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BLUETOOTH Historical perspective

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... PDA's, stereo headsets, MP3 players, PCs, digital cameras ... Hooking up MP3 players wirelessly to other machines to download music. Applications(contd. ... – PowerPoint PPT presentation

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Title: BLUETOOTH Historical perspective


1
BLUETOOTHHistorical perspective
  • Deepthi Vemanath
  • Prof. Eric Rau
  • HIST 285

2
What is it?
  • Bluetooth technology is a low-power, low-cost
    wireless technology for short range radio
    communication between electronic devices like
    mobile phones, laptops, PDAs, stereo headsets,
    MP3 players, PCs, digital cameras and so on

3
Bluetooth Products
4
Who, What, Why??
  • In 1876, Ericsson initiated Bluetooth technology
    movement to eliminate wire clutter in homes and
    offices.
  • February 1998 - SIG

Lars Magnus Ericsson
5
History
  • Danish king Harald Bluetooth - united Denmark and
    Norway.
  • Ericsson mobile communications decided to name
    their technological invention with his name
    hoping that Bluetooth of today would unite the
    world of computers and telecom.

King Harald Bluetooth
6
Working of Bluetooth Technology..!
  • Core system protocols
  • Cable replacement (RFCOMM), Telephony
    control (AT), Adopted (TCP, IP), Radio
    protocol, Link control, Link manager, Logical
    link
  • control and adaptation protocol (L2CAP).
  • Main parts of the device
  • Channel manager L2CAP
  • Device manager Link manager
  • Link control RF

7
Bluetooth System Architecture
http//www.ensc.sfu.ca/ljilja/cnl/presentations/j
effrey/btpresentation/sld022.htm
8
Piconet
  • Piconet Collection of devices via Bluetooth
    technology in an ad-hoc fashion.
  • BEDD Bluetooth wireless communications "to scan
    strangers' phones for their personal profiles.
  • Umbrella project

http//ntrg.cs.tcd.ie/undergrad/4ba2.05/group3/ind
ex.html
9
Competitive Technology
  • Infrared (a standard for wireless connection).
  • Infrared needs the transmitter and the receiver
    ports to be in line-of-sight with each other.
  • The main drawback - it is a one-to-one
    technology, meaning, at a given time only two
    devices can be connected to each other.

10
Competitive Technology (contd.)
  • Bluetooth won over Infrared by allowing numerous
    devices to communicate without needing to be in
    line-of-sight.

www.jaht.com/application/bluetooth.jpg
11
Other side of the wall
  • In spite of all the advantages, there are also a
    few disadvantages of Bluetooth
  • It operates on a small bandwidth
  • Security Its discovery protocol allows devices
    to automatically find and start interacting with
    each other.

12
Applications
  • Making calls from a wireless headset connected
    remotely to a cell phone.
  • Eliminating cable linking computers to printers,
    keyboards and mouse.
  • Hooking up MP3 players wirelessly to other
    machines to download music.

13
Applications(contd.)
  • Calling home from a remote location to turn
    appliances on and off, set the alarm, and monitor
    activity.
  • Use e-mail while your laptop is still in the
    briefcase! When your laptop receives e-mail,
    you'll get an alert on your mobile phone. You can
    also browse all incoming e-mails and read those
    you select in the mobile phone's display.
  • And many more..

14
Future of Bluetooth
  • Tiny Bluetooth device monitors unborn babies
    heartbeat.
  • Musically Talented Mobile Phones

15
Conclusion
  • Thus, the Bluetooth specification is definitely
    real and is being widely adopted by various
    industries. The possibilities for new
    applications is very exciting with this versatile
    technology.

16
References
  • E. M. Graham, S. M. Petersen, D. K. Christo, and
    H. E. Fox Intrapartum Electronic Fetal Heart
    Rate Monitoring
  • and the Prevention of Perinatal Brain
    Injury. Obstet. Gynecol., September 1, 2006
    108(3) 656 - 666.
  • Getting Started With Bluetooth - Page 14by
    Madhushree Ganguli - 2002
  • Efficient polling schemes for Bluetooth
    picocellsA Capone, M Gerla, R Kapoor -
    Communications, 2001. ICC 2001. IEEE
    International , 2001 - ieeexplore.ieee.org
  • Juha T. Vainio (2000-05-25). "Bluetooth
    Security". Helsinki University of Technology.
    Retrieved on 2007-02-01.

17
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