Bluetooth Devices

How to Connect Bluetooth Devices?

How to Connect Bluetooth Devices?

Bluetooth is a wireless technology that can connect electronic devices anywhere, at anytime, be it at the office, home or travel – Bluetooth technology will give a hand and for this purpose Bluetooth technology is becoming more common around the world. If you are buying any new technology, you won’t be surprised to find that it is already Bluetooth-enabled. Now-a-days, most devices implement Bluetooth because it offer a quick and effective form of communication and the way it functions is also quite simplistic.

Many manufacturers have started including Bluetooth facility in their devices, be it an MP3 Player, Laptop or Cell Phone. The Bluetooth device can function within 100 meters and operates in the radio frequency device. The Bluetooth technology is designed to function in a simple way and offer secure data transfer with the typical frequency of 2.4GHz.

Bluetooth devices come with an adapter that is usually built into the device. It can also be in the form of a card that can be sued to connect to the device. When two Bluetooth devices come within communication range, they make use of their link manager to find out each other and carry out activities such as link setup and packet size negotiation. There is a master-slave setup between two Bluetooth devices for the purpose of communication establishment.

Connecting two Bluetooth-enabled cell phones is fairly easy as you just have to turn on the device’s Bluetooth facility in both devices. Specify the option for sending the message or file using Bluetooth option. The cell phone will begin a search automatically and search for devices in its range. Select the device to which you want to send the message and then proceed to send it. If you wish to communicate through Bluetooth from a device that is not Bluetooth-enabled, it is necessary to install Bluetooth drivers. These drivers will convert the device into one that can function just like a regular Bluetooth-enabled device.

There are several advantages in using Bluetooth for information transfer. The data transfer process happens securely and though data transfer happens wirelessly, data loss is minimal. Bluetooth devices are inexpensive and no extra fees are charged for using Bluetooth facility. Bluetooth devices are compatible with each other and can connect with each other automatically. Since Bluetooth makes use of low-power signals, they do not use much energy for performing operations. Interference with other wireless devices does not happen, making way for clear communication.

Chris is the writer of this article, you can visit us for more information on how to connect bluetooth devices and bluetooth mouse.

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Bluetooth Technology

Bluetooth Basics – Bluetooth Technology Tutorial

Bluetooth Basics – Bluetooth Technology Tutorial

Bluetooth Basics

Bluetooth technology is nothing new, but in many respects it still seems to be more of a buzz word rather than a well understood, commonly accepted technology. You see advertisements for Bluetooth enabled cell phones, PDAs, and laptops, and a search of the Geeks.com website shows all sorts of different devices taking advantage of this wireless standard. But, what is it?

History

Before getting into the technology, the word Bluetooth is intriguing all on its own, and deserves a look. The term is far less high tech than you might imagine, and finds its roots in European history. The King of Denmark from 940 to 981 was renowned for his ability to help people communicate, his name (in English)… Harald Bluetooth. Perhaps a bit obscure, but the reference is appropriate for a wireless communications standard.

Another item worth investigating is the Bluetooth logo. Based on characters from the runic alphabet (used in ancient Denmark), it was chosen as it appears to be the combination of the English letter B and an asterisk.

Capabilities

The FAQ on the Bluetooth.org (https://www.bluetooth.org/) website offers a basic definition: “Bluetooth wireless technology is a worldwide specification for a small-form factor, low-cost radio solution that provides links between mobile computers, mobile phones, other portable handheld devices, and connectivity to the Internet.”

Just like 802.11 b/g wireless networking systems and many cordless telephones, Bluetooth devices operate on 2.4 GHz radio signals. That band seems to be getting a bit crowded, and interference between devices may be difficult to avoid. Telephones are now being offered on the 5.8 GHz band to help remedy this, and Bluetooth has taken its own steps to reduce interference and improve transmission quality. Version 1.1 of the Bluetooth standard greatly reduces interference issues, but requires completely different hardware from the original 1.0C standard, thus eliminating any chance of backwards compatibility.

The typical specifications of Bluetooth indicate a maximum transfer rate of 723 kbps and a range of 20-100 meters (65 to 328 feet – depending on the class of the device). This speed is a fraction of that offered by 802.11 b or g wireless standards, so it is obvious that Bluetooth doesn’t pose a threat to replace your wireless network. Although it is very similar to 802.11 in many ways, Bluetooth was never intended to be a networking standard, but does have many practical applications.

Practical Applications

There are a variety of products that take advantage of Bluetooth’s capabilities, from laptops and PDAs, to headphones and input devices, and even wireless printer adapters.

Many Laptops include an onboard Bluetooth adaptor to allow the system to connect to any Bluetooth device right out of the box. For laptop or desktop systems that do not have an adaptor built in, there are many USB Bluetooth adaptors available.

Bluetooth enabled PDAs allow for convenient wireless synchronization and data transfer.

Headphones can take advantage of Bluetooth for two purposes… audio playback and mobile phone communications. Using something a mobile headset with a Bluetooth enabled mobile phone allows anyone to go hands free, as well as wire free.

Logitech, and other manufacturers, also produce input devices that eliminate wires thanks to Bluetooth. You can add a Bluetooth mouse to your system, or both a mouse and keyboard. One advantage that Bluetooth wireless keyboard/mouse combinations have over the standard RF wireless keyboard/mouse combinations is range. Where most standard RF keyboard/mouse combinations have a range up to 6 feet; a Bluetooth keyboard/mouse combination will usually have a range of up to 30 feet.

