Key Learning Points Of Bluetooth

Bluetooth is easily the best in wireless handheld
technology. When it comes to learning, Bluetooth
can get quite complicated. To help you, you’ll find
the key learning points of Bluetooth below:

1. Bluetooth is an energy efficient, low
overhead communication protocol that’s ideal for
interdevice communications.

2. Unlike infrared, Bluetooth doesn’t require
a line of sight.

3. Depending on the implementation, Bluetooth
can have a range of up to 100 meters.

4. The specification of Bluetooth consists of
a Foundation Profile Document and a Foundation Core
Document.

5. The protocol stack for Bluetooth consists
of core protocols, cable protocols, and even adapted
protocols.

6. The transmitter operates around the 2.4
GHz frequency band.

7. The data channel will change frequency, or
hops, 1,600 times in a second, between the 79 allocated
channels in the ISM band.

8. Bluetooth utilizes a spread spectrum
frequency hopping RF characteristic to ensure that
independant networking operates when the other
devices are in range.

9. A piconet is formed when one or more
devices open up a channel of communication.

10. A piconet can have a master and up to
seven slaves.

11. Communication of the interdevice is
based on the concepts of channels.

12. All Bluetooth devices are capable of
transmitting voice.

13. The channel has a total capacity of
1 MB per second.

14. There are two types of channels with
Bluetooth – SCO (Synchronous Connection Oriented) and
ACL (Asynchronous Connectionless).

15. The SCO channels are time oriented, and
are therefore primarily used for transferring time
critical data such as voice.

16. ACL channels are normally used for
communicating data.

17. Data contained in a packet can be up to
2,745 bits in length.

18. In a single piconet, there can be up
to three SCO links containing 64,000 bits a second
each.

19. To avoid collision and timing problems,
SCO links are reserved slots that are set up by
the master.

20. The masters can support up to three
SCO links with either one, two, or three slaves.

21. The slots that aren’t reserved for SCO
links can be used as ACL links.

22. The LMP (Link Management Protocol)
will handle link level security, error corrections,
and the establishment of communications links.

23. The LMP packets will have priority
over user packets that originate and form the
L2CAP layer.

24. The L2CAP layer will ensure an
acceptable quality of service.

25. No more than one ACL link can exist
at the L2CAP layer.

Debra Goh is an internet entrepreneur and a freelance writer. You can visit her at http://free–cell-phone.blogspot.com

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It is a fact that hands free technology for mobile phones have been around for quite a long time now. However, with all those dangling wires, you are never really free. It can be uncomfortable making and taking calls with all those wires dangling and snagging parts of your body and other objects. This is why Motorola offers a new kind of hands free technology called Bluetooth earpiece or Bluetooth headsets.

Thanks to Motorola’s new hands free headsets, you get to enjoy freedom from wires thanks to its use of Bluetooth technology. This technology has been used by cell phones, to allow for file transfers. Today, you’ll find Bluetooth in many other devices, allowing them to link together in a way never thought possible a few short years ago. This enables you to connect a Bluetooth enabled phone with a Bluetooth enabled printer, allowing you the ability to print images, or print out your phone book easily.

The Motorola Bluetooth earpiece is something every person on the move needs. Thanks to Motorola’s state of the art phone and Bluetooth technology, you have a marriage made in wireless heaven. Its the convenience as well as the quality that make this product stand out on its own. While many Motorola phones are Bluetooth enabled, both companies have taken this exciting new technology a step forward in providing users the accessory that puts hands free all together.

This is a convenient tool that you can use anywhere you go. If you are a person who is always on the go and prefers not to miss any calls or if you want additional convenience in mobile phone usage, you should consider getting one of the Motorola Bluetooth earpiece or headset.

The Motorola Bluetooth earpiece also offers the best quality audio. You will notice that the speech will not be garbled at all and even if you are in a noisy subway, or a busy freeway, you will be able to understand the person talking to you on your mobile phone. Also, the person on the other end will also be able to understand you clearly even if you talk to them in your normal speaking voice. This means that you don’t have to shout even if you are in a noisy place.

Not only that Motorola offers great quality to their products, such as their Bluetooth earpiece, but they also make it to be comfortable for you to wear all day long. With ergonomically designed earpieces, you can be sure that Motorola’s Bluetooth earpiece can perfectly fit your ears. Also, it is designed to be lightweight and has comfort features that naturally follow the contours of the area behind the ear. In fact, people said that after long periods of wearing the Bluetooth earpiece by Motorola, they didn’t even know that they were wearing one until someone calls them or when they want to call someone.

By offering a lot of talk time and standby time hours, you wont have to worry about recharging your batteries frequently. This is another added benefit of this product.

Looking for a true hands free solution? Look no further than a Motorola Bluetooth earpiece. For maximum audio quality, comfort, style and real wireless freedom, its everything you could ask for and more.

Bluetooth technology gives you the freedom from wires! Learn more about bluetooth technology, bluetooth car kit and bluetooth definition at DiscoverBluetooth.

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Initial first weekend sales estimates are approximated at 500,000 to 700,000 for the latest Apple product. The iPhone is soon to become just as popular as other products, such as the iPod or the Macintosh computer.

