Sunday, August 28

Java Ring

What is Java Ring?

A Java Ring is a finger ring that contains a small microprocessor with built-in capabilities for the user, a sort of smart card that is wearable on a finger. Sun Microsystem's Java Ring was introduced at their JavaOne Conference and, instead of a gemstone, contained an inexpensive microprocessor in a stainless-steel iButton running a Java virtual machine and preloaded with applets (little application programs). The rings were built by Dallas Semiconductor. 

Workstations at the conference had "ring readers" installed on them that downloaded information about the user from the conference registration system. This information was then used to enable a number of personalized services. For example, a robotic machine made coffee according to user preferences, which it downloaded when they snapped the ring into another "ring reader." 

Although Java Rings aren't widely used yet, such rings or similar devices could have a number of real-world applications, such as starting your car and having all your vehicle's components automatically adjust to your preferences.

The Ring, first introduced at JavaOne Conference, has been tested at Celebration School, an innovative K-12 school just outside Orlando, FL. The rings given to students are programmed with Java applets that communicate with host applications on networked systems. Applets are small applications that are designed to be run within another application. The Java Ring is snapped into a reader, called a Blue Dot receptor, to allow communication between a host system and the Java Ring. 


An iButton is a microchip similar to those used in a smart card but housed in a round stainless steel button of 17.35mm x 3.1mm - 5.89mm in size .The iButton was invented and is still manufactured exclusively by Dallas Semiconductor mainly for applications in harsh and demanding environments.                              
A Java Ring--and any related device that houses an iButton with a Java Virtual Machine--goes beyond a traditional smart card by providing real memory, more power, and a capacity for dynamic programming. On top of these features, the ring provides a rugged environment, wear-tested for 10-year durability. You can drop it on the floor, step on it, forget to take it off while swimming and the data remains safe inside.  Today iButtons are primarily used for authentication and auditing types of applications. Since they can store data, have a clock for time-stamping, and support for encryption and authentication, they are ideal for audit trails.

iButton Viewer 

With the TMEX Windows installations you get the iButton Viewer, an application for exploring iButton features from your PC. Before using the Viewer, you need only connect a serial port kit (DS9097U + DS1402D-DR8) or a parallel port kit (DS1410E + DS1402D-DB8 ) to your PC. iButton Viewer automatically finds iButtons or 1-Wire chips on your system and displays their serial numbers with a description of relevant features and menu options. As the iButton family grows, iButton Viewer's capabilities will be expanded to include the new iButtons. The OneWireViewer supports a wider array of iButtons and 1-Wire devices.

Java-powered cryptographic iButton 

A microprocessor and high-speed arithmetic accelerator generate the large numbers needed to encrypt and decrypt information. The Java-powered       iButton adds its complete cryptographic circuitry to a Java Virtual Machine (VM) that is Java Card™ 2.0-compliant, enabling the world's large pool of Java programmers to tap into a powerful development tools to get an application up and running quickly. The Java-powered iButton's greatest promise lies in its capacity to interact with Internet applications to support strong remote authentication and remotely authorized financial transactions. 

Applications Of Java Ring

    1)   Tracking Snail Mail
     2)  Sturdy Data Trackers 

Java Ring - The Tidal Wave Of Future

A Java Ring contains a processor compatible with Java Card 2.0, a Java Virtual Machine, sizeable RAM and ROM memory capacity, and a real-time clock. Most importantly, the iButton supports multiple applets that can be loaded dynamically. Freed from the usual constraints of connectivity, this ring lets you roam the world and bring with you your personal preferences--your computing environment, your medical information, your choices of colors or coffee.


Unknown said...

good. will you please send detailed information about it to my email id

Dipanjan said...

Nice information dude can you send me some more information on this topic i shall be gladful to you.

mithun said...
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