公开(公告)号：US11073602B2

公开(公告)日：2021-07-27

申请号：US15624346

申请日：2017-06-15

Applicant: STMicroelectronics, Inc.

Inventor： Xiaoyong Yang ,  Rui Xiao

IPC: G01C3/08 ,  G01S7/481 ,  G01S17/89 ,  G01S17/10 ,  G01S7/48 ,  G07C9/00 ,  G01S7/4863 ,  G07C9/25

Abstract: A user identification based control system includes a time of flight ranging sensor configured to sense a distance to a person, where the time of flight ranging sensor is positioned so the sensed distance is a function of a height of the person. Processing circuitry is coupled to the time of flight ranging sensor and configured to identify the person based upon sensed distance and to generate control signals to control peripheral components based upon the identity of the person. The time of flight ranging sensor may also be used to sense speed of the person for identification purposes. In general, the time of flight ranging sensor is positioned a known height over a surface on which the person is present, such as in the doorway or on a ceiling of a room.

公开(公告)号：US10594920B2

公开(公告)日：2020-03-17

申请号：US15624368

申请日：2017-06-15

Applicant: STMicroelectronics, Inc.

Inventor： Xiaoyong Yang ,  Darin K. Winterton ,  Arnaud Deleule

IPC: G01S17/48 ,  H04N5/232 ,  G01S17/10 ,  G01S7/4863 ,  G01S17/02

Abstract: A device includes a time-of-flight ranging sensor configured to transmit optical pulse signals and to receive return optical pulse signals. The time-of-flight ranging sensor processes the return optical pulse signals to sense distances to a plurality of objects and to generate a confidence value indicating whether one of the plurality of objects has a highly reflective surface. The time-of-flight sensor generates a range estimation signal including a plurality of sensed distances and the confidence value. The image capture device includes autofocusing circuitry coupled to the time-of-flight sensor to receive the range estimation signal and configured to control focusing based upon the sensed distances responsive to the confidence value indicating none of the plurality of objects has a highly reflective surface. The autofocusing circuitry controls focusing independent of the sensed distances responsive to the confidence value indicating one of the objects has a highly reflective surface.

公开(公告)号：US10275610B2

公开(公告)日：2019-04-30

申请号：US15475908

申请日：2017-03-31

Applicant: STMicroelectronics, Inc. ,  STMicroelectronics (Research & Development) Limited

Inventor： Xiaoyong Yang ,  Riu Xiao ,  Duncan Hall

IPC: G06K9/00 ,  G06F21/32 ,  G06F21/62 ,  G01S17/88 ,  G01S17/10 ,  G01S7/484 ,  G01S7/486 ,  G01S7/497

Abstract: An electronic device includes a time-of-flight sensor configured to sense a distance between the electronic device and at least one object proximate the electronic device. Processing circuitry is coupled to the time-of-flight sensor and controls access to the electronic device based on the sensed distance. The electronic device may include a digital camera that the processing circuitry controls to perform facial or iris recognition utilizing the sensed distance from the time-of-flight sensor.

公开(公告)号：US20190034609A1

公开(公告)日：2019-01-31

申请号：US16050628

申请日：2018-07-31

Applicant: STMicroelectronics, Inc.

Inventor： Xiaoyong Yang ,  Sankalp Dayal

IPC: G06F21/32 ,  G10L17/00 ,  G01P15/16 ,  G01C19/58

Abstract: A method includes sensing through time-of-flight measurements a distance of an object from an electronic device, sensing motion of the electronic device, sensing acoustic signals received by the electronic device, and detecting the presence of a human proximate the electronic device based on the sensed distance, motion and acoustic signals. Access to the electronic device is controlled based on whether a human is detected as being present.

公开(公告)号：US20180357470A1

公开(公告)日：2018-12-13

申请号：US15617866

申请日：2017-06-08

Applicant: STMicroelectronics, Inc.

Inventor： Xiaoyong Yang ,  Rui Xiao

IPC: G06K9/00 ,  H04L29/06 ,  H04W12/06 ,  G06F3/16 ,  G06T7/521

CPC classification number: G06K9/00255 ,  G06F3/165 ,  G06K9/00899 ,  G06T7/521 ,  H04L63/0861 ,  H04W12/06

Abstract: The present disclosure is directed to a system and method of scanning an ear of a user to identify the user. The system includes a ranging sensor that detects the distance between the user and the ear detection system at one or more points and transmits that as ranging data. The ranging data is used to generate a depth model of the user's ear, from which an ear profile can be generated and compared to stored ear profiles to identify and authenticate the user. Once authenticated, the system can then enter a different operating mode based on the authentication.

公开(公告)号：US20180091784A1

公开(公告)日：2018-03-29

申请号：US15280171

申请日：2016-09-29

Applicant: STMicroelectronics (Research & Development) Limited ,  STMicroelectronics, Inc.

Inventor： Neale Dutton ,  Xiaoyong Yang ,  Kevin Channon

IPC: H04N9/31 ,  G03B21/14 ,  G01S17/10 ,  G01S7/486

CPC classification number: H04N9/3155 ,  G01S7/4865 ,  G01S17/10 ,  G03B21/142 ,  G03B21/2053 ,  G03B21/53 ,  H04N9/3102 ,  H04N9/3129 ,  H04N9/315 ,  H04N9/3161 ,  H04N9/317 ,  H04N9/3185 ,  H04N9/3194

Abstract: An image projection device, such as a pico projector or LCD projector, includes image projection circuitry configured to generate a light beam having a power. The image projection circuitry projects the light beam onto and focuses the light beam on a projection surface located an imaging distance from the image projection circuitry. A time-of-flight sensor is configured to sense the imaging distance between the image projection circuitry and the projection surface and to generate an imaging distance signal indicating the sensed imaging distance. Control circuitry is coupled to the image projection circuitry and to the time-of-flight sensor and is configured to adjust the power and the focus of the light beam based upon the imaging distance signal.