A sensor hub is a
microcontroller unit/
coprocessor
A coprocessor is a computer processor used to supplement the functions of the primary processor (the CPU). Operations performed by the coprocessor may be floating-point arithmetic, graphics, signal processing, string processing, cryptography or ...
/
DSP set that helps to integrate data from different sensors and process them. This technology can help off-load these jobs from a product's main
central processing unit
A central processing unit (CPU), also called a central processor, main processor, or just processor, is the primary Processor (computing), processor in a given computer. Its electronic circuitry executes Instruction (computing), instructions ...
, thus saving battery consumption and providing a performance improvement.
Intel has the Intel Integrated Sensor Hub. Starting from
Cherrytrail and
Haswell, many Intel processors offers on package sensor hub. The
Samsung Galaxy Note II is the first smart phone with a sensor hub, which was launched in 2012.
Examples
Some devices with
Snapdragon 800 series chips, including
HTC One (M8),
Sony Xperia Z1,
LG G2, etc., have a sensor hub, the Qualcomm Snapdragon Sensor Core, and all
HiSilicon
HiSilicon ( zh, c=海思, p=Hǎisī) is a Chinese fabless semiconductor company based in Shenzhen, Guangdong province and wholly owned by Huawei. HiSilicon purchases licenses for CPU designs from ARM Holdings, including the ARM Cortex-A9 MPCore ...
Kirin 920 devices have sensor hub embedded in the chipset with its successor Kirin 925 integrated an i3 chip with same function into it.
Some other devices that are not using these chips but with a sensor hub integrated are listed below:
References
Integrated circuits
Digital signal processing
Digital signal processors
Embedded microprocessors
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