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Wireless Power Group Sees Standard Within 6 Months

alphadogg writes "The group developing a standard for wireless charging expects to complete its first specification within six months, opening the door for makers of cell phones, digital cameras and other devices to bring compatible products to market. Wireless charging lets consumers place gadgets on a mat that plugs into a wall outlet, and have the devices recharge automatically without needing to plug in each one. Apart from the gee-whiz factor, it's supposed to make life more convenient by letting people walk into their home or office, toss their gadgets onto a mat to recharge and forget about them."

152 comments

  1. opportunities by xyph0r · · Score: 0

    This opens up a wide range of opportunities.... much like microwaves. See what happens when you put other shit on the mat.
    Like a lump of really conductive metal.
    Or a baby

    --
    SQL programmer goes to a bar. Walks up to two tables and says 'Excuse me, may I join you?'.
    1. Re:opportunities by PPH · · Score: 2, Insightful

      Well, unless the baby implements the correct handshaking protocol with the controller there shouldn't be a problem. And as for metal, I'm assuming that the standard (or decent implementations of it) will deal with what to do in the event the mat detects that its deriving an unknown load (shorted loop, etc.).

      --
      Have gnu, will travel.
    2. Re:opportunities by MichaelSmith · · Score: 3, Informative

      You could put the baby beside a phone or camera which requests power, but even then its only five watts which is not going to do any damage.

    3. Re:opportunities by negRo_slim · · Score: 1

      Depending on the circumstances 5 watts is more than enough to kill someone.

      --
      On the Oregon Cost born and raised, On the beach is where I spent most of my days
    4. Re:opportunities by MichaelSmith · · Score: 1

      Yeah but that ignores inductive coupling. I suppose there might be warnings for people with pacemakers around these things but they already get exposed to that much power from AC fields around big transformers, etc.

    5. Re:opportunities by arielCo · · Score: 3, Funny

      You could put the baby beside a phone or camera

      No damage to the baby, but that phone/camera is toast as soon as you turn your head :)

      --
      This post contains no rudeness or derision of any kind. All arguments are friendly. Terms and exclusions may apply.
    6. Re:opportunities by JBdH · · Score: 1

      How is 5 volts able to kill someone. I read the article from your link. And it states that 30V is the threshold over which somebody could get killed in very unfavorable conditions, among other the current would have to be AC 50/60 Hz. I expect this wireless mat to deliver 5 W DC.

    7. Re:opportunities by icebike · · Score: 2, Funny

      Do babies come with Induction coils?

      Quote TFA:
      "The standard is for a technology called magnetic induction, in which power is transferred between metal coils built into the device and the charging mat when they are placed close to each other. "

      Its just a magnetic field folks.

      --
      Sig Battery depleted. Reverting to safe mode.
    8. Re:opportunities by icebike · · Score: 1

      LOL, and true.

      --
      Sig Battery depleted. Reverting to safe mode.
    9. Re:opportunities by MichaelSmith · · Score: 3, Insightful

      Do babies come with Induction coils?

      A few.

      A guy I worked with his son had broken the antenna on his implant in the playground at school. They could get it working by squeezing his head in just the right way to close the break in the antenna wire.

    10. Re:opportunities by Enleth · · Score: 1

      30V through skin, 5V or probably even less otherwise. There was a moron (AFAIR, a soldier in training) who killed himself using a 9V battery-powered ohmmeter by sticking the pointed probes into his thumbs, through the skin. You see, blood is an electrolyte, it conducts electricity quite nicely, and the shortest path from one hand to the other using blood as a conductor is through the heart...

      --
      This is Slashdot. Common sense is futile. You will be modded down.
    11. Re:opportunities by dontmakemethink · · Score: 1

      5W internally can kill, but the likelihood of accidentally generating 5W internally from a 5W induction mat is below negligible. Keep in mind they use much more powerful induction mats (aka induction stoves) at chain restaurants like Boston Pizza, where the intelligence of the cooks can rival infants.

      --

      War as we knew it was obsolete
      Nothing could beat complete denial
      - Emily Haines
    12. Re:opportunities by Hognoxious · · Score: 1

      Right, because everybody I know spends all day in an electricity substation.

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
    13. Re:opportunities by KIRBY1986 · · Score: 0

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    14. Re:opportunities by fluffy99 · · Score: 1

      This is an urban legend, btw. Usually it's a Navy sailor in the tale.

    15. Re:opportunities by rdnetto · · Score: 1

      The same kind of magnetic field that is also generated by power lines, and would be the cause of any problems associated with them, assuming said problems exist.
      Static magnetic fields are fine (the earth has one naturally), but changing ones could be dangerous due to the induction, which is the exact reason they're being used here (to induce a current).
      There's been some research done on power lines, although I couldn't really say whether or not the fields from a wireless charging device. On one hand you have a lower current (and therefore weaker field), but on the other you are much closer to it (field strength is inversely proportional to the square of the radius).

      --
      Most human behaviour can be explained in terms of identity.
    16. Re:opportunities by sbbshoe092 · · Score: 0

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    17. Re:opportunities by biryokumaru · · Score: 1

      I wouldn't put it past us Navy folk. A guy in my A School class tried to megger between his nipples.

      --
      When you're afraid to download music illegally in your own home, then the terrorists have won!
    18. Re:opportunities by fluffy99 · · Score: 1

      I wouldn't put it past us Navy folk. A guy in my A School class tried to megger between his nipples.

      A megger does have much more voltage than a simple ohmmeter. Most units I've seen had pretty low currents, but you could still give yourself a nice shock.

    19. Re:opportunities by Ethanol-fueled · · Score: 1

      Last I checked, 5 milliwatts per square centimeter was the maxiumum acceptable RF exposure limit.

    20. Re:opportunities by Anonymous Coward · · Score: 0

      Really? I'd have thought the infants would've been smarter...

  2. Saving power by MichaelSmith · · Score: 2, Interesting

    Charging mats will recognize when a device is fully charged and then consume a trickle of energy in standby mode

    Okay thats interesting. We all use wireless (inductive) power in other places and while, yeah, the cheap plugpack segment is mostly switchmode now I wonder if there are places where the efficency of transformers could be improved with a digital back channel which says send me this much power.

    1. Re:Saving power by Gordonjcp · · Score: 2, Interesting

      while, yeah, the cheap plugpack segment is mostly switchmode now I wonder if there are places where the efficency of transformers could be improved

      How about they improve the power supplies first? It's bad enough that there are all these cheap crappy switch-mode power supplies splattering harmonics of their switching frequency up and down the RF spectrum, but now they want to design them to radiate *more*?

    2. Re:Saving power by rdnetto · · Score: 1

      Charging mats will recognize when a device is fully charged and then consume a trickle of energy in standby mode

      Okay thats interesting. We all use wireless (inductive) power in other places and while, yeah, the cheap plugpack segment is mostly switchmode now I wonder if there are places where the efficency of transformers could be improved with a digital back channel which says send me this much power.

      Isn't that how transformers work - the power consumed is directly proportional to the power provided? It seems to me that a wireless system would be like a transformer, except with an air gap instead of a soft iron core.

