公开(公告)号：US20130175435A1

公开(公告)日：2013-07-11

申请号：US13736823

申请日：2013-01-08

Applicant: STMicroelectronics (Grenoble 2) SAS

Inventor： Marc Drader

IPC: G01C3/08

CPC classification number: G01C3/08 ,  G01S7/4861 ,  G01S7/497 ,  G01S17/10

Abstract: The disclosure relates to a method for detecting the presence of an object near a detection device, comprising: emitting pulses of an incident photon beam, detecting photodiodes which trigger avalanche after the reception by the photodiode of at least one photon of a reflected photon beam produced by a reflection of the incident beam on an object near the detection device, determining a distance between the photodiodes and an object in a detection area, as a function of the time between a transmit time of the incident beam and avalanche triggering times of the photodiodes, and correcting the distance determined as a function of a calibration measurement obtained in the absence of object in the detection area, to compensate for photon reflections on a transparent plate arranged between the photodiodes and the detection area.

Abstract translation: 本公开涉及一种用于检测在检测装置附近存在物体的方法，包括：发射入射光子束的脉冲，检测在由光电二极管接收产生反射光子束的至少一个光子之后触发雪崩的光电二极管 通过将入射光束反射在检测装置附近的物体上，根据入射光束的发射时间和光电二极管的雪崩触发时间之间的时间确定检测区域中的光电二极管与物体之间的距离 并且校正作为在检测区域中没有物体的情况下获得的校准测量的函数确定的距离，以补偿布置在光电二极管和检测区域之间的透明板上的光子反射。

公开(公告)号：US10416294B2

公开(公告)日：2019-09-17

申请号：US15169464

申请日：2016-05-31

Applicant: STMicroelectronics (Research & Development) Limited ,  STMicroelectronics (Grenoble 2) SAS

Inventor： Pascal Mellot ,  Stuart McLeod ,  Marc Drader

IPC: G01S7/48 ,  G01S7/486 ,  G01S17/10 ,  H01L27/144 ,  G01S17/36 ,  G01S7/491

Abstract: A ranging device includes an array of photon detection devices that receive an optical signal reflected by an object in an image scene and first and second logic devices to respectively combine the outputs of first and second pluralities of the photon detection devices. First and second counter circuits are respectively coupled an output of the first and second logic devices and generate first and second count values respectively by counting the photon detection events generated by the first and second pluralities of photon detection devices. A range estimation circuit estimates the range of the object by estimating the timing of one or more pulses of said optical signal based on the first and second count values.

公开(公告)号：US10094915B2

公开(公告)日：2018-10-09

申请号：US14927717

申请日：2015-10-30

Applicant: STMICROELECTRONICS (GRENOBLE 2) SAS

Inventor： Marc Drader ,  Pascal Mellot

IPC: G01S7/48 ,  G01S7/486 ,  G01S17/08 ,  G01S17/10 ,  G01S13/22

Abstract: A method is for estimating a distance to an object. The method may include determining, by a ranging device, a first range value based upon a time of flight of first optical pulses having a period of a first duration, and determining, by the ranging device, a second range value based upon a time of flight of second optical pulses having a period of a second duration different from the first duration. The method may include estimating the distance based upon the first and second range values.

公开(公告)号：US09476979B2

公开(公告)日：2016-10-25

申请号：US14554134

申请日：2014-11-26

Applicant: STMICROELECTRONICS (GRENOBLE 2) SAS

Inventor： Marc Drader ,  Jeremie Teyssier

IPC: G06M7/00 ,  G01S17/02 ,  G01S17/06 ,  G01S7/486 ,  G01S17/08 ,  G01S17/88 ,  G01S7/497 ,  G06F3/01 ,  G06F3/03

CPC classification number: G01S17/026 ,  G01S7/4866 ,  G01S7/497 ,  G01S17/06 ,  G01S17/08 ,  G01S17/88 ,  G01S2007/4975 ,  G06F3/017 ,  G06F3/0304

Abstract: A method is for evaluating a coverage factor of a photon emission cone of a time of flight sensor. The method may include the steps of assigning a reference curve to the sensory providing a photon flux intensity as a function of time of flight; and acquiring a time of flight and a corresponding flux intensity with the sensor. The method may also include reading the intensity provided by the reference curve for the acquired time of flight, and providing an indication of the coverage factor based on the ratio between the acquired intensity and the read intensity.

