by Aswathi P P (Software Programmer, Excellone Technologies)

Blue tooth has been regarded as a new wave in the IT sector from the day of its origin. Blue tooth is continuing its success story. Toshiba introduced blue tooth in September 2000 to consumers for $ 199. The new technology is supported by SIG (Special Interest Group). SIG founded in 1998 consists of 2000 members who have access to the Blue tooth specifications (information needed to make a blue tooth product). The SIG works to promote the Blue tooth technology and consists of members like IBM, Inet, Microsoft, and Nokia.

The benefit of Blue Tooth Technology

When put in simple terms blue tooth device comprises of a base band processor, a radio and an antenna. The base-band processor converts the data into signals, which radios can decipher. These signals are changed into a frequency of 2.4 giga hertz, which the radio transmits through the antenna. The antenna of another blue tooth device, within at least 30 feet distance, receives a transmitted signal in the air. The signals are processed in the reverse order.

Blue tooth specification is a de facto standard, which contains the information needed to ensure that the devices supporting the Blue tooth wireless technology can communicate with each other worldwide. Volume I – Core and Volume II – Profiles are the two parts of the document, in which the Core part specifies components like the radio, base-band, link manager, service discovery protocol, and the Profiles part consists of the protocol and procedures needed for various types of blue tooth operations.

Faster connectivity and Speed

The Blue Tooth Technology facilitates fast low-power microwave wireless link technology. It is moulded to connect phones, laptops, PDA’s and other portable equipment with less effort. Support speeds are of 1-2 Mbps today, but are capable of offering higher speeds in future.

Cost effective

Blue tooth technology makes use of inexpensive and small sized, modified version of LAN techniques. The present manufacturing cost of $20, is expected to fall in the coming years.

Multi-Point link

Connections from a blue tooth device can be made point-to-point or multi-point. The range of the device can be raised to 100 meters from 10 meters by using power.

No line of sight is needed

The Blue Tooth technology makes use of invisible radio waves (2.4 GHz band), which creates instantaneous automatic radio link. This eliminates, the use of numerous and inconvenient cable attachments.

Saves Power

Blue tooth device utilizes a hold mode consuming 30 micro amps to the active transmitting range of 8-30 milliamps. The radio chip needs, 3% less power used by standard mobile phone (0.3 ma in stand by mode). And based on traffic volume, the chips automatically shift to low power mode; thereby saving power. Based on power, the blue tooth devices are classified as three power class 100mw, 2.5mw, and 1mw whose maximum outputs are 20dBM, 4dBM, and 0dBM respectively.

Universal link

Blue tooth radio makes its link robust in a noisy radio frequency environment through its fast acknowledgment and frequency – hopping scheme. Blue tooth needs shorter packets and hops faster. It also offers a global bridge to the prevailing data networks, a peripheral interface, and a mechanism to form small private ad hocs grouping of connected devices away from the fixed network infrastructures.

Secure data and safe transmission

Blue tooth radio transmissions confirm to safety standards, in matters relating to its effects on human body. It does not cause any nuisance to other telecommunication networks or to humans, either. It also guarantees security and authentication by using 128-bit key.

Having understood the long standing success of Blue Tooth Technology, it is upto you to make a decision about creating a phenomenal success in your software business ventures.