Bluetooth printer adaptors make sharing a printer extremely convenient by eliminating the need for any wires or special configurations on a typical network. Printing to any compatible HP printer from a PC, PDA or mobile phone can now be done easily from anywhere in the office.

Final Words

At this point the popularity of Bluetooth might not be as large as some proponents would have hoped, but many devices are available for those interested. The cost and competition from other standards have hindered the widespread acceptance, but Bluetooth does offer a viable solution to many devices that might not have wireless connectivity without it.

Computer Geeks tech tips and computer advice

Bluetooth Basics – Bluetooth Technology Tutorial

Bluetooth Technology

bluetooth

Tech Review – Bluetooth

I wanted to take some time and write a little post on Bluetooth. This is really just a basic discussion of what it is and what it does, not a really involved, detailed, explanation of the technology and the science behind it. The web is filled with that kind of info. I’ll try to post some links to other info sites sometime soon.

Bluetooth has been around for longer than people think. It was first developed in the mid 90’s as a device wireless standard. Essentially, it is a standardized way for different personal devices to talk to each other. It allows Phones, PDAs, Computers, Headsets, Printers, and more to all talk the same language over the same designated radio frequency. It has gone through a few different versions, the latest being version 2.1 + EDR.

However, just because they communicate using the same protocol, doesn’t mean that each device will support the other device. Each device is programmed to use different features of the Bluetooths standard. For example, a phone can support a Bluetooths Headset for phone calls, but may not support printing to a Bluetooth printer. Just because a device has Bluetooth capability, it’s up to the manufacturer of that device to decide what features are going to be enabled, and how those features work.

Here’s an example… My phone is a BlackBerry Pearl by RIM. It has Bluetooth capability for headset use. I can pair any Bluetooth headset to my phone. When paired, I can place and receive calls using the headset. However, I cannot listen to music stored on my phone through a paired headset. The reason is that the manufacturer (RIM in this case) did not program that capability into my phone. A different phone (Cingular 3125 for example..my old phone) would allow music to be played through the Bluetooth headset. It’s a function of the programming of the phone…not the headset.

So, just because your phone has Bluetooth capabilities, does not mean that it will automatically work with all other Bluetooth devices. They need to be programmed to use the same features of Bluetooth.

To try to make it easier to determine if different devices will work together, Bluetooth SIG (special Interest Group…the group that develops and promotes the Bluetooth standard) has developed some icons for manufacturers to use on packaging. These Icons are supposed to tell you what Bluetooth features the device uses and that should help you determine if your devices will work well together. The icons are listed here. Though I haven’t seen too many uses of the icons on packaging yet.

In the example of my phone, my phone has “Headset” capability, but not “Music” capability. Therefore, my phone would work well with a Bluetooths headset (such as the “Mini”, or “Micro”), but I would not be able to listen to music stored on my phone using a Stereo Bluetooths Headset (such as the “Stereo” unit). In my case, the main purpose of the Blackberry Pearl is messaging, not music, so I am OK with not listening to music in stereo on my phone. But other phones are marketed as “music” focused phones, and would be smart to offer stereo Bluetooths capability.

Not only do you need to determine what capabilities your device has…but the way your device USES the Bluetooth capability as well. For example, when I use a Bluetooth headset with my Blackberry Pearl phone, I can press the Multi-Function button (aka the talk button) on the headset and the phone will automatically go to Voice Dial mode. The phone will ask me who I want to call and will place that call. This is because RIM programmed the Pearl to do that when the Mulit-Function button is pressed on a linked (paired) Bluetooth Headset.

Now, if the same headset is paired to an iPhone and the MFB is pressed, nothing happens. Apple did not program the iPhone to use voice dialing with a Bluetooth Headset. The headset will work fine, but to place a call, you need to use the phone touch-pad to dial. To answer a call, you can just press the MFB.

These functions are all determined by the programmers and engineers who design and build the individual phones. Just because a device is Bluetooth compatible, doesn’t tell you HOW that device uses the Bluetooth function.

The Bluetooth Experience Icons help (though not commonly used yet) but even those don’t tell you HOW the device uses the technology, only that it does.

Hopefully this doesn’t put you off towards Bluetooth totally, because it really is great technology. It is very handy to use a wireless headset to talk on the phone. And in many areas, handheld use of cellphones is illegal.

So how do you know what will work with your phone? The instructions or manufacturers websites should be able to tell you if your phone is Bluetooth capable or not. And it should tell you what features it supports. But they may not tell you how convenient their programming and use of the technoligy is.

One suggestion I have (and use) is to start small. If you are thinking of buying Bluetooth headset for your phone, see if you can try it in the store. I haven’t seen that offered anyplace in our area, but if you can find a salesman or store that will let you try before you buy, take advantage.

Another option is to try with a lower cost headset first. There are a wide range of headsets and other Bluetooth devices out there. Some are very low cost and low quality, and some are very expensive. There are many factors involved in the pricing of these units…enough that I will save it for another post sometime. But there are some good quality units available at a very fair price. These tend to be lesser known brands, but since Bluetooth is based on a standard protocol, using standard chipsets, you won’t see a huge difference in performance.

As I said, this is a very basic overview of what Bluetooth really is. I could get into hours and hours of great tech detail on this, but I’m trying to keep it simple and understandable.

