Below, you'll find a list of the most used terms in
Bluetooth technology. They can serve as a look up,
or to help you learn more about Bluetooth terms in
2 in 1 handset
The situation where a subscriber's handset is acting
as a remote handset to a base unit that provides a
Third generation, referring to the next generation
of digital phone technology.
A wireless LAN specification defined by the IEEE.
Each base band packet will start with an access code,
which can be one of 3 types - CAC, DAC, and IAC.
Asynchronous Connectionless Link. This is one of the
two types of data links that are defined for Bluetooth.
Authenticated Ciphering Offset.
During the active mode, the unit will actively
participate on the channel. The master will schedule
the transmission based on traffic demands from the
The process of verifying who is at the opposite end
of the link.
A device whose identity has been verified during the
lifetime of the current link based on the
This describes the specification of the digital
signal processing aspect of the hardware - the
controller - which carries out the baseband
Abreviation of baseband.
Bit Error Rate.
The above is more of an intro to the terms that are
used with Bluetooth. Bluetooth currently has hundreds
of devices, making it the best wireless solution in
the world. With more coming out every day, you can
bet that Bluetooth will be around for many years to
If you are new to Bluetooth, the terms used can be
very helpful. There are hundreds of glossary terms
that apply to Bluetooth, many of which describe
shortcuts to common terms. You can learn a lot by
reading over the meanings, especially if you have
never used Bluetooth technology before.
Those of you who have experience with Bluetooth,
can look over the glossary of terms to brush up
on your knowledge or just check out what an unfamiliar
term actually means. Nothing is complicated with
the meanings, although they make take some getting
Once you have been around Bluetooth for a while,
you'll find yourself right at home with the terms
and meanings to the technology. All you need to do
is play around with it, and read books or manuals
whenever you get the chance. Before you know it,
you'll be a professional in the vast world of
With Bluetooth being very popular with wireless, it's
no wonder there are many applications available for
the technology. Below, you'll find the applications
1. Wireless networking between laptops and desktop
computers, or desktops that are in a confined space
and little bandwidth is needed.
2. Peripherals such as mice, keyboards, and printers.
3. Cell phones with Bluetooth technology have been
sold in large numbers, as they are able to connect to
computers, PDAs (Personal Data Assistant), and various
other devices. The standard also includes the
support for more powerful and longer range devices.
4. The transfer of files, images and MP3, between
5. Certain MP3 players and digital cameras to
transfer files to and from computers.
6. Bluetooth technology headsets for smart phones
and cell phones.
7. Data logging equipment that transmits data to
a computer via Bluetooth technology.
8. Sony Playstation 3 and Nintendo Revolution will
both use Bluetooth technology for their wireless
For Bluetooth, there are literally hundreds of
different applications and devices available for you
to use or purchase. As you may already know,
Bluetooth is the most popular wireless technology
in the world. It's very reliable, very dependable,
and very hard to crack into.
There are many other applications for Bluetooth in
development now, many of which plan to take the
wireless age to the next level. Video game systems
are using Bluetooth technology as well, for their
wireless controllers. This is great news for gaming
fans, as Bluetooth offers the best in wireless
If your curious about applications for Bluetooth
that are still in development, you can search on
the internet. You can find all sorts of information,
especially when it comes to Bluetooth. As the
future arrives, you can expect Bluetooth to bring
bigger and better things.
Bluetooth Wireless Networking
Bluetooth technology offers three different types
of defined ranges, based on output ranges. Class
1 devices are the most powerful, as they can have
up to 100 mW of power, with a regular antenna
giving them a range of around 130 - 330 feet.
The class 2 devices are lower power, offering up
to 2.5 mW of power. A regular antenna will give
them a range of around 50 - 100 feet. Class 3
devices use even less power, up to 1 mW of power
to be exact. With a regular antenna, they will
have a range of around 16 - 33 feet.
Even though you may not realize it, Bluetooth
wireless technology has never been intended for
anything other than short distance types of
communication. With Bluetooth wireless, the short
range is actually a benefit.
For one, the short range will reduce the change of
interference between your devices and those that
belong to others who are nearby. Overall, this
is a basic type of security, designed to protect
you and your devices.
Secondly, the lower power used for short range
means a longer battery life. Most Bluetooth
devices will get their power from a battery,
meaning that anything you can do to lengthen the
battery life is very important.
The wireless networking offered by Bluetooth is
actually among the best, even though it uses
short range communication. Bluetooth is used
with wireless controllers, the internet, and
even wireless headsets.
For the best in short range technology, Bluetooth
is extremely hard to beat. If you've never tried
Bluetooth before, now is the time. It's the best
with wireless networking, especially for those
who enjoy hands free talking on their cell phone.
