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Bluetooth-Technology Articles

Choosing A Bluetooth Headset

(category: Bluetooth-Technology, Word count: 416)
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Creating a good wireless headset for Bluetooth is

actually difficult to do. The regular wired headsets

are easy to design - with ranging styles.

Bluetooth headsets can never be as small or as light

as wired headsets, simply because it needs to include

the battery and extra functions. This extra size

will impact how the headset mounts on or around

your ears.


There seems to be two main styles of headsets for

Bluetooth. Some are held into place with a loop

around the ear. These styles are normally more

comfortable, although they may be less secure. The

others are held in place by being jammed into

your ear - and usually prove to be less comfortable.

Factors to consider


The cost is an obvious issue, something that you

really need to think about.


1. Check to see if the device is easy to

quickly and conveniently put on your ear then take

it off again.

2. Are the control buttons on the headset

easy to use?

3. The headset should be comfortable to

wear for long phone calls.

4. Can you use it with a pair of glasses?

5. Check to see if you can wear it with

either ear.

6. When you aren't wearing it, you'll

need to se how you would carry it with you.

7. The weight is important as well, as you

don't want something that has the risk of falling


Ease of use.

1. The commands and controls should be

easy to remember.

2. The volume level should be easy to


3. The unit should turn on quickly.

4. The manual should be very well written

and easy for you to understand.

5. There should be a support number for

you to call if you should experience any types of



1. You'll need to know about the battery,

the talk time, type, and how to tell when it is

going dead or fully charged.

2. How many devices can the unit be paired


3. Compatability is also important, as

well as the warranty period.

4. Check the sound quality for both

sending and receiving audio.

5. What type of range does the headset offer


Other important capabilities include voice tags,

last number redial, tranfer calls, 3 way calling,

link to other phones, call reject, and mute. You'll

also want to note if it looks attractive, and if

it's too big or too small.

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Bluetooth Specifications

(category: Bluetooth-Technology, Word count: 286)
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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

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


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.

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10 Benefits Of Bluetooth

(category: Bluetooth-Technology, Word count: 433)
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Below, are 10 benefits and reasons to use Bluetooth


1. Wireless

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

cell phone.

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.

9. Upgradeable

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.

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Bluetooth Wireless Networking

(category: Bluetooth-Technology, Word count: 291)
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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.

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Bluetooth Versions

(category: Bluetooth-Technology, Word count: 308)
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Version 1.1 and earlier

Since the technology of Bluetooth was introduced in

1998, several specification versions have been

released. Versions 1.0 and 1.0B had too many issues

and problems for manufacturers to develop devices

for Bluetooth. The main issue was the lack of

communication among the devices.

The core specification version 1.1 is the first

successful operating version of Bluetooth. Version

1.1 corrected a majority of the bugs and problems

found in earlier versions.

Version 1.2

Many of the newer Bluetooth devices, such as the

newer cell phones are being sold with the newer

Bluetooth version 1.2. This version offers backward

compatability with Bluetooth 1.1, faster transmission

speeds, received signal strength, and a host

controller interface (HCI) support for 3 wire UART.

Bluetooth version 2.0

It's true that there may be multiple communication

technologies, although they all share one common

trait - faster is better. Bluetooth specialists

realized this, and therefore worked on improving

the speeds of version 1.2. The newest version,

version 2.0 + EDR (Enhanced Data Rate) was

accounced in 2004 and became available in late


Version 2.0 delivers data transfer rates of up

to three times that of the original version of

Bluetooth. Version 2.0 also provides enhanced

connectivity. With Bluetooth 2.0 + EDR, you'll

be able to run more devices at the same time -

with more efficiency.

Computers and even computer related devices are

expected to be some of the first devices to

encorporate Bluetooth 2.0 + EDR, followed of

course by audio and imaging devices.

Version 2.0 is backward compatible with previous

versions, three times faster, and offers an

enhanced data rate of 2.1 MB a second. It also

offers broadcast and multicast support, along

with a further enhanced bit error rate

performance, making it the best Bluetooth has

ever seen.

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Bluetooth Applications

(category: Bluetooth-Technology, Word count: 312)
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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

for Bluetooth.

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

mobile phones.

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

data transmission.

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.

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Bluetooth And Apple

(category: Bluetooth-Technology, Word count: 412)
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The new Apple powerbook G4 are among the first

computers to offer Bluetooth technology 2.0+EDR.

The 2.0+EDR technology, which still backwards

compatible with 1.0, is up to three times faster

than previous versions, offering maximum data rate

transfers of up to 3 MBps. Being the first company

to certify a system with 2.0+EDR, Apple continues

to make great use of the Bluetooth technology.

Full support

In addition to the powerbook G4 portables, there

are other Bluetooth enabled computers available

from Apple, including the iBook, iMac G5, eMac,

and the Power Mac G5.

Making life easier

When you turn the Bluetooth feature on, your Mac

can easily perform a file transfer or even a

synchronization. From the Bluetooth selection

menu, you can choose to either send a file or

browse devices, quickly and easily. Or, you can

click the sync button in iSync to update your

cell phone or Palm OS handheld.

