An Important Role of Bluetooth And The Driver

Put simply, Bluetooth is a short-range-radio technical standard for protocols that facilitate communication between wireless devices such as mobile phones, PDAs (personal digital assistants) and handheld computers, and wireless computers and peripherals.

The Bluetooth wireless mouse and the Bluetooth wireless mobile phone headset are good examples. Switch on your Bluetooth-enabled phone and it can quickly be paired up with a Bluetooth-enabled headset. A Bluetooth mouse doesn't need wires to move the curser about your screen and execute commands.

As long as the devices remain within about 10 meters of one another, the headset and the mouse will work nicely without any obnoxious wires getting in your way.

For drivers, Bluetooth could be a saviour, especially if teamed up with voice recognition technology. Imagine a world in which you place your mobile in its holder on the dash and tell it to dial a number while you listen on your sleek and very discreet headset - a godsend in countries or states that prohibit use of hand-held mobiles while driving.

New York-based Frost and Sullivan, marketing consultants who specialize in information and intelligence on emerging high-technology, reckon that by 2010, more than 16% of all cars sold in North America will have Bluetooth technology installed. The current level is about 2.5%. They reckon that in total, almost a billion Bluetooth devices will ship by 2010.

More and more we're carrying our electronic information devices with us: mobile phones, handheld computers, MP3 players, and even DVD players. A society that is hooked on being connected wants to be connected everywhere - in our homes, at the office, in the car and even when we're walking about. And if this is what we want, Bluetooth technology is a very likely candidate for making it happen.

However, there's another key technology that will likely work with Bluetooth to make it safe and convenient: voice recognition software.

This technology will enable drivers to talk to their Bluetooth -enabled devices rather than having to take their eyes off the road to push buttons and twist knobs. In addition, voice recognition technology could possibly enable automakers to do away with expensive screens or touch input displays.

Another interesting twist is that 'voice biometrics' can be an effective way to determine who's driving the vehicle. Once voice recognition technology is installed in a car it can be used to personalize the vehicle, setting seat position, radio stations, etc. to the driver's preferences.

The Power Behind Bmw Bluetooth

You can get more from your ultimate sound system for your ultimate driving machine, with BMW Bluetooth kits. A BMW bluetooth adapter enables you to get more from your sound system than you dreamed possible.

Hang Up and Drive

In today’s frenetically-paced world, there are few of us that can afford to be out of touch for any length of time, which means having a cell phone ready at all times - including drive time. Unfortunately, driving and cell phones don’t always mix, and sometimes, the consequences can be fatal. In response, more states and municipalities are passing strict laws prohibiting the use of cell phones by a driver while a vehicle is in motion.

The Hands-Free Solution

BMW Bluetooth is a great solution for those who need to be reachable during drive time. A BMW Bluetooth kit from Bavarian Soundwerks uses genuine BMW components and utilizes OEM wiring and components for a “hands-off” solution. BMW Bluetooth enables you to activate, make and accept incoming calls on your cell phone without ever having to remove it from your pocket or even touch it!

A New Use for an Old Technology

The first experiments with radio waves date back to the late1880s, when Nikola Tesla and Gugliemo Marconi began early attempts to achieve wireless communication. However, it took almost thirty years before the first real radio was made available to the public.

BMW Bluetooth technology is based on the work of two Swedish engineers starting in the 1990s. It is essentially the use of low frequency, low bandwidth radio waves that allows an astonishing variety of digital devices to “talk” to each other.

Today, Bluetooth is used to network personal computers, printers, modems, digital cameras, and even game consoles. The first use however was for “hands free” devices that would allow drivers to use cell phones safely while the car was in motion.

It’s Fully Integrated

With a BMW Bluetooth retrofit or installation kit, your cell phone can actually “talk” to - and through - your car’s radio. If your cell phone supports such features (and most newer ones do), you’ll even be able to activate your phone with voice commands and display data (such as phone numbers) on your vehicle’s instrument displays!

It works both ways, as well. You won’t miss incoming calls because you’re listening to music or other programming through your radio; BMW Bluetooth technology allows your cell phone to automatically mute whatever is on the radio when a call is made or received.

Easy and Affordable

A BMW Bluetooth installation or retrofit kit from Bavarian Soundwerks is affordable and easy to install. You’ll receive clear, simple instructions with your kit, and all necessary parts are included.

Contact Bavarian Soundwerks today - with just a few bits of information about your BMW 3 Series, 5 Series or X5 vehicle, they’ll have the right BMW Bluetooth kit in your hands in no time.

Technical information Of Bluetooth

Bluetooth has a lot to offer with an increasingly difficult market place. Bluetooth helps to bring with it the promise of freedom from the cables and simplicity in networking that has yet to be matched by LAN (Local Area Network).

In the key marketplace, of wireless and handheld devices, the closest competitor to Bluetooth is infrared. Infrared holds many key features, although the line of sight it provides doesn't go through walls or through obstacles like that of the Bluetooth technology.

Unlike infrared, Bluetooth isn't a line of sight and it provides ranges of up to 100 meters. Bluetooth is also low power and low processing with an overhead protocol. What this means, is that it's ideal for integration into small battery powered devices. To put it short, the applications with Bluetooth are virtually endless.

Disadvantages

Bluetooth has several positive features and one would be extremely hard pressed to find downsides when given the current competition. The only real downsides are the data rate and security. Infrared can have data rates of up to 4 MBps, which provides very fast rates for data transfer, while Bluetooth only offers 1 MBps.

For this very reason, infrared has yet to be dispensed with completely and is considered by many to be the complimentary technology to that of Bluetooth. Infrared has inherent security due to its line of sight.

The greater range and radio frequency (RF) of Bluetooth make it much more open to interception and attack. For this reason, security is a very key aspect to the Bluetooth specification.

Although there are very few disadvantages, Bluetooth still remains the best for short range wireless technology. Those who have tried it love it, and they know for a fact that Bluetooth will be around for years to come.

Communication and connection

A master Bluetooth device can communicate with up to seven devices. This network group of up to eight devices is called a piconet.

A piconet is an ad-hoc computer network, using Bluetooth technology protocols to allow one master device to interconnect with up to seven active devices. Up to 255 further devices can be inactive, or parked, which the master device can bring into active status at any time.

At any given time, data can be transferred between the master and one other device, however, the devices can switch roles and the slave can become the master at any time. The master switches rapidly from one device to another in a round-robin fashion. (Simultaneous transmission from the master to multiple other devices is possible, but not used much.)

Bluetooth specification allows connecting two or more piconets together to form a scatternet, with some devices acting as a bridge by simultaneously playing the master role and the slave role in one piconet. These devices are planned for 2007.

Many USB Bluetooth adapters are available, some of which also include an IrDA adapter. Older (pre-2003) Bluetooth adapters, however, have limited services, offering only the Bluetooth Enumerator and a less-powerful Bluetooth Radio incarnation. Such devices can link computers with Bluetooth, but they do not offer much in the way of services that modern adapters do.

