2. What is BT?
Objectives of BT
Overview of BT History
How BT works?
Different Phases of BT Hands free kit connection
Characteristics of BT
Classes of BT
Applications of BT
Advantages of BT
Disadvantages of BT
Future of BT
Conclusion
3. “Bluetooth is a wireless technology that is mainly used
for transfer data between different electronic devices for
ad-hoc wireless communication of voice and data
anywhere in the world.”
5. Overview of Bluetooth History
Why this name?
1.It was taken from the 10th century Danish King
‘Harald Bluetooth(940-981)’ who was famous for
uniting Denmark and Norway into a single nation.
2. He was also successful in converting all the Danes to
Christianity.
6. When does it appear?
1. In 1994, Jim Kardach, an Intel engineer working on wireless
technologies. Kardach took on the role of a cross-corporate
mediator dedicated to bringing various companies together to
develop an industry-wide standard for low-power, short-range
radio connectivity.
2. Together with 4 other companies (IBM, INTEL, TOSHIBA,
NOKIA) it formed a SIG. (Special Interest Group)
3. The project is named as Bluetooth.
7. Words of Kardach after uniting
all the companies:
Bluetooth was borrowed from the
10th-century, second king of
Denmark, King Harald Bluetooth;
who was famous for uniting
Scandinavia just as we intended to
unite the PC and cellular industries
with a short-range wireless link.
8. Definition
“Two or more Bluetooth units
sharing the same channel”
One device acts as a master and the devices connected
to it act as slaves.
Slaves can not directly send data to each other.
In effect, the master acts as a switch for the piconet
and all traffic must pass through the master.
There can be up to 7 active slaves in a piconet but only
one master.
10. DEFINITION
“A set of two or more interconnected piconets form scatternets.”
A Bluetooth unit can be a slave in two or more piconets, but it can
be a master in only one.
Devices that participate in two or more piconets may act as
“gateways.”
Bluetooth units can only transmit and receive data in one piconet at
a time.
Piconets may be identified by the master's identity and clock.
Devices give notification of inactivation to master before becoming
inactive in its piconet for a finite length of time.
12. Different phases of Bluetooth
Hands free kit connection
Discovery
Pairing
Detection
of Profiles
Connection
Data
Synchronisation
Hello, I am
looking for
bluetooth
devices
Hello, I am
an available
Bluetooth
device
13. Different phases of Bluetooth
Hands free kit connection
Discovery
Pairing
Detection
of Profiles
Connection
Data
Synchronisation
What is your
authentification
Code ?
1234…
This code has
to be typed on
your keyboard
Ok !
Now we are
paired
14. Different phases of Bluetooth
Hands free kit connection
Discovery
Pairing
Detection
of Profiles
Connection
Data
Synchronisation
What type of
profile do you
support ?
I can do headset
and hands-free.
What about you ?
15. 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.
16. 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.
17. Characteristics of Bluetooth
Bluetooth stands for Short-range transmission
of digital voice and data.
Bluetooth used a Radio Technology called
Frequency Hopping Spread Spectrum.
Frequency Range: 2200MHz – 2400 MHz
Vanishes the need of chord and wire.
Range of Connection : 10 m – 100 m.
Supports data rate of : 1Mb/s.
18. Classes of Bluetooth
There are three classes of Bluetooth devices.
Class 3 Radio: have range up to 1 meters or 3 feet.
Class 2 Radio: most commonly found in mobile devices – have
range of 10 metes or 30 feet.
Class 1 Radio: used primarily in Industrial use cases – have
range of 100 meters or 300 feet.
21. Eliminates wires
Facilitates Data and Voice Communication
Offers formation of Ad hoc networks
Standardized protocol
Free of charge
Easy to use
Low power and consumes less battery
Stationary and mobile environments
22. Relatively short range
Less secure
Interference with other devices
Mediocre Data rates
Bluetooth internet connection gets slow sometimes
More battery power when Bluetooth is enable on
the phone all day
24. Future Of Bluetooth
Bluetooth has a good future ahead because it
meets a basic need of connectivity.
Latest version of Bluetooth are improving both
its security and capabilities.
New versions of Bluetooth technology will
meet the high-speed and large range.
Many companies are designing impressive
Bluetooth applications in demand.
25. CONCLUSION
Bluetooth is a short range radio link wireless
technology used to connect various device by a
invisible link getting rid of wires.
Bluetooth seems to have a bright future after
reviewing its benefits and wide use.
26. Last but not the least,
WHENEVER THINK
OF
WIRELESS,”THINK
BLUETOOTH”, this is
the best way of
