Bluetooth

The word Bluetooth ancient Norse or Danish Blátönn Blåtand, the tenth-century king of Denmark named Harald 1 , the various tribes of Denmark as a unified empire , the English adaptation . The implication is that Bluetooth communications protocols, uniting them into one universal standard of what is served .Bluetooth logo Germanic symbol (Hagall) and (Berkanan) is a carve of confluent .Bluetooth is a radio technology that uses frequency - hopping spread spectrum , which adds to the data being sent nine - picked up the pieces 79 which transmits frequencies . In its basic mode , the modulation Gaussian Frequency Shift Keying (GFSK) is . The 1 Mb / s gross data rate can achieve .Both stationary and mobile digital voice and data between electronic devices interchange wireless protocol called Bluetooth is used for . Using Bluetooth wireless personal area networks that operate within a narrow range can be established .Bluetooth , safe and non- registered global industrial , scientific and medical (ISM) 2.4 GHz short - range radio frequency bandwidth using mobile phones, telephones , laptops , personal computers , printers , global positioning system (GPS) receivers, digital camera and video game consoles establishing contact and information exchange between devices - provides a way to provide . The Bluetooth specifications are developed and the Bluetooth Special Interest Group (SIG) has been by .A primary ( master ) Yuktiadiktm seven other devices with Bluetooth signals interchange can . Bluetooth devices are extremely low energy requirements . ( A thousandth of a watt or part watt ml ) . Bluetooth is typical of several months after putting the batteries in the mouse, it does not need to changeAchieving maximum capacity MW class (dBm) Range (approx. )Class 1 100 mW (20 dBm 100 metersClass 2 2.5 mW (4 dBm) 10 mClass 3 1 mW (0 dBm) 1 meter