Setting up connections

Any Bluetooth device will transmit the following information on demand:

• Device name.
• Device class.
• List of services.
• Technical information, for example, device features, manufacturer, Bluetooth specification used, clock offset.

Any device may perform an inquiry to find other devices to connect to, and any device can be configured to respond to such inquiries. However, if the device trying to connect knows the address of the device, it always responds to direct connection requests and transmits the information shown in the list above if requested. Use of device services may require pairing or acceptance by its owner, but the connection itself can be initiated by any device and held until it goes out of range. Some devices can be connected to only one device at a time, and connecting to them prevents them from connecting to other devices and appearing in inquiries until they disconnect from the other device.

Every device has a unique 48-bit address. However these addresses are generally not shown in inquiries. Instead, friendly Bluetooth names are used, which can be set by the user. This name appears when another user scans for devices and in lists of paired devices.

Most phones have the Bluetooth name set to the manufacturer and model of the phone by default. Most phones and laptops show only the Bluetooth names and special programs that are required to get additional information about remote devices. This can be confusing as, for example, there could be several phones in range named T610 (see Bluejacking).

Pairing

Pairs of devices may establish a trusted relationship by learning (by user input) a shared secret known as a passkey. A device that wants to communicate only with a trusted device can cryptographically authenticate the identity of the other device. Trusted devices may also encrypt the data that they exchange over the airwaves so that no one can listen in. The encryption can, however, be turned off, and passkeys are stored on the device file system, not on the Bluetooth chip itself. Since the Bluetooth address is permanent, a pairing is preserved, even if the Bluetooth name is changed. Pairs can be deleted at any time by either device. Devices generally require pairing or prompt the owner before they allow a remote device to use any or most of their services. Some devices, such as mobile phones, usually accept OBEX business cards and notes without any pairing or prompts.

Certain printers and access points allow any device to use its services by default, much like unsecured Wi-Fi networks. Pairing algorithms are sometimes manufacturer-specific for transmitters and receivers used in applications such as music and entertainment.

Air interface

The protocol operates in the license-free ISM band at 2.4-2.4835 GHz. To avoid interfering with other protocols that use the 2.45 GHz band, the Bluetooth protocol divides the band into 79 channels (each 1 MHz wide) and changes channels up to 1600 times per second. Implementations with versions 1.1 and 1.2 reach speeds of 723.1 kbit/s. Version 2.0 implementations feature Bluetooth Enhanced Data Rate (EDR) and reach 2.1 Mbit/s. Technically, version 2.0 devices have a higher power consumption, but the three times faster rate reduces the transmission times, effectively reducing power consumption to half that of 1.x devices (assuming equal traffic load)

Bluetooth GPS Receiver

If you are looking for ways to convert your smart phone or PDA into a satellite navigation tool, then a suitable GPS software and a GPS receiver is necessary. The best thing about a Bluetooth GPS receiver is that it will connect to your PDA or smart phone wirelessly that is only if your PDA or smart phone has Bluetooth in order to do this.

A Bluetooth GPS receiver is usually portable so that it can be carried around effortlessly with minimum hassles. The receiver is a complete wireless satellite position system which works on the GPS communication Technology. Being highly sensitive and having a tracking sensitivity measurement of over 157dBm, enables quick receive time and functionality even in bad weather conditions. The receiver comes with a Lithium-Ion battery to enable long usage. The receiver is most ideal for use with the popular navigation software TomTom Navigator.

With the Bluetooth GPS receiver you can enjoy up to 30 channels at a frequency of L1, 1575.42MHz. Weighing at about 65gms the receiver is very light and portable. The battery life can go up to 15 hours once it is charged for about 2.5 hours.

Buying a sensitive gadget like the Bluetooth GPS receiver involves a little knowledge from experts of how to best use it. If you plan to buy such a gadget online then you would require a website which would offer you a quality product with extended battery life and a low price tag. Such websites like www.techfocus.co.uk can be trusted as they offer genuine products at a price that can surely fit into your budget.

Wep410 Bluetooth Headset by Samsung

Headsets with Bluetooth wireless technology are capable of working with a variety of other Bluetooth devices. Unlike other headsets, Bluetooth headsets do not require wires of any sort.

There are a wide range of Bluetooth headsets out there. What matters is the taste in styles and preferred features to which is right for you. One of them could be the Samsung WEP410 Bluetooth headset; with class and performance this Bluetooth headset is your perfect companion allowing you to talk effortless anywhere, anytime and in any situation. It is designed to perfectly complement the Samsung Bluetooth capable mobile phones. The WEP410 Bluetooth headset offers style and features that should make it a consideration for anyone looking to be cool and sleek.

The Samsung WEP410 Bluetooth headset provides a talk time of 4 hours and stand by time of 70 hours. The Samsung WEP410 Bluetooth headset handles calls with a multifunction button and control of the volume can be accessed from the headset itself. You get voice dialing support with the Samsung WEP410 Bluetooth headset and can be used with cellular phones having the voice dial capabilities. It is small and light weighing about 7.WEP410 is a pioneer at only 4g and operating at a distance of up to 30 feet. So you can walk and talk with out having your phone with you.

So whenever you buy a Bluetooth headset you should make sure you are buying the right thing. The weight of the Bluetooth headset you are going to buy is important. The Samsung WEP410 is a wonderful device; it gives you freedom from the messy cables and creates connection between you and your personal computer or mobile phone wirelessly. A small and comfortable device in your ear can make a difference in your lifestyle. The quality the voice in a Bluetooth headset device is simple crystal clear.

The Samsung WEP410 Bluetooth headset is the next generation of wireless peripherals. The number of advantages in choosing a Bluetooth headset is you can use it with any Bluetooth enabled device and you can both use it in the comforts of your home and office. The Samsung WEP410 Bluetooth headset device is on the cutting edge technology. Bluetooth wireless technology makes lives much easier but especially the WEP410 by Samsung. The Samsung WEP410 Bluetooth headset makes it easy when you are in the house at the same time preparing your food or making some small repairs in your house. You can use it when you are jogging, walking your dog and when you are driving your kids to school.

There are so many things that you can do with the Samsung WEP410 Bluetooth headset. It is a hands free device to doing the multi-tasking moments you would want to do to get things done in a flash and even enjoy doing it. If you want to walk and talk you better think twice.

Bluetooth Wireless Operation

The networking standards of Bluetooth will transmit data via low power radio frequency. Bluetooth communicates on a 2.45 GHz frequency. This very band of frequency has been set aside by international agreement for the use of industrial and medical devices.

Many devices that you already known and use take advantage of this frequency band. Garage door openers, baby monitors, and the next generation of mobile phones all use this frequency within the ISM band. Ensuring that Bluetooth and the other devices don't interfere with each other is a crucial part of the design process.