The Mac and GSM/GPRS mobile phone with Bluetooth

work to make each other more useful. By using

iSync, you can keep your phone updated without

having to type any info, as you can keep the

information in the more manageable address book

on your Mac instead.

You can also use your Bluetooth enabled Mac to

print documents and digital images to select a

printer that also supports the technology of

Bluetooth. Or, you can also use a headset to

talk to your friends during an iChat session.

Your Mac also has the ability to use Bluetooth

technology to communicate with your Palm OS

handheld. This way, you can perform a HotSync

operation without using any cables. You can also

send your business card or calendar events directly

to someone else's handheld usingthe technology of


The implementation of Bluetooth by Apple is the

latest in a series of moves that have caused

great shift in the computer industry. Apple

established USB as the standard interface with

the launching of the first Mac back in 1998.

Since then, Apple established the 802.11 wireless

standard of networking with the launch of the

iBook and AirPort in 1999. During 2003, Apple

launched AirPort Extreme, which was based on

the new 802.11g high speed technology of wireless.

Now, Bluetooth helps to further strengthen the

dominant position of the Mac in wireless

communications, helping to preserve Apple's

reputation for being the first to market with

innovative technology that integrates right into

the operating system.

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Bluetooth And Infared

(category: Bluetooth-Technology, Word count: 310)
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With new electrical devices being produced every day,

the problem of connecting things is becoming more

and more complex in nature. The system that comprises

computers and other electronics makes use of varieties

of wires, cables, etc.

These parts will communicate through light beams,

lasers, radio signals, and infrared. The problem

however, is the devices and technology is often the

connection between each component. Therefore, most

electronic systems aren't used to their full extent

due to the problems and imperfections.

To help simplify things, a solution was created -

the solution of Bluetooth. Bluetooth is wireless

and automatic, offering users a variety of features

that have simplified the art of connection. Bluetooth

has revolutionized the standard methods of connecting

things to enabling almost anything to be connected

to a single system.

Aside from Bluetooth, there are other ways of

connecting wireless devices. One example of such

is the IR or infrared. Infrared allows low frequency

light waves to transmit signals to another component.

This technology is easy to create and the cost of

putting the IR device into a system is rather low.

Infrared technology is a one to one process. Due

to the limitation, you may only send signals from one

device to another, similar to a television set and

remote control. You can only transmit signals

between the two although not with a seperate system.

Aside from the fact that these two natures of

infrared are obstacles to acquiring results, these

same qualities have worked in advantage to the

connection. Infrared devices need to be lined up

directly, meaning too little interference can occur

between the transmitters and receivers.

The technology behind Bluetooth works by transmitting

signals through low frequency radio signals. The

path of communication is working on 2.45 GHz, which

is the same frequency band used in ISM devices.

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Introduction To Bluetooth

(category: Bluetooth-Technology, Word count: 423)
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Bluetooth was designed to allow low bandwidth wireless

connections to become easy to use so even those who

are new to wireless can use them. Version 1.1 of

Bluetooth describes a low power, short range wireless

networking technology that uses radio waves to send

data at rates up to 720 kilobits a second.

The specification for Bluetooth provides for different

classes of radio that allow transmission ranges of

up to 100 meters by boosting the radio power. The

technology of Bluetooth isn't limited to line of

sight transmission since it uses directional waves

that are capable of transmitting through many


Bluetooth is an industry standard communication of

wireless, meaning that it enables the connection

of other devices as well, such as cell phones,

computers, digital cameras, and other types of

electronic devices. The specification of Bluetooth

defines a radio system and a "stack" of protocol

layers and profiles. The highest layer is the

application layer, while the lowest layer is the


The wireless technology of Bluetooth is positioned

to revolutionize the personal connectivity market

by providing freedom from inconvenient fixed type


The specification for Bluetooth eliminates the need

for cables by providing a small form factor, low

cost wireless solution that will link computers,

cell phones, and other electronics. Bluetooth

also allows users to connect many ranges of devices

quickly and easily and expands communications

capabilities as well.

The size of the Bluetooth radio is amazing, as a

Bluetooth radio can be built into one or two very

small microchips then integrated into any electronic

device where wireless operations would be an


Bluetooth also offers a robust link, which ensures

that normal operating circumstances are not

interrupted by interference from other signals

that are operating in the same frequency band.

Also known for its worldwide operation, Bluetooth

radio operates in the 2.4 GHz frequency band, which

is license free and available to any type of

radio system in the world. No matter where you

are in the world, you count on Bluetooth to work.

Security is also important. Offering advanced

security mechanisms, Bluetooth ensures a high level

of security. Therefore, authentification will

prevent unauthorized acess to important data and

make it very difficult to listen in.

Bluetooth also boasts power optimization. The radio

is power friendly and the software for Bluetooth

is very configurable, limiting the power consumption

of equipment. The radio itself only consumes a

small amount of power from a cellular phone.

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