Jeremy Shepard is the owner of Wicked Good Tech [http://www.wickedgoodtech.com], an online resource and store for many modern and tech gagets. Wicked Good Tech offers several models of Bluetooth Headsets, Car Kits, Digital Photo Frames, Rechargable Candelas, and more.

Wicked Good Tech [http://www.wickedgoodtech.com] also hosts a blog at Wicked Good Blog [http://blog.wickedgoodtech.com]. Here we post reviews and articles relating to our products.

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Bluetooth Headsets

Buying a Bluetooth Headsets – A Guide

As you can see from the large range of Bluetooth headsets that are available on the market, it can be difficult to decide which one to buy. This short guide is intended to help you through this decision process so that you get the headset that is best for you.

A Bluetooth headset is an important item which has many benefits. Used when driving a car it makes using your phone legal; used in the street it does not reveal your phone which can make you a target; it places a distance between your phone and your head so eliminating the health concerns of mobile phone usage; and it can make a fashion statement.

The early Bluetooth headsets looked very geeky and strange. Nowadays thankfully they are much more discreet and fashionable; some are even attractive. Their performance has also improved considerably as has their battery life. The earlier versions used the Bluetooth 1.2 protocol which had significant limitations. The more modern ones use Bluetooth 2.0 and later which is much faster at making connections, provides much improved audio quality and provides extended battery life.

In this guide we will look at some of the important things to consider before making your purchase. These are headset design, comfort, battery life, audio quality, mono versus stereo, charging and usability.

Which Bluetooth Headset Design?

As has already been stated, modern Bluetooth headsets don’t have to look geeky and some are positively fashionable. Some are tiny so that they fit in the ear in such a manner that makes them almost invisible. Others have ear clips that provide a more secure mounting but make them more visible. Some come in a range of fashionable colours with exchangeable skins, some have the appearance of (and really are) high technology. Certainly you should choose a design that you would feel comfortable to wear and that will look good on you.

How Heavy?

Early Bluetooth headsets were relatively heavy and bulky compared to modern ones and often weighted over 22 grams which could become quite uncomfortable if worn for long periods. Nowadays it is possible to buy Bluetooth headsets which weigh only 8 to 10 grams. These are much easier to wear and you can easily forget you are wearing one. Much of the weight is due to the battery, but modern battery technology along with power saving designs has allowed much smaller an lighter batteries to be used.

What is the Battery Life?

As described in the previous paragraph, the batteries in modern Bluetooth headsets are much smaller that they were only a few years ago. Despite this, battery life has also been extended. This is due to a number of factors: modern headsets are much cleverer at conserving energy when in the ‘sniff’ or standby mode; new Bluetooth protocols are much more efficient than earlier ones; modern batteries do not suffer from hysteresis or memory which was caused earlier batteries to deteriorate quickly. A good Bluetooth headset can be expected to offer talk times of over eight hours and standby times of over 140 hours.

How good does it sound?

Modern Bluetooth headsets can offer excellent audio quality. Even the lower priced ones generally have some sort of noise cancellation system, and many of the admittedly somewhat expensive ones use state of the art noise cancellation technologies that are superb. Remember that you need also to consider how you sound to the people on the other end of your phone call, not just how they sound to you. Price is not always an indicator of quality in this respect, but it is a fact of life that those on the top end of the price scales tend to perform much better that those in the bargain basement.

What about Stereo Bluetooth Headsets?

Stereo Bluetooth Headsets make use of the A2DP Bluetooth profile for streaming stereo sound from a mobile phone, MP3 player, computer or other A2DP Bluetooth transmitter. When connected to a phone, calls are handled by the standard Bluetooth protocol, and when a call is received the stereo sound is paused while you take the call, then when you hang up it resumes automatically.

In terms of audio quality, this ranges from very good to excellent and can be as good as wired headphones. If you wish to stream stereo music from your phone you should ensure that is has the A2DP Bluetooth profile; a number of phones do not have this.

What are the battery charging options?

There are generally a number of ways to recharge your Bluetooth headset. They can be charged using a mains adapter, they can be charged from your computer or laptop by using a USB cable, or they can be charged from the lower (lighter) socket in your car. Power chargers are becoming more standardised and often the same one will charge your phone and headset.

How many phones can I connect to?

Many modern Bluetooth headsets have Multipoint connectivity. This means that they can be paired to more than one phone at the same time. The headset responds to which ever phone receives a call first. This can be particularly useful if you carry a number of phones, for instance a personal one and a work related one. If this is important to you then you should ensure that your headset is Multipoint.

Do I need Voice Dialling?

Many Bluetooth headsets offer a voice dialling facility. This offers considerably convenience and safety when driving. After previously setting up your phone with sound tags, you simply press a button on the headset to activate voice dialling, say the name of the person you wish to call, and the phone will dial the appropriate number.

What is the purpose of Call Alert?

Some Bluetooth headsets offer call alert. This is particularly useful if you are not wearing your headset and you are carrying it in your pocket. You might well miss a call if your phone is in silent mode or it is in a bag or a case, but when a call is received your headset will vibrate to alert you that a call has been received. Then, by pressing a button on the headset you can take the call.

Will the Bluetooth Headset be compatible with my phone?

