Sunday , May 22 2022

Samsung is developing technology to control televisions through their brains


10 curious facts about Bluetooth technology

Almost every device on the market supports Bluetooth technology. But what is Bluetooth? Simply put, Bluetooth is a way for two close devices to transfer data to each other.

Use Use curious technology received about Bluetooth technology. We learn from him the difference between other common wireless technologies such as Bluetooth and Wi-Fi or NFC, the pros and cons of technology, where the name comes from and so on.

What is Bluetooth?

Bluetooth is a wireless technology standard that aims to connect gadgets without wires. The Bluetooth module is a small part of the chip in your device and allows you to communicate wirelessly with Bluetooth devices on other devices. In general, Bluetooth is used to transfer small amounts of data to avoid using too much battery and to maintain a stable connection over short distances.

Who Invented Bluetooth Technology?

Bluetooth technology is developed by a team of engineers working for Ericsson. Jaar Haartensen, the electrical engineer of Ericsson, was accepted as the inventor of Bluetooth. Haardsen said he developed the standard in 1994 but did not know how to be baptized for a long time.

Why is technology called Bluetooth?

Although Ericsson had invented technology, other companies had to accept Bluetooth and use it on their devices. The name actually comes from Intel, an Ericsson partner that has been running Jim Krädach.

The technology was named after Harald Bludut, one of the Danish and Norwegian kings. Similar to Bluetooth technology that combines protocol protocols, it is known to unite Danish tribes in a kingdom.

Who owns the Bluetooth standard?

No one has "not" Bluetooth, but the use and progress is managed by someone else. To ensure that Bluetooth is a universal communication protocol, a group of companies in 1998 created the Bluetooth Special Interest Group (SIG), a non-profit group.

Today, Bluetooth SIG develops new Bluetooth standards such as Bluetooth 5 and licensing partner technology and membership. Currently, the Bluetooth SIG has more than 30,000 members.

How does Bluetooth work?

Bluetooth transmits data using low-power radio waves, mostly in the 2.4 GHz spectrum. This short-range frequency is often used by most devices that need a wireless connection, including Wi-Fi routers.

A technique called "frequency hopping" is used to distinguish Bluetooth from other wireless standards. It's a complicated technology, but it's just a description. Bluetooth uses 79 radio frequency bands at the 2.4 GHz frequency above. When sending data, Bluetooth primarily divides this data into smaller packets. These packages are shipped separately from these 79 bands and cannot change the Bluetooth bands quickly so that no rows are clogged.

With this intelligent "data skip", Bluetooth can allow up to eight devices to connect and communicate with each other at the same time.

Does it use Bluetooth data?

No! Bluetooth does not use any data. When Bluetooth connects two devices, it creates something called a Personal Area Network (PAN). PAN does not require an internet or mobile file transfer service or anything else.

Bluetooth features

You may have heard that Bluetooth is separated as Basic Speed ​​/ Enhanced Data Rate (BR / EDR) and Low Energy (LE). You should not deal with this division in the past and now. Over the last five years most devices on the market have Bluetooth 4.0, 4.1 or 4.2 – all of them have Low Energy priority.

Separating data into smaller packages and sending them separately is the reason why Bluetooth is used in small data transfers, which often do not need to happen quickly. If you need to transfer large amounts of data quickly, there are better wireless Bluetooth protocols. Specifically, Bluetooth 4.2 can send data up to 1Mbps, which will increase 2Mbps with Bluetooth 5. The distance between the devices is approximately 10-15m for Bluetooth 4.2, but Bluetooth will reach up to 5 to 40m.

What is the difference between Bluetooth and Wi-Fi?

Technically, Wi-Fi and Bluetooth are wireless protocols that allow two devices to communicate with each other without wires. However, the benefits and applications of each of these technologies are different. Since Wi-Fi is a more powerful and fast connection, it consumes more battery power. Bluetooth focusing battery performance.

Does my computer or notebook support Bluetooth?

Bluetooth is a common and widely used technology supported by most smartphones, tablets, laptops and other wireless user devices. However, the technology of desktop computers is not common. If your computer does not support Bluetooth, you can use a motherboard with built-in Bluetooth.

Is Bluetooth Technology Secure?

Over the years, security experts have discovered several Bluetooth weaknesses. The last major vulnerability called BlueBorne was opened in 2017. The Bluetooth SIG allows them to be secured at a good time. However, there are a few steps you can take to provide extra security:

1. Change your Bluetooth & # 39; s four-digit PIN code. Generally, this is a simple procedure that varies from device to device. The most common default PIN is 0000. And if hackers know it, change it as soon as you haven't done it before.

2. Turn off Bluetooth when not in use. This is the best thing you can do to ensure the security of your data.

See what Bluetooth 5 is and how it works

Source link