{"id":584,"date":"2023-03-09T09:03:37","date_gmt":"2023-03-09T09:03:37","guid":{"rendered":"https:\/\/aqipa-pure.klixpert.io\/?p=584"},"modified":"2023-03-13T07:54:06","modified_gmt":"2023-03-13T07:54:06","slug":"bluetooth","status":"publish","type":"post","link":"https:\/www.pure.com\/en-gb\/music\/bluetooth\/","title":{"rendered":"Bluetooth – here to stay!"},"content":{"rendered":"\n

Whether you are using your smartphone, headphones, car radio, loudspeakers or Hi-Fi system – you probably won\u2019t be using it without a certain technology that\u2019s become ubiquitous in today\u2019s world: Bluetooth. Bluetooth is an established standard for cable-free listening to audio content or for communicating via telephone systems using headsets. There are even so-called Bluetooth radios<\/a> like the Evoke H3<\/a> or the Evoke Home Special Edition<\/a> by Pure. <\/p>\n\n\n\n

While back in the day cables were necessary in order to establish a connection, and devices required integrated audio players and loudspeakers, these days there is a higher degree of freedom thanks to Bluetooth. It is, probably most prominently, also used to operate input devices such as cordless computer mice or keyboards. <\/p>\n\n\n\n

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Bluetooth radio – view all products!<\/a><\/div>\n<\/div>\n\n\n\n


And while Bluetooth might be most commonly used in connection with smartphones and gaming, it is also being put to industrial use, so to speak, for instance as part of housing technology. Beyond that, it finds its use in any area where IoT (Internet of Things) is slowly but surely turning into an established standard itself, enabling devices, machines and robots to communicate with one another by means of Bluetooth. The medical industry is yet another example. Here, Bluetooth is incorporated in orthopaedic prostheses or in sensors for measuring instruments used by patients suffering from diabetes. <\/p>\n\n\n\n

The technology\u2019s newest version, Bluetooth 5.2, is expected to bring significant progress for navigation and location devices. It is set to become the new standard for gadgets guiding visitors through museums and exhibitions, while it will also ease navigation at train stations and airports, and offer support to first responders trying to locate missing persons.<\/p>\n\n\n\n

In fact, Bluetooth is an absolutely relevant technology, so it is not astounding that there are uncounted scientists working on constantly developing the standard, improving its quality and finding new ways to utilize it. In this article, we will not only take a closer look at the technology\u2019s roots and the different versions available, but also at where it got its name from.<\/p>\n\n\n\n

What exactly is Bluetooth?<\/h2>\n\n\n\n

Bluetooth is a wireless communications technology that can transmit data – including music, videos and images – over short distances. <\/p>\n\n\n\n

The foundations for the development of Bluetooth were laid in the 1990s when the Swedish enterprise Ericsson introduced a project called \u201cShort Link\u201d. The initial goal was to achieve better transmission quality than the one possible with standard radios while also eliminating the potential for interferences. In the late 1990s, the technology was further developed by the so-called \u201cBluetooth Special Interest Group\u201d (SIG) to finally become the new industry standard for the telecommunications industry. <\/p>\n\n\n\n

Most of the interest group\u2019s members involved in the development were Scandinavian companies such as the \u201cShort Link\u201d initiator Ericsson, but also Nokia, a pioneer in the development of mobile phones or the multinational corporation Intel. Even today, individuals as well as organizations can join the SIG on bluetooth.com to play their part in developing the technology further.<\/p>\n\n\n\n

Where does the name Bluetooth come from, and who was Harald Bluetooth?<\/h2>\n\n\n\n

Since the technology was mostly developed in Northern Europe, it was also named after a historic Scandinavian figure. Bluetooth owes its name to a certain Harald Blatand, or Harald Bluetooth, who lived in Denmark from 910 bis 987 and was renowned for his formidable communicative skills. By uniting the different Danish tribes, he laid the foundations for the Kingdom of Denmark, before he went on to introduce a treaty between Denmark, Sweden and Norway, thus stabilising the entire region.

In reference to Harald Blatand, the Bluetooth logo is based on the two Nordic runes for H and B.<\/p>\n\n\n

\"Where<\/picture><\/figure><\/div>\n\n\n

What are the advantages of Bluetooth?<\/h2>\n\n\n\n

As already mentioned, one of the goals of Bluetooth was to get rid of interferences. Interferences are the result of overlapping signals that can lead to the malfunction of wireless systems, for instance caused by the presence of different radio waves in a room or by electrical and magnetic fields emitted by mobile phones, microwaves or computers. <\/p>\n\n\n\n

Bluetooth uses specifically coded radio waves to send and receive data between two paired devices. The technology enables the transmission of audio- and video streams as well as images by sharing them on compatible devices. It is commonly used to transmit music from a smartphone to a car radio but even outside of  automobiles it can be used to play music from a mobile phone or other Bluetooth-enabled terminal device on a radio. Bluetooth-enabled radios by Pure<\/a> additionally have the ability to receive radio programmes – either the classic, analog, way or digitally. <\/p>\n\n\n\n

