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VEHICLE TRUCK What is bluetooth really?
 

What is bluetooth really?

By: aaryn | Nov 10 2009 | 313 words | 2674 hits

Bluetooth is an open for exchanging data over short distance(using short radio waves) from fixed and mobile devices, creating personal area networks (PANs). It was originally conceived as a wireless alternative to RS232 data cables. It can connect several devices, overcoming problems of synchronization.

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Implementation

Bluetooth uses a radio technology called frequency-hopping spread spectrum, which chops up the data being sent and transmits chunks of it on up to 79 frequencies. In its basic mode, the modulation is Gaussian frequency-shift keying (GFSK). It can achieve a gross data rate of 1 Mb/s. Bluetooth provides a way to connect and exchange information between devices such as mobile phones, telephones, laptops, personal computers, printers, Global Positioning System (GPS) receivers, digital cameras, and video game consoles through a secure, globally unlicensed Industrial, Scientific and Medical (ISM) 2.4 GHz short-range radio frequency bandwidth. The Bluetooth specifications are developed and licensed by the Bluetooth Special Interest Group (SIG). The Bluetooth SIG consists of companies in the areas of telecommunication, computing, networking, and consumer electronics.

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Uses

Bluetooth is a standard and a communications protocol primarily designed for low power consumption, with a short range (power-class-dependent: 1 metre, 10 metres, 100 metres) based on low-cost transceiver microchips in each device. Bluetooth makes it possible for these devices to communicate with each other when they are in range. Because the devices use a radio (broadcast) communications system, they do not have to be in line of sight of each other.

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Bluetooth Headset

The Bluetooth wristband works as a bracelet and is capable of every brand Bluetooth mobile phone, when not in use it can perform trippy visualizations. The rest of the band is silica gel and can be changed, as there are different colours and sizes. They have a light that glow in different colours - red - when you receive a call. And with vibration. It can be applicable for every brand bluetooth mobile phone.

Internet reference:

http://en.wikipedia.org/wiki/Digital_camcorder#Digital_camcorders_and_operating_systems

Editor: Jodie


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