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June 7, 2022

What is Bluetooth tech and how use it?

Filed under: Signal Academy — Tags: , , — 3:34 pm

What is Bluetooth tech?

Bluetooth is a telecommunications industry specification that describes how mobile devices, computers, and other devices can easily communicate with each other using a short-range wireless connection. The technology got its unusual name in honor of Harald Bluetooth, king of Denmark in the mid-10th century.

What is Bluetooth used for?

Early Bluetooth versions allowed users of cellular phones, pagers, and personal digital assistants to buy a three-in-one phone that could double as a portable phone at home or in the office, get quickly synchronized with information in a desktop or notebook computer, initiate the sending or receiving of a fax, initiate a printout, and, in general, have all mobile and fixed computer devices be coordinated over a short distance.

More recent Bluetooth versions make it possible for a user to place hands-free phone calls through a mobile phone or connect wireless headphones to a smartphone’s music playlist, for example. Bluetooth technology can simplify tasks that previously involved copious wires strewn among peripheral devices. For instance, with a Bluetooth-enabled printer, one can connect wirelessly with a desktop, laptop, or mobile device and print out documents. It is also possible to sync a wireless keyboard with a tablet-style device, such as an Apple iPad or Kindle Fire, or even a DVD player with a television.

Additionally, mobile operating systems allow users to stream media, such as movies, television shows, and music, to compatible TVs, speakers, and media players via Bluetooth. With an eye toward the future of Bluetooth, companies such as LG are manufacturing televisions with built-in Bluetooth technology that can display 3D images users view through special “active-shutter” glasses. Though this technology is in its formative stages, it’s gotten an enthusiastic reception from gamers.

Laptop or desktop computers without built-in Bluetooth can gain those capabilities through an inexpensive USB dongle. The one caveat here is Bluetooth technology typically uses considerable battery power, so it’s suggested that it be monitored closely by the user to prevent a device’s battery from running down.

How does Bluetooth work?

Bluetooth technology requires that a low-cost transceiver chip be included in each device. The transceiver transmits and receives in a previously unused frequency band of 2.45 GHz that is available globally — with some variation of bandwidth in different countries. In addition to data, up to three voice channels are available. Each device has a unique 48-bit address from the IEEE 802 standard. Bluetooth connections can be a point to point or multipoint.

The maximum Bluetooth range is 10 meters. Data can be exchanged at a rate of 1 megabit per second — up to 2 Mbps in the second generation of the technology. A frequency hop scheme allows devices to communicate even in areas with a great deal of electromagnetic interference. Built-in encryption and verification are provided.

What is difference between Wi-Fi and Bluetooth?

Bluetooth and WiFi are both wireless technologies for connecting your devices, but they are quite different. While WiFi is mainly used to connect your devices to the internet, Bluetooth is only used to connect your devices to each other.

What are the similarities between WIFI and Bluetooth?

The similarities in both are frequency because both technologies have the same frequency which is 2.4 GHz. Bluetooth is a nonresident tool while wifi is residential equipment and its purposes. Both technologies are wireless but for different purposes.


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