Wireless Power Transmission Demo

Intel has showed off its wireless power transmission technology before with lightbulbs and Netbooks, and now it has shown it running a speaker playing music. The rear coil broadcasts power electromagnetically, and the smaller front coil, with the speaker in its center, is tuned to pick up the same frequency.

Intel hopes the technology will be useful for charging devices without wires and possibly within devices such as a laptop, which today carries power from a battery to its screen through a flexible but fallible cable.

Intel Labs researchers showed the technology at an Intel Research Day event.

June 19, 2009 9:11 AM PDT

Photo by: Stephen Shankland/CNET

| Caption by: Stephen Shankland