      --
      Most human behaviour can be explained in terms of identity.
    3. Re:Saving power by Anonymous Coward · · Score: 0

      > We all use wireless (inductive) power in other places

      Wrong. I don't.

  3. Correction by schmidt349 · · Score: 1

    toss their gadgets onto a mat to recharge and forget about them

    Great, another place where my phone can be stolen.

    1. Re:Correction by MichaelSmith · · Score: 1

      Its just where you normally charge the phone, except you don't have to plug it in.

    2. Re:Correction by Hadlock · · Score: 2

      Number of times phone stolen from bedside table: 0
      Number of times phone stolen from office desk: 0

      --
      moox. for a new generation.
    3. Re:Correction by PIBM · · Score: 1

      And what's the number of times your phone has been stolen at all ?

    4. Re:Correction by Hadlock · · Score: 2, Interesting

      Times cell phone has been stolen at all: 0
       
      Seriously, it lives in your pocket, or on your belt. How many times have you had your wallet stolen? Maybe you have an issue with keeping track of your personal belongings. I've never heard of any of my friends (mostly BB and iPhone users, fairly desirable phones, unlockable and use SIM cards) with stolen phones. Usually it's death by toilet, sidewalk or frustration (wall).

      --
      moox. for a new generation.
    5. Re:Correction by Datamonstar · · Score: 1

      So just because it's never happened to you or someone you know then it either doesn't happen at all or it's the victim's fault? I've never had any home I live in broken into, either. Does that mean burglars only prey on people who don't lock up their homes? This discussion shouldn't even have gotten this far off topic.

      And yes, I do think that if public charging stations become popular (it really doesn't seem that far fetched to me) then phones will be a bit more susceptible to theft.

      --
      The eternal struggle of good vs. evil begins within one's self.
    6. Re:Correction by petermgreen · · Score: 1

      Great, another place where my phone can be stolen.
      I don't see how putting it on a charge mat on your desk is any worse from a theft point of view than putting it on your desk and plugging in a charge cable.

      --
      note: i'm known as plugwash most places but i screwd up registering that here somehow in the past and now can't register
  4. Not going to happen... by Darkness404 · · Score: 4, Insightful

    We've tried doing this with physical plugs to no avail, even if one half conforms to a standard there will always be a few very popular device manufacturers -cough- Apple -cough- who will break the trend and inconvenience a large amount of users.

    --
    Taxation is legalized theft, no more, no less.
    1. Re:Not going to happen... by MichaelSmith · · Score: 1

      -cough- USB -cough-

    2. Re:Not going to happen... by xyph0r · · Score: 0

      Furthermore, if it's just a mat with no physical contact needed between the erm... contacts, slight differences in standards could cause major, battery-exploding issues.

      --
      SQL programmer goes to a bar. Walks up to two tables and says 'Excuse me, may I join you?'.
    3. Re:Not going to happen... by maxume · · Score: 1

      Apple uses cables that happen to have a USB plug on one side.

      --
      Nerd rage is the funniest rage.
    4. Re:Not going to happen... by MichaelSmith · · Score: 1

      Yeah different physical interfaces but that can't be an issue in this case.

    5. Re:Not going to happen... by Anonymous Coward · · Score: 0

      -cough- Bluetooth -cough-

    6. Re:Not going to happen... by thetoadwarrior · · Score: 3, Informative

      There's USB and in the EU manufacturers have agreed to a universal charger: http://www.guardian.co.uk/money/2009/jun/30/universal-mobile-phone-charger

    7. Re:Not going to happen... by noidentity · · Score: 3, Funny

      No problem! We'll just have an adaptor/receiver that you plug into your old adaptor. This will receive wireless power, convert it back to 120/240V AC, then power your old wired adaptor.

    8. Re:Not going to happen... by Anonymous Coward · · Score: 0

      still have to have a special cable, doesnt matter that the source is originally via usb

    9. Re:Not going to happen... by podwich · · Score: 1

      So let me get this straight. We'll plug the adapter for the wireless power mat into the wall, then convert to wireless power, then convert back into wired power, then plug the old adapter into the wireless to wired power adapter, then plug the (phone, computer, whatever) into the mess? Hmm. That's Rube Goldbergish.

    10. Re:Not going to happen... by rdnetto · · Score: 1

      No problem! We'll just have an adaptor/receiver that you plug into your old adaptor. This will receive wireless power, convert it back to 120/240V AC, then power your old wired adaptor.

      You can't plug something into a wireless power source, it's wireless.

      --
      Most human behaviour can be explained in terms of identity.
    11. Re:Not going to happen... by Anonymous Coward · · Score: 0

      You should see someone about that cough.

    12. Re:Not going to happen... by publiclurker · · Score: 2, Funny

      Don't worry, they'll also sell and adapter for that.

    13. Re:Not going to happen... by troll8901 · · Score: 1

      How the heck do you guys pronounce complex words like "Yew Ess Bee" so clearly between coughs?

    14. Re:Not going to happen... by selven · · Score: 1

      -cough- you can say as much as you want between two coughs - they could have even occurred minutes or hours apart -cough-

    15. Re:Not going to happen... by noidentity · · Score: 1

      As opposed to plugging a power adaptor into the wall, which powers an inductive mat that emits an alternating electromagnetic field, some of which is picked up by a phone's matching coil a couple of feet away, which converts it back to power, which is then converted into a voltage to charge the battery of the phone. As opposed to plugging a power adaptor into the wall, plugging it into the phone, and charging the battery.

  5. Copy of the article by Anonymous Coward · · Score: 0

    The group developing a standard for wireless charging expects to complete its first specification within six months, opening
    the door for makers of cell phones, digital cameras and other devices to bring compatible products to market.

    Wireless charging lets consumers place gadgets on a mat that plugs into a wall outlet, and have the devices recharge automatically
    without needing to plug in each one. Apart from the gee-whiz factor, it's supposed to make life more convenient by letting
    people walk into their home or office, toss their gadgets onto a mat to recharge and forget about them.

    There are still questions about when standardized products will come to market and how they'll be received, but the Wireless
    Power Consortium aims to finish its first standard before the middle of the year, said Menno Treffers, a Philips executive
    who is chairman of the consortium. If it's not ready by then, "I will eat my hat," he told a group of vendors at the Consumer
    Electronics Show in Las Vegas on Friday.

    The consortium has 27 members including Nokia, Research In Motion, Philips, Sanyo, Samsung Electronics, Energizer and Hewlett-Packard, as well as component
    and wireless-power technology companies such as Texas Instruments and Fulton Innovation.

    The standard is for a technology called magnetic induction, in which power is transferred between metal coils built into the
    device and the charging mat when they are placed close to each other. The standard is for delivering up to 5 watts of power,
    which covers most smaller devices. A further standard will be needed for laptops and larger products. "We want to start on
    that as soon as possible, but for now we don't want to dilute our engineering efforts," Treffers said.

    Consumers will know which products are compliant because they'll carry the consortium's "Qi" logo (pronounced "chee" after the Chinese for life force). Initial products are likely to come bundled with a small charging mat
    of their own, but if the technology takes off other companies are likely to sell mats that can charge multiple devices at
    once.

