Showing posts with label Bluetooth. Show all posts
Showing posts with label Bluetooth. Show all posts

Thursday, June 19, 2008

The Bluetooth Solution

The technology of Bluetooth will take small area networking to the next level by removing the need for user intervention and help keep transmission power very low to preserve battery power. Each transmission signal to and from your cellular phone will use just 1 mw of power, giving you plenty of space on your battery to talk.



Bluetooth is a networking standard that will work on two levels:
  1. It will provide agreement at the physical level, as Bluetooth is a radio frequency standard.
  2. It will provide agreement at the level of protocol, where products will have to agree on when bits are sent, how many are sent, and how the parties in conversation can be sure the message recieved is the same one that was sent.
The major draws to Bluetooth is the fact that it's wireless, inexpensive, and automatic. There
are other ways to get around wires, including infrared. Infrared uses light waves of a lower frequency than the human eye can, and is normally used in television remote controls.

The technology of Bluetooth is intended to get around the problems that normally come with infrared systems. The 1.0 older standard of Bluetooth has a max transfer speed of 1 MB a second, while the 2.0 Bluetooth standard can manage up to 3.0 MB a second. To make things better, 2.0 is compatible with 1.0 devices.

As a solution to wireless, Bluetooth will eliminate the need for messy cords, keeping everything nice and neat. It's perfect for those who like to talk on cell phones, as you no longer need to hold the phone next to your ear - which is great for those who travel a lot.

Bluetooth Versions

Version 1.1 and earlier
Since the technology of Bluetooth was introduced in 1998, several specification versions have been released. Versions 1.0 and 1.0B had too many issues and problems for manufacturers to develop devices for Bluetooth. The main issue was the lack of communication among the devices.

The core specification version 1.1 is the first successful operating version of Bluetooth. Version
1.1 corrected a majority of the bugs and problems found in earlier versions.



Version 1.2
Many of the newer Bluetooth devices, such as the newer cell phones are being sold with the newer Bluetooth version 1.2. This version offers backward compatability with Bluetooth 1.1, faster transmission speeds, received signal strength, and a host controller interface (HCI) support for 3 wire UART.

Bluetooth version 2.0
It's true that there may be multiple communication technologies, although they all share one common trait - faster is better. Bluetooth specialists realized this, and therefore worked on improving the speeds of version 1.2. The newest version, version 2.0 + EDR (Enhanced Data Rate) was accounced in 2004 and became available in late 2005.

Version 2.0 delivers data transfer rates of up to three times that of the original version of
Bluetooth. Version 2.0 also provides enhanced connectivity. With Bluetooth 2.0 + EDR, you'll be able to run more devices at the same time - with more efficiency.

Computers and even computer related devices are expected to be some of the first devices to encorporate Bluetooth 2.0 + EDR, followed of course by audio and imaging devices.

Version 2.0 is backward compatible with previous versions, three times faster, and offers an
enhanced data rate of 2.1 MB a second. It also offers broadcast and multicast support, along with a further enhanced bit error rate performance, making it the best Bluetooth has ever seen.

Bluetooth Definition

Bluetooth is a specification for the use of low power radio communications to wireless phones,
computers, and other network wireless devices over short distances. The name Bluetooth is actually borrowed from Harald Bluetooth, a Denmark king more than 1,000 years ago.




The technology of Bluetooth was primarily designed to support simple wireless networking of devices and peripherals, which includes cell phones, PDAs, and wireless headsets. The wireless signals that are transmitted by Bluetooth cover short distances of up to 30 feet, generally communicating less than 1 MPps (Mega Byte per second).

The networks of Bluetooth feature dynamic topology called PAN or a piconet. The piconets contain a minumum of two and a maximum of eight peer devices. The devices will communicate using protocols that are part of the specification.

Even though the Bluetooth standard will utilize the same 2.4 GHz range as 802.11b and 802.11g,
the technology isn't suitable for a Wi-Fi replacement. When compared to Wi-Fi, Bluetooth is much slower, limited in range, and actually supports less devices.

For short range devices, Bluetooth is rapidly becoming the best. The technology is more popular
with cell phones, as Bluetooth headsets are the way to go these days. To use Bluetooth, your cell phone will need to have it enabled, or an infared device somewhere on the phone.

Upcoming devices are utilizing Bluetooth as well, such as PS3 and the Nintendo Revolution. The
wireless controllers will be Bluetooth enabled, which will give players the cutting edge.

If you own a cell phone or other wireless device, you should look into Bluetooth. The technology
is nothing short of spectacular, making it something that will be around for years and years to come. As technology gets bigger and bigger, you can expect Bluetooth to advance as well.

10 Benefits Of Bluetooth

Below, are 10 benefits and reasons to use Bluetooth technology.

1. Wireless
As you probably already know, there are many benefits and advantages to using wireless devices. Along with improving safety as a result of eliminating wires you don't need, wireless also offers you plenty of other advantages. When traveling with your laptop or other wireless devices, you'll no longer have to worry about bringing connection cables.

2. Bluetooth is actually inexpensive
The technology of Bluetooth is cheap for companies to implement, which results in lower costs for the company. These savings are then passed from the company on to you.

3. Bluetooth is automatic
Bluetooth doesn't have you set up a connection or push any buttons. When two or more devices enter a range of up to 30 feet of each other, they will automatically begin to communicate without you having to do anything.

4. Standardized protocol
Bluetooth is standardized wireless, meaning that a high level of compatibility among devices is
guaranteed. Bluetooth will connect devices to each other, even if they aren't the same model.

5. Low interference
Bluetooth devices almost always avoid interference from other wireless devices. Bluetooth uses a technique known as frequency hopping, and also low power wireless signals.

6. Low energy consumption
As a result of Bluetooth using low power signals, the technology requires very little energy and will use less battery or electrical power as a result. This is an excellent benefit for mobile devices, as Bluetooth won't drain the battery.

7. Sharing voice and data
The standard for Bluetooth will allow compatible devices to share data and voice communications. This is great for mobile phones and headsets, as Bluetooth simplifies driving and talking on your cell phone.

8. Instant PAN (Personal Area Network)
You can connect up to seven Bluetooth devices to each other within a range of up to 30 feet, forming a piconet or PAN. For a single room, you can also set up multiple piconets.

9. Upgradeable
Upgradeable is the standard for Bluetooth. There are newer versions of Bluetooth in the works,
which offer many new advantages and backward compatible with older versions.

10. The technology stays
Bluetooth technology is a world wide, universal wireless standard. With it being as popular as
it is, you can count on it being around for years to come. As more and more devices start to use
Bluetooth technology, more manufacturers will be eager to make their products compatible. A chain reaction will occur, making Bluetooth the standard for cutting edge wireless.