One of the ways Bluetooth will avoid interfering with other electronic devices is by sending out weak signals of around 1 mw. In comparison, even the most powerful of cell phones can transmit a signal of 3 watts.

The low power signals will limit the range of a Bluetooth device to around 32 feet, which cut the chances of interference between your computer and other electronic devices. Even though it has low power, Bluetooth doesn't require a line of sight between the communicating devices. The walls in your home won't stop the signal, making it great for rooms throughout the house.

Bluetooth can connect 8 devices at the same time. With each of those devices on the same radius, you may think they would interfere with each other, although it's very unlikely. Bluetooth utilizes a technique known as low frequency hopping, which makes it harder for more than one device to transmit on the same frequency at the same time.

With this technique, a device will use 79 individual, randomly chosen frequencies within a designated range, which change from one another on a regular basis.

In the case of Bluetooth, the transmitters will change frequency 1,600 times or more every second, meaning that more devices can make full use of the radio spectrum. Since every transmitter of Bluetooth will use spread spectrum automatically, it's very unlikely that two transmitters will be on the same frequency at the exact same time.

When the Bluetooth devices come within close range of each other, an electronic conversation will occur to determine whether or not they have data to share or whether one needs to take total control. The user doesn't have any buttons to press or commands to give - as the conversation will occur automatically.
Once the conversation has occured, the devices will form a network. Bluetooth devices will create a PAN (Personal Area Network) or piconet that may fill a room. Once the piconet has been established, the devices will randomly hop in frequencies.

Top 5 Coolest Uses for your Bluetooth Cell Phone

Did you know that the Bluetooth feature that came with your new cell phone has a lot more uses than just hooking up to a wireless headset? With a Bluetooth enabled cell phone, you can access the internet with a secure connection on your laptop - wherever you get a cell signal, use your phone as a digital camera, mp3 player, or just share your favorite files with friends and family. Now, its true that you can do these things before, but Bluetooth allows you to do it all wirelessly  without the need for messy cables and connectors.

However, not all Bluetooth phones are created equal. In order to do any of the cool stuff mentioned here, youre mobile phone has to support OBEX, which stands for Object Exchange. You see, the Bluetooth specifications allow for many different functions, such as connecting to headsets, sharing data, etc. One function  the one were discussing here, is OBEX, which allows your phone to exchange data wirelessly with other devices. Now, a certain cellular carrier (whom we will simply refer to as V), along with a few other manufacturers, have chosen to cripple the functionality of their phones by deliberately disabling OBEX. They do this for a number of reasons, but the end result is, if your phone doesnt support OBEX, you cant do any of these cool things. So, the next time you shop for a new cell phone, you may want to first check to make sure your Bluetooth is not crippled in any way before making a purchase. (By the way, even if the manufacturer has disabled OBEX, it may still be possible for users to enable it  do a web search to try and find a software fix for your phone. Of course, be aware that you may void your warranty if you screw up, so be careful!)

The top 5 coolest things you didn't know you could do with your Bluetooth cell phone.

1) Use your phone as a wireless modem for your laptop - surf the internet by connecting wirelessly through your cell phone. This is my top pick. Why spend extra for a cellular modem and separate data plan when Bluetooth lets you use your cell phone to connect wirelessly to the web? Many cellular companies offer some sort of data usage plan - for just a few bucks extra per month, you get unlimited data transfers. So, by installing the right scripts in your laptop, you can configure it to connect to your cell phone with Bluetooth for instant, wireless internet access. The real beauty of this setup is that, since most people already carry their cell phones with them, they can get a secure internet connection wherever they get a signal, and not worry about carrying adapters or having a special modem card. Also, I feel much safer using my own connection anyway, rather than rely on open public hotspots  especially when I want to access my bank accounts or other private sites. Every cell phone is different, so if you want to find out how to connect with yours, just google it. Try using the terms "how to use my (phone model) as a Bluetooth modem".

2) Take pictures on your camera phone and download it to your computer - without having to search for a cable or adapter. With today's camera phones packing as much as 3 or more megapixels, you may find it to be a very credible alternative to a standalone digital camera. So, the next time you're on vacation, or out with friends, and you just happened to forget to pack your camera, chances are you probably have your cell phone. Just snap away, and when you're done, use Bluetooth to download those pictures onto your laptop wirelessly.

3) Synchronize your contacts list with your computer - tired of manually entering all your names and numbers into your new cell phone? Just use Bluetooth to automatically synchronize your phone's contacts list with the one stored in your computer. No more having to use your phone's keypad to enter all that tedious information. What's more, your phone probably comes with software to automatically keep your contacts list up to date whenever phone is placed near your computer

4) Use your phone to play music, with stereo Bluetooth headphones - don't have, or don't want an IPod? Tired of carrying yet another gadget when you just want to listen to some music? Why not use your phone instead? Many come with slots for removable flash cards and music playback capabilities. Just pop a 4 or 6 GB memory card into your phone, and start downloading all those mp3s stored in your computer wirelessly, right to your phone. And, some of the newest phones also support stereo Bluetooth playback, allowing you to listen to your tunes with wireless stereo headphones.

5) Share your favorite pictures, songs, games, and ringtones stored in your phone with your friends by sending them wirelessly to their phone. Have a great ringtone, or some pictures you just took on your cameraphone that you want to share with a friend? Send it to them via Bluetooth, and never have to think about having the right cables to connect. Just make sure your friend's Bluetooth is turned On and Discoverable, and start sending.

So, there you have it. Some of the most useful and fun things you can do with your Bluetooth cell phone. And remember - you can't do any of these things unless your cell phone supports the Bluetooth OBEX, or file transfer, protocol. So, the next time you're shopping for a new mobile phone, just be sure to check first before spending your hard earned cash. With all the benefits Bluetooth provides, it's time for smart users to demand that manufacturers stop crippling our phones. Have fun

Infrared And Bluetooth: Connecting Things Easier

Different electrical devices produced everyday, the problem of connecting things is becoming more and more complex. The system that comprises the computers and other electronic devices makes use of varieties of connecting wires, cables and the likes. These parts communicate trough light beams, lasers, radio signals and infrared. However, the problem with this devices and technologies is often the connection between each component. Thus, most systems are not used to their full extent due to complexities.

To simplify things, a solution was created to streamline the process of connections- bluetooth.

Bluetooth is wireless and automatic and offers users with varieties of excellent features that has recreated the art of connection. It has revolutionized the standard method of connecting things that virtually anything can be connected on a single system. From computers to mobile phones and from keyboards to headphones by means of wireless, automatic and inexpensive connection.

Other than the bluetooth technology, there are other ways of connecting things. Take for example the infrared or IR. It allows low frequency light waves which the eye can no longer interpret to transmit signals to another component. The technology is easy to create and cost of incorporating the IR device into a system is in barest minimum. Yet it has limited operations that seldom obstructs the process of connection.