    Several wireless power products are already in the market, including a Nintendo accessory from Energizer for recharging Wii
    game controllers, a Dell Latitude Z business laptop that can be recharged by placing it on a stand, and products from Powermat
    for charging phones and other devices. Bosch has shown power tools that are recharged by laying them on a workshelf.

    But a standard is seen as important to wider adoption because it ensures that devices will interoperate. Until it arrives,
    some vendors won't release any further products. "We're done for now until the standard is complete," said Serge Traylor,
    brand manager for charging and rechargeable systems with Energizer. When the standard is done, Energizer will release a mat
    for charging as many as two devices, for about $100, and charging sleeves for iPhone and Blackberry devices, for $30 to $40,
    he said.

    The standardization effort faces several challenges, though. Powermat, one of the leading wireless power companies, has not
    joined the consortium and is selling products using its own technology, which Treffers acknowledged could create confusion
    in the market.

    Some of the most popular gadget makers also are not on board, including Apple. "I have not heard from them," Treffers said.

    He admitted also that the public may have concer

  6. Qi? WTF by Anonymous Coward · · Score: 0

    From TFA:
    "Consumers will know which products are compliant because they'll carry the consortium's "Qi" logo (pronounced "chee" after the Chinese for life force). Initial products are likely to come bundled with a small charging mat of their own, but if the technology takes off other companies are likely to sell mats that can charge multiple devices at once."

    Why do they have to keep using 2 letter acronyms for everything? These days two people discussing technology sound like a couple of idiots:
    Do you have a Qi Wii?
    No, but I got myself a Qi WiFi WiDi.

    1. Re:Qi? WTF by jc42 · · Score: 1

      Consumers will know which products are compliant because they'll carry the consortium's "Qi" logo (pronounced "chee" after the Chinese for life force).

      Or maybe it'll be the char (U+6C7D) pronounced "qi4", meaning "vapor, gas, steam". ;-)

      One online dictionary has 106 Chinese characters pronounced "qi" in Mandarin, with all of the possible tones. Their logo is just a stylized form of the two letters "qi", it could mean any of them. So we could make a lot of jokes about the true meaning of their use of this Chinese syllable.

      --
      Those who do study history are doomed to stand helplessly by while everyone else repeats it.
    2. Re:Qi? WTF by HTH+NE1 · · Score: 1

      Why do they have to keep using 2 letter acronyms for everything?

      How about you learn what an acronym is. First and foremost it is an abbreviation. If you can't expand it, it's not an abbreviation, and thus not a pronounceable abbreviation: it's just a short trademark.

      --
      Oh, say does that Star-Spangled Banner entwine / The myrtle of Venus with Bacchus's vine?
    3. Re:Qi? WTF by amRadioHed · · Score: 1

      The character for "vapor, gas, steam" is the character they are referring to. The life force used in traditional Chinese medicine is another meaning for that same character.

      --
      We hope your rules and wisdom choke you / Now we are one in everlasting peace
    4. Re:Qi? WTF by jc42 · · Score: 1

      Hmmm ... I'd think that most techies would immediately think "vaporware".

      In English, this doesn't work too well as a metaphor for "life force" (whatever that may be). We get our life force by ingesting "lesser" life forms that supply us with the carbohydrates, amino acids, plus the trace minerals and vitamins that we need to maintain our vitality. We do need oxygen, but we don't usually call it "vapor".

      Maybe they really meant the logo to refer to vaporware. Ya think?

      Actually, I was assuming they meant the U+6C14 character, which is the right (phonetic) component of the U+6C7D char that I mentioned. It's also qi4, but it has a wider range of meanings. Not surprising as it's standard radical #84, and they're usually vague, general things. "Vital breath" is among the basic meanings, along with "smell", "weather", and "to get/make angry".

      There are also qi2 chars that mean "water chestnut", "green frog" and "piebald horse"; I was sorta hoping that they meant one of those. ;-)

      There's a lot of silliness in the attempts to borrow Chinese words without actually learning anything about how the language works. And Mandarin has so many homonyms to have fun with, especially if you drop the tones ...

      --
      Those who do study history are doomed to stand helplessly by while everyone else repeats it.
    5. Re:Qi? WTF by amRadioHed · · Score: 1

      Yeah, they would have to be using U+6C14. I guess that character doesn't really mean steam or vapor. I knew it meant air, and assumed it meant those also. Duibuqi.

      --
      We hope your rules and wisdom choke you / Now we are one in everlasting peace
  7. Strange limitation by cerberusss · · Score: 3, Informative

    The article mentions "The standard is for delivering up to 5 watts of power, which covers most smaller devices. "

    This sounds like a pretty low limit to me. My iPhone charger delivers 5 watts and it takes hours before it's charged. Now imagine you buy one of those matts and your family or colleagues throw their phones on the matt as well. At the end of the day, they might not even be charged!

    --
    8 of 13 people found this answer helpful. Did you?
    1. Re:Strange limitation by MichaelSmith · · Score: 1

      If you just keep the phone on the mat it will rarely take hours to charge.

    2. Re:Strange limitation by KazW · · Score: 3, Informative

      The article mentions "The standard is for delivering up to 5 watts of power, which covers most smaller devices. "

      This sounds like a pretty low limit to me. My iPhone charger delivers 5 watts and it takes hours before it's charged. Now imagine you buy one of those matts and your family or colleagues throw their phones on the matt as well. At the end of the day, they might not even be charged!

      I'm not sure how you missed this sentence, but this makes it pretty clear to me.

      Initial products are likely to come bundled with a small charging mat of their own, but if the technology takes off other companies are likely to sell mats that can charge multiple devices at once.

      --
      Geeks don't grock information, they grep it.
    3. Re:Strange limitation by lobiusmoop · · Score: 1

      The trouble is that these devices use exactly the same principles as radio transmitters do - if you increase the power then you start screwing up radio broadcasts at whatever frequency it is you are using to transmit the power - not good.

      --
      "I bless every day that I continue to live, for every day is pure profit."
    4. Re:Strange limitation by Hognoxious · · Score: 1

      How so? Is 5 watts through the mat somehow more than 5 watts through a cable?

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
    5. Re:Strange limitation by MichaelSmith · · Score: 1

      Because it will charge whenever you put it down, as opposed to whenever you plug it in.

    6. Re:Strange limitation by Anonymous Coward · · Score: 0

      What if we turn the power setting to 11?

    7. Re:Strange limitation by Hognoxious · · Score: 1

      I think cerberusss is plugging it in, because otherwise it wouldn't take hours - it owuld take infinity.

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
    8. Re:Strange limitation by fluffy99 · · Score: 1

      My iPhone charger delivers 5 watts and it takes hours before it's charged.

      While the charger may be rated at 5 watts output, the phone battery isn't charging at a full 5 watts if its taking hours. The battery in the iPhone is rated at 5.7 watt-hours (3.7 volts, 1500 mAH). Even if we estimate the charging process at only 75% efficient, that should charge it from zero to full in 1.5 hours. Here is a picture of a replacement Apple 3G battery showing the specs. http://cdn.overstock.com/images/products/28/688/L12455938.jpg

      Still, I agree that 5-watts is a little low for some devices. I would have preferred they aimed to match the USB 3.0 spec of 9 watts.

