Thursday, November 11, 2010

Bluetooth

The seemingly endless entanglement of data wires connecting today's electronic devices has become slightly less jumbled with introduction of Bluetooth technology and the creation of wireless data link.Thiis article develops into the implementation snd architure of bluetooth .It also describes the functional overview and applications of bluetooth.It gives significant advantages of bluetooth over other data transfer technologies such as IrDA and Home RF .It illustrates how a connection is made in bluetooth two environments.It also explains link security by Data Encrypotion.Finally it narrates how bluetooth will bring a new level of connectivity and convience when operating electonic devices.hese details in the article establish growing need for Bluetooth technology.Bluetooth is a method for data communication that uses short-range radio links to replace cables between computers and their connected units.Bluetooth is frequency raio technology utilizing the unlicensed 2.5GHz industrial,scientific and medical.Bluetooth was invented by L M Ericson of Sweden in 1994. The standard is named after Harald Blaatand.Bluetooth king of Denmark
Bluetooth attempts to provide significant advantages over data transfer technologies such as IrDA and home RF .IrDA is already popular inPC to pheripherals,but severly limited by short connection distance of 1m and the line of sight requirement for communication Du to its RF nature of bluetooth is not subjected such limitations.Linking of bluetooth device to another to another involves a series of inquiry and paging procedures.the inquiry process details the following steps.
*The bluetooth sends out an inquiry access code packet(inquiry packet)to search and to locate these devices.
*The existing Bluetooth devices already wihtin the area will accasionally enter an inquiry scan state of their own to troll for any inquiring devices
*When a device in the inquiry scan state receives an inquiry packet it will respond with a frequency hop synchronisation(FHS) packet i sent to the inquiry device.
Once inquiry is completed ,the paging progress follows:
*The inquiry Bluetooth device now wants to establish a connection with another bluetooth device.
*To successsfully locate and page target Bluetooth device,the paging device estimates the hop frequency and clock of the target Bluetooth device using the FHS packet received during inquiry.
*The page device pages the target device with target's device access code (DAC)thinks the target device is receiving and continues to do so until a connection is made
ADVANTAGES AND APPLICATIONS OF BLUETOOTH
Bluetooth can handle data and voice simulttaneosly.It is capable of supporting computers and their connected units >bluetooth is an open standard for wireless connectivity with supporters mostly from the PC and the cell phone industries.Its primary market is for data and voice transfer between communication devices and PC's .It is capable of supporting one asynchrous data channel and up to three synchrous voice channels,or one channel for both voice and data.Bluetooth finds in PC and peripherical networking,data synchronisationfor address books and calenders,home networking such as entertaining devices.This capability combined with adhoc device connection and automatic service discovery makes it a superoir solution for devices and Internet applications

1 comments:

Manimaaran P Pillai said...

Friend very informative in IT sector !!!

http://blogofmanimaaran.blogspot.com/

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