Infrared technology is one to one process. Due to this limitation, you may only send signals from one component to another, like the case of the television set and the remote control. The same is true between laptops and desktops. You may only transmit signals between the two but not with another separate system, say a PDA through simultaneous actions.

It also works only on the line of sight principle wherein one has to point the infrared device directly to the host system to achieve a desirable result.

In spite of the fact that these two natures of infrared technology are obstacles to acquiring results, these same qualities have worked in advantage to connection. Because infrared devices need to be lined up directly on opposing locations, too little interference occurs between transmitters and receivers. The one to one principle on the other hand is designed to transmit signals only to the original recipient. Given that there are varieties of infrared recipients in a location, the intended recipient alone will receive the signal coming from a transmitter.

However, technology was not contented with what infrared offers. They resolved these limitations through creating the bluetooth solution.

Bluetooth technology works by transmitting signals via low frequency radio signals. The path of communication is approximately working on 2.45 gigahertz. The same frequency band is utilized in ISM devices.

The design of the technology was such that it has created a new system that does not interfere with the other devices that make use of the same frequency band (e.g. ISM). One way of doing this is the programming of the bluetooth technology to only transmit signals that has 1 milliwatt or less. Beyond this, other systems may be affected. By comparison, cell phones and other mobile devices send signals at a rate of 3 milliwatts and more.

The standard range of the bluetooth is around ten meters. This lessens the possibility that interference between device may occur. With this low transmission, it is still possible for the user to transmit bluetooth signals between obstructing walls.

Bluetooth in many ways have contributed much in connecting individual systems without being bothered by the bulk of the cables and wires.

Bluetooth stack

A Bluetooth stack refers to an implementation of the Bluetooth protocol stack.

Bluetooth stacks can be roughly divided into two:

1. General-purpose implementations that are written with emphasis on feature-richness and flexibility, usually for desktop computers. Support for additional Bluetooth profiles can typically be added through drivers.
2. Embedded system implementations intended for use in devices where resources are limited and demands are lower, such as Bluetooth peripheral devices.

Generally, only a single stack can be used at any time: switching usually requires uninstalling the current stack, although a trace of previous stacks remains in the registry. However, there are some cases where two stacks can be used on the same computer, each using their own separate Bluetooth radio hardware

General-purpose implementations

Windows

Widcomm

Widcomm was the first Bluetooth stack for the Windows operating system. The stack was initially developed by a company named Widcomm Inc., which was acquired by Broadcom Corporation in April 2004. Broadcom continues to license the stack for inclusion with many Bluetooth-powered end-user devices.

An API is available for interacting with the stack from a custom application. For developers there is also a utility named BTServer Spy Lite bundled with the stack (some vendor-tied versions excluded) which monitors Bluetooth activity on the stack at a very low level - although the category and level of trace is configurable. Uniquely, this stack also allows use of RFCOMM without creating a virtual serial port in the operating system.

Microsoft Windows stack

Windows XP includes a built-in Bluetooth stack starting with the Service Pack 2 update, released on 2004-08-06.

Prior to this, Microsoft released a QFE of its Bluetooth stack for Windows XP Service Pack 1 labelled as QFE323183. Microsoft only released this directly to third-party companies and did not directly release it to the public. The third-party companies were then allowed to release the QFE as part of their own Bluetooth device's software installation. Microsoft no longer supports this QFE.

Windows Vista also includes a built-in Bluetooth stack which is an expansion over the Windows XP Bluetooth stack. In addition to supporting more Bluetooth profiles than Windows XP Service Pack 2, it also supports third-party driver development which enables third-parties to add support for additional Bluetooth Profiles. This was lacking in the Windows XP Service Pack 2 built-in Bluetooth stack, which only allowed application development on top of the Microsoft Bluetooth stack, which some observers felt slowed the adoption of the Microsoft Windows Bluetooth stack. This stack does however provide RFCOMM support using sockets instead of virtual serial ports.

Microsoft has not released an official Bluetooth stack for older Windows versions, such as Windows 2000 or Windows Me.

EtherMind stack

EtherMind is a Bluetooth protocol stack from MindTree's for embedded devices and host platforms.[citation needed] A non-disclosure agreement is required to obtain the API documentation.

Toshiba stack

Toshiba has created its own Bluetooth stack for use on Microsoft Windows. This stack is not the same as the Microsoft Windows Bluetooth stack but is its own version. Toshiba licenses their stack to other OEMs and has shipped with some Fujitsu Siemens,Dell and Sony laptops. A non-disclosure agreement must be signed to obtain the API.

BlueSoleil

BlueSoleil is a product of the IVT Corporation, which produces stacks for embedded devices and desktop systems. The stack is available in both standard and VOIP versions for Windows desktop operating system. The desktop version supports: DUN, FAX, HFP, HSP, LAP, OBEX, OPP, PAN SPP, AV, BIP, FTP, GAP, HID, SDAP, and SYNC. An API is freely available. The graphical user interface provided shows API activity in real time, which aids in software development.

Linux

The Linux operating system currently has two widespread Bluetooth stack implementations:

* BlueZ, included with the official Linux kernel distributions, initially developed by Qualcomm.
* Affix, developed by Nokia Research Center.

BlueZ

BlueZ is the official[citation needed] Bluetooth stack for Linux. Its goal is to make an implementation of the Bluetooth wireless standards specifications for Linux. As of 2006, the BlueZ stack supports all core Bluetooth protocols and layers.It was initially developed by Qualcomm, and is available for Linux kernel versions 2.4.6 and up.

In addition to the basic stack, the Bluez-utils and Bluez-firmware packages contain low level utilities such as dfutool which can interrogate the Bluetooth adapter chipset to determine whether its firmware can be upgraded.

hidd is the Bluetooth HID daemon

Embedded implementations

lwBT

lwBT is an open source lightweight Bluetooth protocol stack for embedded systems. It acts as a network interface for the lwIP protocol stack.

It supports some Bluetooth protocols and layers, such as the H4 and BCSP UART layers. Supported higher layers include: HCI, L2CAP, SDP, BNEP, RFCOMM and PPP. The supported profiles are: PAN (NAP, GN, PANU), LAP, DUN and Serial Port.

lwBT has been ported to the Renesas M16C and Atmega AVR line of microcontrollers, and Linux as well as Windows.

Windows CE

Windows CE is Microsoft's embedded operating system, which also supports Bluetooth. However, different stacks can be installed on windows CE devices, including Microsoft, Widcomm, and Toshiba, depending on the embedded device on which the OS is installed.

BlueLet

Also a product of IVT Corporation. DUN, FAX, HFP, HSP, LAP, OBEX, OPP, PAN and SPP are currently supported.

Bluetooth Technology: Hype Or A Glimpse Into The Future

Although the average consumer has only recently begun to discover the joys of Bluetooth technology, it has been around for quite a while now. The fact that it has been around means that there are quite a few products that are now able to support and utilize this technology and those numbers are growing each year. Currently you can find many Bluetooth supported laptops, cell phones, and PDAs.

