.
Some industrial meters certainly do have the capability of measuring both real power and VA (And a whole lot of other things as well). It depends on the electricity provider on how the bill is calculated.
It is more like running a business in a strip mall. If you don't lock the doors and put out a "closed" sign people will expect that they are allowed to come in.
The judge felt that the information should be published later instead of sooner, and I respect that decision. The last thing that we would want is a trial by media. Time and time again the media gets legal facts wrong in order to make the story more interesting. Often times if I hear about a court case, I will actually read court documents instead of relying on a news article. In any case, his decision was no different than what happens here in the USA. Judges routinely "seal" testimony for various reasons.
While patents protect an idea--say, a way to direct traffic on the Internet--copyrights only protect the expression of that idea, usually the written code that tells the computer what to do.
Unfortunately, the conception that patents protect ideas is a big problem. Patents do not cover ideas, and were never meant to covered ideas. For example you can't patent the ability to process cotton, however, you could patent a machine that processed cotton in a specific way (example: cotton gin) However, when patents are applied to software, they essentially cover an idea. This is why software patents are broken.
The only application listed that I think should be classified as an online application is the text to speech converter. The other applications are scripts/java/flash. These programs are run locally with the possibility of saving state data to a server.
Just because an application appears in a web browser does not make it an online app.
Yeah, the article seems to be very vague. However following your assumptions, the equasions:
1.8 VRMS x 0.15 IRMS x 2 = 540mW
9.144 VRMS x 0.192 IRMS = 1.755W
are simply bad math. Even though the individual measurements could very well be correct, using them in this way is intentionally misleading. I don't think that we are actually disagreeing on anything. Sorry for the cheep shot at your school:~)
Apparently they did teach you a bunch of lies at your university.
In AC applications V and I are vectors and thus require vector multiplication.
So:
Preal = abs(V)*abs(I)*Cos(angle difference between V and I)
Pimaginary = abs(V)*abs(I)*Sin(angle difference between V and I)
PF = Cos(angle difference between V and I)
The "imaginary" power is used during half of the AC cycle and then given back during the other half of the AC cycle.
Residential electricity users are only charged for Preal while very large industrial users are often charged extra for using too much Pimaginary.
BTW: I am an engineer for a power meter manufacturer.
I was looking online to purchase a book this past year. Of the several options that I found, the e-book was more expensive than purchasing a hard copy even when shipping was included.
One would expect that the e-book would be less expensive due to lower overhead casts.
'This invention is directed to data processing systems designed to facilitate commercial, financial and educational transactions between multimedia terminals such as automated sales workstations, information dispensing networks and self-service banking systems. {...) This invention also relates to financial service application processing, and interactive delivery of informative, educational and recreational audio-visual programs to the home, school or office.'
And later on:
'It will be clear that this system may be applied to many other types of customer service and sales industries.'
Slashdot Mirror
Now only if we could get slashdot to spell check... :~)
What I wan to know, is what is being changed under the hood. Everything mentiond except parts of "improved security" can run in userspace.
Not to mention that residential meters only have to be within 0.5% at "normal" temperatures and loads.
Looks like you have missed the point. Yes, Residential meters measure real power. However the question is if the clip on system measures Real Power or simply Volt-Amps. If it is the case that the clip on system just measures VA, then its measurements may or may not match well with measurement by the official power meter. Some industrial meters certainly do have the capability of measuring both real power and VA (And a whole lot of other things as well). It depends on the electricity provider on how the bill is calculated.
It is more like running a business in a strip mall. If you don't lock the doors and put out a "closed" sign people will expect that they are allowed to come in.
The judge felt that the information should be published later instead of sooner, and I respect that decision. The last thing that we would want is a trial by media. Time and time again the media gets legal facts wrong in order to make the story more interesting. Often times if I hear about a court case, I will actually read court documents instead of relying on a news article. In any case, his decision was no different than what happens here in the USA. Judges routinely "seal" testimony for various reasons.
While patents protect an idea--say, a way to direct traffic on the Internet--copyrights only protect the expression of that idea, usually the written code that tells the computer what to do.
Unfortunately, the conception that patents protect ideas is a big problem. Patents do not cover ideas, and were never meant to covered ideas. For example you can't patent the ability to process cotton, however, you could patent a machine that processed cotton in a specific way (example: cotton gin) However, when patents are applied to software, they essentially cover an idea. This is why software patents are broken.
The only application listed that I think should be classified as an online application is the text to speech converter. The other applications are scripts/java/flash. These programs are run locally with the possibility of saving state data to a server.
Just because an application appears in a web browser does not make it an online app.
1.8 VRMS x 0.15 IRMS x 2 = 540mW
9.144 VRMS x 0.192 IRMS = 1.755W
are simply bad math. Even though the individual measurements could very well be correct, using them in this way is intentionally misleading. I don't think that we are actually disagreeing on anything. Sorry for the cheep shot at your school :~)
Apparently they did teach you a bunch of lies at your university. In AC applications V and I are vectors and thus require vector multiplication.
So:
Preal = abs(V)*abs(I)*Cos(angle difference between V and I)
Pimaginary = abs(V)*abs(I)*Sin(angle difference between V and I)
PF = Cos(angle difference between V and I)
The "imaginary" power is used during half of the AC cycle and then given back during the other half of the AC cycle.
Residential electricity users are only charged for Preal while very large industrial users are often charged extra for using too much Pimaginary.
BTW: I am an engineer for a power meter manufacturer.
I was looking online to purchase a book this past year. Of the several options that I found, the e-book was more expensive than purchasing a hard copy even when shipping was included. One would expect that the e-book would be less expensive due to lower overhead casts.
'This invention is directed to data processing systems designed to facilitate commercial, financial and educational transactions between multimedia terminals such as automated sales workstations, information dispensing networks and self-service banking systems. {...) This invention also relates to financial service application processing, and interactive delivery of informative, educational and recreational audio-visual programs to the home, school or office.'
And later on: 'It will be clear that this system may be applied to many other types of customer service and sales industries.'