Connecting Many With Bluetooth
Constantly evolving, the technology of Bluetooth
started off as a basic wireless connection standard
but has since then been adapted and proven with many
different uses and functions.
A good example is Bluetooth for cell phones. It
enables mobile users to connect to their hands free
headset without using wires. Bluetooth technology
will also allow mobile phone users to connect
with their hands free kit as well.
Another handy use of Bluetooth is file sharing. It
allows the sharing of files between two cell phones,
between a cell phone and computer, which makes the
sharing of files a snap. If you have a cell phone
and computer, you can easily transfer data between
Say for example you wanted to put an MP3 on your
phone from your computer you could do it easily
with Bluetooth. All you would need is a Bluetooth
adapter for your computer. It doesn't stop with the
swapping of files either,as you can use your computer
and phone to synchronise phone books, send SMS messages,
and much more.
Although Bluetooth may be dandy for cell phones,
it also comes in handy for the home office as well.
Utilizing Bluetooth is a great way to set up a
home office - two computers, a printer, and even a
scanner. They all can be connected using Bluetooth
technology with effective ranges of up to 10 meters.
The technology and devices of Bluetooth will be
around for years and years to come. As years go
by, Bluetooth will provide even better wireless
solutions for different applications. Even though
Bluetooth has a short range, it has that short
range for a reason. Bluetooth is easily the best
in wireless technology - which it continues to
prove time and time again.
The profile found in Bluetooth will describe how
the technology is used. Profiles can be best
described as vertical slices through the protocol
stack. It will define options in each protocol
that are mandatory for the profile.
The profile will also define the parameter ranges
for each protocol. The concept of the profile is
used to decrease the risk of interoperability
problems between the different products. These
profiles won't normally define any additions to
the Bluetooth specification, which is why you can
add new profiles where you need them. The
Bluetooth underlying technology is the same, only
the specific method that it's used is defined.
Generally speaking, all profiles of Bluetooth are
based on the GAP (Generic Access Profile). There
are 9 profiles that fall in the GAP category, and
they are below:
1. AVRCP - Audio/Video Remote Control
2. ESDP - Extended Service Discovery Profile
3. CIP - Common ISDN Access Profile
4. PAN - Public Area Network Profile
5. HCRP - Hardcopy Cable Replacement
6. GAVDP - Generic Audio/Visual Distribution
7. A2DP - Advanced Audio Distribution Profile
8. VDP - Video Distribution Profile
9. HID - Human Interface Device Profile
To put it another way, usage models will describe
Bluetooth device applications and the associated
profiles that are used. The usage model focuses
mainly on three categories - voice/data access points,
peripheral interconnects, and PAN (Personal Area
The voice and data access points involve connecting
computing devices to communicating devices through
a wireless link. This way, data can be transferred
in a wireless manor, without the need of cables or
other types of connectivity.
PAN is another very important usage model with
strong appeal to business customers. Bluetooth
networks are easy to set up in virtually any type
of environment. An example would be meeting
others at a trade show.
Instead of having contact information beamed via
infrared, business cards can quickly and easily be
transferred via Bluetooth wireless. The fact is
that many documents can be exchanged this very
same way - making the uses and possibilities
The Bluetooth profile is very important to the
specification, as it enables you to do so much
more. You can use peripherals and devices with
the profiles, and virtually anything else that you
As Bluetooth expands and gets bigger and better,
you can count on the profiles to expand and get
even more functions. If you have experience with
Bluetooth profiles, you should know exactly what
they are and what you can do with them. If not,
all you need is a Bluetooth device - and a vivid
Below, you'll find several specifications for the
well known Bluetooth:
1. Throughout the United States and even Europe,
the range of frequency is 2,400 - 2,483.5 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 odd
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
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.
The technology of Bluetooth wireless is a short
range communications method intended to replace
the cables that connect portable or fixed devices
while maintaining the highest levels of security.
The key features offered by Bluetooth include
low power and low cost. The specification in
Bluetooth defines a uniform structure for a wide
range of devices to communicate and connect with
The technology behind Bluetooth has achieved
global satisfaction such as enabled devices, almost
everywhere in the world. Bluetooth devices will
connect and communicate without wires through
short range and networks known as piconets.
Each device will simultaneously communicate with
up to seven other devices within a single piconet,
meaning that each device can also belong to
several piconets simultaneously. The piconets
are dynamically established as Bluetooth enabled
devices enter and leave the proximity of radio.
A fundamental to Bluetooth strength is the
ability to handle both data and voice transmissions
simultaneously. This will enable users to enjoy
varieties of innovative solutions such as hands
free talking, printing and fax capabilities,
and other applications.
Unlike other standards of wireless, the Bluetooth
specification gives product developers both a
link layer and application layer definitions,
which will help support data and voice applications.
The Bluetooth technology operates in the industrial
and scientific band at 2.4 to 2.485 GHz, using a
spread spectrum, frequency hopping signal.
