Bluetooth

Our everyday wireless necessity

Bluetooth:

Bluetooth is technology that enables us share our voice, music, photos, videos, and other information wirelessly between devices, e.g. phones, computer.

How does it work?

Bluetooth technology is a short range technology that meant to eliminate the inconvenience of line cables, but still maintaining a high level of security. In addition, Bluetooth connection can perform ‘multitask’. What does it meant by multitask? Multitask mean that one Bluetooth connection can be used in many other ways, when Bluetooth was not yet invented, every connection between devices require a specific cable or wire. Now, Bluetooth technology allows us to do multiple things with just one connection, e.g. we can send pictures to another devices through Bluetooth, and use the same connection to perform other task like playing music through a Bluetooth headphone.

Bluetooth 4.0:

The Bluetooth 4.0 is currently the latest version of Bluetooth, the main feature of this version is that it has an ultra-low peak, average and idle mode power consumption, and multi-vendor interoperability. As Bluetooth 4.0 is very energy efficient, according to the executive director of Bluetooth Mike Foley, “product that uses the new protocol could conceivably last for five to seven years before needing a fresh battery–likely outlasting the life of the product”, which once again showing how cost effective the new Bluetooth 4.0 is. Bluetooth 4.0 also has an enhanced range compare to the past versions, which make it a bit more convenient. Bluetooth high speed technology works by isolating activity from the AMPs, enabling the use of new radios without full system integration. Bluetooth 4.0 is based on CSR8000 IC, the characteristic of this IC is that it is energy efficient and it can be used in many ways e.g. for FM radio and Wi-Fi.

NFC (Near Field Communication):

NFC is a set of criterion for smartphones and similar devices to start radio communication with each other by bringing them into close rage, usually no more than a few centimeters. NFC is mainly use to transfer information e.g. photos, videos, etc. It is also possible for communication between a NFC device and an unpowered NFC chip, called a “tag”, this allow video or voice calls between devices through NFC. Another special feature or characteristic of NFC technology is the high speed pairing between devices, the science behind this is that NFC devices are able to receive and transmit data at the same time. Therefore, its device can pair each other with a higher speed compare to other Bluetooth or infrared.