Always-on Context Awareness

Smartphone, tablet and wearable OEMs, as well as application developers, are targeting a near-term future where our mobile devices are always aware of our surroundings and activity, and providing meaningful results and content. Called "Always-on Context Awareness", this is delivered through the computation and fusion of data from numerous sensors located within a mobile device.

Meets OEM Power Requirements

Application processors, as well as existing micro controller-based and ASSP-based sensor hubs, are not capable of operating at the ≤2% system power levels required by OEMs to enable always-on functionality.

The first solution capable of delivering always-on context awareness at the power levels required in mobile devices.

The solution is based on the ArcticLink® 3 S1 CSSP Sensor Hub platform, and contains a number of PSB technologies, including Communication Manager, Flexible Fusion Engine, and Sensor Manager.

System Architecture

The device autonomously manages and samples data from multiple sensors including the typical 9-axis motion sensors (accelerometer, magnetometer, and gyroscope) found in mobile devices, as well as other sensors such as ambient light, temperature and pressure. The device contains Sensor Platform Inc.’s “FreeMotion” library, which includes a context change detector, diversity check, and step counter. This off-the-shelf solution enables OEMs to immediately integrate best-in-class context awareness and motion sensor fusion algorithms into their devices quickly. By offloading the context change detection to the QuickLogic sensor hub, the application processor is kept asleep longer, and only woken when the sensor hub detects a change in context.

The Always-on Context Aware Sensor Hub Catalog CSSP is the ultra-low power sensor hub solution that delivers always-on context awareness in <300µW, enabling OEMs and software developers to unleash new applications and use cases previously thought unattainable.

Device Highlights

Sensor Hub Architecture


sensor hub 1
sensor hub 2
sensor hub 3
sensor hub 4
sensor hub 5
Communication Manager
  • Optimized data path to the application processor using SPI or HID over I²C
  • Smart FIFO prevents FIFO overrun: intelligent to interrupt latency
Flexible Fusion Engine (patent pending)
  • Finite state machine plus CISC-based Arithmetic Logic Unit processes all sensor data
  • Sensor Platform Inc's FreeMotion library supports always-on context awareness
  • High speed, accurate, processing of multi-axis sensor data for motion sensor fusion
Sensor Manager
  • Microcoded state machine and multi-second data buffer for programmable sensor management
  • Low power I²C controller with dynamic pull-ups to reduce wasted I/O power
  • QuickLogic maintains a comprehensive sensor QLV

OS Support

The Always-on Context Aware Sensor Hub is fully compatible with the Android OS. QuickLogic provides standard Android driver libraries to allow for quick integration to an OEM system.

Sensor Compatibility

The QuickLogic Always-on Context Aware Catalog CSSP is compatible with all major types (including accelerometers, gyroscopes, magnetometers and others) and manufacturers of mobile sensors. Contact QuickLogic to check compatibility for your application.

Ideal for Smartphones

The Always-on Context Aware Sensor Hub Catalog CSSP is ideal for smartphone devices where sensor algorithm and subsystem management is paramount to a great user experience

Ideal for Wearable Devices

The Always-on Context Aware Sensor Hub Catalog CSSP is ideal for wearable devices where sensor management must be performed at the lowest power possible

Ideal for Tablets

The Always-on Context Aware Sensor Hub Catalog CSSP is ideal for tablet devices that require 9-axis context awareness

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