NFC Codes: How Blackberry 10 Is Maximizing The Potential Of NFC Codes




By Thea Neuman (Google)

The NFC feature, native to BlackBerry 10 has made file sharing between two or more Blackberry smartphones as easy as buying candy. With a Tap-and-Share feature, users can instantly connect over images, messages and other types of files. NFC always remains active by default in BlackBerry 10 and is meant to encourage users to use it in every social way possible. Once a file, like a photo, a song, a video or a message has been selected, users simply have to tap on the Share tab and choose NFC. When they bump their devices together, the sharing occurs right away.

There is another way to quick-share files between BlackBerry 10 phones and this too uses the NFC feature. When both phones have their NFC feature active, all that is left to do is bumping the phones against one another. For instance, to share images just bump the phones together and that’s all.

What is NFC?
NFC is the point of file exchange between BlackBerry 10 phones. It acts an interface reader that makes it possible for users to share data effortlessly.

What are NFC tags?
NFC tags are memory chips. These store messages in a specific universal format. It is known as NDEF and read as NFC Data Exchange Format. There are different classes of NFC tags and they come in a variety of dimensions and profiles. Each tag performs a unique function and is important for successful data sharing to take place.
Each NDEF message might contain multiple NDEF records like Text and Smart Poster.

Types of NFC tags
Tags have been classified on the basis of the difference between their capacity for message storage and their individual protocols:
● Type 1
● Type 2
● Type 3
● Type 4

How NFC tags work
These tags are the elements responsible for data sharing. They can be read by NFC interface built into the BlackBerry 10 and are then sent to the other phone waiting to receive the data.

The NFC reader integrated with every BlackBerry 10 acts as the message converter. When one NFC tag, (Type 1, 2, 3 or 4) approaches the reader, the message carried by the tag is transferred through the interface to the NFC reader. The reader then sends the message to another application so that it can be properly processed.

NFC Codes: How Blackberry 10 Is Maximizing The Potential Of NFC Codes All four types of tags do not function similarly. Type 1, 2 and 3 limits data exchange to the third layer of ISO1443, a protocol stack for NFC. Type 4 varies the approach a bit. It allows data communication only at the fourth level of the stack. It can be accessed using ISO7816-4 APUDs. Hence, these types of tags have become extremely important for developers.

Another feature of the smartphone, the Native API for BlackBerry 10, is also responsible for data sharing. The APIs are developers’ favorite tools since they alert the system when an NFC tag is approaching the application. These receive the tag and process it.  Native APIs can even script NDEF messages on NFC tags.

All these have made file sharing on the BlackBerry 10 not only smooth and stylish but also better than many other smartphones in the market.

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