Start-up Humavox unveils wireless charging via radio frequency
The new Eterna hardware platform works in a way similar to a Wi-Fi router
Computerworld - Israeli start-up Humavox has announced a new hardware platform that uses radio frequency (RF) to transmit power wirelessly to mobile devices.
Humavox's Eterna platform is aimed at making it simpler to charge wearable devices such as hearing aids, smartwatches and augmented reality glasses.
The wireless charging market - small as it is -- is dominated by companies that today offer products that use electromagnetic fields to create a link to transfer power without cords. As of yet, the marketplace has not settled on an industry standard, though groups have taken positions behind several specifications.
Humavox's Eterna hardware platform will be sold as intellectual property to device manufacturers so they can integrate the company's wireless charging element using whatever method works best for them, according to Omri Lachman, founder and CEO of Israel Humavox.
The Humavox technology consists of a "NEST" Station -- a design-free RF resonator that charges devices put inside it, with no placement or orientation requirements. The NEST (i.e., like a bird's nest) prototype created by Humavox is a white, plastic ball that can be opened to reveal a small charging bowl.
Lachman said the device should be able to charge an enabled product in about the same time as with a charging cord. In tests, the technology's charging efficiency "rarely drops below 90%," he said, referring to the amount of power lost in the wireless transfer.
Humavox's other enabling technology is ThunderLink, a wireless charging receiver that integrates with a device in a variety of technologies, from PC boards to aftermarket mobile device sleeves to full ASIC (application-specific integrated circuit) integration, meaning there is virtually no engineering required by manufacturers, Lachman said.
"Our key guideline was to create an effortless and seamless experience for users and manufacturers. We wanted to make charging as simple as dropping a product in a box," Lachman said. "We wanted to take charging from being an oppressive action...for some users to an intuitive action."
Lachman compared his company's RF charging technology to magnetic resonance and inductive charging techniques, saying the latter is more difficult to integrate into mobile products.
"With Humavox, there is no longer a need for wires, flat surfaces or precise placement onto power-charging mats -- it's as simple as putting a device of any shape or size into a box," he said. "The simple way to illustrate how RF charging works is that it's very similar to how a Wi-Fi router works.
"In our case, you have a small unit with an antenna...and it will receive that RF that's converted into DC energy," Lachman said.
Humavox plans to demonstrate its technology at next month's CES Conference in Las Vegas. Lachman said his company is in talks with mobile product manufacturers to integrate the technology, but he would not disclose which ones.
Humavox's technology transmits RFs over a broad band of frequency waves and converts it to voltage to wirelessly charge the battery, Lachman said. The technology uses coils similar to those used by magnetic resonance to transmit power, but additionally uses an antenna to establish the transmission connection.
Humavox is not alone in the Wi-Fi wireless charging space. After six years of development, start-up Ossia has already demonstrated its Cota wireless charging technology, which it says will be available to consumers and enterprises by 2015.
Another company, PowerbyProxi, also has a wireless charging technology that allows users to simply place objects into a box to be charged. Earlier this year, Samsung's venture funding arm announced it was investing $4 million in the company.
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