Blue Tooth Technology - The success storyby 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.
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