What is this so called Bluetooth? Bluetooth is a short-range and low power wireless technology originally developed for exchanging data over short distances from fixed and mobile devices, creating personal area networks. It was originally conceived as a wireless alternative to data cables
Back in Time 2 The word "Bluetooth" is taken from the 10th century Danish King Harald Bluetooth, he had been influential in uniting Scandinavian tribes into a single kingdom. Bluetooth was named so because this technology is able to unite differing industries such as the cell phone, computing, and automotive markets.
Bluetooth was invented in 1994 by Ericsson. The company later started working with a larger group of companies called the Bluetooth Special Interest Group, or "SIG," to develop the technology into what it is today. Timeline
In 1999, Bluetooth 1.0 was released In 2004, Bluetooth 2.0 was released. In 2009, Bluetooth 3.0 with enhanced data rate (EDR) is released. In July 2016, Bluetooth 5.0 Core Specification is released. Timeline
Telephones Headsets Computers Computer accessories LAN peripherals Multimedia Devices Applications of Bluetooth
How does Bluetooth work? When device is put in discoverable mode, each device only knows about itself.
How does Bluetooth work? INQUIRY identifies who else is in the range
How does Bluetooth work? PAGING creates a link between a device
How does Bluetooth work? EXPANDING creates link between following devices
Different phases of Bluetooth Hands free kit connection Discovery Pairing Connection Data Synchronisation Hello, I am looking for bluetooth devices Hello, I am an available Bluetooth device
Discovery Pairing Connection Data Synchronisation What is your authentification Code ? 1234… This code has to be typed on your keyboard Ok ! Now we are paired 20 Different phases of Bluetooth Hands free kit connection
Discovery Pairing Detection of Profiles Connection Data Synchronisation Ok, we are now connected in Hands-free. I can do hands-free. 22 Different phases of Bluetooth Hands free kit connection
Discovery Pairing Detection of Profiles Connection Data Synchronization To complete my phonebook, I have to synchronise with your contacts Ok, I transfer my 163 contacts. 23 Different phases of Bluetooth Hands free kit connection
Advantages & Disadvantages of Bluetooth Advantages : It is cheap. Easy to install and use. It makes connecting to different devices convenient. It is wireless. It is free to use if the device is installed with it.
Disadvantages : It can be hacked into. It only allows short range communication between devices. It can only connect two devices at once. It can lose connection in certain condition. Advantages & Disadvantages of Bluetooth
Conclusion A new global standard for data and voice Eliminates Cables. Low Power, Low range, Low Cost network devices.. Further improvements are planned to be made in Data Rates Power Reduction Range