Whilst in the early days of Bluetooth headsets it is true that there were many compatibility issues with different manufacturers’ headsets and different manufacturers’ phones. Some simply would not work together or only some features could be used and not others.

Nowadays with the new Bluetooth protocols these compatibility issues have been resolved and every modern headset will work with every suitably Bluetooth equipped mobile phone.

How far away can I be from my phone?

Bluetooth is a radio technology that has different protocols and different classes. Class 1 Bluetooth headsets have a range of 100 meters and class 2 Bluetooth Headsets have a range of 10 meters. The longer ranged Class 1 headsets are useful for receiving music streamed from a Class 1 Bluetooth source such as a Class 1 Bluetooth dongle equipped with EDR, but this does not mean that you can be 100 meters away from your phone.

The reason for this is that your phone will have only Bluetooth Class 2 which will limit the range to 10 meters, so you can be a maximum of 10 meters from your phone.

Final Words

Closing the right Bluetooth headset for you is an important decision and you will need to balance the design style, comfort, sound quality and other features with price. The old adage that you get what you pay for is very applicable to Bluetooth headsets and prices range from quite inexpensive, just a few pounds or dollars to, quite expensive, possibly a hundred pounds or so.

We hope that this guide will help you make your decision. A Bluetooth headset is certainly an excellent investment that can considerably benefit both your health and your safety.

Gary Shorthouse is a freelance technical writer with a keen interest in modern technology and science. For more information on the latest innovations in Bluetooth and other Wireless Technologies and Devices he recommends that you visit his website UKBluetooth at http://www.ukbluetooth.co.uk.

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History of Bluetooth

Bluetooth is a wireless technology standard for exchanging data over short distances (using short-wavelength UHF radio waves in the ISM band from 2.4 to 2.485 GHz) from fixed and mobile devices, and building personal area networks (PANs).

Source: Wikipedia

Interesting story

Bluetooth was developed by Ericcson which is a Danish company. They named it after a Danish king, whose nickname was Bluetooth because he brought the Danish tribes together.

That’s sort of misleading, because it’s not entirely truthful. Bluetooth was developed by Ericsson (pre-Sony Ericsson) which is a major Swedish telecommunication company. They named if after the Danish Viking king, Harald Blåtand. Harald Blåtand was the king who converted from the belief in the Ancient Norse Gods and Goddesses to the single God of Christianity. Blåtand translated to English, literally means Bluetooth, so that’s how they came up with the name.

If you look at the Bluetooth symbol, there’s a Runic inscription in it. The two lines sticking out of the back of the B actually represent a Runic H. The B is, obviously, a Runic B. Harald Blåtand’s initials form the symbol of today’s world’s Bluetooth!

Bluetooth is supervised by the Bluetooth Special Interest Group (SIG), which includes more than 25,000 member companies in the regions of telecommunication, computing, network, and gadgets.The IEEE standardized Bluetooth as IEEE 802.15.1, but no sustains the typical a bit longer. The Bluetooth SIG oversees development of the specification, manages the qualification program, and protects the trademarks. A company must meet Bluetooth SIG benchmarks to advertise it as a Bluetooth device. A network of patents connect with the technology, that are certified to specific qualifying devices.

The Bluetooth Core Specification Working Group (CSWG) produces mainly Four kinds of specifications:
The Bluetooth Core Specification, release cycle is typically a few years in between
Core Specification Addendum (CSA), release cycle can be as tight as a few times per year
Core Specification Supplements (CSS), can be released very quickly
Errata

Bluetooth and WiFi

Bluetooth and Wi-Fi (the brand for products using IEEE 802.11 benchmarks) involve some similar applications: establishing systems, printing, or moving files. Wi-Fi is supposed as an alternative for broadband cabling for standard geographic area network gain access to in work areas or home. This group of applications may also be called wireless geographic area sites (WLAN). Bluetooth was designed for lightweight equipment and its own applications. The group of applications is specified as the cellular personal area network (WPAN). Bluetooth is an upgraded for cabling in a number of transported applications in virtually any setting up in person, and also works for set location applications such as smart energy features in the house (thermostats, etc.).

Wi-Fi and Bluetooth are somewhat complementary in their applications and use. Wi-Fi is access point-centered usually, with an asymmetrical client-server reference to all traffic routed through the access point, while Bluetooth is symmetrical usually, between two Bluetooth devices. Bluetooth acts well in simple applications where two devices need to hook up with minimal construction just like a button press, as with headsets and remote control controls, while Wi-Fi suits better in applications where some extent of customer construction is high and possible rates of speed will be required, specifically for network gain access to via and gain access to node. However, Bluetooth access points do exist and ad-hoc connections are possible with Wi-Fi though much less simply much like Bluetooth. Wi-Fi Direct was just lately developed to include a far more Bluetooth-like ad-hoc features to Wi-Fi.

Bluetooth Versions:
Bluetooth v1.0 and v1.0B
Bluetooth v2.1 + EDR
Bluetooth v3.0 + HS
Bluetooth v4.0
Bluetooth v4.1
Bluetooth v4.2
Bluetooth v5

More: http://www.crazysubh.blogspot.in

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Wireless Without the Wires: Bluetooth Cellular Phone

They may call it a wireless phone, but standard cellular phones still require wires at some point. Besides the clunky charger, you also have to fumble with cords to use a headset and to transfer data between your phone and other gadgets. But there is an answer for anyone looking to cut the cord almost completely. With a Bluetooth cellular phone, you can chat on a wireless headset, transfer data magically through the air to a handheld, or connect with a Bluetooth-enabled car. But take care, as each Bluetooth cellular phone is not created in the same manner. While some carriers let you use a Bluetooth cellular phone for almost any means, others restrict it to a headset only.

