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Send til en ven   Udskriv7/11 2011 kl. 16:39
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Tre-akset MEMS accelerometer med indbygget intelligens

STMicroelectronics lancerer markedets første MEMS-sensor med komplekse indlejrede funktioner til bevægelses-genkendelse (in english).

STMicroelectronics (ST) has introduced the industry’s first three-axis high-resolution accelerometer with two embedded finite-state machines.  These programmable blocks enable custom motion recognition inside the sensor, raising the bar in reducing system complexity and power consumption in motion-sensitive mobile phones and other smart consumer devices that let users answer calls, turn the ringer on or off, or launch applications like a pedometer, with a defined motion.

The embedded finite-state machines allow the user to implement customized motion-detection-based applications with a high level of flexibility, reducing the workload of the microprocessor by moving programming functionality inside the sensor. These basic programs identify specific motions or gestures, custom-defined in the instruction set that runs inside the sensor firmware, and initiate associated actions or applications.


- Integrated processing capability in MEMS sensors decreases power consumption at the system level, which is especially crucial in battery-hungry portable devices,” said Benedetto Vigna, Corporate Vice President and General Manager of ST’s Analog, MEMS and Sensor Group.

- An industry-unique feature, programmable state machines embedded in the sensor, also bring more freedom and flexibility to the design of motion-enabled consumer electronics.

ST’s LIS3DSH accelerometer provides extremely accurate output across full-scale ranges of ±2g/±4g/±8g/±16g and boasts excellent stability over time and temperature. Other features include power-down and sleep modes, an embedded FIFO (first-in first-out) memory block, a temperature sensor, and a self-test function.

Leveraging the same micromachining technology process that ST has successfully applied to more than 1.6 billion motion sensors already sold, ST’s LIS3DSH three-axis linear accelerometer with embedded finite-state machines will start mass production in Q1 2012-
www.st.com/mems.

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