[share_ebook] Bluetooth Demystified

图书介绍

Wireless communication slowly is becoming reality. In a wireless world, a printer is installed automatically after it is turned on; keyboard and mouse cables no longer become hopelessly tangled; Palm Pilots and mobile telephones automatically synchronize and communicate. Providing this sort of seamless, wireless communication--at a low cost--is the goal of Bluetooth technology. Devices that support Bluetooth automatically communicate with one another when they come within a 30-foot range of each other. If devices are compatible and properly authenticated, they start communicating, up to a maximum bandwidth of 1 Mbps. Although Bluetooth has a relatively short range and limited bandwidth, it requires very little power and is theoretically inexpensive. This makes it the ideal technology for portable devices that run on batteries, as well as devices that don't require massive bandwidth.