Blackfriars Marketing noted an average of two to three customers coming out of the Apple stores with iPhones on Friday night every single minute. With this fact, they considered that at peak time, sales for Apple could have reached 30,000 per hour. Between Apple and AT&T it is believed that they have sold 500,000 iPhones the opening weekend. Trip Chowdhry of Global Equities Research estimates that the number of iPhones sold that opening weekend would be a bit higher: 525,000.

The Wall Street Journal Online afternoon report stated that:

“Goldman Sachs pegged weekend sales at least 700,000 units — double its prediction of 350,000 — and raised its projection for iPhone sales to 5.3 million from four million. J.P. Morgan analysts were considerably less sanguine, saying Apple would recognize 312,000 unit sales for the just-ended quarter. “We believe initial demand may have been disappointing, but it’s still early,” they wrote.”

All this buying frenzy led to empty shelves at Apple Stores and AT&T outlets across the country. The iPhone can be ordered online from the Apple website, but there is a two to four week wait for delivery. Not surprisingly the iPhone is already available at online auction site eBay.com.

In fact an auction was just how the first iPhone itself was obtained. One person paid $100,000 to get the popular phone – and to support a good cause. As of this writing the lucky winner still remains anonymous. Proceeds for the charity auction benefited Keep A Child Alive, a charity that gives anti-retroviral treatment to children with AIDS in Africa.

Abigail Beal writes about issues of interest to community groups and non profit organizations. She is a frequent contributor to StepbyStepFundraising.com which provides information about fundraising options such as charity auctions.

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New Irma Bluetooth model is compatible with Nokia 9300 and Nokia 9500 Communicator Helsinki, Finland (PRWEB) February 26, 2005 — Flander Ltd, a Finland-based mobile technology company, today announced a new version of the Irma Bluetooth device that is directly compatible with Nokia 9300 and Nokia 9500 Communicator smart phones. Irma Bluetooth is an accessory that allows content from a mobile terminal to be presented on any data projector or display with a VGA input. The device allows, for example, PowerPoint® presentations or digital photos to be shown without a computer. The presentations are transmitted to Irma Bluetooth with the Presentation Editor application that is a standard feature in all Nokia 9300 and 9500 Communicator smart phones. “Irma Bluetooth further expands the possibilities of Nokia’s smart phones. With the device, owners of the new Nokia 9300 and 9500 Communicator phones will have less need to carry a laptop computer,” said Mr. Juha Junnonen, Senior Product Marketing Manager, Nokia. “By expanding the compatibility of Irma Bluetooth to Nokia’s new smart phones, we are bringing pocket-sized presentation technology to a wider user base. We believe that today’s mobile professionals appreciate compact, easy-to-use tools such as Irma Bluetooth,” said Mr. Riku Ryödi, Director, Software Solutions, Flander. The new Irma Bluetooth is directly compatible with Nokia 9300, Nokia 9500 Communicator, Nokia Series 60, Sony Ericsson P800 and Sony Ericsson P900 smart phones. Additionally, the device can be used with all Pocket PC and Palm devices that support the Bluetooth protocol. Irma Bluetooth is available through a number of well-equipped mobile telephone dealers in several countries. A list of distributors, supported handsets and further product information is available at http://support.flander.com/irma. About Flander Flander Ltd. is a mobile technology company specialized in software testing and application development with a focus on wireless solutions. Flander’s customers include top-tier wireless appliance and network developers and service providers. Flander’s quality system has been awarded the ISO 9000 certificate. Flander is a Symbian Platinum Partner and a member of the GSM Association. With offices in Finland and Sweden, the company employs 160 programmers and software testing professionals. Further information about Flander is available at www.flander.com.

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US firm Apple has confirmed its move into the telecoms industry, unveiling the long-awaited iPhone.

Users will be able to download music and videos with the phone, demonstrated by Apple boss Steve Jobs at the annual Macworld Expo in San Francisco.

Mr Jobs praised the phone’s design and told the audience the “magical device” would “revolutionise the industry”.

The phone, which will cost from $499 (£257) to $599, will be launched in the US in June and Europe later this year.

Apple is not yet saying how much the iPhone will cost in the UK, but using the comparison of a Mac mini computer the 4 gigabyte (GB) model would be about £335.

Also revealed at the Macworld Expo was Apple TV, a device to stream music and movies from a computer to the living room.

‘Super-smart’

The announcement ended months of speculation about the iPhone, which has no conventional buttons but instead uses a large touch-screen.

The firm has patented keyboard technology on the 11.6mm thick phone, calling it “multi-touch”.

It is essentially a computer with a blank screen that users configure so they can operate the monitor with their fingers.

But as the hype piled up Jobs told us we were witnessing history and he was going to reinvent the telephone – some doubts crept in.
Rory Cellan-Jones
BBC News’ Technology Correspondent

“We are all born with the ultimate pointing device – our fingers – and iPhone uses them to create the most revolutionary user interface since the mouse,” said Mr Jobs.

A full touch keyboard is available for text messaging and there is a built-in two megapixel camera.

Mr Jobs said the iPhone was a “revolutionary and magical product that is literally five years ahead of any other mobile phone”.

“It works like magic… It’s far more accurate than any touch display ever shipped. It ignores unintended touches. It’s super-smart.”

For more information about the iPhone visit iphone-3d.com

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