Abstract translation: 一种用于评估飞行时间传感器的光子发射锥的覆盖因子的方法。 该方法可以包括以下步骤：将参考曲线分配给提供作为飞行时间的函数的光子通量强度的感官; 并用传感器获取飞行时间和相应的磁通强度。 该方法还可以包括读取由参考曲线提供的获取的飞行时间的强度，并且基于所获取的强度与读取强度之间的比率来提供覆盖因子的指示。

公开(公告)号：US08963069B2

公开(公告)日：2015-02-24

申请号：US13719070

申请日：2012-12-18

Applicant: STMicroelectronics (Grenoble 2) SAS

Inventor： Marc Drader ,  Pascal Mellot

IPC: H01L31/00 ,  G01J1/02 ,  G01S17/02 ,  G01S17/10 ,  G01S17/89 ,  G01S7/481 ,  G01S7/484 ,  G01S7/486 ,  G01S7/489

CPC classification number: G01J1/02 ,  G01S7/4814 ,  G01S7/4816 ,  G01S7/484 ,  G01S7/486 ,  G01S7/489 ,  G01S17/026 ,  G01S17/107 ,  G01S17/89

Abstract: The disclosure relates to a method for detecting the presence of an object near a detection device, comprising: reverse biasing single photon avalanche photodiodes, at a bias voltage greater than a breakdown voltage of a PN junction of each photodiode, emitting pulses of an incident photon beam, detecting photodiodes which avalanche trigger after the reception by the photodiode of at least one photon of a reflected photon beam produced by a reflection of the incident beam on an object near the detection device, determining the object presence as a function of the existence of at least one avalanche triggering in one of the photodiodes, and selecting a number of photodiodes to be reverse biased in relation to the detection device, as a function of a load of a circuit for generating the bias voltage.

Abstract translation: 本公开涉及一种用于检测在检测装置附近存在物体的方法，包括：以大于每个光电二极管的PN结的击穿电压的偏置电压反向偏置单光子雪崩光电二极管，发射入射光子的脉冲 光束，检测光电二极管，其在由光电二极管接收由反射光子束产生的反射光子束所产生的入射光束在靠近检测装置的物体上触发，确定作为存在的函数的物体存在 在所述光电二极管之一中触发至少一个雪崩，并且根据用于产生所述偏置电压的电路的负载来选择要相对于所述检测装置反向偏置的多个光电二极管。

公开(公告)号：US20140231633A1

公开(公告)日：2014-08-21

申请号：US14181019

申请日：2014-02-14

Applicant: STMicroelectronics (Grenoble 2) SAS ,  STMicroelectronics (Research & Development) Limited

Inventor： Pierre-Jean Parodi-Keravec ,  Marc Drader

IPC: G01S17/06

CPC classification number: G01S17/06 ,  G01V8/12 ,  G01V8/14

Abstract: A device including a photon emitter, a photon receiver, and a screen opaque to photons following a direct path from the outside of the device to the photon receiver.

Abstract translation: 包括光子发射器，光子接收器和对光子不透明的屏幕的器件，其遵循从器件的外部到光子接收器的直接路径。

公开(公告)号：US20150145768A1

公开(公告)日：2015-05-28

申请号：US14553216

申请日：2014-11-25

Applicant: STMicroelectronics SA

Inventor： Marc Drader ,  Jérémie Teyssier ,  Olivier Pothier

IPC: G06F3/01 ,  G01B11/14 ,  G06F3/03 ,  G01C9/06

CPC classification number: G06F3/017 ,  G01B11/14 ,  G01C9/06 ,  G01C2009/066 ,  G01S17/08 ,  G01S17/875 ,  G06F3/0325 ,  G06F3/0421

Abstract: A method for controlling an apparatus, includes steps of: determining distance measurements of an object in a first direction, using distance sensors defining between them a second direction different from the first direction, assessing a first inclination of the object in relation to a second direction based on the distance measurements, and determining a first command of the apparatus according to the inclination assessment.

Abstract translation: 一种用于控制装置的方法，包括以下步骤：使用在它们之间限定与第一方向不同的第二方向的距离传感器来确定物体在第一方向上的距离测量，评估物体相对于第二方向的第一倾斜度 基于距离测量，以及根据倾斜评估确定装置的第一命令。