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Today's microsoft bluetooth Article
Bluetooth Technical Operations

Bluetooth is a high speed, low powered wireless link
technology that's designed to connect phones or other
portable equipment together with little to no work
required by the user. Unlike infrared, Bluetooth
doesn't require line of site positioning to work.

Current bluetooth phones prototype circuits are contained on a board
that is 0.9 cm square, with a much smaller circuit
board being developed.

When one Bluetooth device comes in contact with
another, they will automatically exchange addresses
and details of capability. Then, they can establish
a 1 MB link with security that they will use as
required. The protocols involved with handle both
data 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 bluetooth phones on the
2.45 GHz frequency band, and supports up to 721
KBps, along with three voice channels.

Each devices bluetooth offers a unique 48 bit address from
the bluetooth phones IEEE 802 standard, with the connections being
point to point or multipoint. The max range is
10 meters, although it can bluetooth headphones bluetooth headset be extended to 100
meters by increasing the power. The devices are
also protected from radio interference by changing
their frequencies, also known as frequency hopping.

What's important, is the fact that Bluetooth
devices won't drain battery life. The specification
targets power consumption of the device, limiting
the drain on the battery. The radio chip will
consume only 0.3mA in stand by mode, which is less
than 5% of the power that standard phones use.

Bluetooth will also guarantee security at the bit
level. The authentification is controlled by the
user via a 128 bit key. The radio signals can
be coded with anything up to 128 bit. With the
frequency hopping, Bluetooth is already very
hard to listen into.

The bluetooth phones baseband protocol is a combination of both
circuit and packet switches. Slots can be reserved
for synchronous packets as well. Each packet
will be transmitted in a different hop frequency.
Normally, a packet covers a single slot although
it can be extended to cover up to five slots.

Bluetooth can also support data channels of up to
three simultaneous voice channels. Therefore,
it's possible bluetooth phones bluetooth headset to transfer the data while you talk
at the same time. Each individual voice channel
will support 64 KB.

From a technical standpoint, Bluetooth is very
different indeed. It's the best wireless method
in the world, surpassing even infrared. For
communication on the go, Bluetooth is indeed
very hard to compete with.

A Short microsoft bluetooth Summary
Audiovox PM-8920 Rapid Car Charger Set of TWO


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Audiovox PM 8920 Accessory Pack with Pouch Case


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Recommended microsoft bluetooth Items
Original Jabra BT8040 Bluetooth Headset - White Box Pack

Original Jabra BT8040 Bluetooth Headset - White Box Pack
Features : Original Jabra BT8040 Universal Bluetooth Headset. Compatible with all bluetooth enabled cell phones, PDA and other devices. Bluetooth version 2.0 for enhanced data rate, faster pairing and connection. Fits either ear. Outstanding design with superb sound. DSP (Digital signal processing) technology. Active noise reduction. Intelligent volume equalisation. Multi-function button to controls various functions including answering and ending calls. Voice dialling (if supported by phone). Call reject (if supported by phone). Call mute. Last number redial (if supported by phone). Call waiting (if supported by phone). Specifications: Weight : 0.35 oz Dimensions : 1.54 " x .71 " x .47 inches. Bluetooth Class 2 wireless connection. Up to approximately 6 hours of talk time, or up to approximately 200 hours standby time. Offers a wireless connection up to 30 feet (10 m) from your compatible phone. Package Includes : Jabra BT8040 Universal Bluetooth Headset. AC Travel Charger. User manual.

D-Link DBT-120 Wireless Bluetooth 2.0 USB Adapter

D-Link DBT-120 Wireless Bluetooth 2.0 USB Adapter
D-Link DBT-120 PersonalAir Wireless USB Bluetooth Adapter - Finally, thanks to Bluetooth technology, we can kiss those annoying wires goodbye! Using this Bluetooth adapter on your PC or Macintosh computer, you can wirelessly access any Bluetooth-enabled device. Devices such as printers, cellular phones, PDAs, & more. This adapter supports up to 7 such Bluetooth devices and has a range of 33 feet. Extremely portable, this adapter can be taken with you anywhere. Use it on your notebook or desktop!

Customer Review: no help

it did not do what it was purchased to do

and help/support is not available



dont waste your money

Customer Review: Put this item on your "Do Not Buy" List

Yesterday I received my D-Link DBT-120 Bluetooth adapter and spent 2 hours trying to get it installed and talking to my Bluetooth Nokia cell phone. The CD installation disc did not work as I have Windows Vista. Next I downloaded new Windows Vista compatible software from Toshiba. After two attempts, it finally installed and it found my Nokia cell phone. But no matter what I did, it refused to connect my PC to my cell phone. Just a "connection failed" message and no further help. If you have Windows Vista, put this item on your "Do Not Buy" List. Oh yes, I contacted D-Link before purchasing it, and they said it is Windows Vista compatible.



I finally installed Nokia software and got the system to work. But for what one must go through to get Bluetooth to work, it's not worth the effort!



I strongly recommend that one should purchase a hardwire connector for use in connecting a PC to a cell phone.

BLUEANT (BANX3 GOLD ) Micro Gold Bluetooth Headset

BLUEANT (BANX3 GOLD ) Micro Gold Bluetooth Headset

Current microsoft bluetooth News
Microsoft unveils NavReady 2009 embedded OS (VNU Net via Yahoo! UK & Ireland News)

Tue, 17 Jun 2008 09:00:46 GMT
Microsoft has released a new version of Windows Embedded designed especially for portable navigation devices.

Microsoft chases satnav market (The Register)

Tue, 17 Jun 2008 11:16:23 GMT
Just look out the Windows for heaven's sake Microsoft has announced a new iteration of Windows Embedded, this time targeted at satellite navigation hardware, although it sneaks in a sideshow capability to keep the Windows Vista connection alive.…

Microsoft GPS işine El Attı

Tue, 17 Jun 2008 15:11:05 -0700
Microsoft GPS işine el attı Yazılım devinin yaptığı bir açıklama, TomTom, Garmin gibi navigasyon devlerini korkutmalı mı? Microsoft, yaptığı bir açıklama ile taşınabilir GPS cihazlarına Windows Embedded NavReady 2009 adını verdiği bir ürünle gireceğinin sinyallerini verdi, bu hareket Garmin ve TomTom gibi firmaları korkutmalı mı bunu ilerleyen günlerde göreceğiz. “Windows Embedded NavReady 2009″ ya da kısaltmak istersek WiENR 2009, görünüşe bakılırsa sadece bir “navigasyon” aracı olmayaca

bluetooth cordless phones