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| Mutek Transcom Ltd. Farleigh House, Frome road, Bradford on Avon, Wiltshire. BA15 1LE, UK. |
| Tel - |
| Local rate 0845 330 1241 |
| Nat'l +44(0)1225 866501 |
| Fax +44(0)1225 865083 |
| Email - |
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Introduction Bluetooth provides local radio connections between devices and peripherals close to you. These peripherals may include your PC or laptop, a mobile phone for internet access or remote headphone support and internet access via an access point. This concept is sometimes called a Personal Area Network or PAN. The sophisticated mode of transmission adopted in the Bluetooth specification ensures protection from interference and security of data.
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Bluetooth in Use -
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3-in-1 phone At home, your phone functions as a portable phone (fixed line charge). When you're on the move, it functions as a mobile phone (cellular charge). And when your phone comes within range of another mobile phone with built-in Bluetooth wireless technology, it functions as a walkie-talkie (no telephony charge). |
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Internet Bridge Use your laptop computer to surf the Internet wherever you are, and regardless of whether you're cordlessly connected through a mobile phone (cellular) or through a wire-bound connection (e.g. Dial-up modem, ISDN, LAN or ADSL). |
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Interactive Conference In meetings and conferences you can transfer selected documents instantly to selected participants, and exchange electronic business cards automatically, without any wired connections. |
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Ultimate Headset Connect your wireless headset to your mobile phone, mobile computer or any wired connection to keep your hands free for more important tasks when you're at the office or in the car.
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all your devices up to date Automatic synchronisation of your desktop, mobile computer, notebook, PDA and mobile phone. For instance, as soon as you enter the office the address list and calendar in your PDA will automatically be updated to agree with the one in your desktop, and vice versa.
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Some Specifics Bluetooth is designed to support up to 8 devices operating within a radius of 30 feet from each device, although in practice it may work further than this, up to 50 feet, so you may be able to do things that are outside of the specifications here. Bluetooth operates at 1 megabit per second for high speed communications. It uses the 2.4 — 2.483 GHz Industrial, Scientific and Medical band that remains free, and unlicensed throughout the world. Bluetooth devices send packets of data over 79 channels within the frequency spectrum at a random hopping speed of 1600 frequency hops per second. Each Bluetooth device has a unique address imprinted into the hardware at the time of manufacture, and is used to differentiate between devices communicating within a given environment. Bluetooth transmits data at a theoretical speed of 1Mbit/s, with 721Kbs available for data and 64Kbs for voice. Piconets The Bluetooth specification has two power levels defined; a lower power level that covers the shorter personal area within a room, and a higher power level that can cover a medium range, such as within a home. Software controls and identity coding built into each device ensure that only those units preset by their owners can communicate. The Bluetooth wireless technology supports both point-to-point and point-to-multipoint connections. With the current specification, up to seven 'slave' devices can be set to communicate with one 'master' device. Several of these 'piconets' can be established and linked together in ad hoc 'scatternets' to allow communication among continually flexible configurations. All devices in the same piconet have priority synchronization, but other devices can be set to enter at any time. The topology can best be described as a flexible, multiple piconet structure. Profiles Bluetooth is defined as a series of profiles for different types of device. Profiles are described as usage scenarios and include the communication speed, voice support, etc. For example, there are profiles for voice (e.g. remote headsets), data emulating a serial connection, network connections and others. Versions Right now there are 2 versions of Bluetooth called Bluetooth 1.0 and Bluetooth 1.1. With Bluetooth 1.0 users are required to "bind" with only one device at a time. With Bluetooth 1.1 users may communicate with up to 8 other Bluetooth 1.1 devices at the same time. Conclusion Bluetooth has now moved beyond the interesting novelty phase, and has become a useful technology supported by many major manufactures offering useable products at very reasonable prices. |
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