公开(公告)号：US12030381B2

公开(公告)日：2024-07-09

申请号：US17176068

申请日：2021-02-15

Applicant: STMicroelectronics (Grenoble 2) SAS

Inventor： Thomas Perotto

IPC: G01S17/931 ,  B60K31/00 ,  B60W30/14 ,  G01S17/06 ,  G01S17/58

CPC classification number: B60K31/0008 ,  B60W30/146 ,  G01S17/06 ,  G01S17/58 ,  G01S17/931 ,  B60W2300/365 ,  B60W2554/404 ,  B60W2554/804

Abstract: A measurement of the rotation speed of an object is made using a time-of-flight sensor configured to detect a passing of one or more of elements of the object through a given position. The time-of-flight sensor is further mounted on a one-person vehicle configured to protect the one-person vehicle against collisions through the making a time-of-flight measurement of a relative speed between the one-person vehicle and an obstacle.

公开(公告)号：US12056912B2

公开(公告)日：2024-08-06

申请号：US17512080

申请日：2021-10-27

Applicant: STMicroelectronics (Grenoble 2) SAS ,  STMicroelectronics (Shenzhen) R&D Co. Ltd.

Inventor： Etienne Bossart ,  Ji Nan Li ,  Thomas Perotto

IPC: G06K9/00 ,  G01S7/481 ,  G01S17/08 ,  G06V10/50 ,  G06V20/00

CPC classification number: G06V10/507 ,  G01S7/4816 ,  G01S17/08 ,  G06V20/00

Abstract: In an embodiment a method for detecting a presence of at least one object in a field of view of a time of flight sensor includes successively generating, by the time of flight sensor, histograms, each histogram comprising several classes associating a number of photons detected at a given acquisition period, adding several successively generated histograms so as to obtain a summed histogram and analyzing the summed histogram to detect the presence of at least one object in the field of view of the time of flight sensor.

公开(公告)号：US20220308229A1

公开(公告)日：2022-09-29

申请号：US17655118

申请日：2022-03-16

Applicant: STMICROELECTRONICS (BEIJING) R&D CO., LTD ,  STMicroelectronics (Grenoble 2) SAS ,  STMICROELECTRONICS LTD.

Inventor： Etienne Bossart ,  Ji Nan Li ,  Cedric Patrick Jean Claude Colombo ,  Thomas Perotto

IPC: G01S17/894 ,  G01S17/10 ,  G01S7/4863 ,  G01S7/48 ,  H01L31/107

Abstract: The present disclosure concerns a method of measuring the distance between a device and an object comprising the steps of determination of a first estimated distance based on the time of flight of first light pulses having a first period; determination of a second estimated distance based on the time of flight of second light pulses having a second period different from the first period; determination based on the interval between the first and second estimated distances of whether the device is in a wraparound area among wraparound areas; and if the device is in a wraparound area among wraparound areas, adding to the first estimated distance a compensation having its value depending on the wraparound area.

公开(公告)号：US20220138485A1

公开(公告)日：2022-05-05

申请号：US17512080

申请日：2021-10-27

Applicant: STMicroelectronics (Grenoble 2) SAS ,  STMicroelectronics (Shenzhen) R&D Co. Ltd.

Inventor： Etienne Bossart ,  Ji Nan Li ,  Thomas Perotto

IPC: G06K9/46 ,  G06K9/00 ,  G01S7/481 ,  G01S17/08

Abstract: In an embodiment a method for detecting a presence of at least one object in a field of view of a time of flight sensor includes successively generating, by the time of flight sensor, histograms, each histogram comprising several classes associating a number of photons detected at a given acquisition period, adding several successively generated histograms so as to obtain a summed histogram and analyzing the summed histogram to detect the presence of at least one object in the field of view of the time of flight sensor.