The recently discovered technology that Bluetooth offers uses short range radio signals in order to replace wires and cables that were once required to transfer information from one device to another. The most hallowed capabilities of this technology is its use friendly lack of complexity, its ability to hold a true connection without constant interruptions, its lower power consumption, and its affordability. Bluetooth was made to operate in areas where 'noisy' frequencies often prevent other wireless connections to flourish. Bluetooth uses a fast acknowledgement and 'frequency hopping' application in order to maintain a smooth connection.

Bluetooth radio frequencies move at 2.4 GHz, which requires no licensing in order to use. Using this particular frequency allows the avoidance of interruptions from other frequencies and signals. Bluetooth radio also moves much more quickly than other similar systems because it utilizes shorter packets.

History of Bluetooth

Bluetooth can be traced to the King of Denmark from 949 to 981. Harold Bluetooth was famous for his ability to help people communicate with one another more effectively. The characters on the Bluetooth logo come from characters in the runic alphabet. The reference to this particular king is somehow appropriate as Bluetooth technology also accomplishes the often-difficult task of keeping people connected and communicating effectively.

Bluetooth.org defines Bluetooth as a worldwide specification low cost radio solution. This small factor enables the communication of mobile devices with one another.

Bluetooth operates by using 2.4 GHz radio signals that are very similar to those used in many cordless home phones and wireless networking systems. Bluetooth has found a manner in which to limit interference while improving the quality of the transmission because of its heavy reliance on this frequency range. Bluetooth version 1.1 has made leaps and bounds in progress and as a result is not backwards compatible with previous versions.

The maximum rate at which Bluetooth can transfer data is 723 kbps and a range of anywhere from 60 to 120 feet. Bluetooth can be used for a wide variety of applications. Some of the more common current applications include laptops, PDAs, headphones, and printer adapters. Many laptops have Bluetooth adapters built in so that the laptop can easily communicate with other Bluetooth enabled devices. You can also use many USB adaptors in order to communicate with devices that are not graced with a Bluetooth adaptor.

Another great benefit of Bluetooth is the fact that it allows PDAs to easily sync wirelessly as well as to transfer data. Bluetooth is useful in headphones for cell phones in particular to allow hands free, wireless cell phone communication while driving, working, or performing any number of tasks that require the use of your hands.

Many new gadgets are wireless through the technologies that Bluetooth has introduced. A Bluetooth mouse and/or keyboard can be used at a distance of up to 30 feet for those who need to be farther ways from the computer. Bluetooth printer adaptors are particularly useful as they allow multiple users in a network to share printer access without a snake pit of wires to really confuse things.

While Bluetooth is inexpensive to use, the main reason it isn't more widely used is the initial costs required to implement this technology. The initial costs of installing a Bluetooth system are somewhat prohibitive and most companies aren't prepared to make this sort of investment in emerging technology.

Bluetooth Wireless In Your Home Office

Bluetooth is a wireless communication protocol that provides a method of wirelessly exchanging data between bluetooth enabled devices. Unlike Wi-Fi which requires more power to operate and a separate configuration for each device, Bluetooth requires low power consumption, is relatively simple to use, and is designed for use in a much smaller area. A network of devices formed around Bluetooth is known as a PAN, or Personal Area Network.

While the technology has been around for over ten years and its use has steadily grown, still relatively few take full advantage of the many capabilities it presents. One excellent use of Bluetooth technology for the consumer is in the home office.

The conversion of a typical home office set up to wireless technology is fairly simple and straightforward. It is not required to have any programming skills or advanced computer skills in order to make it work.

In converting your home office to Bluetooth wireless, the first order of business is acquiring an adapter for your computer. This is a small device which plugs into the USB port of your computer and will allow your computer to communicate with Bluetooth components. Many of these adapters (or dongles) are similar in size to the popular USB flash drives. The adapter becomes the "master" and is capable of communicating with up to seven Bluetooth enabled devices. They are manufactured by many well known companies in the wireless field, such as D-link and Linksys, and are readily available.

Moving on, you may then want to consider a wireless mouse and keyboard. These devices must be purchased with Bluetooth technology pre-installed (there are no converters available for these components). There are a considerable number on the market and most work basically the same. Your choice should be one of personal preference and as these are separate devices it is not necessary to replace both. Several of the more popular models are made by Logitech and Microsoft.

Next step is the printer. While there are several newer printers on the market that are bluetooth enabled, many opt for a printer adapter which will do the same job. If you are in the market for a new printer, it makes sense to buy one that is already Bluetooth capable. If not, adapters are readily available for most printers. They are similar to the computer adapter in that they plug into the printers USB port. There are also several models available which will utilize the parallel port for older printers.

Congratulations - you have just set up your Personal Area Network. However, no more hassling with wires and cables is just the beginning. And this is where the real beauty and functionality of Bluetooth lies. You now have a PAN that will work well with any Bluetooth enabled device. Upload and download data from your PDA without wires. Wirelessly upload and print photos from a Bluetooth enabled digital camera. Print documents from your laptop with no cables. If you enjoy music while you work, Bluetooth enabled stereo headphones are available.

It is great technology with endless possibilities for both productivity and enjoyment.

Ten Reasons You Should Use Bluetooth

If you are one of the many people who wonder exactly what Bluetooth technology is, you're about to get a brief rundown.

1) Bluetooth provides the ability for items that often need to be hard wired to be completely wireless. It allows you to use your laptop, cell phones, and hand held computer without being limited by cords, wires, and connections. In other words, Bluetooth technology allows portable devices to be truly portable.
2) Bluetooth is a surprisingly affordable option when compared to similar technologies. Because Bluetooth is inexpensive for companies to utilize they are also willing to pass the savings along to consumers.
3) Perhaps the greatest thing about Bluetooth for the average consumer is the fact that it is easy to use. There are no complicated sequences of keys you have to learn in order to make use of your Bluetooth devices.
4) Another winning fact about Bluetooth devices is that they will work with other Bluetooth enabled devices. If you switch from a Motorola phone to a Samsung phone (provided they are both Bluetooth capable) you will not have to be a new set of accessories in order for them to work with your phone.
5) Low interference is another bonus for these devices. People often find that wireless devices receive constant interference by others operating on the same frequencies. This is not an issue with Bluetooth as it utilizes technologies that limit the risk of this occurrence.
6) Lower energy consumption is another benefit of Bluetooth over similar devices. This means you will drain your battery less often or use less electricity in the use of your Bluetooth devices.
7) Bluetooth allows compatible devices to share data and voice communication. This means that you can drive more safely while talking on your cell phone.
8) You have the option of creating a Personal Area Network (PAN) with your Bluetooth device. This network operates within a 30 foot range and can have as many as 7 devices connected.
9) Bluetooth is emerging technology. As such, they are constantly offering better features and services. They are also behaving very wisely in creating consumer loyalty by making their new technologies compatible with existing technologies. This means that you can continuously upgrade your devices.
10) We've seen many fads come and go in the cellular community. Bluetooth, however, seems to be in it for the long haul. They are committed to raising the bar for wireless technology and have in the process gained many loyal customers and fans.