    9. Re:Strange limitation by Anonymous Coward · · Score: 0

      *facepalm*

      The point here is that if you put the phone down on the mat whenever you're not using it or walking around, it will keep closer to full charge at all times. As opposed to plug it in every time your at your desk, because few people will do that.

  8. Pointless by Samy+Merchi · · Score: 4, Insightful

    I don't really see the point. As long as you have to put the device in a specific location anyway, I don't see that it's much of an improvement over having to connect it with your charger. You have to connect it with a location just the same, with this new tech, just the plug is different (a pad vs a plug).

    Wake me when you have a tech that charges my mobile from the moment I step in my home door and leave my mobile in my jacket pocket hanging in the foyer.

    Until that use case can be satisfied, I think this is just the same-old, same-old.

    1. Re:Pointless by MichaelSmith · · Score: 1

      My wife and I tend to drop our phones in standard places in the house, then plug them in at night. This way the phones will charge when they are put down.

    2. Re:Pointless by Phybersyk0 · · Score: 1

      Have you seriously gotten so lazy that you can't even SET SOMETHING DOWN?

    3. Re:Pointless by TheGratefulNet · · Score: 4, Informative

      as someone who builds (diy) and also fixes commercial gear, let me splain one thing to you.

      the jacks are pure shit and they fail in very short times if they see any use at all. most plugs have minimal strain relief and there is NONE at the socket side of things.

      if you go socketless, you have one less thing on the (mp3, phone, etc) to break on its main board.

      of course, you still have the line-out (etc) to worry about breaking, but repeated chargings on cheap connectors (they ALl are cheap chinese connectors) isn't ever a good thing. removing them is a good thing.

      --

      --
      "It is now safe to switch off your computer."
    4. Re:Pointless by Ragzouken · · Score: 1

      The plug is absent, saving you the 'plug in' step that comes before the 'place on surface' step.

    5. Re:Pointless by Anonymous Coward · · Score: 0

      Amazing new technology! ;-)
      My cordless toothbrushes have been using this type of charging for at least 5 years. I'm glad to see this "new" "invention" finally come to market in something other than toothbrushes. I think it was Palm who invented it last year? That said, it is faster and more convenient than having to connect a cord, plus the connectors don't break.

    6. Re:Pointless by Samy+Merchi · · Score: 2, Insightful

      It's not about laziness. If it was about laziness, I'd jump on the new tech because it saves me the "arduous" step of *plugging in* (gasp). Instead I'm planning on staying with the far more demanding step of actually plugging in.

      It's about forgetfulness. As I grow older and more senile, I plain and simple don't *remember* to put my devices at their designated charging locations every single night. If there was a tech that charged my devices no matter where I left them inside the confines of my house, that would something that would produce a useful value add for me.

      Eliminating the plugging in phase does not produce a useful value add because I'm not so lazy that plugging in is some huge obstacle.

    7. Re:Pointless by EvolutionsPeak · · Score: 1

      If it prevents you from putting certain other things in that spot, it may very well be even worse than a charger plug.

    8. Re:Pointless by KazW · · Score: 1

      I don't really see the point. As long as you have to put the device in a specific location anyway, I don't see that it's much of an improvement over having to connect it with your charger. You have to connect it with a location just the same, with this new tech, just the plug is different (a pad vs a plug).

      Wake me when you have a tech that charges my mobile from the moment I step in my home door and leave my mobile in my jacket pocket hanging in the foyer.

      Until that use case can be satisfied, I think this is just the same-old, same-old.

      A couple things...

      1. 1) Why would you leave your phone in your jacket pocket anyways? The ringer would be muffled and you'd probably miss calls.
      2. 2) There have been many times I set my phone down by the charger and either forgot to plug it in or I didn't have the plug in all the way, this would eliminate those issues.
      3. 3) This would allow me to charge multiple devices with the same mat, or just have multiple chargers in different locations in my house... I could just get multiple USB port chargers, but then I have to move the cables around and in doing so I might misplace a cable.
      4. 4) When I spend the night out somewhere, I typically take the USB cable for my phone and borrow an unused USB port, most of the time it's when I go out drinking, so I'm always paranoid about losing my USB cable. With this system I could just use my friend's charging mat, no lost cable worries.
      5. 5) Some form of security would have to be implemented in the house-wide system you mention, so someone couldn't setup up a power siphon outside your house, currently no wireless power systems I've heard of can implement this. The short range of this mat system circumvents any need for security.

      All in all, this could turn out to be a great universal charging system, and I hope it works out, because this would really simplify my device charging and cable management.

      --
      Geeks don't grock information, they grep it.
    9. Re:Pointless by Anonymous Coward · · Score: 0

      I wonder why almost nobody else noticed this? Or maybe they buy new products before the connectors fail. As one who's had two USB connectors fail from overuse, I think this is potentially good for devices that don't need to transmit data.

    10. Re:Pointless by HTH+NE1 · · Score: 2

      I don't really see the point.

      Instead of twelve wires leading to twelve plugs going to a powerstrip or two before reaching the wall for a dozen devices, you have one wire going to the wall and the devices on a flat surface which may if you like be cluttered with other non-charging devices. Or you build it into your countertop or other piece of furniture so you don't even see that wire.

      No, the real problem is that these devices needing charging are mobile, and continue to be mobile when used in the home. People want to keep their iPods with them to listen to their playlists while walking room-to-room and their phones so they can answer them instead of forgetting them in one room while they're in another. You'd need a pad in easy reach in every room where someone spends any amount of time motionless: coffee table, kitchen counter, bedside table, bathroom counter, back of the toilet....

      A desk "blotter" that also charges the wireless keyboard and mouse, now that's useful!

      --
      Oh, say does that Star-Spangled Banner entwine / The myrtle of Venus with Bacchus's vine?
    11. Re:Pointless by Anonymous Coward · · Score: 0

      At least you won't need a gazillion different chargers anymore for every gadget around the house.

      But alas. That's just wishful thinking. Of course an Apple devices will only work with Apple mats etc. Hoping otherwise is just naive.

    12. Re:Pointless by MikeFM · · Score: 1

      You must not go through the plug/unplug ritual much. It's a pain, cords tend to get lost, you don't have enough cords for every location, and the connectors wear out. Sure they are working on standards for wireless power that don't require a specific location but why not take advantage of what works for now? I for one am eagerly awaiting support from all the handheld devices I use frequently. I'd love to have a desk where the entire surface can charge devices and a laptop that can charge that way. I've considered getting one of the cases for my iPod Touch that charges it this way but I'd rather see a standard before I spend my money.

      --
      At what price learning? At what cost wisdom? The price is a man's peace of mind, and the cost is his life.
    13. Re:Pointless by DavidD_CA · · Score: 1

      This is better than having a million different plugs/adaptors/dongles.

      I'd love to see a car outfitted with a special version of this, too.

      Hotel rooms can have one, on the night stand, as a nice feature for their guests.

      Any office desk could definitely benefit from one. Less wiring clutter. Only downside is no USB sync (yet).