Bluetooth is a standard developed by a group of electronics manufacturers that allows any sort of electronic equipment — from computers and Bluetooth cellular phones to keyboards and headphones — to make its own connections, without wires, cables or any direct action from a user. A Bluetooth cellular phone works at two levels:
It provides agreement at the physical level — Bluetooth is a radio-frequency standard.
It also provides agreement at the next level up, where Bluetooth cellular phones have to agree on when bits are sent, how many will be sent at a time and how the parties in a conversation can be sure that the message received is the same as the message sent.

While it may sound complicated, a Bluetooth cellular phone works in a simple manner. A Bluetooth cellular phone communicates with different devices by sending data via a secure, low-cost short-range radio frequency. Using the technology, a Bluetooth cellular phone can connect to headsets, PCs can connect to printers or keyboards, and handhelds can connect to each other without any wires. Up to seven connections can be made at one time, at a speed of 1Mbps. All that’s needed for any Bluetooth cellular phone to connect to another Bluetooth-enabled device is for them to be paired–normally, a hassle-free “handshaking” process for establishing a connection that takes seconds and can be found in most wireless connectivity menus.

What’s in a Name?

In case you were wondering, what’s “Bluetooth” in the term “Bluetooth cellular phone”, Bluetooth gets its name from a 10th-century Danish king, Harald Blatand (or Bluetooth) who unified Denmark, Norway, and Sweden. According to legend, he had an affinity for teeth-staining blueberries.

Bluetooth Frequency

A Bluetooth cellular phone communicates on a frequency of 2.45 gigahertz, which has been set aside by international agreement for the use of industrial, scientific and medical devices (ISM).

A number of devices that you may already use take advantage of this same radio-frequency band. Baby monitors, garage-door openers and the newest generation of cordless phones all make use of frequencies in the ISM band. Making sure that a Bluetooth cellular phone and these other devices don’t interfere with one another has been a crucial part of the design process.

Pairing up

Before you start talking on a Bluetooth cellular phone, you do need to know a few facts. A Bluetooth cellular phone has a range of 30 feet (10 meters), and the devices in question must use compatible versions of Bluetooth. The majority of Bluetooth cellular phones currently in the marketplace works on Bluetooth 1.1. (Two previous versions, 1.0 and 1.0B, were plagued with compatibility issues and have since been discontinued.) The Bluetooth Special Interest Group (SIG), a trade association and development group, is releasing newer versions that promise several upgrades and backward compatibility. Bluetooth 1.2, includes the addition of an anonymity mode, which masks the hardware address of the device to protect from identity snooping and tracking, and adaptive frequency hopping, which cuts interference by avoiding crowded frequencies. Bluetooth 2.0 has some enhancements; among them are narrowband channels, which will enable messages to be broadcast to a high number of devices without the pairing process, andhigher connection speeds of up to 12Mbps.

When no other means of connecting to the Internet is available, mobile workers can use their Blue tooth cellular phone as a modem. An advantage of using a Bluetooth cellular phone is that it can remain in your laptop carrying case or pocket, and a Bluetooth cellular phone does not require a direct line of sight connection. If your laptop is not already Bluetooth enabled, you can purchase a USB Bluetooth adapter.
A Bluetooth cellular phone makes it easy to transfer or receive information from other Bluetooth-enabled devices, eliminating the need for extra cables. A Bluetooth cellular phone can be used with a Bluetooth-enabled headset allowing for handsfree operation. You can put the Bluetooth cellular phone in your pocket or carrying case and still take calls. This is especially useful if you need to use your Bluetooth cellular phone while driving.

Be secure

As with any wireless device, a Bluetooth cellular phone has some minor security concerns. The SIG has admitted that bluebugging, where a hacker secretly accesses a phone’s commands (such as eavesdropping on conversations), and bluesnarfing, where a hacker can access a phone’s data–such as the contacts–are possible, yet the group downplays both actions. While they work through Bluetooth, they also require the hacker to use a PC and to be within range of the victim’s Bluetooth cellular phone (10 meters). Still, Nokia and Sony have said these issues affect only older handsets that are available mainly outside of the United States, and Nokia is promising a software upgrade. To help combat both, a Bluetooth cellular phone can be locked with a code or simply turned off or put in hidden mode when not in use. Another concern, depending on how you look at it, is bluejacking. This often involves creating a flirtatious introductory message, then sending it to another Bluetooth cellular phone (that is discoverable) narby as a text message.

Saurya Ghosal for [http://www.discount-cellular-phone.com]. Read more about Cellular Phones [http://www.discount-cellular-phone.com/wireless-cellular-phone.html] Copyright 2005 [http://www.discount-cellular-phone.com]

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Bluetooth Headsets for Cell Phones

There are several ways that electronic devices may be connected to each other –

o Component cables

o Electrical wires

o Ethernet cables

o WiFi

o Infrared signals

The community of electronic devices that you have is made up of your computers, entertainment systems, telephones, and the various pieces and parts of the systems. Communication can be established between these devices using variety of wires, cables, radio signals and infrared light beams, including a wide range of connectors, plugs and protocols. Bluetooth is another art of establishing connectivity between these devices.

