1. Bluetooth Ville Jounio Dap02s

2. Intoduction to Bluetooth Brief history How does it work? Other wireless methods Bluetooth devices today Future of Bluetooth

3. Definition ”wireless short-range communications of data and voice between both mobile and stationary devices.” www.symbian.com

4. Mobile phones Computers MP3 Players PDAs Some devices with Bluetooth

5. Where does the name come from? The 10th century Danish King Harald Blatand United tribes in Denmark, Norway and Sweden

6. Logo Designed by a Scandinavian company Combination of runic characters H and B

7. Timeline

13. SIG SIG = Special Interest Group Global headquarter in Overland Park (Arkansas, USA) Driving the development of Bluetooth Promoter members -Board of Directors, Bluetooth Qualification Review Board Associate members Adopter members

14. How Bluetooth works? Frequency 2.4 gHz (ISM) Sends out weak signals (1milliwatt) Range 10m 721 Kbp/s Half-duplex Full-duplex

15. Interference What about interference when using many devices in the same area? Spread-spectrum frequency hopping 1600 times a second

16. Bluetooth networks Personal-area network (PAN, piconet) Devices in the net use frequency hopping the same way Master, slave Up to 8 devices in one piconet Several piconets form scatternet

17. Piconet

18. Scatternet

19. Why use Bluetooth? Cheap solution Less cables (wireless) Automatic (no setup) Can be applied to almost anywhere Trendy

20. Other wireless methods Infrared UWB (Ultra Wideband) ERF (Embedded Wireless Platform)

21. Infrared Information transfer via light Must have a line of sight Used in remote controllers etc. Cannot send data to multiple devices at the same time Reliable and low cost

22. UWB UWB 480 Mbps No single specification Highest speed only within 1m

23. ERF Developed by a finnish company Highly configurable Range 10-20m 256 kbps (theoretical max of the net) Low cost Low power consumption (2 AA batteries, can work upto 2-3 years) Espotel

24. Marketing Bluetooth is sexy! Implemented in trendy and fancy products Most visible products MP3 players, cell phones and gaming devices Used everywhere – at home, work, hobbies etc. ”Best thing ever happened to you”

25. Products using Bluetooth Zodiac Diva Gem GB4000 Nokia N-Gage Nokia Image Viewer Crabat Mobile Media Viewer

26. Diva Gem GB4000 MP3 Player, radio and recorder Bluetooth Incoming calls Dialling using voice commands Daisy Multimedia

27. Bluetooth goodies wrist watch t-shirts caps bags cups

28. Bluetooth 2.0 + EDR Specification launched November 2004 EDR (Enhanced Data Rate) Faster file transfer 2.1 Mbps Longer battery life Backwards compatible

29. Future Bluetooth 2.0 devices on market early 2005 150 million devices in the end of 2004 470 million devices in the end of 2006 2005 concentrated on security issues and power consumption 2006 multi-cast, improved range (100m)

30. Thank you for listening! Now it’s opponent’s turn!