
The Bluetooth specification, which describes a way for electronic devices to communicate with one another at close range by way of radio signals, has great potential. The open standard promises to make mobile telephones, personal organizers, and digital cameras wireless and far easier to use. In Bluetooth Revealed, a couple of experts who helped hammer out the Bluetooth specification (version 1.0B, specifically) take a shot at elaborating upon the contents of the standards documents. They also share some of their imaginings about how Bluetooth connectivity might be put to use. The result of their efforts is a surprisingly readable book that should fit the needs of hardware and software developers who plan to support the Bluetooth platform.
After some discussion of wireless devices and the generalities of the Bluetooth specification, the authors approach their subject in progressively greater detail, defining terms and referring to conceptual diagrams as they go. Emphasizing protocols that are unique to Bluetooth communication (such as RFCOMM, which allows applications to treat a radio link just like a hard-wired serial port), the authors show exactly how Bluetooth devices arrange themselves into wireless networks. Then, they explain how these networked devices exchange commands, files, and multimedia streams. They give fair hearing to the specification's shortcomings, too; noting, for example, that it's good for sharing voice signals among devices, but not so good for shar
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