Bluetooth: A History
Wireless bluetooth technology was created in early 90′s by technicians at Ericsson in Sweden. Afterwards, a group of organizations including Ericsson, IBM, Intel, Toshiba, and Nokia put together the Bluetooth Special Interest Group(SIG) in order to formalize the technology to make it an industry standard.
Bluetooth relies on a frequency-hopping spread spectrum radio technology in order to interact wirelessly between a master gadget and as many as seven slave devices. Because of this your main device, may it be a smart phone, a notebook, or and iphone, can have as many as seven distinct Bluetooth devices connected with it at the same time. Although it may seem that all devices are doing the job at the same time, the master device really talks to each slave system in quick succession. It happens so rapidly you won’t ever notice, even while playing tunes on Bluetooth earbuds.
Bluetooth is in fact a short-range wireless transmission technology. Products have an average range of about thirty ft. Of course, the farther away you are, the less quality the transmission can have. It’s usually no huge concern because Bluetooth products are intended to work in close proximity to the master unit. Examples of this include a wireless mouse and keyboard for your computer, or wireless stereo speakers for your home stereo system.
Considering that Bluetooth technology boasts such a restricted range, it utilizes hardly any power. This is very important, because so many Bluetooth devices are small-scale and don’t have room for large batteries. This allows you to use your device for long periods of time before you must switch batteries or charge.
We have seen 3 major variations of Bluetooth, all variants are backwards compatible with prior variants.
Bluetooth v1: Bluetooth had a difficult start. It was without vital security, was slow-moving, and was susceptible to interference. Throughout subsequent updates v1.1 plus v1.2, many of these original bugs ended up fixed.
Bluetooth v2: Launched in ’04, the main difference in this particular version was swifter data transfer with out impacting power consumption. In version v2.1 secure simple sharing ended up being announced which enhanced the pairing experience whilst fortifying security.
Bluetooth v3: Put into practice through the SIG in 2009, Bluetooth 3.0 data transfer rate as high as 24 Mbit/s, 8 times better as compared with version 2. This can be done by simply combining the Bluetooth with 802.11 Wi-fi technology. Look for Bluetooth devices equipped with a +HS on the package, which means the product supports this particular new high-speed technology.
Read more concerning Bluetooth on Wikipedia and the official Bluetooth website. With Bluetooth currently being extremely versatile, standardized, and using minimal electrical power, it’s the prefect technology for close range wireless technology.
There are many devices that use this technology including Bluetooth earbuds, speakers, and computer peripherals. Check out more info on Bluetooth online.
June 12, 2011 | Posted by Matt Smith
Categories:
Tags:
Recent Comments