Origin of the name "Bluetooth" "Bluetooth" was named after a Viking who was a Danish King-Harald Blatand. Blatand was loosely translated into “Bluetooth” But what could an ancient king name got to do with the wireless transferring technology? They may not have connection between each other, but it comes from an interesting origin: Harald Blatand is reported to have united Demark and Norway, and hence so as the wireless technology uniting people. Organization of Bluetooth In May of 1998, Intel、Ericsson、Nokia、IBM and Toshiba were formed as a Special Interest Group, named SIG, its goal is to set up a short range radio frequency wireless technology. By June of 1999, members of SIG had been increased to 751 members, which includes Compaq、Dell、Motorola、3Com、HP、Lucent、and Samsung, and they have all come to a consensus of royalty free standard in order to lower the technical cost for making it being widely used. What is Bluetooth? Bluetooth is a wireless transferring technology that enables short-range wireless connections between desktop and laptop computers, personal digital assistants (PDAs), cellular phones, printers, scanners, digital cameras and even home appliances. The principle of Bluetooth (a chipset) is to transfer information and voices at the frequency of ISM Band. Every Bluetooth technology devices do come with a standard address for you to connect one-to-one or one-to-seven (to form a Pico-net), with transferring range up to 10 meters (100 meters to follow), using low power radio. Bluetooth do not only possess high transfer rate of 1MB/s, it also could be encrypted with pin code. With hopping rate of 1600 hops per second, it’s difficult to be intercepted and are less interrupted by electromagnetic wave.