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Read e-book online Bluetooth for Java PDF

By Bruce Hopkins

Bluetooth is a expertise for instant verbal exchange that capabilities in a lot an analogous approach that home/office laptops connect with the web. it's in general used for brief burst communications rather than a continuing connection. due to this distinction, Bluetooth is extra mostly came upon supported in instant telephones and private units.

Bluetooth for Java isn't really an summary of Bluetooth. within the booklet, Bruce Hopkins and Ranjith Antony describe find out how to improve instant Java functions utilizing Bluetooth for quite a few systems. This comprises an API review of the Java library, improvement of Bluetooth-based companies, highlights of protection issues, and walkthroughs for improvement with the various varied instruments to be had. courses should not simply J2ME (micro devices)-based, yet can also be for J2SE (client/desktop).

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One of the goals of this profile is that a Bluetooth-enabled device that conforms to the HID Profile should run for three months on three MA alkaline batteries. Profile Interdependencies The profiles are heavily dependent upon each other, and you should already know that every profile depends upon the Generic Access Profile. The Bluetooth profiles were designed to be building blocks, where a higher level profile is dependent upon the functionality of the lower profiles to exist. Take a look at Figure 2-9 and see how the Bluetooth profiles are dependent upon each other for functionality.

21 Chapter 2 A Bluetooth vendor does not need to implement all the Bluetooth protocol layers into its product in order to be Bluetooth compliant. For instance, a Bluetooth cordless phone may very well only have HCI, SDp, L2CAP, and rcs implemented into its stack. That's perfectly fine because a cordless phone may not need any extra functionality. NOTE Bluetooth Network Encapsulation Protocol (BNEP) The Bluetooth Network Encapsulation Protocol is a layer in the Bluetooth stack that allows other networking protocols to be transmitted over Bluetooth, namely Ethernet.

ServiceRecord The Service Record interface describes characteristics of a Bluetooth service. DataElement The DataElement class defines the various data types that a Bluetooth service attribute value may have. DeviceClass The DeviceClass class represents the class of device (CoD) record as defined by the Bluetooth specification. DiscoveryAgent The DiscoveryAgent class provides methods to perform device and service discovery. LocalDevice The LocalDevice class represents the local Bluetooth device.

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