公开(公告)号：US20170031007A1

公开(公告)日：2017-02-02

申请号：US14809384

申请日：2015-07-27

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

Inventor： Darin K. Winterton ,  Sam Lee

IPC: G01S7/486

CPC classification number: G01S7/4861 ,  G01S7/4802 ,  G01S17/08

Abstract: An electronic device includes a ranging light source and a reflected light detector. A logic circuit causes the ranging light source to emit ranging light at a target. Reflected light from the target is detected using the reflected light detector, with the reflected light being a portion of the ranging light that reflects from the target back toward the reflected light detector. An intensity of the reflected light is determined using the reflected light detector. A distance to the target is determined based upon time elapsed between activating the ranging light source and detecting the reflected ranging light. Reflectance of the target is calculated, based upon the intensity of the reflected light and the distance to the target.

Abstract translation: 电子装置包括测距光源和反射光检测器。 逻辑电路使得测距光源在目标上发射测光。 使用反射光检测器检测来自目标的反射光，其中反射光是从目标反射到反射光检测器的测距光的一部分。 使用反射光检测器确定反射光的强度。 基于激活测距光源和检测反射的测光灯之间的时间来确定到目标​​的距离。 基于反射光的强度和与目标的距离，计算目标的反射率。

公开(公告)号：US11528407B2

公开(公告)日：2022-12-13

申请号：US17122667

申请日：2020-12-15

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

Inventor： Darin K. Winterton ,  Donald Baxter ,  Andrew Hodgson ,  Gordon Lunn ,  Olivier Pothier ,  Kalyan-Kumar Vadlamudi-Reddy

IPC: H04N5/232

Abstract: 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.

公开(公告)号：US20210302563A1

公开(公告)日：2021-09-30

申请号：US17081319

申请日：2020-10-27

Applicant: STMicroelectronics (Grenoble 2) SAS ,  STMicroelectronics, Inc.

Inventor： Olivier Lemarchand ,  Pierre-Loic Felter ,  Darin K. Winterton ,  Kalyan-Kumar Vadlamudi-Reddy

IPC: G01S13/56 ,  G01S7/41

Abstract: 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.

公开(公告)号：US20210298637A1

公开(公告)日：2021-09-30

申请号：US16832515

申请日：2020-03-27

Applicant: STMicroelectronics (Grenoble 2) SAS ,  STMicroelectronics, Inc.

Inventor： Kalyan-Kumar Vadlamudi-Reddy ,  Darin K. Winterton ,  Pierre-Loic Felter ,  Olivier Lemarchand

IPC: A61B5/08 ,  G06F17/14

Abstract: 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.

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.