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- Bluet oot h: Bluetooth adopts the Wireless LAN and TDD( Time Division
Duplex) t r ansmission on 2.4GHz f r equency ISM( Indust r ial Scient if ic
Medical) band. Anybody can use the 2.4GHz ( 80MHz) frequency without
approval fee of charge. And the Bluetooth means the short distance
communication international standard protocol ( Communication Regulation)
cont rolling t he t ransmission power in 100mW or 1mW t o prot ect t he
mutual interference.
- Pair ing is the preparation and registration process enables a unique
wireless link between headset and Bluetooth device.
- Pr of i l e is t he communicat ion pr ot ocol for t he Bluet oot h device t o
communicate with another device. The Bluetooth device supports many
profiles. Most of devices released in the market only support Headset
profile and some of them supporting Hands- free and Headset profile. The
Stereo profile ( MP3 play) has been recently supported by the mobile
device released from 2004 2nd half.
- St ereo Headset ( A/ S) profile is the function to control the music play
the Bluetooth main device like Bluetooth mobile phone with Headset only.
- Regist rat ion St and- by is the stand- by condition to link to the Bluetooth
main device for the first time and the Headset LED continuously blinks.
- Regist rat ion Process is to set the radio frequency to connect wirelessly
two devices. ( Encrypted wireless connection process)
- Regist rat ion complet ion is the registration finish ( frequency connection
status) through the exchange of the password between two devices.
- Password Pin code ( 0000) : In the first registration with Bluetooth main
device, the password pin code is required by main device and the pin
code four digit ( 0000) makes the registration completion.
- Connect ion is the connection status to exchange the data between two
devices.
- Connect ion complet ion st at us:
Through t he regist rat ion process t he
headset is connected to the other device and ready for the cal and music
play. The headset blinks twice the green LED 5 seconds interval.
T er m Ex p l an at i o n
7