      There are plenty of uses. They're all moot unless there is an industry-wide standard, though.

      --
      -David
    14. Re:Pointless by amRadioHed · · Score: 1

      Encouraging you to put your phone in the same place every night is a feature, especially for you if you are forgetful. If you could leave your phone anywhere in your house to charge, what are the odds of you remembering where you put it?

      --
      We hope your rules and wisdom choke you / Now we are one in everlasting peace
    15. Re:Pointless by Kral_Blbec · · Score: 1

      or you could get a butler

    16. Re:Pointless by Pedrito · · Score: 1

      I don't really see the point. As long as you have to put the device in a specific location anyway, I don't see that it's much of an improvement over having to connect it with your charger. You have to connect it with a location just the same, with this new tech, just the plug is different (a pad vs a plug).

      My wife and I have several devices (phones, MP3 players, etc) that we charge in one location and the rats nest of wires and connectors is a nightmare. Personally, I find the idea of dropping my devices on a mat and not having to figure out which connector goes with my phone or my MP3 player or my camera, quite appealing. Not to mention, I don't have to have 20 adapters in the wall, which is another bonus. I can see the mats appealing to a lot of people.

    17. Re:Pointless by Anonymous Coward · · Score: 0

      How's this for a point:
      Mount the pad under your coat hooks as a wall covering -- any object contained in anything hung there charges while it sits.

      It could also be stuck in desk drawers or on desktops. The trick is to make the space large enough that you don't have to be accurate in placement. I remember a couple of years ago when this tech was first announced, the problem was that the pad was only slightly larger than a cell phone, which makes these things more like coasters than desk covers. With the original tech, I thought like you do... I'm hoping they've improved things now to make the charging surfaces larger and cheaper to produce.

      The other issue with wireless charging is this: how much does the charging surface consume in watt hours when there's nothing on the surface? How about when it's under load? Something tells me it's going to be nowhere near as efficient as plugging in to mains power.

    18. Re:Pointless by dontmakemethink · · Score: 1

      This is how it should be:

      Two batteries, one in use, one always either charging or charged.
      Batteries are easily swapped.
      The devices have a small built-in battery or capacitor allowing for 30 seconds of idle operation without battery so reboot isn't necessary during battery swap.
      The charger has many pins to accomodate a wide variety of batteries, and can auto-sense battery type and pin polarity (unless the battery has abslutely no charge, rare).

      Battery chargers are easier and cheaper than robust mini power jacks and on-board charging circuitry. The reboot part is the main reason cameras use battery chargers and cel phones use power adapters.

      --

      War as we knew it was obsolete
      Nothing could beat complete denial
      - Emily Haines
    19. Re:Pointless by dontmakemethink · · Score: 1

      There's an app for that.

      --

      War as we knew it was obsolete
      Nothing could beat complete denial
      - Emily Haines
    20. Re:Pointless by Hognoxious · · Score: 1

      B b b b ut plugging it in is too hard!

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
    21. Re:Pointless by Anonymous Coward · · Score: 0

      But alas. That's just wishful thinking. Of course an Apple devices will only work with Apple mats etc. Hoping otherwise is just naive.

      I expect that Apple mats will charge vibrators, dildos, butt plugs...basically any type of electrified ass stimulation device.

    22. Re:Pointless by countertrolling · · Score: 1

      First place to look is the refrigerator. Probably find his glasses and dentures there, too.

      --
      For justice, we must go to Don Corleone
    23. Re:Pointless by Anonymous Coward · · Score: 0

      I dont get how people can have so many devices they need charged up on a daily basis. I have my phone, which needs charging every 2-3 days, and my iPod, which requires charging about once a week depending on how much I use it. My girlfriend also has an iPod, which she charges when mine isn't charging, and her phone. We have 3 plugs going in to our walls. What the heck are you people carrying around with you in your pockets that requires 20 adapters in the wall, that this device will make more convenient?

      Perhaps if you carried around an iPod, a digital camera, a cell phone, a portable projector, a blackberry, and a beeper, this may be a great invention for you. But if you're carrying around that much stuff, you either need a purse or a batman utility belt.

    24. Re:Pointless by Jeff+DeMaagd · · Score: 1

      It's been a long time since the last time I've had a broken jack on an electronic device. It's fine if other people want this wireless standard. However, if it means slower data transfer, likely slower charging, adding a bit of weight and thickness, at a higher cost, only to make it slightly more reliable, I'll be a late adopter on this particular idea.

    25. Re:Pointless by LoRdTAW · · Score: 1

      To me a big plus is the pad could be integrated into furniture to produce an invisible charger. If a desk sized charger mat could be retrofitted or simply stuck to the underside of an existing desk it would be convenient. You just lay the device on the desk and go about your business. It also cuts the need for having multiple chargers. My night stand has a charger for my phone and Ipod and they sometimes find their way to the floor behind the table. A single wire connected to a pad or mat that doesn't fall to the floor and can simultaneously charge a few devices without wires is a plus to me. And if that pad was integrated or could be fitted to the table it would be a nice and neat plus. I wouldn't hesitate to buy one of these chargers.

    26. Re:Pointless by antic · · Score: 1

      Beyond phones and cameras, a good use will be for kitchen appliances like toasters, kettles, sandwich makers, blenders, etc that are powered by the benchtops. For phones and cameras, it'd just be hype - most people would charge their phone over night once every few days, surely?

      --
      'Thats they exact same thing a banana wrench monkey.'
  9. That's nice... by nhytefall · · Score: 0

    6 months until another meaningless, vaporware standard.

    Seriously, doesn't anyone quite grasp the concept that wireless = radiated signal?

    Not saying anything negative, just asking why we give a shit when it will be *years* until this tech is actually in a wide-spread, usuable format?

    --
    0100010001101001011001 0100100000011010010110 1110001000000110000100 1000000110011001101001 0111001001100101
  10. And when I'm somewhere else? by fahrbot-bot · · Score: 1, Interesting

    walk into their home or office, toss their gadgets onto a mat to recharge...

    And how do I charge it when I'm somewhere else?
    Oh. Use a plug-in charger? Um... So, what's the point here?

    How about standardizing on a USB charging interface?

    --
    It must have been something you assimilated. . . .
    1. Re:And when I'm somewhere else? by twidarkling · · Score: 1

      Are you seriously railing against redundancy?

      Besides, if it's a small, flexible mat, you can take it with you just as easily as a USB-ended charging adaptor. Maybe more easily, if it doesn't require some form of brick.

      --
      Canada: The US's more awesome sibling.
    2. Re:And when I'm somewhere else? by rdnetto · · Score: 3, Informative

      How about standardizing on a USB charging interface?

      I thought we already had

      --
      Most human behaviour can be explained in terms of identity.
  11. man that wifi lawsuit guys i going to be unhappy. by the+simurgh · · Score: 0

    seriously he gets upset about wifi and a cellphone imagine this.

  12. Sure to be a hit by finity · · Score: 3, Insightful

    With all the /. users saying "this is going to be pointless," and "it's already easy enough as it is," this is sure to be a hit.

