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8/2/2019 Bluetooth Presentation by Me
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PRESENTATION ON
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History
The Bluetooth Special Interest Group
(SIG) was founded by Ericsson, IBM,
Intel, Nokia and Toshiba in February1998 to develop as open specification for
short-range wireless connectivity.
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Timeline
1994Ericsson study complete/vision 1995Engineering work begins
1997Intel agrees to collaborate
1998Bluetooth SIG formed: Ericsson, Intel, IBM, Nokia andToshiba
1999Bluetooth Specification 1.0A SIG promotor group expanded: 3Com, Lucent, Microsoft &
Motorola
2000Bluetooth Specification 1.0B, 2000+ adopters
2001First retail products released, Specification 1.1 (JSR-82 Javafor Bluetooth API based on Spec v1.1)
2003Bluetooth Specification 1.2
2004Bluetooth Specification 2.0
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Who Started Bluetooth?
Bluetooth Special Interest Group (SIG)
-5 founding members
-Ericsson, Nokia, IBM, Intel & Toshiba
Promoters Group- 3COM, Lucent, Microsoft, Motorola
Now over 1900 members
Ericsson Mobile Communication
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What Is Bluetooth?
Designed to be used to connect both mobile devicesand peripherals that currently require a wire
Short range wireless radio technology
- operate range of 10 meters
Simplifying communications
between:
- devices and the internet
- data synchronization
USB without wires
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What is Bluetooth?
Bluetooth wireless technology is an openspecification for a low-cost, low-power,
short-range radio technology for ad-hoc
wireless communication ofvoice and dataanywherein the world.
Bluetooth Application Programming, p.3
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Technical meaning :--
Technically, is a chipto be plugged into computers, printers,
mobile phones, etc. Designed by taking
the information normally carried by thecable, and transmitting it at a special
frequency to a receiverBluetooth chip
which will then give informationreceived to these mobile devices.
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Main Strength:
Ability to simultaneously handle
both data and voice transmissions such
as headset for voice calls.
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Technical Features
2.4 GHz ISM Open Band
Globally free available frequency
79 MHz of spectrum = 79 channels
Frequency Hopping & Time Division Duplex (1600hops/second)
10-100 Meter Range
Class I100 meter (300 feet)
Class II20 meter (60 feet)
Class III10 meter (30 feet)
1 Mbps Gross Rate
Simultaneous Voice/Data Capable
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Key Features:
Robustness, low complexity, low power
and low cost
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Bluetooth Vision
Originally conceived as a cable replacementtechnology
Other usage models began to develop:
Personal Area Network (PAN)Ad-hoc networks
Data/voice access points
Wireless telematics
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Advantages (+)
Wireless (No Cables)
Low Power Consumption (1 Milliwat)
Industry Wide Support
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Disadvantages (-)
Short range (10 meters)
Small throughput rates- Data Rate 1.0 Mbps
Mostly for personal use (PANs)
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Bluetooth Components
Four major components:
Radio Unit (radio transceiver)
Baseband Unit (flash memory
& CPU)
Software Stack (driver
software)
Application Software (user
interface)
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How Does It Work?
Bluetooth is a standardfor tiny, radio frequency
chips that can be plugged
into your devices
These chips were designed to
take all of the information that
your wires normally send, and
transmit it at a specialfrequency to something
called a receiver
Bluetooth chip.
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Bluetooth Frequency
Has been set aside by the ISM for exclusive use of
Bluetooth wireless products
Communicates on the 2.45 GHz frequency
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Avoiding Interference : Hopping
Bluetooth uses a technique called spread-spectrumfrequency hopping.
In this technique, a device will use 79 individual,
randomly chosen frequencies within a designated range
Transmitters change frequency 1600 times a second
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Wireless connectivity over Bluetooth
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Bluetooth Products 1
Bluetooth-enabled
PC Card
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Bluetooth Products 4
Bluetooth-enabled
Head Set
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Other Products
2004 Toyota Priushands free calls
Toshiba Washer & Dryerdownloads the
washer/dryer software for new clothes!
Nokia N-gage Digital Pulse Oximetry System
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Bluetooth Specifications
Each channel is divided into time slots 625
microseconds long
Data in a packet can be up to 2,745 bits in length
Packets can be up to five time slots wide
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File Transfer
Basic transferring of files betweencomputers
File type does not matter
Human interference does not degradetransfer rates
Movement between Bluetooth units does
alter transfer rates
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Data Transfer
Transfer Rate vs. Distance
0
5
10
15
2025
30
35
0 25 50 75 100 125 150
Distance (ft)
TransferRate
(bps)
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Target Markets Telecommunications
Networking
Computing
Industrial
Medical
Vertical Markets (Hotels,Airports,Healthcare)
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The End
THANKS FOR ATTENDING
THIS PRESENTATION
BY :--
AMIT BHUKAL(9034610883)