Below, you'll find several specifications for the
well known Bluetooth:
1. Throughout the United States and even Europe,
the range of frequency is two,400 - Two,483.five MHZ, with
79 1-MHz RF (radio frequency) channels. The
frequency range in Japan is 2,472 to 2,497 MHz with
23 1-MHz RF channels.
2. A data channel of Bluetooth randomly hops 1,600
times per second between the 79 RF channels.
3. Each Bluetooth channel is divided into time
slots, with each one being 625 microseconds long.
4. A Bluetooth piconet has one master and up to
seven slaves. The master will transmit in even
time slots, while the slaves will transmit in weird
time slots.
5. The data in a single packet can be up to 2,745
bits in length.
6. Currently, there are two types of data transfer
between devices - SCO (synchronous connection
oriented) and ACL (asynchronous connectionless).
7. In a Bluetooth piconet, there can be up to
three SCO links containing 64,000 bits per second
with each one. To help avoid collision and timing
problems, the links of the SCO will use reserved
slots set up by the master.
8. A master can support up to three SCO links
with either one, two, or even three slaves.
9. The slots not reserved for the SCO links can
be used for ACL links.
10. A single master and slave can have one ACL
link.
11. ACL is either master to one slave (point to
point) or it broadcasts to all of the slaves.
12. The ACL slaves will only transmit when it has
been requested by the master. If the master doesn't
make the request, the ACL slaves won't transmit
anything at all.
Bluetooth And Infrared
These parts will communicate through light beams, lasers, radi...
bluetooth-and-infrared.php
Bluetooth Applications
1. Wireless networking between laptops & desktop computers, or desktops that are ...
bluetooth-applications.php
Bluetooth Basics
The key features offered by Bluetooth include low power & low cost. Th...
bluetooth-basics.php
Bluetooth Definition
The technology of Bluetooth was primarily designed to support simple wireless networkin...
bluetooth-definition.php
Bluetooth Glossary
two in 1 handset The situation where a subscri...
bluetooth-glossary.php
Bluetooth In Action
Now, Bluetooth is facing stiff competition from new wireless technology. Referred to as UWB or Ultra Wid...
bluetooth-in-action.php
Bluetooth Operation
Many devices that you already known and use take advantage of this frequency band. Ga...
bluetooth-operation.php
Bluetooth Profiles
The profile will also define the parameter ranges for each protocol....
bluetooth-profiles.php
Bluetooth Security
The good news for Bluetooth users is that the security scares,...
bluetooth-security.php
Bluetooth Technical Operations
Current prototype circuits are contained on a board that is 0.nine cm square, with a mu...
bluetooth-technical-operations.php
Bluetooth Technology Intro
Capabilities ...
bluetooth-technology-intro.php
Bluetooth Versions
Since the technology of Bluetooth was introduced in 199...
bluetooth-versions.php
Bluetooth Wireless Networking
The class two devices are lower power, offering up to Two...
bluetooth-wireless-networking.php
Choosing A Bluetooth Headset
Bluetooth headsets can never be as small or as light as wired headsets, simply because it needs to inc...
choosing-a-bluetooth-headset.php
Connecting Many With Bluetooth
A good example is Bluetooth for cell phones. It enables mobile users to connect to their hands free headse...
connecting-many-with-bluetooth.php
How Bluetooth Works
To overcome this challenge, Bluetooth employs a quickly frequency hopping...
how-bluetooth-works.php
Key Learning Points Of Bluetooth
1. Bluetooth is an energy efficient, low overhead communication protocol that's ideal for inter...
key-learning-points-of-bluetooth.php
The Bluetooth Solution
Bluetooth is a networking standard that will work on two levels: ...
the-bluetooth-solution.php
The Future Of Bluetooth
Since the forming of the original group, more than 1,800 manufacturers around the world have joined the ...
the-future-of-bluetooth.php
Using Bluetooth
Bluetooth also offers interoperability, meaning that you can use your portab...
using-bluetooth.php
10 Benefits Of Bluetooth
1. Wireless ...
10-benefits-of-bluetooth.php
Advantages And Disadvantages
In the key marketplace, of wireless and handheld devices, the closest competitor to Blue...
advantages-and-disadvantages.php
Bluetooth And Apple
Full support ...
bluetooth-and-apple.php