    1. Re:Sure to be a hit by Anonymous Coward · · Score: 0

      I agree it's quite spectacular that the /. crowd admits that "it's already easy enough as it is"

  13. This is done already by Anonymous Coward · · Score: 0

    Wireless Charging has been invented already. A Company in Finland has done it http://www.powerkiss.com/ The invention recenlty won an award from EUWIIN http://www.euwiin.eu/index.php?option=com_content&task=view&id=79

    1. Re:This is done already by MichaelSmith · · Score: 1

      Its an option for the palm pre as well.

    2. Re:This is done already by Quantos · · Score: 2, Informative

      You guys do realize that there was a fellow named Tesla that did some really ground breaking work on this originally, right?

      --
      Some people are only alive because it's against the law for me to hunt them down and kill them.
  14. Social Manipulation by Anonymous Coward · · Score: 0, Offtopic

    Ever notice that on TV commercials that compare the advertised brand to a "brand X" the person with the advertised brand makes smart choices and has a good time while the person using BRAND X makes dumb choices and suffers. Invariably it's a white male who uses brand X and a woman or a minority who makes the smart choice. Or if they're both women, the white woman makes the dumb choice and the minority is the smart one. Now just ask yourself, if everyone is truly equal then why is there such a deep psychological need to engineer even advertising this way? Or when the ad shows a boardroom of a corporation, it's one white woman, a few black males, a few asian women, maybe a hispanic man. Any white males shown are clearly subordinate to the boss who is in one of the "protected" categories. If everyone is truly so equal why must they work so hard to convince us that it is so? Do you guys think such blatant manipulation and social engineering is alright as long as you approve of its purpose? Do the ends justify the means? If so, why don't they openly admit they do this on purpose?

  15. How efficient is this? by the_rajah · · Score: 1

    Besides seeming to be not much of big deal convenience-wise, is this a "green" technology or is it a power leach drawing power even when it's not being used. What is the ratio of input power to power actually charging a device?

    Back in the late 50s, I ran a several turn loop around my bedroom and created a "Halo coil" with many turns on a set of monaural headphones so I could have cordless headphones for listening to my shortwave radio. It worked, but wasn't particularly efficient.

    --


    "Do the Right Thing. It will gratify some people and astound the rest." - Mark Twain
    1. Re:How efficient is this? by drawfour · · Score: 2, Informative
      From page 2 of the article:

      There is some loss in the system, however, and the technology being standardized is only about 70 percent efficient, Treffers said, meaning it is not a particularly green way to charge devices.

  16. Re:Grand prize for thedumbest technology of the... by MichaelSmith · · Score: 1

    Think about the power needed to keep mobile phones loaded with applications working though the day. It would be okay if you could be stuffed plugging it into USB whenever you sat down but thats too hard. But if you can drop it on to a charging pad from time to time the battery need never go down.

  17. remotes, shaves, toothbrushes, cordless phones, &a by Anonymous Coward · · Score: 0

    I don't really see the point. As long as you have to put the device in a specific location anyway, I don't see that it's much of an improvement over having to connect it with your charger. You have to connect it with a location just the same, with this new tech, just the plug is different (a pad vs a plug).

    Putting it in a specific location is good because you know where your device is (next to your wallet and keys). You're also assuming you'll only have one pad.

    Have a small pad on your night stand (perhaps incorporated into an alarm clock) to charge your cell phone overnight (if you're on-call and need quick access for 3 AM). Quartz watches can start having rechargeable batteries. If you pick up your device(s) when you leave in the morning, and place them down when you come in the evening, you'll have used the device between 8-12 hours. Then you can leave it there overnight for 12-16 hours worth of charging if you don't go out for the evening.

    Have a similar pad in your car to charge your devices. Another at work, perhaps integrated in a desk lamp or as part of the base of an LCD monitor.

    In the bathroom have a similar pad for recharging cordless shavers and toothbrushes. Have one for the remote control(s) and your cordless phone. Also the wireless remote control for console games, and pads for Bluetooth or RF mice.

    Also 5W is simply the beginning. Nothing says later revisions won't be able to go higher.

  18. Free recharge :D by saikou · · Score: 1

    If something like that will happen, I can imagine neighborhood teenagers suspiciously lounging about near your place. Because their newest cell phones will be recharged for free :)
    Of course you can lock down "over the air" emissions by shielding that room... but it means your cell, while charging, won't be able to receive/place calls. Which would require a femtocell inside that charging room, which makes it all even more expensive.

    So... please pull your gadgets out of the pocket and put them on the mat for now.
    Thanks :)

    1. Re:Free recharge :D by MichaelSmith · · Score: 1

      It only works with direct contact, like 1mm away. No further than that.

    2. Re:Free recharge :D by twidarkling · · Score: 1

      They were talking about the GP's "leave it to charge anywhere in the house." In that case, you *would* have the potential for people to leech power from outside.

      --
      Canada: The US's more awesome sibling.
  19. Underwater photography (charging a sealed camera) by malkavian · · Score: 3, Interesting

    This will be a huge boon to me.. One of my hobbies is underwater photography, and as anyone who does that will testify, you always have a nervous moment when you immerse the camera and housing at the start of a dive..
    This is because you have to seal the camera in a housing, sealed by a multitude of o-rings, each of which need to be cleaned and re-greased every time you open the housing. When you put the o-rings back in place, you have to look carefully for a hair, or a speck of grit or dirt, or anything that could compromise the seal in any way. If you mess up (even a single hair can cause a seal failure), you'll have a lovely view of rising water in your camera housing, and you camera will be so much junk (and you may kill the electronics in the housing too, which is expensive as well!)..
    This can really put a crimp in a holiday (no more photography for you! And you did have it insured, didn't you??)..
    There are really only two common reasons to crack a housing open.. To take the memory card out and back it up, and to recharge the camera/strobe batteries after a dive..
    As you need to recharge after most dives, nobody's really bothered much with wireless data transmission, but if you can wirelessly recharge, it's simple to add wireless data transfer too, so you'll not have to crack the case 'till you want to change the lens (which isn't too common most of the time) or strip it for cleaning (you could probably get away with once or twice a holiday, if that).. Much safer!

  20. curious... by thestudio_bob · · Score: 1, Interesting

    How efficient are these matts? Last I heard they were only 50% efficient. Does that mean that if I leave this thing plugged in all the time, it's "waisting" energy?

    --
    The real Sig captains the Northwestern. This one captains /.
    1. Re:curious... by MichaelSmith · · Score: 2, Interesting

      The article implies a data channel from the device to the charger so the charger knows when not to deliver power.

  21. Fear of power lines... by HockeyPuck · · Score: 2, Interesting

    If the public is already afraid of living near power lines (100yds away), what makes these manufacturers think that having a bunch of 'wireless power pads' is going to be any different? Or is this a case of a rabid chihuahua is no threat due to its size?

