With new electrical devices being produced every day,the problem of connecting things is becoming moreand more complex in nature. The system that comprisescomputers and other electronics makes use of varietiesof wires, cables, etc.
These parts will communicate through light beams,lasers, radio signals, and infrared. The problemhowever, is the devices and technology is often theconnection between each component. Therefore, mostelectronic systems aren't used to their full extentdue to the problems and imperfections.
To help simplify things, a solution was created -the solution of Bluetooth. Bluetooth is wirelessand automatic, offering users a variety of featuresthat have simplified the art of connection. Bluetoothhas revolutionized the standard methods of connectingthings to enabling almost anything to be connectedto a single system.
Aside from Bluetooth, there are other ways of connecting wireless devices. One example of suchis the IR or infrared. Infrared allows low frequencylight waves to transmit signals to another component.This technology is easy to create and the cost ofputting the IR device into a system is rather low.
Infrared technology is a one to one process. Dueto the limitation, you may only send signals from onedevice to another, similar to a television set andremote control. You can only transmit signalsbetween the two although not with a seperate system.
Aside from the fact that these two natures of infrared are obstacles to acquiring results, thesesame qualities have worked in advantage to theconnection. Infrared devices need to be lined updirectly, meaning too little interference can occurbetween the transmitters and receivers.
The technology behind Bluetooth works by transmittingsignals through low frequency radio signals. Thepath of communication is working on 2.45 GHz, whichis the same frequency band used in ISM devices.
Wednesday, August 29, 2007
Saturday, August 25, 2007
Bluetooth Operation
Bluetooth is a high speed, low powered wireless linktechnology that's designed to connect phones or otherportable equipment together with little to no workrequired by the user. Unlike infrared, Bluetoothdoesn't require line of site positioning to work.
Current prototype circuits are contained on a boardthat is 0.9 cm square, with a much smaller circuitboard being developed.
When one Bluetooth device comes in contact withanother, they will automatically exchange addressesand details of capability. Then, they can establisha 1 MB link with security that they will use asrequired. The protocols involved with handle bothdata and voice, with a very flexible topography.
The technology achieves its goal by embedding tiny,non expensive short range tranceivers into the devices available today. The radio operates on the2.45 GHz frequency band, and supports up to 721KBps, along with three voice channels.
Each devices offers a unique 48 bit address fromthe IEEE 802 standard, with the connections beingpoint to point or multipoint. The max range is 10 meters, although it can be extended to 100 meters by increasing the power. The devices arealso protected from radio interference by changingtheir frequencies, also known as frequency hopping.
What's important, is the fact that Bluetooth devices won't drain battery life. The specificationtargets power consumption of the device, limitingthe drain on the battery. The radio chip willconsume only 0.3mA in stand by mode, which is lessthan 5% of the power that standard phones use.
Bluetooth will also guarantee security at the bitlevel. The authentification is controlled by theuser via a 128 bit key. The radio signals canbe coded with anything up to 128 bit. With thefrequency hopping, Bluetooth is already very hard to listen into.
The baseband protocol is a combination of bothcircuit and packet switches. Slots can be reservedfor synchronous packets as well. Each packet will be transmitted in a different hop frequency.Normally, a packet covers a single slot althoughit can be extended to cover up to five slots.
Bluetooth can also support data channels of up tothree simultaneous voice channels. Therefore,it's possible to transfer the data while you talkat the same time. Each individual voice channelwill support 64 KB.
From a technical standpoint, Bluetooth is verydifferent indeed. It's the best wireless methodin the world, surpassing even infrared. For communication on the go, Bluetooth is indeedvery hard to compete with.
Current prototype circuits are contained on a boardthat is 0.9 cm square, with a much smaller circuitboard being developed.
When one Bluetooth device comes in contact withanother, they will automatically exchange addressesand details of capability. Then, they can establisha 1 MB link with security that they will use asrequired. The protocols involved with handle bothdata and voice, with a very flexible topography.
The technology achieves its goal by embedding tiny,non expensive short range tranceivers into the devices available today. The radio operates on the2.45 GHz frequency band, and supports up to 721KBps, along with three voice channels.
Each devices offers a unique 48 bit address fromthe IEEE 802 standard, with the connections beingpoint to point or multipoint. The max range is 10 meters, although it can be extended to 100 meters by increasing the power. The devices arealso protected from radio interference by changingtheir frequencies, also known as frequency hopping.
What's important, is the fact that Bluetooth devices won't drain battery life. The specificationtargets power consumption of the device, limitingthe drain on the battery. The radio chip willconsume only 0.3mA in stand by mode, which is lessthan 5% of the power that standard phones use.
Bluetooth will also guarantee security at the bitlevel. The authentification is controlled by theuser via a 128 bit key. The radio signals canbe coded with anything up to 128 bit. With thefrequency hopping, Bluetooth is already very hard to listen into.
The baseband protocol is a combination of bothcircuit and packet switches. Slots can be reservedfor synchronous packets as well. Each packet will be transmitted in a different hop frequency.Normally, a packet covers a single slot althoughit can be extended to cover up to five slots.
Bluetooth can also support data channels of up tothree simultaneous voice channels. Therefore,it's possible to transfer the data while you talkat the same time. Each individual voice channelwill support 64 KB.
From a technical standpoint, Bluetooth is verydifferent indeed. It's the best wireless methodin the world, surpassing even infrared. For communication on the go, Bluetooth is indeedvery hard to compete with.
Friday, August 24, 2007
bLuE$T0rM!!
Bluetooth Definition
src="http://pagead2.googlesyndication.com/pagead/show_ads.js">
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 aminumum 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 infrared 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's 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.
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 aminumum 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 infrared 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's 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.
src="http://pagead2.googlesyndication.com/pagead/show_ads.js">
Tuesday, August 21, 2007
Subscribe to:
Comments (Atom)
