Apple looking into wireless charging technology
TweetFollow Us on Twitter

Apple looking into wireless charging technology



A new patent (2012303980) at the U.S. Patent & Trademark Office shows that Appel is looking into "realistic and practical" wireless charging. The patent is for "wireless power utilization in a local computing environment."

Various embodiments of a wirelessly powered local computing environment are described. The wireless powered local computing environment includes at least a near field magnetic resonance (NFMR) power supply arranged to wirelessly provide power to any of a number of suitably configured devices.

In the described embodiments, the devices arranged to receive power wirelessly from the NFMR power supply must be located in a region known as the near field that extends no further than a distance D of a few times a characteristic size of the NFMR power supply transmission device. Typically, the distance D can be on the order of one meter or so.

Here's Apple's background on the invention: "Historically, transferring power wirelessly has been successful for fairly limited applications. In particular, only those applications where a wireless power source and a wireless power receiver are located very close to each other have been successful. In this arrangement, the wireless power source and the wireless power receiver are typically coupled inductively by way of a magnetic field that can entangle both the power source and receiver.

"Although well suited for applications requiring relatively low power (on the order of mW), this same process is not suitable for those applications requiring either more power (on the order of at least a few watts to hundreds of watts) or where the power source and power receiver are located further apart from each other, such as a few inches to a few feet.

"However, it has been discovered that useable power can be transferred wirelessly from a power source to a receiver located within a distance referred to as a near field. By near field it is meant that within a distance a few times larger than that of both objects involved in the transfer (about one meter or so for most applications) a relatively large amount of power (at least on the order of a few watts) can be transferred between a wireless source device and a receiver with an acceptable efficiency.

"In this way, a realistic and practical approach to wireless transferring useable amounts of power over distances suitable for limited applications can be realized. Typically, each battery powered device such as a wireless electronic device requires its own charger and power source, which is usually an alternating current (AC) power outlet. Such a wired configuration becomes unwieldy when many devices need charging.

"Various over-the-air or wireless power transmission between a transmitter and a receiver coupled to the electronic device to be charged have been carried out that generally fall into two categories. One category is based on the coupling of plane wave radiation between a transmit antenna and a receive antenna on the device to be charged. The receive antenna collects the radiated power and rectifies it for charging the battery. Antennas are generally of resonant length in order to improve the coupling efficiency. This approach suffers from the fact that the power coupling falls off quickly with distance between the antennas, so charging over reasonable distances (e.g., less than 1 to 2 meters) becomes difficult.

"Other techniques rely upon inductive coupling between a transmit antenna embedded, for example, in a “charging” mat or surface and a receive antenna (plus a rectifying circuit) embedded in the electronic device to be charged. This approach has the disadvantage that the spacing between transmit and receive antennas must be very close (e.g., within thousandths of meters). Though this approach does have the capability to simultaneously charge multiple devices in the same area, this area is typically very small and requires the user to accurately locate the devices to a specific area.

"With wireless power transmission there is a need for apparatuses and methods for transmitting and relaying wireless power at varying power levels and multiplexed times to increase power transmission efficiency.

"Furthermore, what is desired are methods, systems, and apparatus for efficient and user friendly interaction between peripheral devices in a wirelessly powered local computing environment. In particular, in order to enhance the user's experience and provide efficient power utilization, cooperation between the plurality of peripheral devices in the context of the wireless power environment is desired."

The inventors are Michael F. Culbert, Brett C. Bilbrey, David I. Simon, and Peter M. Arnold.

 
AAPL
$128.46
Apple Inc.
-1.96
GOOG
$558.40
Google Inc.
+2.92
MSFT
$43.85
Microsoft Corpora
-0.21
MacNews Search:
Community Search:
view counter

view counter
view counter
view counter
view counter
view counter
view counter

Get The Whole Story – Lone Wolf Complete...
Get The Whole Story – Lone Wolf Complete is Now Available and On Sale Posted by Jessica Fisher on February 27th, 2015 [ permalink ] Universal App - Designed for iPhone and iPad | Read more »
Who Wore it Best? The Counting Dead vs....
Like it or not, the “clicker” genre, popularized by cute distractions like Candy Box and Cookie Clicker, seems like it’s here to stay. So Who Wore it Best? takes a look at two recent examples: The Counting Dead and AdVenture Capitalist. | Read more »
Card Crawl, the Mini Deck Building Game,...
Card Crawl, the Mini Deck Building Game, is Coming Soon Posted by Jessica Fisher on February 27th, 2015 [ permalink ] Tinytouchtales and Mexer have announced their new game, | Read more »
Witness an all new puzzle mechanic in Bl...
Well, BlastBall MAX is not one of those games and is bucking trends such as timers, elements of randomness, and tacked-on mechanics in favor of pure puzzle gameplay. When you first boot up the game you’ll see a grid made up of squares that are each filled with four circle-shaped holes in it, and some of those holes will have yellow balls sitting... | Read more »
This Princess Has a Dragon and She isn’t...
This Princess Has a Dragon and She isn’t Afraid to Useit. | Read more »
Mecha Showdown Review
Mecha Showdown Review By Lee Hamlet on February 27th, 2015 Our Rating: :: IN A SPINUniversal App - Designed for iPhone and iPad Mecha Showdown replaces traditional buttons with a slot machine mechanic in this robot fighting game, but the thrill of the gamble just isn’t there.   | Read more »
Reliance Games and Dreamworks Unveil Rea...
Reliance Games and Dreamworks Unveil Real Steel Champions Posted by Ellis Spice on February 27th, 2015 [ permalink ] Reliance Games and Dreamworks have announced that a third game in | Read more »
Sum Idea Review
Sum Idea Review By Jennifer Allen on February 27th, 2015 Our Rating: :: TAXING NUMBERSUniversal App - Designed for iPhone and iPad Sum Idea is a fairly charming but taxing puzzle game.   | Read more »
A New Badland Update Brings Daydream Lev...
A New Badland Update Brings Daydream Levels to Co-Op Posted by Ellis Spice on February 27th, 2015 [ permalink ] Universal App - Designed for iPhone and iPad | Read more »
Slashing Demons Review
Slashing Demons Review By Lee Hamlet on February 27th, 2015 Our Rating: :: IT'S A LONG WAY TO THE TOPUniversal App - Designed for iPhone and iPad Slashing Demons lacks the depth or scope to take it beyond the point of being just another endless tapper.   | Read more »
All contents are Copyright 1984-2010 by Xplain Corporation. All rights reserved. Theme designed by Icreon.