[permalink] [id link]
The Bluetooth Core Specification provides for the connection of two or more piconets to form a scatternet, in which certain devices simultaneously play the master role in one piconet and the slave role in another.
from
Wikipedia
Some Related Sentences
Bluetooth and Core
* Specification of the Bluetooth System 2. 0 + EDR, Core System Package, Part B " Baseband Specification ", Section 9 " Audio ", November 2004
Bluetooth and provides
Bluetooth provides a secure way to connect and exchange information between devices such as faxes, mobile phones, telephones, laptops, personal computers, printers, Global Positioning System ( GPS ) receivers, digital cameras, and video game consoles.
Bluetooth technology provides a way to exchange information between wireless devices such as personal digital assistants ( PDAs ), mobile phones, laptops, computers, printers and digital cameras via a secure, low-cost, globally available short-range radio frequency band.
For example, both Bluetooth radio and invisible infrared light provides a WPAN for interconnecting a headset to a laptop.
Bluetooth and for
Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances ( using short-wavelength radio transmissions in the ISM band from 2400 – 2480 MHz ) from fixed and mobile devices, creating personal area networks ( PANs ) with high levels of security.
Bluetooth uses a radio technology called frequency-hopping spread spectrum, which chops up the data being sent and transmits chunks of it on up to 79 bands ( 1 MHz each ; centered from 2402 to 2480 MHz ) in the range 2, 400 – 2, 483. 5 MHz ( allowing for guard bands ).
Bluetooth is a standard wire-replacement communications protocol primarily designed for low power consumption, with a short range ( power-class-dependent, but effective ranges vary in practice ; see table below ) based on low-cost transceiver microchips in each device.
In June 2005, Yaniv Shaked and Avishai Wool published a paper describing both passive and active methods for obtaining the PIN for a Bluetooth link.
Maximum power output from a Bluetooth radio is 100 mW, 2. 5 mW, and 1 mW for Class 1, Class 2, and Class 3 devices respectively, which puts Class 1 at a lower level than mobile phones, and the other two classes much lower.
The Bluetooth Innovation World Cup, a marketing initiative of the Bluetooth Special Interest Group ( SIG ), is an international competition encouraging the development of innovations for applications leveraging the Bluetooth low energy wireless technology in sports, fitness and health care products.
On February 8, 2010, Edward Sazonov, Physical Activity Innovations LLC, was awarded the title of Bluetooth Innovator of the Year for 2009.
The Bluetooth SIG announced the start of the second Innovation World Cup on 1 June 2010, with a focus on applications for the sports & fitness, health care, and home information and control markets.
* Java APIs for Bluetooth
These trademarks are licensed out for use to companies that are incorporating Bluetooth wireless technology into their products.
The SIG also manages the Bluetooth SIG Qualification program, a certification process required for any product using Bluetooth wireless technology and a pre-condition of the intellectual property license for Bluetooth technology.
The main tasks for the SIG are to publish the Bluetooth specifications, protect the Bluetooth trademarks and evangelize Bluetooth wireless technology.
* Communications Daughter Card, an Ethernet, Modem or Bluetooth expansion card for mobiles
Operates clearly in common congested domestic radio traffic situations, for instance, generally immune to interference from other DECT systems, Wi-Fi networks, video senders, Bluetooth technology, baby monitors and other wireless devices.
Bluetooth and connection
* bluetooth remote: The Accu-Chek Combo Insulin Pump System, offers a two-way Bluetooth wireless connection between the pump and the blood glucose meter.
Depending on the manufacturer of the eCall system, it could be mobile phone based ( Bluetooth connection to an in-vehicle interface ), an integrated eCall device, or a functionality of a broader system like navigation, Telematics device, or tolling device.
It ran only under Mac OS X and was used to synchronize contact and calendar data from Address Book and iCal with many non-Apple SyncML-enabled mobile phones via a Bluetooth or USB connection.
Keynote Remote is an iOS application that can control Keynote presentations from an iPhone, iPod Touch or iPad over a Wi-Fi network or Bluetooth connection, and was released through the app store with a price of $ 0. 99
Other products being released fit a new category called bluedildonics, which allow a sex toy to be controlled remotely via a Bluetooth connection.