You need a Bluetooth enabled cell phone to have a wireless connection between your cell phone and your head set. For a better understanding of the advancement of technology, Bluetooth is an in-expensive way for different devices to communicate with each other, with the help of a secure, short range radio frequency. With this technology you can achieve up-to seven established connectivity at any one time, including cell phones, headsets, cameras, Global Positioning System (GPS) devices, printers, keyboards, handheld computers, and even Bluetooth-capable cars.

While using your mobile in your car, you would ideally have the Bluetooth connecting your headset with your phone, patched through your car’s audio system and your onboard navigation screen. Bluetooth establishes a connection between the devices. It has a range of 30 feet and uses the same frequency as wireless fidelity, or Wi-Fi, but does not reach near the distances. Wi-Fi also requires costlier hardware.

A Bluetooth headset is small and lightweight wireless device, with some models weighing less than 28gms. You can have 5 hours of talk time with this device and as much as 100 hours of stand-by time. The Bluetooth headset allows you to communicate through your cell phone in wireless mode, even if your phone is in a bag, your pocket, in a piece of luggage, or nearby in the room.

With the release of the newer versions of Bluetooth, it is important that you need to check that your Bluetooth headset and other devices are compatible. The previous version had problems like identity snooping and tracking, which has been resolved in the new version. It provides adaptive frequency hopping feature when it comes to crowded frequencies.

In choosing a Bluetooth headset, you should first check if the device is easy to put on and remove, and the comfort in wearing the device. The volume and other controls should be easy to use. It is also important to find out if the battery is replaceable and the number of devices that it can be connected with. You need to ask for the range of model available and look at the specifications. You should also want a clear, well-written, helpful manual for your Bluetooth headset. Bluetooth got its name from a 10th century Danish king who unified Denmark, Norway, and Sweden, and it has also some other catchy buzzwords. Bluetooth devices can be secured from eavesdropping and blue-snarfing from hackers, by a code, or placing it in the hidden mode when not in use.

Bluetooth has been designed to work in noisy environment. Here we are talking about electrical interferences which are also known as noises. These noises disrupt communication which you have often come across while having a conversation on your mobile phone. To eliminate such noises, Bluetooth uses frequency hopping technique. When a noise occurs in the frequency that it is operating in, Bluetooth typically hops into another frequency after transmit/receive of the current packet. This is to avoid interference from other signals. A microwave oven, for example, may be a source of interference and in such cases Bluetooth hops faster and uses shorter packets for transmit and receive, limiting the impact of the interference from other devices or electrical appliances.

The advantage of a Bluetooth is that it is a wireless device, which is inexpensive and automatic. There are other methods in establishing the same purpose as a Bluetooth, through wires, infrared communication, etc. Infrared (IR) is a very low frequency device, much lower than what human eye can see and a good example is its use in television remote control. Infrared (IR) has its advantage in having the feature that it needs to be lined up with the receiver in order to communicate, as you find in a television remote control. Even with a room full of IR devices, the one to one transmit and receive work without having any interference problems from any other devices.

Bluetooth uses multi-layer of data encryption and is extremely secure. With its user authentication measures, it is one of the secured communication links. The use of a Personal Identification Number (PIN) and a unique Bluetooth address, one Bluetooth identifies other Bluetooth devices. To further enhance Bluetooth security, data encryption technique could be used. By using frequency hopping, Bluetooth maintains the security aspect by not transmitting in one frequency within the 2.4 GHz band.

Bluetooth uses very low power, which saves the battery and takes small-area networking to the next level by removing the need for user intervention. Your cell phone connected to Bluetooth can receive the map from your GPS device in your car. This is automatically sent to your computer as your Bluetooth picks up a signal from your PC and automatically sends the designated data you requested for. Minutes later, your Bluetooth enabled landline starts to ring instead of your mobile phone. This call to your mobile phone got automatically routed to your landline because the Bluetooth found that you are home. It uses minimal power for each transmission to and from your mobile phone, and your phone battery charge remains virtually unaffected by this activity.

Bluetooth headsets. In 99% of the world the local cellular service standard is called GSM. We use this in the states as well. When combined with a SIM CARD (which usually goes under the battery of the phone) the phone is able to communicate and the SIM CARD also holds the telephone number and memory for pre-paid credit. Rates can be extremely low using this system. For example in 99% of all SIM CARDS incoming calls are free and calls to the states can cost a trifle. Such as, from the UK to the USA 7 cents/minute, from Israel 22 cents, from Australia 27 cents. Yes, USA Dollar cents! There are today even prepaid service providers in the USA offering rates of 10 cents per minute to call anywhere in the US to any type of phone. No contracts, no credit card checks, no bills. Pre-paid means no minimums no contracts, no obligations. You’ll need an unlocked GSM tri-band or quadband UNLOCKED phone. Bluetooth products, bluetooth accessories, bluetooth headsets, bluetooth cell phones and headsets, motorola bluetooth, and bluetooth cell phones at http://www.planetomni.com Tel. 925-686-9945

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Bluetooth – Much More Than Hands-Free Calling

Many people think of a Bluetooth device as nothing more than a hands-free headset for your cell phone. Bluetooth is a general-purpose technology that allows all sorts of devices to communicate wirelessly with each other.