Advantages of Bluetooth Wireless Headset

In today’s busy world everyone tries to fit 24 hours of life into an 8 hour day, we are so busy with kids, jobs, spouses, deadlines and commitments. In this busy world we answer the Question, What are the advantages of having a Bluetooth wireless headset?

So, what are the advantages of having a Bluetooth wireless headset you ask?

Well the First and best advantage of a Bluetooth wireless Headset is that both of your hands are free to be of use to you at all times. Have you ever seen a person with a broken arm or no arm at all? Why limit yourself to only having one hand free as you go about your business? Think about this because this is exactly what you are doing when you talk on your cell phone without a Bluetooth wireless headset.

The second advantage of having a Bluetooth wireless headset is when you do any activity your focus is more on that activity than keeping your phone glued to your ear.

Another advantage of a Bluetooth wireless headset which is my favorite is that when you are making business (or personal) calls you are free to roam around the house or office to be more productive, if your are calling somewhere that puts you on hold (for the next available agent) without a Bluetooth you tend to sit around waiting for a extended period of time, being unproductive, but try this with a Bluetooth wireless headset. When I am at home trying to take of business I don’t just sit around on hold, now I will do whatever I can, the trash, clean, laundry, unload the dishwasher or anything else that needs to be done while I am on hold. This makes me extremely more productive in life and I never have much time so I am grateful when I can save a little, you should try this too.

The fourth advantage I can think of in owning a Bluetooth wireless headset is I seem to be more apt to call my family (sometimes I don’t know if this is good or bad) but overall this is a good thing my parents are getting older and I need to check in with them more often. I can usually accomplish this while still going about my daily business.

Another use for a Bluetooth wireless headset is, while driving it keeps your hands on the wheel and not plastered to your ear, personally I DO NOT recommend this except in emergencies, but I know many people are going to do this so at least it is safer than having one hand on the wheel, this is where my wife makes all of her phone calls on the way to work. But please remember driving is difficult enough without any distractions so the more things you try to do the more dangerous it becomes.

In this day and age of the internet and other outlets it is easier than ever to own a Bluetooth wireless hands free headset it does not matter which area of the country you live in urban or rural buying a Bluetooth is just a click away, many websites offer free shipping or discounts one site like this is my own www.BluetoothsRus.com we offer free shipping for orders over $49 and a discount for those who try to save a little more, ours is “UPS” which you enter in the checkout page of the site in the preferred customer code area, this will save you 10% off your entire order.

Another advantage of a Bluetooth wireless headset is not getting an expensive ticket, many states have current or pending laws regarding use of cellular devices while driving, if it’s illegal you will get an expensive ticket. Many states allow for hands free devices like Bluetooths. Bluetooths wireless headsets come in many styles and colors; also Bluetooths that clip on your cars visor or lay on a table are available for those who do not like to wear earpieces.

One last advantage to buying a Bluetooth wireless headset it they make Great Gifts, so if you need a gift that people will remember a Bluetooth is truly a great one. You can get most bluetooths for under $100 and many under $50. A gift like this is sure to be remembered for a long time and its so easy some web-sites offer gift wrapping (for a Fee) but the gift goes directly to the person and no hassles for you, so just sit back and take the credit,” What a country”.

In closing I hope I have answered the question: What are the advantages of owning a bluetooth wireless headset? Have a great day, and if you have any other questions on this topic feel free to e-mail me at the address on my website. Remember technology is a great thing and can save you a lot of time if used wisely so take advantage of any product that can make your quality of life better.

Bluetooth Technolgy, Infared, Electrical Devices and Their Applications

Bluetooth and 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 are not 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.

2) Bluetooth Applications

With Bluetooth being very popular with wireless, it is no wonder there are many applications available for the technology. Below, you will find the applications for Bluetooth.

a) Wireless networking between laptops and desktop computers, or desktops that are in a confined space and little bandwidth is needed.

b) Peripherals such as mice, keyboards, and printers.

c) 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.

d) The transfer of files, images and MP3, between mobile phones.

e) Certain MP3 players and digital cameras to transfer files to and from computers.

f) Bluetooth technology headsets for smart phones and cell phones.

g) Data logging equipment that transmits data to a computer via Bluetooth technology.

h) Sony Playstation 3 and Nintendo Revolution will both use Bluetooth technology for their wireless controllers.

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 is 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.

Bluetooth Technology in Mobile Phones

Phones are not merely used for calling and receiving calls. They are in recent times used for many reasons and purposes. There is a big expanding population of mobile users who goes by the additional features. It is worth to mention that this big mobile audience has been swayed by the additional features like music and bluetooth.

Every phones comes with music features that includes: Music Player supporting MP3, ACC, ACC+, eAAC+ & WMA formats, Polyphonic Ringtones (64 Voices) and MP3 Ringtones. The formats are important since it shows its compatibility. So users of the phone do not have to think about the formats the mobile would be supporting. The player can play all of the user’s favourite tracks at any time and at anywhere. There are absolutely no hassle-free functionalities in Bluetooth music phones.

There comes the bluetooth features which is again another very important feature being added in any mobile sets.

According to the technology experts, the definition of bluetooth is “Bluetooth is the name for a short-range radio frequency (RF) technology that operates at 2.4 GHz and is capable of transmitting voice and data. The effective range of Bluetooth devices is 32 feet (10 meters). Bluetooth transfers data at the rate of 1 Mbps, which is from three to eight times the average speed of parallel and serial ports, respectively.”

It is not that each and every user knows the working of Bluetooth; according to the mobileinfo.com “Bluetooth can be used to wirelessly synchronize and transfer data among devices. Bluetooth can be thought of as a cable replacement technology. Typical uses include automatically synchronizing contact and calendar information among desktop, notebook and palmtop computers without connecting cables. Bluetooth can also be used to access a network or the Internet with a notebook computer by connecting wirelessly to a cellular phone.”

Bluetooth protocols

L2CAP

L2CAP, which stands for Logical Link Control and Adaptation Protocol is used within the Bluetooth protocol stack. It passes packets to either the Host Controller Interface (HCI) or on a hostless system, directly to the Link Manager.

L2CAP's functions include:

• Multiplexing data between different higher layer protocols.
• Segmentation and reassembly of packets.
• Providing one-way transmission management to a group of other bluetooth devices.
• Quality of service (QoS) management for higher layer protocols.

L2CAP is used to communicate over the host ACL (Asynchronous Connectionless) link. Its connection is established after the ACL link has been set up.

BNEP

BNEP stands for Bluetooth Network Emulation Protocol, and is used for delivering network packets on top of L2CAP. This protocol is used by the PAN (Personal Area networking) profile.