    1. Re:Fear of power lines... by dbIII · · Score: 1

      Extreme situations like pregnant women operating poorly shielded electromagnetic PVC welders and Brazilian monkeys keeping warm by induction very close to power lines established that there is a potential problem. Unfortunately people make wild assumptions either way and assume that if they can see the power lines the EM field can get to them. I work on a block that has a 33kV line passing over, tests were made and only the top floor of the corner of the building closest to the lines had anything above what you get from the mains wiring in the walls. That's where we put the board room :)
      It appears that the mechanism is induced heating of water in the body, and since EM fields drop a great deal in intensity with distance you'd have to get very close to a very strong field for that to happen. People worry anyway, and then go and sleep on electric blankets!
      On the other extreme a Judge ruled that 50Hz EM radiation cannot penetrate the human skin, despite the situation where anyone that has worked with induction furnaces could tell you it gets through nearly an inch of steel!

  22. Obvious Applications by Anonymous Coward · · Score: 0

    Game controllers, wireless mice/keyboards/etc. A lot of obvious applications, and we'll all have to buy new stuff to use it. Yeah I'm guessing this will be popular.

  23. could've happened sooner by notnAP · · Score: 1

    ... but every time they call each other, the calls go straight to voice mail, as if the phones are never turned on. weird.

  24. Rugged, more sturdy devices by sznupi · · Score: 1

    It will be much easier to make a device more rugged (also mobile phones looking otherwise quite stylish; check Nokia 3720 classic) if it doesn't need to have any plugs.

    This for power, Bluetooth/etc. for connectivity.

    --
    One that hath name thou can not otter
  25. A Modest Proposal by Anonymous Coward · · Score: 1, Funny

    That sounds awfully inconvenient if you're trying to take a call. Perhaps instead of having one large mat that all the phones have to lie on top of, you could split it up into smaller inductors, put a layer of velco on each, and wire them to extend up to 3 feet from the central hub. Your cell, of course, would have a corresponding velcro patch, and if you needed to make a call, you just pick it up and call, without having to worry about running out of power on a quarter-charge.

    I think we could call it a "tetherphone."

  26. magnetic media eraser? by Anonymous Coward · · Score: 0

    What will happen if a magnetic medium such as a diskette or magnetic tape is left on it? It's hard enough keeping them away from mobile phones and CRT degaussers.

  27. No, there's a very important point. by Anonymous Coward · · Score: 0

    The reason for this is because wireless induction charging is a lossy process. It cannot be made as efficient as wired charging. There's some basic physical realities that must be observed.

    There are a great many people in this world who are ardent believers in "The Tragedy of the Commons" and "social darwinism" and "Devil take the hindmost is good for the species" to quote a few favorite chestnuts.

    These people do not like the idea that you can get food, air and water without paying for it. They believe that only the hereditary aristocracy, who have been selected by capitalism itself, should ever get anything without laboring for it. Therefore, pollution is good since it makes free air and water a thing of the past; you will buy your air and water from the air and water markets, or you will die and make room for a stronger man.

    Y'all think I'm raving, or that I'm trolling, or whatever you want. I have been in the room with Reaganista millionaires who have been quite frank about their objectives. They want pollution, and they are willing to buy and sell presidents like bars of soap. They love wireless power, it wastes energy. They love war in the middle east, too - it's one of the quickest ways to pour carbon into the atmosphere, and at the same time it drives up prices at home and helps legitimize coal burning. Anything that gets them closer to total destruction of all commons is considered a win.

  28. Medical application by Anonymous Coward · · Score: 0

    I work in a hospital environment, where we perform "generator" changes for pace makers. When I suggested this technology to one of the pacer sales reps, he jokingly told me to "shutup". I certainly see how a charging mat can be used on an internal pacemaker to recharge the device.

  29. energy loss by Fuzzums · · Score: 2, Interesting

    the fact that this process inevitably will cost more energy than plugging the device is seems unimportant...

    --
    Privacy is terrorism.
  30. Re:Underwater photography (charging a sealed camer by Anonymous Coward · · Score: 0

    Somebody should invent a housing with a USB plug on the outside and a short usb cord on the inside to attach to the camera...... assuming that it is possible to both charge and transfer photos via USB on your particular camera model.

  31. Re:Grand prize for thedumbest technology of the... by Hurricane78 · · Score: 0, Flamebait

    It would be okay if you could be stuffed plugging it into USB whenever you sat down but thats too hard.

    That’s too hard?? What kind of lazy ass are you??
    *blinks*
    It’s still there...

    Unbelievable. That is exactly the kind of attitude, that natural selection is there to weed out.
    what’s next? “Oh this walking to the toilet is too hard, so I’ll need a catheter. Or else i’m just going to piss myself.”

    Un-fuckin-believable. I must save this, put it into a sig. It just blow my mind...

    I”ve got a chair for you: http://www.bwass.org/bucket/idiocracy_toilet_chair.jpg

    --
    Any sufficiently advanced intelligence is indistinguishable from stupidity.
  32. Timely article... by Anonymous Coward · · Score: 0

    I JUST watched this TED talk earlier this week. I have to say, the ideas and implementation in the video seem pretty damn cool to me. E.g existing models that can power flat-screen TV's and would be installed in the wall, no need for a power cord, installed in a desk to automatically charge your laptop, or (the coolest to me) in the walls of your garage to charge your plugin electric car.

    http://www.ted.com/talks/lang/eng/eric_giler_demos_wireless_electricity.html

  33. Re:Underwater photography (charging a sealed camer by raygundan · · Score: 1

    And for us slightly less serious underwater photographers, I can imagine a nice little point-and-shoot cast in a solid block of polycarbonate. No gaskets at all-- no leaks until crush depth and catastrophic failure.

  34. Re:Grand prize for thedumbest technology of the... by MichaelSmith · · Score: 1

    Somebody else pointed out in this article that you don't want to overuse the connectors on phones because they do eventually break. I charge my phone once a day for this reason. Thats all it is.

  35. Re:Underwater photography (charging a sealed camer by Anonymous Coward · · Score: 0

    Why doesn't someone just add a waterproof charging power jack?? Are they ANY thinkers left?

  36. Convenience, but at what cost? by WimBo · · Score: 1

    I keep wondering what the real benefit of wireless power is for the gadget community in general. Wireless power is going to be less efficient than wired power because of simple physics. If all of these devices are now designed so that they get power over the air, then we are further wasting electricity.

    I did see the mention of underwater devices that have to be completely sealed, and avoiding breaking that seal makes some sense, but for general devices that are used in the air, I see it all as a big waste of energy for a small offset in convenience. IT would be better to develop a surface mount magnetic connection that was as universal as USB. (and accepted, similar to the new cell phone charging standards)

  37. How hard is it, really? by zippthorne · · Score: 1

    I mean, seriously, how hard is it to come up with a standard for this?

    I'll take a stab:

    5 Ghz, keep power below the FCC limit for uncontrolled emission at at (1 meter or less).

    Was that so hard, really?

    --
    Can you be Even More Awesome?!
  38. Head cancer! by Anonymous Coward · · Score: 0

    Scott is clearly behind this. It's a cunning plan to get one of these devices into Terrance and Phillip's house and give them both head cancer.

    Head cancer!

  39. This should be BANNED! by upuv · · Score: 4, Insightful

    OK does any one else see this as completely nuts?