What is Bluetooth?

Bluetooth is a short-range wireless communications technology used to connect computers, mobile phones, keyboards, stereos, and other electronic equipment. When two Bluetooth enabled devices connect to each other, it is called pairing. For security reasons, you are usually required to enter or verify an access code during the pairing process. The devices can typically be connected in a range up to about 32 feet (10 meters).

Typical Bluetooth Devices

If you have an iPhone or iPad, there are some general types of Bluetooth devices that work with your hardware.

Many types of audio and visual equipment such as dock stations, stereos, and some TVs
Keyboards
Phone headsets/ear pieces
Car kits that can provide both hands-free calling and transmit music to car stereos
Setting up a Bluetooth connection on the iPhone or iPad

Regardless of what type of accessory you want to pair to the iPhone, the basic process is described below. These instructions also apply to the iPad and assume you are using iOS 6.

Turn on your Bluetooth accessory and put it into discovery mode. This allows the iPhone to see the device and connect to it. Making a device discoverable requires different steps on different devices. For some items, you just need to turn them on, while other accessories may require manually engaging the discovery mode. Check the device manual for pairing instructions.
Open the Settings app on your iPhone and select Bluetooth.
Tap the Bluetooth slider to “ON”. A list of available devices will then appear.
Select the device to connect. Depending on the accessory, a screen may appear asking for an access code. Enter the access code listed in the device’s manual. After entering the access code, select Pair and the device will be paired to your iPhone and ready for use.
If you ever decide to unpair the device, simply select the accessory from the list and tap “Forget This Device”.
Since Bluetooth is a short-range network, the connection will be lost if you move the iPhone too far from the device, which for most accessories is about 32 feet (10 meters). Once the connection is lost, most devices will automatically reconnect when they are in range of the iPhone. If you unpair the device, it must be paired again before it will connect to your iPhone.

Bluetooth Device Compatibility

There are a wide range of Bluetooth devices on the market. Not all devices are designed to connect to each other. For example, there is no reason to connect a wireless keyboard to wireless headphones. Both are Bluetooth items, but they serve different functions and will not connect to each other. If this sounds a little confusing, just remember, devices are designed for use with other items that complement their functionality.

Bluetooth defines functionality in general groups called profiles. The compatibility of Bluetooth equipment with iOS devices relies on which profiles are supported. For two devices to communicate, they must both support the same profile.

When choosing a Bluetooth accessory, make certain the profiles supported by the accessory match that of your iOS device. If the accessory supports a profile not available on an iOS device, the functions associated with that profile will not work with the iOS device. Apple devices with iOS 6 support the profiles described below. Not all profiles are supported by all iOS devices. The exceptions are annotated for each profile.

Hands-Free Profile (HFP 1.6) – Enables iOS devices to work with hands-free car kits and headsets. This profile is not supported by the first generation iPad.
Phone Book Access Profile (PBAP) – Allows the exchange of information between the iPhone address book and the Bluetooth accessory. This is mainly used for car kits to display the name of the incoming caller and to sync the address book to the car. The PBAP profile is only available with the iPhone.
Advanced Audio Distribution Profile (A2DP) – Used by iOS devices to stream high quality audio to compatible headphones or stereos. Supported by all iOS devices except the original iPhone.
Audio/Video Remote Control Profile (AVRC 1.4) – Provides the iOS device with remote control of playback functions on compatible A/V equipment. Supported by all iOS devices except the original iPhone.
Personal Area Network (PAN) – Provides wireless network connectivity between multiple devices. Supported by all iOS devices except the original iPhone.
Human Interface Device Profile (HID) – Supports iOS communication with wireless keyboards. Neither the original iPhone nor the iPhone 3G support this profile.
Message Access Profile (MAP) – Allows the exchange of messages between devices. Typically used by car kits. This profile is only supported by the iPhone 4 and later models.
Bluetooth Smart and Bluetooth Smart Ready

With all this potential confusion about compatibility, the Bluetooth Special Interest Group ( http://www.bluetooth.com ) is trying to make things a little easier for the consumer. With the advent of the latest Bluetooth v4.0 technology, the Bluetooth Smart and Bluetooth Smart Ready logos were introduced. These logos help consumers ensure compatibility between Bluetooth equipment.

The Bluetooth Smart and Bluetooth Smart Ready devices incorporate new low power technology, which will allow manufacturers to expand the capabilities of wireless devices. A Bluetooth Smart Ready device is basically an iPhone, iPad, or computer that runs apps. It acts as a central hub for collecting information sent from Bluetooth Smart devices. Bluetooth Smart devices are basically low power sensors capable of collecting some specific information and sending it to the Bluetooth Smart Ready device. Simply stated, Bluetooth Smart Ready equipment receives information from Bluetooth Smart equipment. As an example, a Bluetooth Smart device could record your heart rate information while you exercise and send it to your iPhone for monitoring.

A Bluetooth Smart Ready device has a dual mode wireless radio that supports both the classic Bluetooth wireless as well as the new low power Bluetooth Smart devices. A Bluetooth Smart device has a single mode radio that supports only the new low energy devices. Existing Bluetooth accessories are compatible with Bluetooth Smart Ready devices, but may not be compatible with Bluetooth Smart devices. You will need to check the manufacturer recommendations for compatibility.

With the advancements in Bluetooth technology, new types of devices are coming to market. But don’t worry; your trusty hands-free adapter should still be available for years to come.

