Bluetooth Technology

Because it meets the basic needs of connectivity in close range, Bluetooth has a very bright future ahead of it.  Bluetooth is actually the result of initiatives from nine leading ommunications and computer industry giants, including 3-COM, Sony, Lucent, IBM, Nokia, Microsoft, etc. Since the forming of the original group, more than 1,800 manufacturers around the world have joined the initiative.  According to reports, the Bluetooth technology is expected to be built into more than 100 million devices, with over 670 million enabled Bluetooth devices. Resulting from the amazing success of WAP (Wireless Application Protocol), the adoption of smart phones and hand held devices, Bluetooth can easily have an amazing impact on your day to day life.  Bluetooth is one of the key technologies that can help to make the mobile information society happen, by blurring the possibilities between home, the office, and the outside world. The seamless integration and connectivi...

The technology of Bluetooth will take small area networking to the next level by removing the need for user intervention and help keep transmission power very low to preserve battery power.  Each transmission signal to and from your cellular phone will use just 1 mw of power, giving you  plenty of space on your battery to talk. Bluetooth is a networking standard that will work on two levels: 1. It will provide agreement at the physical level, as Bluetooth is a radio frequency standard. 2. It will provide agreement at the level of protocol, where products will have to agree on when bits are sent, how many are sent, and how the parties in conversation can be sure the message recieved is the same one that was sent. The major draws to Bluetooth is the fact that it's wireless, inexpensive, and automatic. There are other ways to get around wires, including infrared.  Infrared uses light waves of a lower frequency than the human eye can, and is normally used in te...

Bluetooth is easily the best in wireless handheld technology.  When it comes to learning, Bluetooth can get quite complicated.  To help you, you'll find the key learning points of Bluetooth below: 1. Bluetooth is an energy efficient, low overhead communication protocol that's ideal for interdevice communications. 2. Unlike infrared, Bluetooth doesn't require a line of sight. 3. Depending on the implementation, Bluetoothcan have a range of up to 100 meters. 4. The specification of Bluetooth consists of a Foundation Profile Document and a Foundation Core Document. 5. The protocol stack for Bluetooth consists of core protocols, cable protocols, and even adapted protocols. 6. The transmitter operates around the 2.4 GHz frequency band. 7. The data channel will change frequency, or hops, 1,600 times in a second, between the 79 allocated channels in the ISM band. 8. Bluetooth utilizes a spread spectrum frequency hopping RF characteristic to ensure that i...

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 obstructions. 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 theapplication la...

Bluetooth devices will normally operate at 2.4 GHZ in the license free, globally available ISM radio band.  The advantage to this band includes worldwide availability and compatibility.  A disadvantage to this however, is that the devices must share this band with other RF emitters.  This includes automobile security systems, other wireless devices, and other noise sources, such as microwaves. To overcome this challenge, Bluetooth employs a fast frequency hopping scheme and therefore uses  shorter packets than other standards within the ISM band.  This scheme helps to make Bluetooth communication more robust and more secure. Frequency hopping Frequency hopping is basically jumping from frequency to frequency within the ISM radio band.  After a bluetooth device sends or receives a packet, it and the device (or devices) it's communicating with hop to another frequency before the next packet is sent.  This scheme offers three advantages: ...

Constantly evolving, the technology of Bluetooth started off as a basic wireless connection standard but has since then been adapted and proven with many different uses and functions. A good example is Bluetooth for cell phones.  It enables mobile users to connect to their hands free headset without using wires.  Bluetooth technology will also allow mobile phone users to connect with their hands free kit as well. Another handy use of Bluetooth is file sharing.  It allows the sharing of files between two cell phones, between a cell phone and computer, which makes the sharing of files a snap.  If you have a cell phone and computer, you can easily transfer data between the two. Say for example you wanted to put an MP3 on your phone from your computer you could do it easily  with Bluetooth.  All you would need is a Bluetooth adapter for your computer.  It doesn't stop with the  swapping of files either,as you can use your computer ...