STMicroelectronics: Making PCs easier to use, more energy efficient, and safer

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/ 2019-07-03 / News

  •  Protecting data, saving power: When the user leaves, the user exists to detect the immediate lock screen. And put the computer into low power mode

  •     When the user returns, the user presence detection immediately wakes up the system and logs into the user account without any touch operation

  •   ST's proprietary algorithms use time-of-flight (ToF) sensor data to detect user presence and, in conjunction with Intel® Context Sensing context-aware technology, receive an Innovation Award on the CES2019. At present, the products of major computer manufacturers have integrated the solution, and more vendors will adopt this feature in the future

STMicroelectronics, the world's leading semiconductor supplier for multiple electronic applications, has released a suite of user presence detection solutions.STMicroelectronics' FlightSenseTM time-of-flight (ToF) ranging sensor output data, in conjunction with Intel's Intel® Context Sensing environment-aware technology, provides users with a breakthrough set of computer data security solutions while reducing power consumption and improving User experience.

ST's FlightSense ToF sensor is hidden inside the border of the laptop screen and behind the glass cover for scanning to detect the presence of users in front of the computer. When the user leaves, the ToF sensor discovers that no user is present and then immediately locks the system and puts it into Windows® Modern-Stand-by power-saving mode, which increases system security and reduces power consumption. The ToF sensor enters a low-power autonomous mode, scans the scene, detects whether the user returns, and keeps the computer in a sleep state, saving power. When the user returns, the ToF sensor wakes up the computer and automatically initiates the face-to-face login function without waiting for a button or moving the mouse.

STM FlightSense™

The STMicroelectronics patent algorithm used in the system distinguishes between a stationary person sitting in front of a computer and an inanimate object (such as a chair) without the need to use a large amount of power and may infringe on the individual. A privacy webcam for video analysis.

Eric Aussedat, Executive Vice President and General Manager of Imaging Products at STMicroelectronics, said: "By taking advantage of ST's market-leading FlightSenseTM time-of-flight ranging technology, user presence detection applications can extend battery life Time, improve data security and computer usability."

 

About FlightSense Time-of-Flight Sensor

 

ST's ToF FlightSense technology completely overturns ranging and proximity sensing applications, providing accurate ranging data with low-cost miniature sensors. The distance sensor works by measuring the time it takes for a photon to travel back and forth between the sensor and the target object. Multiply the "time of flight" of the photon by the speed of light,The result is the exact distance from the sensor to the target object.

The traditional infrared (IR) ranging sensor relies on the intensity of the reflected signal and cannot directly measure the distance. Unlike ToF sensors, the measurement and accuracy of infrared sensors are affected by the reflectivity of the object. ST's ToF sensor combines precision ranging, small size and low power consumption.


Keywords: ST ToF
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