T Mitch has been a technical consultant for over 15 years. He provides helpful iPhone and iPad tips, tutorials, and other information at http://www.iAnswerGuy.com. His website enables people to get the most from their Apple device.

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Development of the Sony PS3’s Media Drive – Control and Connectivity Systems For Use in the PS4

The Sony PlayStation 3 battles it out with rivals the Microsoft Xbox 360 and the Nintendo Wii for games console supremacy. The PS3 boasts the most impressive specification of all three units and includes an IBM developed Cell Processor, an advanced form of XDR main memory and an NVIDIA PC-based graphics processor. The consoles replacement is expected to be released to the general public around 2011, so when it arrives what can we expect the PlayStation 4’s specification to look like in comparison with the current PS3? In two of my earlier articles I looked at the PS4’s likely main processor, memory, graphics processor and hard drive specifications. In this, the final article in the series, we’ll be taking a look at the optical media drive, control system and connectivity features.

First we consider the consoles optical drive. Expect the current generations integrated Blu-ray optical drive to remain in place almost unchanged from the present specification. Just like the DVD format which proceeded it, once an optical system has been established there is little change required. As any replacement for Blu-ray is a long way in the future, and would probably not be disk-based anyway, I don’t see any reasons for this element of the console to change. In my opinion Sony will simply use the fact that Blu-ray is an established technology as a cost advantage. The high development costs and the corporations insistence that it be included in the current console from launch is a large factor in the high production costs and lack of profit associated with the PS3.

The remaining features of the PS3, notably the integrated USB 2 ports, Bluetooth wireless controllers, and built in wireless network adaptor I would expect to see carried over to its replacement unchanged unless there are any significant speed related upgrades to the technology. If this is the case then I would expect an upgrade to reflect this. One area of new development I think we might see is the implementation of a new controller design. The current controller gets its fair share of criticism – the Xbox 360 controller is often viewed as far better unit to use, whilst the innovative Nintendo Wii controller has been responsible for that systems resounding sales success. In light of this a re-design of the control system is an almost certainty but with the Bluetooth connectivity maintained..

Sony has so far (as of March 2009) lost money on every PS3 sold despite the consoles relatively high price. This is mostly down to the advanced nature of its hardware, both in terms of development and production costs. I feel that a development of this existing technology is the only way to go to allow Sony to recoup some of the losses experienced in the PS3 program. This is all the more important in today’s fragile economic markets where record breaking sales figures can no longer be guaranteed.

This concludes our look at the PS4. I’d like to re-visit this article in a few years time to see how accurate my predictions have been.

We hope you’ve enjoyed this PlayStation related series of articles as much as we’ve enjoyed researching and writing them. Look out for more on the future of gaming consoles in the coming months and years. Would you like to get yourself a free PS3 console? It is much easier than you’d think. If you’re a gadget or technology fan and would like to get your hands on the latest games consoles then look no further. One look at the technology website gadgets-4-free.co.uk is all you need. They have the latest generation technology and as well as the fantastic Sony PS3 you could also get yourself a free MacBook, Microsoft Xbox 360 or even an iPod touch. It very easy to do and it is all explained on the site. We even provide you with up to date tech news with regular updates. So whether you’re a Microsoft, Sony or Nintendo man (or just a general tech fan) you’ll be well looked after!

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Which Console for You?

If you are in the market for a new video game console, then you may have felt intimidated by all the choices out there. Although a lot of console choices can make the initial decision a bit tougher, it’s actually a really good sign that the market is healthy and competitive. Let’s take a look at a few of the top consoles to see which one is right for you.

The first console you should consider is the Xbox 360. This is one of the most popular consoles. It’s not hard to understand why. The games have beautiful graphics, and the sheer selection of games is immense. If you like to get competitive with your video games, then you’ll be right at home with Xbox Live on the Xbox 360. This is an online gathering where video game players come together to test their skills. Another great feature of this console is that there is a wide variety of Xbox 360 accessories available.

The next console you should take a look at is the PlayStation 3. Sony has been in the video game business for quite some time, and this is their latest and best effort. This might be your top choice if you have previously played on other Sony systems, such as the original PlayStation or the PlayStation 2. The reason for this is that the controller is largely unchanged, so it shouldn’t take you too long to get right into the action. Another advantage you will experience if you purchase a PlayStation 3 is that their online service is free. This is in comparison to the Xbox Live service, which you must pay for.

If you don’t want to purchase a console dedicated solely to video games, then it is also possible to play on your computer. Desktop PCs are typically superior to laptops for playing video games, but in theory you can use a laptop if you get one with enough memory and processor speed. Although there are a few exceptions, most of the popular games that are available for the Xbox 360 and PlayStation 3 are also available for Desktop PCs. If you want to play video games on your computer, then you need to make sure that it is well equipped. You will need a good video graphics card, a lot of RAM, and a zippy processor speed. If you try to play video games on your computer without adequate specs, then the process will be more frustrating than it will be fun.

No matter which system you ultimately choose, you are sure to have a great time. Any of these options will set you back several hundred dollars, but you can offset this cost by looking for a TV sale.

Peter can help you with your computing needs. Whether you want a Playstation 3 or xbox 360 accessories or you’re looking for Desktop PCs or want to check out the latest tv sale. Let Peter be your guide to all PC!

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