公开(公告)号：US20180246215A1

公开(公告)日：2018-08-30

申请号：US15444801

申请日：2017-02-28

Applicant: STMicroelectronics, Inc.

Inventor： Xiaoyong Yang ,  Cheng Peng ,  Jean-Marc Tessier

IPC: G01S17/93 ,  B64C39/02 ,  G05D1/00 ,  G05D1/10 ,  B64D31/06 ,  G01S17/87 ,  G01S17/10

CPC classification number: G01S17/933 ,  B64C39/024 ,  B64C2201/027 ,  B64C2201/123 ,  B64C2201/141 ,  B64D47/00 ,  G01S17/10 ,  G01S17/87 ,  G05D1/101

Abstract: The present disclosure is directed to an obstacle awareness device for vehicle systems. A threshold distance is set that identifies the range at which an obstruction interferes with fluid dynamics around and through at least one propulsion motor. One or more ranging sensors on the vehicle system detect relative position information of the obstruction when it is within the threshold distance. The relative position information is communicated to a controller, which adjusts a motor control signal to compensate for the obstruction interfering with the fluid dynamics around the at least one propulsion motor. The threshold distance may be defined by a three dimensional shape that encapsulated the vehicle system 100, and the three dimensional shape may change in shape or size with movement of the vehicle system.

公开(公告)号：US20170351336A1

公开(公告)日：2017-12-07

申请号：US15616602

申请日：2017-06-07

Applicant: STMicroelectronics, Inc.

Inventor： Xiaoyong Yang ,  Darin K. Winterton

IPC: G06F3/01 ,  G06F3/041 ,  H04N5/232 ,  G06F3/03 ,  G06F3/0488 ,  H04N5/225 ,  H04N5/247 ,  H04W88/02

CPC classification number: G06F3/017 ,  G06F3/041 ,  G06F3/0416 ,  G06F2203/04108 ,  H04N5/232 ,  H04N5/23212 ,  H04N5/23216 ,  H04W88/02

Abstract: A device includes a time-of-flight sensor configured to transmit an optical pulse signal and to receive a return optical pulse signal corresponding to a portion of the transmitted optical pulse signal that has reflected off an object within a field of view of the time-of-flight sensor. The time-of-flight sensor generates a range estimation signal including a distance to the object and a signal amplitude indicating an amplitude of the return optical pulse signal. A controller is coupled to the time of flight sensor and is configured to process the range estimation signal over time to detect an input gesture based upon the signal amplitude and estimated distance.

公开(公告)号：US12226909B2

公开(公告)日：2025-02-18

申请号：US17884492

申请日：2022-08-09

Applicant: STMICROELECTRONICS, INC.

Inventor： Cheng Peng ,  Xiaoyong Yang

IPC: B25J19/02 ,  B25J9/16

Abstract: A robotic device including one or more proximity sensing systems coupled to various portions of a robot body. The proximity sensing systems detect a distance of an object about the robot body and the robotic device reacts based on the detected distance. The proximity sensing systems obtain a three-dimensional (3D) profile of the object to determine a category of the object. The distance of the object is detected multiple times in a sequence to determine a movement path of the object.

公开(公告)号：US11727719B2

公开(公告)日：2023-08-15

申请号：US17006594

申请日：2020-08-28

Applicant: STMICROELECTRONICS, INC.

Inventor： Xiaoyong Yang ,  Kalyan-Kumar Vadlamudi-Reddy

IPC: G06V40/16 ,  G06F18/25 ,  G06F18/214 ,  G01B7/30 ,  G01C19/00 ,  G01S17/08 ,  G01S17/894 ,  G01B11/22 ,  G01P15/18

CPC classification number: G06V40/166 ,  G01B7/30 ,  G01B11/22 ,  G01C19/00 ,  G01P15/18 ,  G01S17/08 ,  G01S17/894 ,  G06F18/214 ,  G06F18/25 ,  G06V40/171

Abstract: 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.

公开(公告)号：US11573303B2

公开(公告)日：2023-02-07

申请号：US16719004

申请日：2019-12-18

Applicant: STMicroelectronics, Inc.

Inventor： Cheng Peng ,  Xiaoyong Yang

IPC: G01S7/00 ,  G01S7/4865 ,  G01M99/00 ,  G01S17/58

Abstract: Disclosed herein is a system for detecting rotational speed and early failures of an electronic device. The system includes a rotating disk affixed to a rotating shaft of the electronic device. The rotating disk has projections extending from its periphery. A time of flight ranging system determines distance to the projections extending from the rotating disk. Processing circuitry determines a rotational speed of the rotating shaft from the determined distances to the projections extending from the rotating disk, and detects whether the electronic device is undergoing an early failure from the determined distances to the projections extending from the rotating disk. Rotational speed is determined from the time between successive peaks in the determined distances, and early failures (for example, due to wobble of the shaft) are determined where the peaks vary unexpectedly in magnitude.

公开(公告)号：US10922395B2

公开(公告)日：2021-02-16

申请号：US16240213

申请日：2019-01-04

Applicant: STMICROELECTRONICS, INC.

Inventor： Frederic Morestin ,  Xiaoyong Yang

IPC: G06F21/32 ,  G06K9/00 ,  G01S17/08 ,  G06T7/521 ,  G01S7/4865 ,  G06K9/20 ,  G01S17/89 ,  G01S17/04

Abstract: The present disclosure is directed to a system and method of authenticating a user's face with a ranging sensor. The ranging sensor includes a time of flight sensor and a reflectance sensor. The ranging sensor transmits a signal that is reflected off of a user and received back at the ranging sensor. The received signal can be used to determine distance between the user and the sensor, and the reflectance value of the user. With the distance or the reflectivity, a processor can activate a facial recognition process in response to the distance and the reflectivity. A device incorporating the ranging sensor according to the present disclosure may reduce the overall power consumed during the facial authentication process.

公开(公告)号：US20180149748A1

公开(公告)日：2018-05-31

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: G01S17/08 ,  G06K9/00 ,  G06F21/32 ,  G06F21/62

CPC classification number: G06F21/6218 ,  G01S7/484 ,  G01S7/4861 ,  G01S7/4863 ,  G01S7/4865 ,  G01S7/497 ,  G01S17/10 ,  G01S17/88 ,  G06F21/32 ,  G06K9/00201 ,  G06K9/00255 ,  G06K9/00268 ,  G06K9/00597

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：US20170366737A1

公开(公告)日：2017-12-21

申请号：US15624368

申请日：2017-06-15

Applicant: STMicroelectronics, Inc.

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

IPC: H04N5/232 ,  G01S17/02 ,  G01S7/486 ,  G01S17/10 ,  G06T7/521

CPC classification number: H04N5/23212 ,  G01S7/4863 ,  G01S17/023 ,  G01S17/10

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：US11453123B2

公开(公告)日：2022-09-27

申请号：US16230302

申请日：2018-12-21

Applicant: STMicroelectronics, Inc.

Inventor： Cheng Peng ,  Xiaoyong Yang

IPC: G05B15/00 ,  B25J9/16 ,  B25J19/02

Abstract: A robotic device including one or more proximity sensing systems coupled to various portions of a robot body. The proximity sensing systems detect a distance of an object about the robot body and the robotic device reacts based on the detected distance. The proximity sensing systems obtain a three-dimensional (3D) profile of the object to determine a category of the object. The distance of the object is detected multiple times in a sequence to determine a movement path of the object.

公开(公告)号：US11303859B2

公开(公告)日：2022-04-12

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 ,  G03B21/20 ,  G03B21/53 ,  G01S7/4865 ,  G01S17/10 ,  G03B21/14

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.