The adaptive frequency hopping of Bluetooth
technology was designed to reduce interference
between wireless technologies that share the 2.4
GHz spectrum. Adaptive frequency hopping (AFH)
works well within the spectrum to take full
advantage of the frequency available.
AFH hopping allows for more efficient transmission
within the spectrum, which provides users with
greater performance even if they are using other
technologies along with Bluetooth.
10 Benefits Of Bluetooth
Below, are 10 benefits and reasons to use Bluetooth
As you probably already know, there are many benefits
and advantages to using wireless devices. Along with
improving safety as a result of eliminating wires
you don't need, wireless also offers you plenty of
other advantages. When traveling with your laptop
or other wireless devices, you'll no longer have to
worry about bringing connection cables.
2. Bluetooth is actually inexpensive
The technology of Bluetooth is cheap for companies
to implement, which results in lower costs for the
company. These savings are then passed from the
company on to you.
3. Bluetooth is automatic
Bluetooth doesn't have you set up a connection or
push any buttons. When two or more devices enter
a range of up to 30 feet of each other, they will
automatically begin to communicate without you
having to do anything.
4. Standardized protocol
Bluetooth is standardized wireless, meaning that
a high level of compatibility among devices is
guaranteed. Bluetooth will connect devices to
each other, even if they aren't the same model.
5. Low interference
Bluetooth devices almost always avoid interference
from other wireless devices. Bluetooth uses a
technique known as frequency hopping, and also
low power wireless signals.
6. Low energy consumption
As a result of Bluetooth using low power signals,
the technology requires very little energy and will
use less battery or electrical power as a result.
This is an excellent benefit for mobile devices,
as Bluetooth won't drain the battery.
7. Sharing voice and data
The standard for Bluetooth will allow compatible
devices to share data and voice communications.
This is great for mobile phones and headsets, as
Bluetooth simplifies driving and talking on your
8. Instant PAN (Personal Area Network)
You can connect up to seven Bluetooth devices to
each other within a range of up to 30 feet, forming
a piconet or PAN. For a single room, you can
also set up multiple piconets.
Upgradeable is the standard for Bluetooth. There
are newer versions of Bluetooth in the works,
which offer many new advantages and backward
compatible with older versions.
10. The technology stays
Bluetooth technology is a world wide, universal
wireless standard. With it being as popular as
it is, you can count on it being around for years
to come. As more and more devices start to use
Bluetooth technology, more manufacturers will be
eager to make their products compatible. A chain
reaction will occur, making Bluetooth the standard
for cutting edge wireless.
Bluetooth In Action
In the United States, Bluetooth gets absolutely no
respect. It is however, becoming more and more
common in notebooks, PDAs, and especially cell
phones. Bluetooth will provide wireless users a
way to transmit small amounts of data over short
Now, Bluetooth is facing stiff competition from
new wireless technology. Referred to as UWB or
Ultra Wideband, it promises data transfer of up
to 480 MB a second - while most current Bluetooth
devices transfer data up to 721 KB a second.
For the time being, Bluetooth devices are surely
cropping up. Below, we will look at some of
the accessories offered with Bluetooth technology.
Talking to the dashboard
When pairing it with a cell phone, the CCM Blue
Warrior car kit becomes a great speaker phone that
plugs into the power adapter of your vehicle. The
noise cancelling microphone will reduce background
noise efficiently, with the large buttons making
adjusting the speaker volume a snap. Although
the Blue Warrior is far from sexy or sleek, it's
Tiny tuning box
Part MP3 player and part hands free phone, the
compact and lightweight Sony HBM-30 is an attractive
gadget that lets you accept calls with minimal
interruption of your tunes. When you get an incoming
call it will automatically pause your music, then
you speak into the built in microphone that you
can wear around your neck or clip to your clothes.
With Nokia's SU-1B digital pen, you can doodle and
make hand written notes in ink on a special pad
then transmit them from the pad to your Bluetooth
phone. Being an alternative to typing on a cell
phone keypad, the pen is very handy, although a
pricey tool from MMS fans.
If you want to make slide shows with your camera
photos, the Nokia SU-2 image viewer will let you
disply your pictures on a TV or projector. Simply
hook this square gray device to your TV's input
with the built in cable, then beam the pictures
to the SU-2 from your Bluetooth enabled phone and
the photo fest will begin.
This device is a snap to set up and use, although
it displays resolutions of up to 640 by 480. If
you have a newer phone that takes high resolution
photos, you won't be able to use the Nokia SU-2
Keep in mind, the 640 by 480 pixel photos will
appear blocky on TV screens, no matter what you
do. If your phone can send batches of photos, you
can create a slide show - although Nokia claims
you can use sequentially beamed shots as well.
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