A Light Peak Refresher

In a YouTube video released by Intel in October 2009, Jason Ziller, head of Intel's optical I/O Program on Light Peak stated the following: "This new technology is a new optical cable technology designed to connect all of your electronic devices together, such as disk drives, peripherals, displays etc. It runs at very high speed. Its bandwidth starts at 10 Gbps and has the ability to scale up to 100 Gbps over the next decade. And because it's optical, it allows you to run it on smaller connectors and very long cables such as a 30 meter cable." Mr. Ziller goes on to state that "another benefit of this technology is it has the ability to run multiple existing I/O protocols simultaneously on a single cable."

The video was first covered in our report titled "Intel IDF 2009: On the Cusp of a Whole New Industry." In that report we pointed to a factoid from Engadget that stated that Apple had actually "brought the concept to Intel." In a granted patent of Apple's published this week, we were able to see that a September 2008 patent filing was made that indeed discusses a new fiber optic data and power transfer system that in fact mirrors all that we've heard about Light Peak. Whether this ends up to be Light Peak or Apple's version of it is irrelevant being that either way we'll be the beneficiary of faster recharging and data transfers.

Technically Speaking 

Technically speaking, Apple's patent covers circuits, apparatus, and methods for power and data transfer systems that could supply both power and data to mobile computing or other types of devices using a single connection. Further embodiments of the present invention also provide power and data adapters that could provide data and power to mobile computing or other types of devices using a single cable. Further embodiments of the present invention provide connector systems for connecting fiber-optic and power cables to mobile computing or other types of devices. Further embodiments of the present invention provide connector systems with connector inserts that easily disengage from connector receptacles using a series of magnets.

These connections may include one, two, four, or other numbers of fiber-optic cables. In a specific embodiment of the present invention, four fiber-optic cables are used, where two cables are used for data transmission and two are used for data reception. A specific embodiment of the present invention provides four such contacts, two for a power supply voltage and two for ground connections. This allows relatively high currents to be provided to the mobile device, enabling rapid battery recharging.

In various embodiments of the present invention, this power and data adapter may receive power from a wall, car, or other type outlet. The power and data adapter may directly connect to the outlet, or it may connect to the outlet via a power cord or cable. A specific embodiment of the present invention plugs directly into a wall outlet. In this case, the power and data adapter may also include circuitry for converting AC power to DC power suitable for being provided to the mobile computing or other type of device.

The power and data adapter may provide and receive data to and from other devices using fiber-optic cables, or other types of wired or wireless connections such as Local Area Networking (LAN), Universal Serial Bus (USB), Digital Visual Interface (DVI), DisplayPort, IEEE 802.11 a, b, g, or other types of connections.

Power and Data Transfer System & Adapter

Apple's patent FIG. 11 illustrates a power and data transfer system. Data received at the data connections is converted to optical data by the power and data adapter 1110 and provided to the connector insert 1120 via the fiber-optic and DC power cable 1124. Data received at the connector insert is received by the power and data adapter 1110, again via the fiber-optic and DC power cable 1124. The power and data adapter could then convert this data and provide it on the appropriate connector.

In this specific example, the connector receptacle 1132 is located in a laptop 1130, though in other embodiments of the present invention, the connector receptacle may be located in other types of mobile or other electronic devices. For example, the connector receptacle may be located in a portable media player [iPod], display, cell phone [iPhone], desktop computer [iMac], or other mobile or non-mobile computing or other type of device.

Apple's patent FIG. 2 illustrates circuitry for a power and data adapter.

Multiple Fiber-Optic Cables Allow for Backward Compatibility  

Apple's patent FIG. 5A illustrates a single fiber-optic line 530 being used to transfer optical data from the connector insert 510 to the connector receptacle 560. Apple goes on to illustrate a two-fiber-optic line but it's the next one that's of interest. Apple's patent FIG. 5D illustrates four fiber-optic lines 530. An additional pin, which may be a signal or a power pin, is placed in the center of the four fiber optic lines.

Apple's states that the advantage to this is that it allows backward compatibility with currently available connectors and receptacles that are discussed in Apple's U.S. granted patent 7,311,526 covering MagSafe. This would support another recent patent of Apple's that we covered in our report titled "Apple Considers MagSafe for Portable Devices like the iPad" – (see graphic below). This recent patent certainly sheds light on the matter by providing us with more context. 

Apple credits John DiFonzo, Chris Ligtenberg and Michael Culbert as the inventors of granted patent 7,841,776, originally filed in Q3 2008.

Notice: Patently Apple presents only a brief summary of patents with associated graphic(s) for journalistic news purposes as each such patent application is revealed by the U.S. Patent & Trade Office. Readers are cautioned that the full text of any patent application should be read in its entirety for further details. About Comments: Patently Apple reserves the right to post, dismiss or edit comments.

Other Community Sites Covering our Original Report

MacSurfer, Apple Investor News, Google Reader, Reddit, One More Thing Netherlands, 9 to 5 Mac, OS X Daily Applesferra Spain, SlashGear , MacFreak Netherlands and Melamorsicata Italy.