Bluetooth



             


Friday, July 25, 2008

Infrared And Bluetooth: Connecting Things Easier

With different electrical devices produced everyday, the problem of connecting things is becoming more and more complex. The system that comprises the computers and other electronic devices makes use of varieties of connecting wires, cables and the likes. These parts communicate trough light beams, lasers, radio signals and infrared. However, the problem with this devices and technologies is often the connection between each component. Thus, most systems are not used to their full extent due to complexities.

To simplify things, a solution was created to streamline the process of connections- bluetooth.

Bluetooth is wireless and automatic and offers users with varieties of excellent features that has recreated the art of connection. It has revolutionized the standard method of connecting things that virtually anything can be connected on a single system. From computers to mobile phones and from keyboards to headphones by means of wireless, automatic and inexpensive connection.

Other than the bluetooth technology, there are other ways of connecting things. Take for example the infrared or IR. It allows low frequency light waves which the eye can no longer interpret to transmit signals to another component. The technology is easy to create and cost of incorporating the IR device into a system is in barest minimum. Yet it has limited operations that seldom obstructs the process of connection.

Infrared technology is one to one process. Due to this limitation, you may only send signals from one component to another, like the case of the television set and the remote control. The same is true between laptops and desktops. You may only transmit signals between the two but not with another separate system, say a PDA through simultaneous actions.

It also works only on the line of sight principle wherein one has to point the infrared device directly to the host system to achieve a desirable result.

In spite of the fact that these two natures of infrared technology are obstacles to acquiring results, these same qualities have worked in advantage to connection. Because infrared devices need to be lined up directly on opposing locations, too little interference occurs between transmitters and receivers. The one to one principle on the other hand is designed to transmit signals only to the original recipient. Given that there are varieties of infrared recipients in a location, the intended recipient alone will receive the signal coming from a transmitter.

However, technology was not contented with what infrared offers. They resolved these limitations through creating the bluetooth solution.

Bluetooth technology works by transmitting signals via low frequency radio signals. The path of communication is approximately working on 2.45 gigahertz. The same frequency band is utilized in ISM devices.

The design of the technology was such that it has created a new system that does not interfere with the other devices that make use of the same frequency band (e.g. ISM). One way of doing this is the programming of the bluetooth technology to only transmit signals that has 1 milliwatt or less. Beyond this, other systems may be affected. By comparison, cell phones and other mobile devices send signals at a rate of 3 milliwatts and more.

The standard range of the bluetooth is around ten meters. This lessens the possibility that interference between device may occur. With this low transmission, it is still possible for the user to transmit bluetooth signals between obstructing walls.

Bluetooth in many ways have contributed much in connecting individual systems without being bothered by the bulk of the cables and wires.
Robert Thatcher is a freelance publisher based in Cupertino, California. He publishes articles and reports in various ezines and provides bluetooth resources on www.about-bluetooth.info.

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Monday, July 14, 2008

Bluetooth Technology Is Likely To Be The Answer You Are Looking For!

Several large and well-known companies developed Bluetooth as an industry standard. The standard was introduced in order to specify how hand held devices, computers and other peripherals would communicate with one another without the need for cables. It uses short distance radio signals in order to generate communication between one device and another in close proximity. It is already widely used around the world in particular in bluetooth headsets, used for speaking on your cell phone when driving. However, data can be passed between any bluetooth devices within range.

Bluetooth is the simplest and most widely available technology of its kind. This means that manufacturers can build bluetooth-enabled devices quickly and effectively and pass this saving directly on to consumers. It is also extremely convenient and bluetooth devices are usually incredibly small. This is why it is used in hands free headsets for use with cell phones.

Because bluetooth is the industry standard, this means that it is widely accepted and regularly used by companies from all over the world for many different reasons. Because it is so easily accessible and the transfer of data from one bluetooth device to another is completely free it is the most popular option. It is also incredibly easy for consumers to use and in many cases it is simply a case of turning the bluetooth devices on and then sending the data as required.

Due to 128-bit encryption and adaptive frequency hopping, bluetooth is a secure method of transporting data over short distances. Whether you want to transfer files from your notebook to your computer or you want to talk on your cell phone while you are driving, bluetooth technology is likely to be the answer you are looking for. Businesses and individuals all around the world, use bluetooth on a regular basis.
Lavinia Snider is the editor of Bluetooth Master. Find out all about bluetooth, wireless cell phones, wireless headphones, and more

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Bluetooth gps vs. cf gps


For some people there is a debate over which to choose a Bluetooth gps receiver or a compact flash gps receiver. I have used both so I am writing from experience. There seem to be quite a few advantages a Bluetooth gps receiver has over a cf gps receiver.

The main advantage would be versatility, you can use a Bluetooth gps receiver with a Bluetooth pda as well as a compatible bluetooth mobile phone whereas with a cf gps receiver you are limited to only a compatible pda as mobile phones usually don't have a cf slot.

Another advantage is with regards to battery life, some bluetooth gps receivers have exceptional battery life lasting up to 26 hours, some mobile phones also have a long life, although a pda won't last anywhere near that, when using a cf gps receiver the pda battery is usually depleted faster as the it has to also power the cf receiver since the cf receiver can't work on its own

The third consideration is convenience, one can find some new gps receivers that are extremely small, the holux gpslim 236 comes to mind, because of their size and sensitivity you can stick them in your pocket and still get a very good signal so you don't have anything sticking out of the pda as is the case with a cf gps receiver.

Another thing to consider is that a lot of newer pdas seem to be loosing the compact flash interface, a good example is the fujitsu siemens loox 720, it has being rumoured that the loox 720 replacement won't be including a cf interface. My conclusion would be it seems that manufacturers don't consider the cf interface that important to include in newer pdas, kind of like being phased out so it might not be a good idea to invest in cf devices

My final argument would be that when it comes to using a gps receiver for driving, it is easier to position a bluetooth gps receiver in a convenient position where it can receive a better signal than with a cf gps receiver because since the cf gps receiver is fixed to the pda, you are limited by how much you can move the pda around and still have a good view of the pda screen.

Based on all these facts I would consider a bluetooth gps receiver a better choice to a cf gps receiver.

Francis Ononye writes about bluetooth gps receivers at http://www.bluetoothgpstips.com

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Sunday, July 6, 2008

Bluetooth - Description

Buletooth is a telecommunications technology that allows computers, mobile phones, PDAs, and other enabled devices to connect wirelessly over short distances, and exchange digital information. Bluetooth connections take place over a 2.4 GHz frequency, and have a range of approximately 10 meters (33 feet).

Ericsson, Intel, Nokia, and Toshiba jointly developed the Bluetooth technology, and it was first made available in 2001.


Jeremy Maddock is the owner of a quickly growing telecommunications news website - http://www.teleclick.ca


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