The goal is to achieve the highest data transmission speed of 1Mbps (effective transmission speed of 721kbps), the maximum transmission distance of 10 meters, the user does not have to be permitted to use the 2.4GHz ISM (Industrial, Scientific, Medical) band, on which the establishment of 79 channels with a bandwidth of 1MHz, with the frequency of 1,600 switching per second, the hobbing () method. Hobbing) way of spectrum diffusion technology to realize the sending and receiving of radio waves. This is the origin and characteristics of Bluetooth technology. Devices that communicate using Bluetooth technology are divided into a "calling party" that decides the frequency of the hobbing mode and its communication counterpart, the "receiving party". The calling party can communicate with 7 receiving parties at the same time. Therefore, it is possible to connect the caller and seven recipients***8 devices into a subnet called Piconet (sawtooth network), and the recipients in a Piconet can be the recipients of more than two Piconets at the same time. in July 1999, Bluetooth announced the official specification of BluetoothVersion 1.0, and cell phones and notebook PCs complying with this specification will be available by the end of 1999 or 2000, and will be available by the end of the year. laptops will be available in late 1999 or early 2000. The number of companies claiming to productize Bluetooth technology is growing, with membership in the Bluetooth standardization group, the BluetoothSIG (Special Interest Group), now numbering more than 800.
"Bluetooth" technology is designed to smart cell phones and laptops, PDAs, and a variety of digital information devices can no longer use cable, but a small, low-cost wireless communications technology to connect up; and then form a personal side of the network, so that a variety of information technology within the scope of the mobile portable devices can be seamlessly realize the resources **** enjoy. According to foreign authorities expect, a few years later, the world will have hundreds of millions of digital cell phones, PCs and a variety of information equipment will be based on Bluetooth technology wireless interface as a standard configuration. Bluetooth technology will be in a variety of areas of rapid development, its typical application environment, including wireless office environment (Wireless Office), the automotive industry, medical equipment, etc. Bluetooth will play an important role in people's daily lives and work, the market potential is huge, the technology is becoming the 21st century investment hot spot.
The so-called Bluetooth (Bluetooth) technology, in fact, is a short-range wireless communication technology, the use of "Bluetooth" technology, can effectively simplify the Pocket PCs, notebook computers and cell phones and other mobile communication terminal equipment, communication, but also to successfully simplify the above equipment and the Internet communication, so as to simplify the above equipment and the Internet communication. It can also successfully simplify the communication between these devices and the Internet, thus making the data transmission between these modern communication devices and the Internet more rapid and efficient, and widening the way for wireless communication. To put it plainly, it is the Bluetooth technology that makes modern some easy to carry mobile communication equipment and computer equipment, do not have to resort to cables on the network, and can realize the wireless Internet, and its actual scope of application can be expanded to a variety of home appliances, consumer electronics products and automobiles, and other information appliances, to form a huge wireless communication network.