![]() ![]() The first three versions of Bluetooth are now called the classic Bluetooth versions. In the meantime, let’s look at what has happened to Bluetooth since the first release in 1999. Let’s examine that in greater detail later when we look at the capabilities of Bluetooth 5.2. The list of devices is constantly expanding. In addition, their use has expanded to smartphones, wearable devices, and between various smart home devices and the Internet of Things (IoT) devices. In the early years, and to this day, Bluetooth has become commonly used for wireless headphones and speakers, other audio hardware, and keyboards, mice, and game controllers.Īnd now you find Bluetooth used in PCs, laptops, and tablets. Such quality connections with the mobility of no wires mean that many different uses have been found for Bluetooth over the years. This design feature ensures a quality connection providing enhanced sound quality with limited dropouts unless an object blocks the transmission. There’s a standard operating frequency of 2.402 – 2.480 GHz for all Bluetooth devices and all versions.ĭata or audio packets stay within this frequency range but can change from one specific frequency to another within that range when heavy congestion happens. Some Bluetooth devices use NFC (near field communication), allowing Bluetooth connections to be forged by simply touching the two devices together. It also means that transmission is much faster. Once pairing happens, it means that later connections don’t require the entry of access or security information, like passwords or passkeys. Pairing is the joining procedure between the two Bluetooth-enabled devices. That signal can be for data or audio but cannot happen until the two wireless devices pair with each other. How does Bluetooth work?īluetooth works by sending a signal from a transmitting device to a receiving device. Now back to details on how Bluetooth works. But it has stuck as the name to this day and is not likely to change. The founders chose it as a temporary name until they could think of something else. A rotting tooth in the king’s mouth earned him the nickname “Blue tooth.” ![]() The founders of Bluetooth SIG took the name “Bluetooth” from King Harald “Blåtand” Gormsson, a Danish king who united Denmark and Norway. It’s unusual because it doesn’t describe the technology, unlike the other wireless technologies, “radio frequency” and “infrared.” Bluetooth: Where Does the Name Come From? I’ll get into more detail on Bluetooth shortly. The Bluetooth Special Interest Group (SIG), now including over 35,000 companies, took over the specification development, managing the qualification program, and protecting the trademarks. However, it took four years to formalize the specifications as a standard, with the first version released in 1999. Instead of cable, it meant that short-wavelength UHF radio waves in the ISM band from 2.402 to 2.485 GHz transmitted the data. They developed it as an alternative to RS-232 data cables that were a standard for serial transmission of data at the time. Now let’s find out what is meant by the term “Bluetooth technology.” What is Bluetooth?īluetooth is a wireless (i.e., no wires used) technology that allows for data exchange over short distances based on a global wireless communication standard.Įricsson, the Swedish multinational company, headquartered in Stockholm, invented the technology from 1989 to 1994. Before We Start: Here’s a Brief History of the Different Bluetooth Versions Importantly too, I’ll take you through how the current version improves your connectivity experience and what future versions are likely to bring. This article will briefly explain what Bluetooth is, the history of its development, and how it has changed with each updated version. Have you ever wondered what that number means and how it affects the device you’re using? When you look at their specifications, you’ll see a version number attached to the Bluetooth capability installed in the device. ![]() Bluetooth technology is a common connectivity feature of most electronic devices these days, including devices in the IoT (Internet of Things). ![]()
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