Stmicroelectronics Gmbh

Stmicroelectronics (Grenoble 2) Sas

Stmicroelectronics (Research & Development) Limited

Stmicroelectronics S.a.

Stmicroelectronics (Beijing) R&d Company Ltd.

Stmicroelectronics France

Kalyan-Kumar Vadlamudi-Reddy

Darin K Winterton

Olivier Pothier

Donald Baxter

Olivier Lemarchand

Andrew Hodgson

Gordon Lunn

Arnaud Deleule

John E Kvam

Pierre-Loic Felter

Xiaoyong Yang

Jihong Chen

The present disclosure is directed to a system and method of controlling a facial recognition process by validating preconditions with a ranging sensor. The ranging sensor transmits a ranging signal that is reflected off of a user's face and received back at the ranging sensor. The received ranging signal can be used to determine distance between the user's face and the mobile device or to determine the reflectivity of the user's face. Comparing the distance to a range of distances corresponding to normal operation of the device or normal reflectivities associated with human skin tones can reduce the number of false positive activations of the facial recognition process. Furthermore, a multiple zone ranging sensor can produce a face depth map that can be compared to a stored face depth map or can produce a reflectivity map that can be compared to a stored face reflectivity map to further increase power efficiency and device security.

Power and security adjustment for face identification with reflectivity detection by a ranging sensor

A method includes dividing a field of view into a plurality of zones and sampling the field of view to generate a photon count for each zone of the plurality of zones, identifying a focal sector of the field of view and analyzing each zone to select a final focal object from a first prospective focal object and a second prospective focal object.

Methods and devices to identify focal objects

A method for operating an electronic device includes while a display is in low power mode, detecting based on data collected by a time of flight (ToF) sensor, a movable object within a field of view of the electronic device; in response to the detecting initiating a period of detection having a plurality of frames, the period of detection being a time period over which a distance value indicative of a distance between the movable object and the display is detected; for each of the plurality of frames, changing the distance value to reflect whether the movable object is moving near or further from the electronic device; detecting that the distance value after the period of detection is less than a threshold distance value indicative of the movable object approaching the display; if the distance value is less than the threshold distance value, waking up the display.

Motion based device wake up

In accordance with embodiments, methods and systems for utilizing multiple threshold checkers are provided. A range sensor collects measurement data. The range sensor examines the measurement data based on multiple threshold checkers to determine satisfaction of a trigger condition. In response to the satisfaction of the trigger condition, the range sensor provides the measurement data to a host computing device of the range sensor.

Multiple threshold checkers for specific applications and FFT based breathing detection for presence

An electronic device includes a depth sensor and an inertial measurement unit. The electronic device detects a presence of the user of the electronic device by analyzing a combination of inertial sensor signals from the inertial measurement unit and depth sensor signals from the depth sensor.

System and method for detecting human presence based on depth sensing and inertial measurement

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San Jose, CA, United States of America

Kalyan-Kumar Vadlamudi-Reddy