Systems Management

As it is known, Bluetooth headset is a wireless voice transmission. This technology is based on wireless headset extension. It matches to the Bluetooth multimedia with the personal area network. Nowadays, Bluetooth technology and Bluetooth products are becoming mature gradually. The Bluetooth products has increased market share. The Bluetooth headset will continue to be technically improved. It will be made as a kind of major personal network multimedia product. Bluetooth headset can be used to mobile phones, PDA, cordless phones, and other automotive hands-free tools. Telephone terminals also take Advantage of Bluetooth headsets.

The design of a Bluetooth headset supports Bluetooth specification version 1.2. The transmission distance is 10 m. The transmission rate is up to 723.2 kb/s. and it has low power consumption. There is almost no radiation when we are using the Bluetooth headsets. They also have other technical advantages and benefits.

Bluetooth head is low-cost. It adapts short-range wireless connectivity technology. It is initiated by five companies. They made a global wireless technology standard. That is a global norm about wireless data and voice communication. The Bluetooth headset is based on short-range wireless connectivity. It is fixed with communication equipment and mobile devices. Bluetooth headset can establish a special connection environment. Its essence is to establish a common wireless air interface for the Bluetooth headset. It can control software standards to achieve equipment.

The specification of the Bluetooth headset is including two parts. They are protocol and application of norm. Protocol defines the functional elements of their work. The Bluetooth protocol architecture is divided into four layers, namely, the core protocol layer, cable replacement protocol layer, protocol layer. But the call control protocols are adopted by other layers. The application specification is elaborated in order to achieve a specific application model. There is co-operation between the layers of protocol mechanism. A more typical application specification has dial-up networking. It includes LAN access and file transfer. Bluetooth protocol stack is shown in Figure.

The hardware signal processing and control circuit part is based on the ARM7. It is the product of Zeevo Company. ZV4301 processor adds an integrated RF in a single-chip transceiver. The digital signal processing and flash memory chips are expanded in order to achieve the required results.

Bluetooth headset allows the user to get rid of the shackles of cable. It provides the free space in the larger conversation. As a result of a dedicated sound chip and the standard audio rate, it will be more advanced in the future. The advanced Signal processing technology enables CD quality sound for Bluetooth headset. Those factors make the possibility that Bluetooth headset truly replace the wired headset in the future.