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Comment: Re:Current.... melt (Score 1) 227

by marcansoft (#46685951) Attached to: Nanodot-Based Smartphone Battery Recharges In 30 Seconds

It's 2Ah, so 240A.

Now, it could be that their battery runs at a higher voltage (and thus not really 2Ah, but they're using that figure as a 3.7V li-ion equivalent capabity), or that there is a power converter built into the battery pack (unlikely for a prototype, though). Still, even for a 37V battery (vs. 3.7V for a normal Li-Ion cell), we're talking 24A. That cord didn't look like 24A cord, and I highly doubt they were using a voltage higher than 37V to charge (especially not with exposed banana jacks like that).

I call the demo highly dubious if not an outright fake/mock.

Comment: Mozilla is not a public company (Score 1) 562

by asa (#46671835) Attached to: Was Eich a Threat To Mozilla's $1B Google "Trust Fund"?

Mozilla is not a public company. It is a 501C3 tax exempt non profit and its wholly owned taxable subsidiary. Our stockholders are the people of the world. Our decisions are based on maximizing the value of the Internet for the benefit of everyone everywhere, especially those who lack representation from the giant institutional multinational publicly traded corporations like Google, Apple, Facebook, and Microsoft.

Comment: Re:Hey (Score 5, Interesting) 80

by marcansoft (#46596519) Attached to: eBay Japan Passwords Revealed As Username+123456

Sorry for the threadjack, but this is yet another case of horrible security reporting.

From watching the video, what it seems happened here was that eBay chose phpBB for their community forum, but did not integrate its authentication system directly with eBay's on the server side. Instead, the site was set-up as a standalone system, and whoever implemented the integration had the bright idea of hardcoding the forum password for everyone as username+123456, and then just having the eBay login page issue a hidden POST request behind the scenes to authenticate users to the community forum section.

Thus, this allows anyone to trivially impersonate anyone else on the forum. It shouldn't have anything to do with the rest of the site, though. Nor does this have anything to do with initial passwords, salts, or any of the other terms that have been thrown around.

A case of absolutely retarded login integration for the community site, but not something that would allow people to take over others' main eBay account. What this says about the people running eBay is another matter entirely...

Comment: Re:Dumb (Score 3, Informative) 358

by marcansoft (#46488967) Attached to: EU Votes For Universal Phone Charger

This is incorrect. There is no bidirectional negotiation between chargers and devices, nor are there any magic extra pins (at least for pretty much all Android and Apple products - dunno about Zune).

What there is is one USB charging standard, that basically says one thing and one thing only (that matters): if the data pins are shorted together (but otherwise not connected to anything), then the port is a Dedicated Charging Port. A DCP must meet certain voltage/current curve ranges and may be engineered to supply anywhere from 500mA to 1.5A (or more), with the voltage dropping as the device exceeds the charger's maximum. Devices are simply supposed to regulate current draw upwards until the voltage drops below a threshold, indicating the charger's capability. No digital negotiation takes place. Devices are limited to 1.5A charging current, which is quite typical for modern devices (and significantly better than the 500mA of a non-charging port).

There is a newer USB Power Delivery specification that is much more recent, supports higher powers, probably uses more complex negotiation (I haven't read it), and nothing implements it yet.

Then there's what Apple does - they have an incompatible implementation that uses resistors on the data pins in the charger to signal its current capability. Different resulting voltages mean different current levels. This is completely incompatible with the USB charging standard. Recent Apple devices (since the iPhone 3G or so) do support DCP chargers (to some extent - some charge more slowly, and I don't know about larger iPads?), but non-Apple devices will only charge at 500mA or worse from Apple chargers.

Comment: We're fixing this (Score 4, Informative) 333

by asa (#46338251) Attached to: How Mobile Apps Are Reinventing the Worst of the Software Industry

Firefox OS is trying to fix much of this.
https://wiki.mozilla.org/Firef...
https://developer.mozilla.org/...
The Web is the most successful platform of all time and we're leading the pack on bringing a the Web platform to mobile in a way that's integrated rather than fractured like the existing app store models.

Comment: Re:Faster is not necessarily better: Quality matte (Score 5, Informative) 101

by marcansoft (#46315575) Attached to: FFmpeg's VP9 Decoder Faster Than Google's

This is false. Decoding for modern video formats is strictly defined, and all decoders must produce bit-perfect output. You can add as many filters as you want after that, but that's a postprocessing step in the video player and has nothing to do with the decoder. Things like in-loop filters are strictly defined as part of the decoding process and must be there for the decoder to be considered correct.

Comment: Re:Why does Wikimedia hate batteries? (Score 1) 235

by marcansoft (#46259171) Attached to: FLOSS Codecs Emerge Victorious In Wikimedia Vote

Nope, they just crash, lag, or play it with severe artifacts (the latter happens with some hardware codecs and 10bit files).

Basically no modern video codecs are designed to gracefully degrade given limited decoder features, because they rely on bit-perfect output to be used as a reference for future frames. Any error accumulates in the decoding loop and becomes significant artifacting until the next I frame.

+ - Ask Slashdot: What's there to like about the BETA?-> 7

Submitted by Narnie
Narnie (1349029) writes "I come to /. not for the nearly interesting pseudo-tech articles, but for the lively, self-moderated discussion. Today I'm bit surprised to see every discussion summarized to fuckbeta. Popping up all over the place there's discussions about beta and even alternatives being revived and created. As I tend not to RTFA, I haven't sampled the beta myself. So, I ask you guys, what's there to like about the BETA and what's there to loath?"
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