One of the main benefits of Bluetooth is the fact that it is cable-free, thus putting an end to the jumble of cables that would usually ensue. Also, since it doesn\u2019t require cables, there is no more need for adapters and sockets. And since the already mentioned SIG (Bluetooth Special Interest Group) keeps developing, it seems to be a given that \u201cBluetooth has come to stay.\u201d<\/p>\n\n\n

\"Evoke<\/picture><\/figure><\/div>\n\n\n

What is Bluetooth pairing?<\/h2>\n\n\n\n

The process of pairing interconnects two Bluetooth-enabled devices, for instance a smartphone and Bluetooth-enabled headphones or a Bluetooth-enabled radio. In order to do so, both gadgets need to have their Bluetooth feature activated and be in close proximity to each other – ideally in the same room.<\/p>\n\n\n\n

Both the sending and receiving device can be found under their respective device names. Closed pairing can seem somewhat tedious at times, however, it serves to guarantee the safe and uninterrupted transmission of data via Bluetooth connection.<\/p>\n\n\n\n

What is the most current Bluetooth version?<\/h2>\n\n\n\n

The latest version is Bluetooth 5.2 and it targets the trend of wireless IoT technologies. The \u201cInternet of Things\u201d describes the smart connection of devices. An IoT-enabled washing machine for instance is able to notify its user when it\u2019s about to run out of washing powder, or, even better, order replenishment from the manufacturer itself. <\/p>\n\n\n\n

Bluetooth version<\/strong><\/th>Launched<\/strong><\/th>Data rate<\/strong><\/th>Relevant updates<\/strong><\/th><\/tr><\/thead>
Bluetooth 1.0a<\/strong><\/td>July 1999<\/td>732.2 kbit\/s<\/td>First official version<\/td><\/tr>
Bluetooth 1.0b<\/strong><\/td>December 1999<\/td>732.2 kbit\/s<\/td>General improvements<\/td><\/tr>
Bluetooth 1.1<\/strong><\/td>February 2001<\/td>732,2 kbit\/s<\/td>Cleared of connectivity and safety issues; first product version ready for market; encryption; allowing for up to seven simultaneous connections<\/td><\/tr>
Bluetooth 1.2<\/strong><\/td>November 2003<\/td>1 Mbit\/s<\/td>Downward compatibility with Bluetooth 1.1; less delicate thanks to AFH (Adaptive Frequency Hopping)<\/td><\/tr>
Bluetooth 2.0 + EDR<\/strong><\/td>November 2004<\/td>2.1 Mbit\/s<\/td>Three-times increased data rate thanks to EDR (Enhanced Data Rate); various energy-saving procedures; additional use of NFC (Near Field Communication) when pairing<\/td><\/tr>
Bluetooth 2.1 + EDR<\/strong><\/td>August 2007<\/td>2.1 Mbit\/s<\/td>Automatic connection without PIN thanks to Secure Simple Pairing<\/td><\/tr>
Bluetooth 3.0 + HS<\/strong><\/td>April 2009<\/td>24 Mbit\/s<\/td>Additional high-speed channel (HS) on Wi-Fi-basis and UBB (Ultra Broadband)<\/td><\/tr>
Bluetooth 4.0 LE ( Bluetooth SMART)<\/strong><\/td>December 2009<\/td>24 Mbit\/s<\/td>Low Energy (LE) protocol stack for various energy-saving procedures (e.g. GATT profile) for small devices; improved error correction; 128-bit encryption<\/td><\/tr>
Bluetooth 4.1<\/strong><\/td>December 2013<\/td>25 Mbit\/s<\/td>No more need for intermediaries for compact devices; Pv6<\/td><\/tr>
Bluetooth 4.2<\/strong><\/td>December 2014<\/td>25 Mbit\/s<\/td>General improvements<\/td><\/tr>
Bluetooth 5<\/strong><\/td>December 2016<\/td>50 Mbit\/s<\/td>Clearly improved range and data rate<\/td><\/tr>
Bluetooth 5.1<\/strong><\/td>December 2019<\/td>50 Mbit\/s<\/td>Ability to navigate indoors, find keys and provide information on pieces of art in museums<\/td><\/tr>
Bluetooth 5.2<\/strong><\/td>December 2020<\/td>50 Mbit\/s<\/td>Low-energy audio for hearing aids, infotainment and gaming headsets, IoT-enabled devices can communicate directly without the need for an app<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Advantages of the most current Bluetooth version 5.2<\/h3>\n\n\n\n

While version 5.1 offered an important update for all Corona notification apps by allowing the measurement and documentation of the distance between devices, version 5.2 focuses on \u201clow energy audio\u201d. This means it is able to transmit a signal to an unlimited number of recipients, making it useful for a number of purposes.<\/p>\n\n\n\n

The intention behind the update was to enable the operation of certain services without the need for active pairing, apps or any additional software. Amongst others, the following procedures and operations are made possible thanks to an increased reach as well as improved localisation abilities: <\/p>\n\n\n

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