    At the moment the power output is relatively low. 5 watts ish. Lets think about this. This is BROADCAST POWER. It's going to leak into everything around it. There will be no such thing as 95% efficient transfer of power. So where does this residual power go. Well into everything around it. The closer something is the more it will receive.

    Very simple chemistry here. Entropy increase with energy. Entropy can simple be defined as the desire of a substance to reach it most random and natural state. ( There is probably a more accurate definition than that. ) AKA Entropy is all about things BREAKING DOWN. So if we add energy to a "thing" it ultimately will break down faster.

    I'm sorry but I don't want to be walking around in yet more energy radiation fields. Especially one designed to transmit POWER AKA ENERGY.

    5 watts gives way to 10 watts gives away to 25 watts gives away to stupid amounts of power. As "improvements" and legislation allow higher and higher output.

    This also strikes me as the most un-green tech out there. Simply a device that radiates POWER.

    1. Re:This should be BANNED! by selven · · Score: 0, Offtopic

      It radiates power? So if I stand in its field for a few hours I'll be able to do a lot more work per second for the rest of my life?

    2. Re:This should be BANNED! by AmazingChicken · · Score: 1, Funny

      I know some politicians [and middle managers] who would be interested

    3. Re:This should be BANNED! by cheros · · Score: 1

      Minor detail, AFAIK it's physics. In the main, however, you do voice my own doubts as well.

      I have yet to come across ANY wireless transmission method that didn't incorporate a degree of loss.

      I would have been FAR more interested in getting at last a Really Universal Power Supply (let's call it a RUPS) that could feed everything I jacked into it. My problem isn't plugging in, my problem is the vast plethora of chargers required to keep all this stuff going, which has partially driven my preference for anything USB connected.

      However, from an eco perspective we're leaving the most obvious elements untouched: neon power lights. With what one of these uses you can almost light a room by using LEDs, yet they're in almost any power block I've used last year..

      --
      Insert .sig here. Send no money now. Owner may sue, contents will settle. Batteries not included.
    4. Re:This should be BANNED! by crdotson · · Score: 0, Flamebait

      I skimmed the comments on this article just to find one like yours, whining about "oooh scary radiation". Congratulations!

      Note that by your reasoning, you should be equally scared of light bulbs.

    5. Re:This should be BANNED! by crdotson · · Score: 1

      Unless you mess with superconductors regularly, you probably haven't come across any WIRED transmission method that doesn't incorporate a degree of loss. :) Although I'll grant you that for short distances it's often so small as to be negligible.

    6. Re:This should be BANNED! by upuv · · Score: 1

      Your comments make it sound like a conductor like copper leaks like a device made to radiate watts. Far from the truth, power companies try as hard as they ca to distribute power with minimal radial loss. Why? it saves money.

      This tech on the other hand is quite the opposite. It makes more money the better it can "radiate" power to a device.

      So drawing a parallel is not appropriate as they have opposite goals in design.

    7. Re:This should be BANNED! by Anonymous Coward · · Score: 0

      You are a NUTCASE. Also, stop using CAPS to emphasize your POINTS.

  40. Great. Another way to squander energy! by Anonymous Coward · · Score: 0

    It's reported to be 70% efficient. Now that we are (at last!) approaching 80..90% on switching power supplies, it was about time someone found a way to fx that :-(

    There are stupid ideas, damn stupid ideas and then there is marketing.

  41. Which USB? by Rob+Simpson · · Score: 1

    I'd prefer mini-USB, but the crappy awkward micro-USB seems to be taking over. Oh, well... I'll be rid of it when the next "standard" comes out in a couple years.

  42. Re:Underwater photography (charging a sealed camer by theapeman · · Score: 1

    It should be easy enough to add a sealed USB socket to the case. So you connect the USB port on the cammera to a lead which runs to the USB socket. This socket can have a waterproof cover which you remove when you want to connect to your PC/charger. It would be easy to seal the USB socket cover, as it can be round and screwed down with O-ring seals. This could be done with todays cameras - if they allowed you to charge the battery via the USB connection. You could also test the seals on the case before diving. You would need a chamber large enough to contain the camera in its case. Pressurize the chamber and watch a pressure gauge inside the case - if the gauge does not rise then you have a good seal. So what you want is a case manufacturer to build a housing with an external power/usb connector. The power could be used to charge batteries in the housing which drive any electronics in the housing, and also provide power to the camera (via its DC connector) and any strobe lights. The housing would also have a built-in pressure gauge for testing. This would probably be cheaper than buying a new camera, and could be applied to any existing camera.

  43. Impressive by AmazingChicken · · Score: 1

    Ooooohhhhhh. Aaaaaaaaahhhhhhh.

  44. USB standards by Overzeetop · · Score: 1

    I know this is a late response, but I didn't see it in the children comments:

    USB is capable of delivering 5V at 1A, or 5W of power, per port in its maximum configuration. This is likely where the spec came from, since most manufacturers are moving towards the mini-usb as a power source. By providing the current standard limit, most device designs will already conform downstream of the induction coil. They've simply designed to the marketplace.

    What they didn't necessarily consider is that it would be great if we could get 10-20W out of a charger to get this !@#$% charged a little faster. Especially things like phones, which can take a significant fraction of that 5W to operate under heavy use conditions.

    --
    Is it just my observation, or are there way too many stupid people in the world?
  45. Re:Underwater photography (charging a sealed camer by Overzeetop · · Score: 1

    High end cameras (the kind you'd be really worried about) generally have separate battery packs that recharge on a conditioning charger. They don't charge in-camera because no professional in their right mind is going to dock their camera for any length of time - they swap and go. There are options for studio photogs that will continuously power the cameras, but studio and underwater really aren't overlapping.

    Interestingly, the housings already cost as much as (or more than) the camera itself. I just picked up a Nikon D3 on the used market for $2500 (offically for work), and the housings for them are north of $3-4k (a new D3s is $5300). I'll be sticking with my Fuji F30 and housing for holiday snaps of the fishes!

    FWIW, a pressure gauge might not be terribly useful without a pretty heavy duty test rig. You can't test for external pressure without putting the housing in a second housing. You don't want to test in reverse (not all o-ring seals are reversable, it's based on groove geometry), and even if you were foolish enough to pull a vacuum on the casing it would still only be one atmosphere - which is likely 25-35% of the pressure differential on a "normal" dive.

    --
    Is it just my observation, or are there way too many stupid people in the world?
  46. Shi-Shi by tepples · · Score: 1

    And Mandarin has so many homonyms to have fun with, especially if you drop the tones ...

    Just ask CHAO Yuen Ren.

  47. Relevant TEDTalk by Anonymous Coward · · Score: 0

    Just saw this earlier this week...A guy named Eric Giler demoed wireless powering of a commercially available flat-screen TV, as well as cell phones.

    This seems really cool to me, especially a few implementations mentioned in the talk (and/or TFA)--installation of larger panels inside walls to automatically power devices simply present in the room, installed in desks for laptops, installed in garage walls or floors to charge plugin electric cars.

  48. Re:Underwater photography (charging a sealed camer by bingemaster · · Score: 1

    If you can use SDHC cards, you can get easy wireless data xfer with an EyeFi card. I didn't believe in them 'till I got one. Now I'm never going back.