Sunday, 9 September 2012


Introduction to Bluetooth

Wired interfaces have long dominated the connection of peripherals to computers. For many types of connections a wireless solution would be easier to handle the communication with small battery operated devices, for example to connect your mobile phone to a PC to synchronize the phone book or for headsets to listen to your favorite music.
Infrared serial connections have been around for a long time. The first mass use of IR serial connections was for the remote control of the television set. IR connections are good for this specific type of operation where there is a line of sight between the two devices and the data transfer speed is low. For connections at higher speed—for example to transfer high quality audio—or for situations where there is no direct line of sight like with portable headsets, IR is not the best technical solution. With infrared light there is also the problem that the communication can easily be intercepted by other devices, or even tampered with. One game children like to do is standing outside of the house with a second remote control and zapping through the available channels on television while mom and dad are sitting in the house not knowing what is happening to their TV. This kind of interception and hostile takeover should not be possible with low-power datatransmission for computers. This is why two developers ofEricsson Mobile Platforms came up with a low-power solution using radio transmission calledBluetooth

Bluetooth communication speeds

As with all communication interfaces, fast is never fast enough. Therefore a steady increase in speed is seen with each new release of the Bluetooth standard. Although the system has never been developed for high speed connections, current Bluetooth systems communicate in the megabit per second range. The design speeds of several versions of the standard are grouped in the following table.
Bluetooth communication speed
VersionYearData rate
1.220031 Mbit/s
2.0 + EDR20043 Mbit/s
3.0 + HS200924 MBit/s


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 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’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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