In order to achieve a file transfer over Android Beam ( An NFC sharing service ), the software automatically completes the steps of enabling, pairing and establishing a Bluetooth connection when doing a file transfer via Android Beam.
In addition, the interior can be equipped with accessories such as Bluetooth phone connection, wireless voice control, a USB port, a CD Radio, MP3, an AUX connector, steering wheel audio controls and a speaker system consisting of six speakers, a subwoofer and an amplifier.
* Roomote iOS app for controlling Roomba via serial or Bluetooth connection ( Open source: http :// github. com / brianpratt / roomote )
It includes e-Gear transmission, Super Trofeo body kit ( tail wing, front and tail diffuser, side skirts ), front and side airbags, TFT screen with USB / iPod connection, GPS with Bluetooth, front axle height control.
Optional equipment includes carbon-fiber ceramic brake discs, a tubular interior roll cage, 4-point safety belts and fire extinguisher, satellite navigation, with Bluetooth connection for mobile phones, an anti-theft system, and a lifting system that raises the front axle.
The speed of the Bluetooth connection can only be set to a maximum of 128 kbit / s.
Mobile games are usually downloaded via the mobile operator's network, but in some cases are also loaded in the mobile handsets when purchased, via infrared connection, Bluetooth, or memory card.
Multiplayer functionality is achieved through Infrared, Bluetooth, GPRS, 3G, Wi-Fi, AI, MMS, or Wireless LAN connection.
Support is based on general features and may vary depending on features of particular device, OpenSync bugs, or connection method used ( Bluetooth, USB, IRDA ).
Windows Vista drops support for the Direct cable connection feature as ethernet, Wi-Fi and Bluetooth have become ubiquitous on current generation computers.
Bluesnarfing is the unauthorized access of information from a wireless device through a Bluetooth connection, often between phones, desktops, laptops, and PDAs.
Any device with its Bluetooth connection turned on and set to " discoverable " ( able to be found by other Bluetooth devices in range ) may be susceptible to Bluejacking, and possibly to Bluesnarfing when, and if, Bluesnarfing of the current Bluetooth security becomes possible.
Internet Connection Sharing is supported on compatible devices, which in mobile phones allows the phone to make its Internet connection available to computers via USB and Bluetooth.
Pathway to Glory can be played in single-player and multiplayer mode, using either hot-seat, N-Gage Arena or a local Bluetooth connection.
For the 2009 model year, all Rio and Rio5 trims received standard Sirius Satellite Radio ( complimentary for three months ) and radios with USB port & auxiliary jack, the auxiliary jack substituting for a Bluetooth mobile phone connection for devices with an earphone jack, e. g., the iPhone.
In addition to the USB connection, some of the more advanced units are now starting to allow syncing through a wireless connection, such as via WiFi or Bluetooth.
Bluetooth and two
The two kinds of wireless technologies used for WPAN are Bluetooth and Infrared Data Association.
At DEF CON 12, a group of hackers known as " Flexilis " successfully connected two Bluetooth devices more than half a mile ( 800 m ) away.
Bluetooth 2 will use-DQPSK at its lower rate ( 2 Mbit / s ) and 8-DPSK at its higher rate ( 3 Mbit / s ) when the link between the two devices is sufficiently robust.
In the 970s, Haakon Sigurdsson, Jarl of Lade, became the most powerful man in Norway, at first supported by Harald Bluetooth of Denmark and paying tribute to him — though the two later fell out over religious matters.
The larger of the two stones was raised by King Gorm's son, Harald Bluetooth in memory of his parents, celebrating his conquest of Denmark and Norway, and his conversion of the Danes to Christianity.
According to the Bluetooth Special Interest Group ( SIG ), in order to break into a Bluetooth device, a hacker must " Force two paired Bluetooth devices to break their connection ", known as Blueballing.
There are two models, one that includes a Bluetooth kit for cellphones or one that excludes this feature.
0.202 seconds.