Viewing profile — Stwerp

I understood that it was common to post the paper to arxiv when it was in the process of being peer reviewed by a journal. The problem is the extended lag time between submission a…

Cool! I'm glad to see RFID and localization being merged together like this. I think this really shows that RFID is a much more suitable technology for this type of application tha…

There was an article the other day posted on this. It operates at 24 and 60 ghz whereas most RFID is in the UHF (900 MHz band). This radio harvests energy to run an oscillator and …

45 dBm is crazy! Do you know the FCC limitations for that frequency? For the ISM bands its +36 dBm EIRP maximum. I'm not familiar with the rules for the higher GHz frequencies.

Maybe you can describe this a bit more. The Great Seal Bug was used for wireless audio recording in the 40's, but this operated by using a microphone/cavity to modulate the load of…

Its far-field, so it couples completely differently than NFC tags. Also, NFC communicates by reflecting signals, this device communications by active transmission (according to the…

Its a like to a blog on compressive sensing pointing out that sensing (or rather sampling) is mathematically equivalent to using the identity matrix. It goes on as an introduction …

The UW research is actually using a device from enocean, it seems.

I do see your point but still, a newborn cannot support their head by themselves. Having the muscle ability to be able to hold ones head up is a fairly good prerequisite for being …

Not for any practical measurements. This would work in say an anechoic environment – save for the wall under test – but you'd end up sampling multipath constructive/destrictuve int…

>I'm hoping for precise indoor navigation, Google and Apple are currently working on that. All you'd have to do is walk around with your phone, measuring signal strength and then v…

Maybe I'm reading the article wrong, but it seems they are only describing a way to record EMG signals --- and not a way to `control' anything. I've previously worked in neural/EMG…

The article addresses that and intentionally chooses non-human subjects such as walls of graffiti. These still show his `emergent orange' effect. At first I assumed it was his aver…

While I agree with you, its worth noting that newborns do exhibit a walking reflex (that usually disappears after a few weeks). I would not completely rule out the possibility of a…

What then is the research barrier they need to cross? I'm genuinely curious. This seems more "researchy" than a lot of other items I've read (such as optimizing a planar antenna ge…

To be fair, any animals that use body language (i.e. dogs wagging tails) or sight are communicating electromagnetically (reflected light) in the same we humans communicate electrom…

>The most irritating thing was the keyboard which could not be mapped in the "standard" PC way (i.e. Ctrl Super Alt in the bottom left). That's funny. After using a mac for several…

This is actually one of the biggest reasons I am still in Mac OS. Are there any *nix builds or distributions that have this separation out of the box? I.e.: C-b, C-a, etc (emacs co…

Thank you for posting the PDF link. For the life of me, I have NO IDEA why sites still try to push hacked together PDF viewers on us when there are tools already on my system. I re…

From what I've seen of their demos (going off memory), they focus on power transfer to a single device. Their efficiency drops to near 0% when multiple devices are being powered. I…

Clicking "how does it work" and scrolling down has a link to a paper published in ubicomp 2010 detailing the CMOS chip and modulation. They seem pretty open about the technology to…

Is soul the imprecision of notes not being perfectly uniform in duration and velocity? That's what your above comment seems to imply. For instance: Consider a recording from a pian…

I agree with your sentiment, but sadly science (or rather, the doing of science) is about prestige. Put yourself in the shoes of a funding agency. If you have two grant proposals, …

I can't find details of his hack, but I am curious if his detector detects actual read events (when his device responds with its ID) or if it is just an RF power detector. Is there…

However, in the case of Borderlands at least, the app store version would limit you from playing multiplayer with anyone with the Steam version.