Student Invention May Significantly Extend Mobile Device Battery Life
 

http://hardware.slashdot.org/article.../12/19/2338237

Anyone think this is really going to fly? If it does, it's got quite a potential to help mobile devices like the NIT.

Re: Student Invention May Significantly Extend Mobile Device Battery Life
 

Not really. If I read correctly the method reduces the power consumed by the antenna by the order of 12, not the whole device.

On a cell phone that may be a sizable chunk of the total power consumed, but on a WiFi/BT only device like our tablets... maybe not so much.

Edit: ... BTW, I think it will fly but other factors like RF & magnetic interference may have to be overcome first.

Re: Student Invention May Significantly Extend Mobile Device Battery Life
 

Hmmm i wonder what happens when you connect LOTS of components like that. I'm not sure that you could build a whole device with that kind of technology. So I'm with YoDude on that matter...

Re: Student Invention May Significantly Extend Mobile Device Battery Life
 

wifi can eat a lot of juice, if allowed to...

Re: Student Invention May Significantly Extend Mobile Device Battery Life
 

I read his dissertation. The idea he has is to use a wireless connection internally in the device as a lower resistance "wire" than the copper/hybrid alloy wire that is used currently. (The N800's wire to the antenna is several tenths of an ohm) It is an interesting idea that will take at least 3 to 5 years until it is seen in devices. It could also shrink the size of devices.

Re: Student Invention May Significantly Extend Mobile Device Battery Life
 

If applied correct it doesn't. With correct material and aiming one can extend the range. I've seen stations like this together with other embedded hardware applied in Africa on solar power.

Re: Student Invention May Significantly Extend Mobile Device Battery Life
 

I love the /. comments... some people analyzing the thesis via other comments rather than the paper itself. :D

Re: Student Invention May Significantly Extend Mobile Device Battery Life
 

thats slashdot for you, dont bother reading the article, just comment on the summary...

Re: Student Invention May Significantly Extend Mobile Device Battery Life
 

Yes, but the article's just been /.ed; odds are it's already inaccessible, so why try reading it?

Re: Student Invention May Significantly Extend Mobile Device Battery Life
 

is there not some kind of mirroring service built into slashdot these days?

Re: Student Invention May Significantly Extend Mobile Device Battery Life
 

Again, not the juice drawn by the radio itself but the power used by the antenna...

A cell phones transmit power is between 3/4 to a full watt. WiFi typically is 100mw or less and I believe BT is as low as 1 milliwatt.

So... I'm thinkin' our tablets consume a little more than about 1/10th what a cell phone consumes while transmitting.

Re: Student Invention May Significantly Extend Mobile Device Battery Life
 

Try CoralCDN. Mirrordot, visit later, look for mirrors in replies, or avoid the site like the plague.

Re: Student Invention May Significantly Extend Mobile Device Battery Life
 

Upload? Who uploads a lot on a device like this. My cell phone, with same battery as N810, and in use stays on for 2 days. If my N810 can do that with that battery I'd jump high in the air. It can't.

Re: Student Invention May Significantly Extend Mobile Device Battery Life
 

Ahem:

"Slashdot does not mirror the sites it links to on its own servers, nor does it endorse a third party solution. Mirroring of content may constitute a breach of copyright and, in many cases, cause ad revenue to be lost for the targeted site. The questionable legality of the practice is one of the primary reasons that Slashdot has not implemented mirroring."

http://en.wikipedia.org/wiki/Slashdotted

Re: Student Invention May Significantly Extend Mobile Device Battery Life
 

That's what I'm saying...

A closer read of the kids paper (if I can find a link I will post it) shows that the savings would only come from the power consumed by the dang antenna.

Perhaps this is why it has not been picked up by more digs or whatnot. Somebody must have finally read the thing. :)

Re: Student Invention May Significantly Extend Mobile Device Battery Life
 

Slashdot sucks for science partly because their editors aren't able to summarize well, and because the readership is not provoked into reading further into the subject. Try http://www.physorg.com and their (well defined) sub-categories. Got RSS too.

The quality of the posts is low as well. There used to be +5 posts which were informative, containing links and such. Not anymore. Its more chit-chat now.

While mirroring is copyright infringement, summarizing is not and caching is note either. At least not in my jurisdiction. Thats also why the local mafiaa doesn't sue owners of Usenet servers.

I wish I had that website about the American living in Africa setting up embedded WiFi APs. It was a very interesting read, and he used open source for this purpose as well.