RFCOMM

RFCOMM is the abbreviation for Radio Frequency Communication. The Bluetooth protocol RFCOMM is a simple set of transport protocols, made on top of the L2CAP protocol, providing emulated RS-232 serial ports (up to sixty simultaneous connections of a bluetooth device at a time). The protocol is based on the ETSI standard TS 07.10.

RFCOMM is sometimes called Serial Port Emulation. The Bluetooth Serial Port Profile is based on this protocol.

SDAP

SDAP stands for Service Discovery Application Profile. Discovers/queries device information , services,and the characteristics if the services to enable the establishment of the connection between two or more bluetooth devices

OBEX

OBEX stands for Generic Object Exchange Profile (GOEP) profile. OBEX (abbreviation of OBject EXchange, also termed IrOBEX) is a communications protocol that facilitates the exchange of binary objects between devices. It is maintained by the Infrared Data Association but has also been adopted by the Bluetooth Special Interest Group and the SyncML wing of the Open Mobile Alliance (OMA). One of OBEX's earliest popular applications was in the Palm III personal digital assistant. This PDA and its many successors use OBEX to exchange business cards, data, even applications.

Bluetooth Mobile Phones – Connectivity Simplified

The mobile phone industry is one of those many industries that is fast escalating the rungs of progress, courtesy of the evolving technology. Since the inception of the very first mobile phone on Earth, the industry hasn't ever looked back. Human beings are unfalteringly becoming prone to technological development, and the mobile phone industry is playing its part as a catalyst to the epidemic. Owing to this development, there is hardly any room left for fastidious consumer behaviour as all the mobile phone manufacturers are gulping a sip of the potion of technological progress to oust one another. Bluetooth technology is one of the numerous developments that has taken the mobile phone market by storm. No wonder almost every mobile phone in the market flaunts this technology today.

How does it work?

1.Bluetooth is a wireless network technology, through which you can transfer data in the form of radio waves between a Bluetooth enabled phone and computers, laptops, printers, and other compatible devices. 2.The maximum range within which data can be shared through it is 10 meters.

Why go for a Bluetooth mobile phone?

1.Bluetooth is the most hassle free network technology for data sharing between compatible devices. 2.Bluetooth allows users to share all kinds of data, such as image files, music files, video files, and text documents. 3.You can share data even on the move between mobile devices as Bluetooth runs on a wireless network technology. 4.Bluetooth technology ensures high speed and efficient sharing of data between Bluetooth enabled devices as the range of network is a meagre 10 meters.

With all these facilities available at the hands of a Bluetooth device wielder, it is hardly a surprise that Bluetooth has become such a big hit in today's world. And with technology rapidly gaining newer grounds in the mobile phone industry, Bluetooth technology may well go to higher levels of development.

Ten Benefits Of Bluetooth

Here, listed, are 10 advantages and reasons to use Bluetooth technology.
1. Wireless.
As you are probably already aware, there are many benefits and bonuses to using wireless devices. Along with improving safety as a consequence of eliminating wires once a necessity, wireless also offers you plenty of alternate advantages. If you are traveling and carrying your laptop or other wireless devices, you'll no longer need to worry unecessarily about bringing connecting cables.
2. Bluetooth is very affordable.
The technology of Bluetooth is cost-effective for companies to implement, which results in lower expenses for the company. These savings are then passed from the company on to you.
3. Bluetooth is fully automated.
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 may certainly begin to contact each other without you having to do anything.
4. Highly Compatible .
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 invariably avoid interference from other wireless devices. Bluetooth uses a practise known as frequency hopping, and also low grade wireless signals.
6. Low power consumption.
Consequently, because 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 flatten the battery.
7. Sharing voice and information.
The standard for Bluetooth will allow compatible devices to share information and voice communications. This is great for cell phones and head-sets, as Bluetooth makes it simple to be driving and talking on your cell handset.
8. Personal Network.
You can connect up to seven Bluetooth devices to each other within a range of up to 30 feet, forming a Personal Network. For a single room, you can also set up multiple Networks.
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, widespread wireless standard. With it now as popular as it is, you can rely on it being a standard 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 Headsets

The world is changing fast and so is everything around you. For instance, the existence of a wired world seems to be history with the invention and use of many wireless technologies. One such wireless technology is the Bluetooth Technology. In this article we will cover the Bluetooth headsets, which are fast getting popular and finding extensive use in the households. The Bluetooth headphones are based on a fairly new technology that is going to eliminate the need for wires and cables.

The bluetooth technology enables a short-range communication system that costs less money to operate and gives good results on short distances. The Bluetooth headsets can be used to fit several brands of electronic equipment. The Bluetooth headsets are fairly popular to give you a wire-free experience with your music system and the sound quality is even not compromised with the use of this technology. Here are many types of Bluetooth headsets available in the market and with the best quality you can afford to buy, you are guaranteed crystal clear sound each and every time that will make your listening a pure pleasure. With the technology getting better and better with each day, you can be sure that the latest headsets from Bluetooth will only have the best and latest equipment that is available.

One of the major problems, which used to occur while using a Bluetooth headset was of the noise it generated due to the disturbance in the flow of data. Bluetooth headphones today are great about blocking out unwanted noises while you are using them. The Bluetooth headsets, which eliminate the unwanted sound, are known as noise canceling headsets and are now widely used to cancel the noise and to get the best sound quality. It is important to choose the right kind of Bluetooth headset with all the features you require. Choosing the right bluetooth stereo headphones can make enjoying your favorite music and your favorite audio a lot more pleasurable as well as a great deal more comfortable. A noise dampening blue tooth stereo headsets will keep the noises of the outside world at bay while allowing your favorite music to flow through. This noise-dampening feature is one of the most important things to look for when shopping for a quality set of bluetooth stereo headsets. This ability to reduce outside noise and block out distractions will vary from model to brand, so it is important to shop around with this important feature in mind.

There are also many other factors to consider when shopping for the best bluetooth headsets. It is necessary to remember that when it comes to wireless and Bluetooth headphones one of the most important things to consider is the effective range of the headphones. The range plays an important in the Bluetooth and can define its productivity. It is therefore very essential to look for the Bluetooth headset range and also to compare various products on this feature.

How to share ring tones using Bluetooth

There is a ring tone you have been trying to get your hands on for a long time and you hear your best friend's phone belting it out. You simply must have it. Had you experienced these cravings a few years ago, you might have had to go a through long painful, arduous process of procuring the same through some time consuming means. Or for all you know you might just have to live with the craving for a while longer till something simple and uncomplicated came along. But today, with all the technological upgradation, sharing mobile phone ring tones is so much easier. Mobile phone handsets come bundled with softwares such as Infra – red, Bluetooth, and WAP which allow for a hassle free, wireless transfer between mobile phones, computers to mobile phones, and/or the internet straightaway.

