Bluetooth Technology Terms

 
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Bluetooth Technology Terms

Bluetooth Classic

A legacy standard for personal area networks made popular by audio streaming to cell phone headsets

Operates in the 2.4-GHz ISM1 Band with GFSK2 modulation and supports up to a 3-Mbps data rate


Bluetooth Low Energy (BLE)

A standard for short-range, low-power wireless applications that communicates state or control information

Operates in the 2.4-GHz ISM1 Band with GFSK2 modulation and supports a 1-Mbps data rate

Not backward-compatible with Bluetooth Classic


Bluetooth 4.0/4.1/4.2

Bluetooth 4.0 [2010] is an upgraded Bluetooth Classic specification that adds BLE

Bluetooth 4.1 [2013] improves security, throughput and power consumption

Bluetooth 4.2 [2014] increases packet length, and improves privacy and security

 

Bluetooth Smart

A brand for Bluetooth 4.0/4.1/4.2 products that support only BLE


Bluetooth Smart Ready

A brand for Bluetooth 4.0/4.1/4.2 products that support both Bluetooth Classic and BLE


Bluetooth Special Interest Group (SIG)

The organization that oversees the development and licensing of Bluetooth standards


BLE Protocol Stack (BLE Stack)

Firmware that implements the Bluetooth 4.0/4.1 specification to provide BLE communication


BLE Profile (Profile)

A Bluetooth specification that describes a set of operations and behaviors that devices use to communicate with one another

Ensures interoperability when two or more devices use a common Profile

For example, keyboards use the HID Profile and Heart Rate Monitors (HRMs) use the HRM Profile


Analog Front End (AFE)

An analog signal-conditioning circuit that uses opamps, filters and comparators to interface to an analog-to-digital converter (ADC)


Internet of Things (IoT)

An expansion of the Internet to include everyday physical objects such as thermostats