Bluetooth

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Related to Bluetooth wireless: Bluetooth pairing, Bluetooth headset

Bluetooth

(protocol, standard)
A specification for short-range radio links between mobile computers, mobile phones, digital cameras, and other portable devices.

http://bluetooth.com.

Bluetooth

The standard wireless personal area network (WPAN) for short-range transmission of digital audio and data. Using radio waves, Bluetooth transmits through walls and other non-metal barriers. Although the term is synonymous with cellphone headsets and in-vehicle, hands-free telephony, Bluetooth is also used for wireless speakers, keyboards, mice, game controllers, smartwatches and more (for category details, see Bluetooth profiles).

Spread Spectrum Transmission
Using frequency hopping spread spectrum (FHSS), Bluetooth randomly changes to one of 79 channels 1,600 times per second in the same unlicensed 2.4 GHz band as Wi-Fi. See spread spectrum.

Bluetooth Versions (see table below)
Bluetooth 1.2 (Basic Data Rate) was the first widely used Bluetooth technology. Bluetooth 2.0 + EDR (Enhanced Data Rate) improved speed and interference handling. Bluetooth 3.0 + HS (High Speed) establishes the connection via Bluetooth but transfers data over Wi-Fi.

Version 4 added Bluetooth Low Energy (BLE). Branded as "Bluetooth Smart," BLE uses only a quarter of the power at 1 Mbps, and devices can transmit for years on watch batteries (see Bluetooth LE).

Scandinavian Origins
Named after ancient King Harald Blatan of Denmark, Sweden-based Ericsson developed Bluetooth and co-founded the governing body in 1998 (www.bluetooth.com). Bluetooth is also an IEEE personal area network (PAN) standard (see 802.15). Supporting point-to-point and multipoint architectures (see piconet), there are billions of Bluetooth devices in use. See Bluetooth glossary.
BLUETOOTH DATA RATES          Max. Data            Rate Version   (Mbps)

 1.2         1    "Bluetooth Classic"
 2.0 + EDR   3    "Bluetooth Classic"
 2.1 + EDR   3    "Bluetooth Classic"

 3.0 + HS   24    (over Wi-Fi)

 4.0         3
 4.0 + BLE   1    (Bluetooth LE)

 4.1   Improvements (see  Bluetooth 4.1)

 4.2 + BLE   1+   Designed for IoT
                    (see  Bluetooth 4.2)


 BLUETOOTH POWER CLASSES         Max.   Approx.        Power   Range Class   (mW)  (meters)

  1      100     100
  2      2.5      10
  3      1         1



Bluetooth = Headset
Because they are were so ubiquitous, "Bluetooth" initially became synonymous with "headset." However, Bluetooth connects many other devices.







Game Controllers
This "gamepad" from Sony uses Bluetooth to communicate with the PlayStation3 game console. See video game controller. (Image courtesy of Sony Corporation.)







Blue Teeth!!
This Oral-B toothbrush sends elapsed time to the app in the user's smartphone via Bluetooth to monitor brushing time and history.







The Bluetooth Logo
The stylized "B" displayed on this cellphone means it has been synchronized with a Bluetooth device.
References in periodicals archive ?
PicoConnect is designed to be compatible with all HP iPAQ PDAs that feature embedded Bluetooth technology, as well as those using the HP Bluetooth Wireless Pack.
Motorola is involved in the development and implementation of Bluetooth wireless technology, with a company-wide roadmap of Bluetooth products and as a member of the Promoter group, which leads the Bluetooth Special Interest Group (SIG).
From the company's first professional call center product, to its newest line of Bluetooth wireless headset systems, VXI has been at the forefront of translating an understanding of the needs of end-users into innovative, technologically-advanced voice communications solutions.
The Nuance certification proves that our VXI BlueParrott TalkPro B1000-GTX and B150-GTX Bluetooth wireless headset models deliver excellent accuracy and performance, making them the best Bluetooth headset choice available for Dragon NaturallySpeaking speech recognition software users.
In order to provide users with the most flexible wireless experience possible, the Xda Atom offers both Wireless LAN and Bluetooth wireless connectivity so customers can hop online at any hotspot or enjoy music wirelessly via Bluetooth headsets.
As part of the partnership, Cardo's scala-500 Bluetooth wireless headset will be among the featured products in CompUSA's commercial flier for January 2006, which is set to be distributed to 33 million US homes.
A new clamshell from Kyocera Wireless, the Xcursion KX160 features Bluetooth wireless technology for hands-free talking as well as a VGA camera with flash, 5x digital zoom and dedicated external camera buttons, all in a stylish compact design.
We've taken our best-selling notebook mouse design and removed the receiver to come up with a product that delivers the ultimate in convenience for those who have notebooks enabled with Bluetooth wireless technology.
Scosche has been synonymous with innovative car audio accessories and we are pleased to offer another first to market product with our Bluetooth wireless technology," said Kas Alves, vice president marketing and sales, Scosche Industries.
The Bluetooth Special Interest Group (SIG), comprised of leaders in the telecommunications, computing, automotive, and network industries, is driving development of Bluetooth wireless technology and bringing it to market.
The program enforces a consistent standard for implementing the Bluetooth wireless technology, and is important because successful qualification implies assured interoperability with different solutions and vendors.
PARIS -- Wavecom SA (Nasdaq:WVCM); (Euronext Nouveau Marche Euronext:AVM; ISIN: FR0000073066), a leader in pre-packaged wireless communications solutions for automotive, industrial machine-to-machine and mobile professional applications, and Baracoda SA, a leading manufacturer of Bluetooth solutions, today announce the launch of the new product from Baracoda based on Wavecom technology, the first GSM/GPRS/GPS & Bluetooth Wireless Gateway namely called "B-Box".