Bluetooth and Infrared in Mobile Phones

The advancement in technology has made possible so many things, which otherwise would not have been imaginable. Mobile phone is one such example of cutting edge technology. A device that was initially used for wireless communication, mobile phones now have so many functionalities. You can play music, take snaps, listen to FM, play movies, surf the web, send emails, etc with mobile phones these days. You can also transfer files to other mobile phones and pertinent devices. Bluetooth, Infrared and USB cables enable you to transfer data with ease.

File transfer via Infrared has certain limitations like its requirement of a free line of sight. Your infrared port should be pointed towards the other phone you wish to connect. Also it should be point -to-point. Another disadvantage here is that only 2 units at a time can communicate. Even USB cables have their constraints. It is here that Bluetooth outshines both Infrared and USB.

Bluetooth is a wireless technology that allows phones, computers and other devices to interact with each other over short distances. It is an economical way of exchanging information between devices.

Its priorities include sending photos from mobile, exchanging business cards, sending voice messages, satellite navigation using GPS, etc.

In the case of Bluetooth, the devices need not be in line of sight, it just have to be within the range of each other, say about 10 metres. Bluetooth works by using radio chips. To ensure security and prevent eavesdropping Bluetooth devices frequently change radio frequency, and also these devices have individual Ids stating that before they can exchange data, you have to enter a PIN number to authorise the connection. It is an amazing form of wireless technology. Apart from being wireless, affordable, energy efficient, it also stands out to have minimal interference, easy automation and compliance with universal standards.

Bluetooth 2.0 enables high speed data transfer, and reduces power consumption by about half and is a cheaper proposition than WiFi.