![]() ![]() The transfer rate was also improved and is capable of transmitting from 25 Mbps up to 32 Mbps. With the inclusion of the BLE concept, which enables longer synchronization, the reach of Bluetooth 4.1 and Bluetooth 4.2 technologies reached other devices, such as medical equipment or performance trackers for athletes. This generates a lower power consumption, something very useful for those devices designed for long use. Among the improvements of these Bluetooth types is the novelty of Bluetooth Smart, which, apart from handling the previous features as Bluetooth HS, adds Bluetooth Low Energy (BLE) technology. This version was released in 2010 and featured Bluetooth 4.1 and Bluetooth 4.2 updates. This new feature was called MAC/PHY alternative. They also added as an alternative the use of wifi for the transfer of very heavy data packets. With faster transfer speeds of up to 24 Mbps, Bluetooth 3.0 revolutionized the use of the technology. Bluetooth V3īluetooth 3.0 bluetooth types, launched in 2009, added HS (High Speed) capability, which made it possible to transfer heavier data, such as videos or audio files. They also introduced Oler Subrating technology, which enabled lower energy consumption. The bluetooth 2.1 update brought an improvement focused on user security: Secure Simple Pairing (SSP). In BR it was possible to transmit at 1 Mbps, while in EDR Bluetooth, the transfer increased up to 2Mbps, and on rare occasions achieved a transfer close to 3Mbps. In addition, they added a higher transmission rate, hence the concept added to these types of Bluetooth: BR/EDR (Basic rate/Enhanced Data Rate). They achieved automatic connection between various mobile devices, thanks to the addition of a menu that made it possible to select and detect other nearby Bluetooth-capable equipment. These types of Bluetooth enabled faster and easier connection to users. The transmission rate of the Bluetooth 1 versions was around 721 kbps. These versions were followed by Bluetooth 1.1 and 1.2, which began to be recognized as standard media for wireless data transmission. Today they are already obsolete, as they presented several connectivity problems between devices. ![]() The first bluetooth receivers had version v1.0 and v1.0B. Class 4: They have a maximum range of 0.5 meters and a power of 0.5 mW.īluetooth technology has several versions that have improved its performance considerably: Bluetooth v1.Class 3: Their range reaches 1 meter and they have a power of 1mW.Class 2: Its connectivity range reaches 20 meters and has a power of 2.5 mW.Class 1: They have a connectivity range of up to 100 meters and a power consumption of 100 mW.Bluetooth devices are classified into four classes according to their capability: Secondly, a CPU is responsible for processing the digital signals. The first is a radio device that is responsible for transmitting the signal. Initially operating at distances of less than one meter, they can now exceed 100 meters.īluetooth devices have two fundamental parts for their operation. The connection range is another aspect that has improved considerably. After several generations, the different types of current bluetooth have speeds of up to 24Mbs. Transmission speed and connectivity rangeĪt the birth of Bluetooth technology, it could transmit data at a speed of 720 kbs, an amazing capacity for the time but which today seems derisory. Nowadays, its use is widespread and we can find it in many electrical devices, such as televisions, Bluetooth speakers or headphones, GPS navigators, etc., and it's even present in the most modern household appliances. In the beginning this technology worked mainly on cell phones, as it provides a good option for transferring files for free. This partnership brought together several leading companies in the technology and telecommunications industries, such as Nokia, Intel, Ericsson, Toshiba and IBM, which were later joined by Microsoft and Motorola, among others. Later, in 1999, a special group was created to make advances in Bluetooth technology: the Special Interest Group (SIG). It's named after Harald Blatand, a Norse king known for his ease of communication, and whose English translation would be Harold Bluetooth. Its origins date back to 1994, when the Ericsson company began researching a new method for sending files over telephones, looking for a way to keep cost and power consumption low. ![]()
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