2007-08-11 05:33:49 · 14 answers · asked by haripriya m 1 in Computers & Internet ➔ Hardware ➔ Laptops & Notebooks
It isn't.
2007-08-11 05:35:50 · answer #1 · answered by Anonymous · 2⤊ 3⤋
The power is provided from the USB port of your computer to your wireless USB stick.
2007-08-11 12:40:35 · answer #2 · answered by Christian H 2 · 0⤊ 2⤋
Oops, I didn't read wireless in it. Wireless must be operated by a battery. If you're using wired, however:
USB has different colored wires inside the cable. Some USB cables have the power wire (i think its yellow). If it has the yellow wire inside, it is able to transfer power, but it must be connected to a powered USB port.
2007-08-11 12:36:16 · answer #3 · answered by Anonymous · 0⤊ 3⤋
USB cables have are able to tap the computer's power to charge stuff, but wireless usb wouldn't have that ability, seeing as how you can't really send electricity through thin air.
2007-08-11 12:40:43 · answer #4 · answered by go2bermuda 4 · 0⤊ 2⤋
In wireless USB the host (computer) and the peripheral (keyboard, etc) must have their own power supply.
http://www.usb.org/developers/wusb/
http://en.wikipedia.org/wiki/Wireless_USB
Wireless transfer of electricity is NOT impossible. It has been invented. It's just not very efficient or widely deployed. It works on the same principles that make your cell phone work (or any other radio transmission).
http://en.wikipedia.org/wiki/WiTricity
http://news.bbc.co.uk/2/hi/technology/6725955.stm
However, WUSB does not do this.
2007-08-11 12:42:26 · answer #5 · answered by Eric L 5 · 1⤊ 2⤋
You cannot transfer power wirelessly between devices. Both the transmitter and the receiver must have their own power supply. The device attached to your pc gets its power from the desktop/laptop. The wireless device has to have a battery. You cannot convert radio waves into electricity.
2007-08-11 12:41:21 · answer #6 · answered by crackerboy 5 · 0⤊ 3⤋
There is no power transfer with Wireless USB.
Ignore the guy who says there is no such thing, he's just an idiot who doesn't read the news.
2007-08-11 12:41:17 · answer #7 · answered by doctorwand 2 · 0⤊ 2⤋
One lead in the USB connector is +5v and another is -5v. The remaining are data and ground.
2007-08-11 12:39:13 · answer #8 · answered by mdigitale 7 · 0⤊ 1⤋
By taking out the batteries and plugging them in something else?
2007-08-11 12:38:36 · answer #9 · answered by againyourright 4 · 1⤊ 2⤋
there is not such thing as a wireless USB... be more specific or no one can help you.... and it's impossible to have wireless electricity.... they are working at it but it's not invented YET.
2007-08-11 12:38:31 · answer #10 · answered by Michael Y 4 · 1⤊ 5⤋
I don't know about that, but you can buy toothbrushes that charge remotely. the only problem is that if you go between the charger and the toothbrush you get cancer or something.
2007-08-11 12:41:54 · answer #11 · answered by Anonymous · 0⤊ 3⤋