The process of sending free ringtones between mobile phones is in effect not much different from the transfer of media between mobile phones. Bluetooth is undoubtedly the more advanced and popular method of transferring ring tones from one mobile phone to another. Bluetooth is software that comes bundled with mobile phone handsets and it allows the gadgets i.e. mobile phones, and computers, to talk to each other wirelessly. It is designed for low – power wireless communication over short distances. Bluetooth devices are capable of sending and receiving information from many devices simultaneously because of their ability to communicate with each other automatically. They are a preferred choice over the Infra – red because they can function without a line of sight. Bluetooth enabled devices generally need to be within a range of 10 metres from one another, although there are some more powerful ones that can detect gadgets within a range of 20 metres as well. The fact that the Bluetooth signals are relatively weak ensures that there is non – interference in the functioning of other gadgets that may be within the stipulated range.

To transfer mobile phone free ringtones using a Bluetooth, it is important to have both the mobile phones equipped with this wireless facility. The Bluetooth must be turned on on both the phones. This can be done by going through the MENU and then to the TOOLS folder. Within this folder there would be an option to select the CONNECTIONS. It is this folder that allows access to various wireless connections that could be established using the mobile phone. Bluetooth needs to be turned on here. Both the mobile phones between which the ring tone transfer is desired need to follow this procedure. Although there are a variety of phones available and each phone will have its own navigation process, the above mentioned procedure is largely true for most of the popular mobile phone models.

Both the users need to identify each other on the network they are both commonly logged on to and click on each other's name, thereby indicating to the mobile phone to 'talk' to that particular phone selected by them. Once the Bluetooth is activated and the corresponding gadget detected, it is required to go to OPTIONS and select SEND FILE VIA BLUETOOTH. Hitting on this tab will allow the user to browse through his MEDIA or GALLERY folder and select the file i.e. the mobile phone ring tone in this case, that must be shared with the corresponding gadget. Now these two enabled devices will quickly check whether they should be talking to one another. This is done through a security code e.g. 1234 or 0000 that needs to be fed in by the person sending the ring tone. Once that is done, the user with the other mobile phone that is waiting to receive the ring tone will be asked for a security code to be able to accept the request and initiate the transfer of files. The same security code i.e. 1234 or 0000 must be fed in by this user. When the corresponding matching security code is entered, the gadgets know for sure that the data must be transferred between them and data transfer will commence. The gadgets transfer this data by creating a network and switching frequencies in unison 1600 times a second within the radio frequency band used to transmit Bluetooth data.

Once the transfer of data is complete it is important to switch off the Bluetooth to prevent any viruses being transferred to the gadget through other devices in the range. This can be done through going to the CONNECTIONS folder again and turning it off.

Bluetooth Technology

Bluetooth technology is a type of the wireless technology that eliminates the need for the number of inconvenient cables and devices that are used to connect the computers, mobile phones, digital cameras, handheld devices and new digital appliances. Bluetooth enables the users to connect to a wide variety of telecommunication and computing devices easily, without cables.

It makes rapid ad hoc connections, automatic unconscious connections between two or more digital devices. Bluetooth provides the opportunity of using the mobile data in different applications. Bluetooth makes wireless communication between the two devices in a localized area of a room of office or home very easily. Bluetooth technology uses radio-based links and all the connections between the devices and invisible and instantaneous.

By Bluetooth technology your laptop can send print request to a printer in your next room. Bluetooth is actually a standard for wireless communication between the devices in a relatively small area and it is therefore works fine in the personal area network (PAN) using radio frequency.
Any two devices that follow the Bluetooth standard can communicate with each other. A number of the Bluetooth devices like digital camera, mobile phone and handheld pc can form a network. You can send emails to your mobile phones from your laptop without any physical connect between your laptop and your mobile phones.

Features of Bluetooth technology
• Bluetooth technology uses radio waves for communication in 2.4 GHz
• It supports multipoint communication not just point to point.
• Bluetooth works in a small area of 10-15 meters.
• Bluetooth offers speed of 1-2 Mbps.
• Bluetooth chipsets are less expensive though more expensive than IrDA.

How Bluetooth Technology Works

Bluetooth is a high speed wireless link technology that uses the radio waves. It is designed to connect the mobile phones, laptops, hand held devices and portable equipments with almost no work by the end users. Unlike infrared Bluetooth does not require line of sight between the connecting units. Bluetooth technology is a modified form of the current Wireless LAN technology and it’s more acceptable for its relative small size and low cost.

The current circuits are contained on a circuit board of 0.9 cm square and a much smaller single chip version is in development and soon it will be in use. The cost of the Bluetooth device is expected to fall rapidly. Bluetooth chip has to be equipped in many devices. In Bluetooth technology, small and inexpensive transceivers have been placed in the digital devices. The radio waves operate at 2.45 Ghz band on the Bluetooth devices. Bluetooth supports the data speed up to 721 Kbps and 3 voice channels. The Bluetooth chip can either be built into the devices or it can be uses as an adapter. In computer it can be used with the USB port. Each Bluetooth device has a 48 bit address from the IEEE 802 standards and the Bluetooth connections can be either point to point or multipoint. Bluetooth range is 10 meter but it can be extended up to 100 meters by increasing the power.

Bluetooth devices are protected from the external interference because they change their frequency up to 1600 times in a second. Bluetooth radio technology provides the bridge between the existing data network. Bluetooth guarantees security at the bit level and the authentication is controlled by the end user by using 128 bit key. An important face of the Bluetooth technology is that it instantly forms a network when two or more devices come closer in the range of each other.

Bluetooth Technology Benefits

Bluetooth technology is a convenient choice of communication in a wire free, short range environment. Bluetooth is a globally available standard for connecting the devices like mobile phones, digital cameras, laptops, MP3 Players, cars, stereo headsets etc. Bluetooth enable devices do not need to install any drivers. The key benefits of the Bluetooth wireless technology are its built-in-security, low cost, easy of use, robustness, and ad hoc networking capabilities.

The Bluetooth wireless technology is available globally. Many manufactures from the different companies are busy to implement the technology in their products. Bluetooth technology operates in the 2.4 Ghz, one of the unlicensed, industrial and scientific radio band. Bluetooth technology is a free of charge service but your mobile phones set should support the GSM and CDMA technology.

Today mobile phones have built in capabilities and Bluetooth functionalities in them. Bluetooth technology is available in the different range of the devices like mobile phones, automobiles, medical devices, industries and enterprises etc.

Due to the key features of the Bluetooth technology like low power consumption, low cost and wireless features make it more popular. Bluetooth technology does not require any fixed infrastructure and it is very simple to install and setup.

No wires are required to connect the Bluetooth devices. You can connect to other Bluetooth enabled devices anytime if they come in your range. Bluetooth wireless technology is widely supported and is secure wireless standard today. Bluetooth devices has built-in security features such as 128 bit encryption and pin code authentication when Bluetooth devices identify themselves they use the pin code when they first time connect.