Bluetooth technology

Bluetooth The convergence of computing and communications products, has developed a Bluetooth technology performed. Among short-range wireless data usage to a new level, this technology is expected to dominate both the home and business market. now not complicated tangle of cables and wire is required to connect electronic devices. A revolutionary technology called Bluetooth allows for replacing the cumbersome cables used today on a laptop with a mobile phone connected to a universal low-cost, short-range radio link. Printers, PDAs, desktops, fax machines, keyboards, and virtually any other digital device can be part of the Bluetooth system. Bluetooth is faster than mobile phones, including the upcoming third-generation, or 3G, high-speed wireless transmission of data. technology Bluetooth is a universal radio interface 2 , 45 GHz ISM frequency band on a global basis functions. The interface consists of hardware using ICs, radio frequency chip, and the baseband chip. The parts that work together on air radio signals, which can put a different chipset to contact embedded in other product areas. This makes it easier to do everything from networking of different types of computers. Transfer data between digital phone Bluetooth can transmit through solid, non-metallic items. Its nominal link range from 10 cm to 10 m, which can be extended to 100 m by increasing the transmit power. Designed with a noisy radio frequency work using Bluetooth wireless rapid identification and frequency hopping scheme stable link. Bluetooth radio modules avoid interference signals by hopping to a new frequency after transmitting or receiving a packet. Short range and fast hopping limit the impact of domestic and professional microwave. Limiting the impact of noise on long-distance links using Forward Error correction (FEC). Encoding has been optimized for an uncoordinated environment. The Bluetooth baseband protocol is a combination of circuit and packet transfer. These spaces can be reserved for synchronous packets. Each packet is transmitted on a different hop frequency. Nominally covers a packet is a single slot, but can be expanded to cover up to five slots. The technology supports both isochronous and asynchronous services, easy integration of TCP / IP for networking. Support an asynchronous data channel, up to three simultaneous synchronous voice channels, or a channel which simultaneously supports asynchronous data and synchronous voice. Each voice channel supports asynchronous 64kbps (voice) link. Can support asynchronous channels of unbalanced link 721 kbps maximum in both directions, while a 57.6 kbps in return direction, or a symmetric compound 432.6kbps. best BCA BBA and MBA colleges in NCR best management college in Delhi How A Bluetooth system includes a radio, a link controller, link manager and Software. The Bluetooth radio interface at a nominal antenna power of 0 dBm is. The following interfaces are already in the FCC rules for ISM band power level to 0 dBm. Spread spectrum allows the optional use with power up to 100 mW in the world. It is frequency hopping in 79 hops displaced 1 MHz, starting at 2.402 GHz and achieved cessation 2.480 Hz. Bandwidth is controlled by an internal software counter. The maximum frequency hopping 1600 hops / sec baseband describes the specifications of digital signal processing hardware component exams Bluetooth link controller, the baseband protocol and other low-level link routine. the piconet is a group of eight two devices via Bluetooth technology is connected. Before any connections are made in a piconet, all devices in standby mode. In this mode, an unconnected unit periodically listens to the messages every 1.28 seconds. Each time a device wakes up, listening to a range of 32 hop frequencies defined for this unit. The number of hop frequencies is 32 for most countries, with the exception of Japan, Spain and France. Each of these devices is the master of the process connection. technology developers Bluetooth technology developed by the joint contributions of the members of the Bluetooth Special Interest Group. Intel brings architectural knowledge, advanced silicon technology, manufacturing expertise and software components in the group. Ericsson wore the basics of radio technology. Nokia managed wireless technologies and mobile software. IBM and Toshiba have developed a standard specification for integrating Bluetooth technology in mobile devices. Microsoft, Lucent Technologies, Motorola, and 3Com signed as the main promoters of Bluetooth. Many small businesses around the world signed for the free right to the new standard. The last word /> Bluetooth technology was developed as an open specification and is free to sign up all the member companies of the Bluetooth initiative to be licensed. The rapid spread of technology to allow through a wide range of mobile products and equipment. Products with Bluetooth radio is built to hit the market expected soon.