公开(公告)号：US20130314121A1

公开(公告)日：2013-11-28

申请号：US13901378

申请日：2013-05-23

Applicant: STMicroelectronics (Grenoble 2) SAS

Inventor： Stephane Mougin ,  Cedric Tubert

IPC: H01L23/00

CPC classification number: H01L23/576 ,  G06F21/75 ,  G06F21/86 ,  H01L2224/16225 ,  H01L2924/0002 ,  H01L2924/15311 ,  H01L2924/00

Abstract: A method for detecting an attack, such as by laser, on an electronic microcircuit from a backside of a substrate includes forming the microcircuit on the semiconductor substrate, the microcircuit comprising a circuit to be protected against attacks, forming photodiodes between components of the circuit to be protected, forming a circuit for comparing a signal supplied by each photodiode with a threshold value, and forming a circuit for activating a detection signal when a signal at output of one of the photodiodes crosses the threshold value.

Abstract translation: 用于通过激光检测来自衬底背面的电子微电路的攻击的方法包括在半导体衬底上形成微电路，该微电路包括要被保护的电路以防止入侵，从而在电路的组件之间形成光电二极管 形成用于将由每个光电二极管提供的信号与阈值进行比较的电路，并且当一个光电二极管的输出端的信号与阈值相交时，形成用于激活检测信号的电路。

公开(公告)号：US12123982B2

公开(公告)日：2024-10-22

申请号：US17177608

申请日：2021-02-17

Applicant: STMicroelectronics (Grenoble 2) SAS

Inventor： Cedric Tubert

IPC: G01S7/48 ,  G01S7/4865 ,  G01S7/497 ,  G01S17/36

CPC classification number: G01S7/497 ,  G01S7/4865 ,  G01S17/36

Abstract: An embodiment device for synchronizing the emission and the reception of a light signal for a time-of-flight sensor comprises a power-control circuit configured to generate and transmit a power signal based on a control signal for controlling the sensor, the power signal being configured to supply power to an array of pixels of the sensor, a production module for producing a synchronization signal, which module is configured to produce the synchronization signal based on the control signal, and a switch configured to supply power to a light source of a device for emitting the light signal, the production module being further configured to transmit the synchronization signal to the switch such that the time taken to produce and transmit the synchronization signal and the time taken to generate and transmit the power signal are identical.

公开(公告)号：US20240331112A1

公开(公告)日：2024-10-03

申请号：US18733068

申请日：2024-06-04

Applicant: STMicroelectronics (Grenoble 2) SAS

Inventor： Cedric Tubert ,  Jeremie Teyssier ,  Gregory Roffet ,  Stephane Drouard

IPC: G06T5/70 ,  G06T5/20 ,  H04N5/21 ,  H04N25/60

CPC classification number: G06T5/70 ,  G06T5/20 ,  H04N5/21 ,  H04N25/60 ,  G06T2207/20012 ,  G06T2207/20192

Abstract: A method includes: receiving data signals from a plurality of pixels of an array of pixels; generating a plurality of signal-to-noise ratios by determining signal-to-noise ratios for each respective pixel of the plurality of pixels on the basis of the data signals received from the respective pixel; and filtering the data signals received from each pixel of the plurality of pixels by using an adaptive filter configured on the basis of the plurality of the signal-to-noise ratios to generate filtered data signals.

公开(公告)号：US20240202945A1

公开(公告)日：2024-06-20

申请号：US18531192

申请日：2023-12-06

Applicant: STMicroelectronics (Grenoble 2) SAS

Inventor： Jeremie Teyssier ,  Cedric Tubert ,  Thibault Augey ,  Thomas Bouchet

IPC: G06T7/50 ,  G06V10/74 ,  G06V10/764

CPC classification number: G06T7/50 ,  G06V10/761 ,  G06V10/764

Abstract: A method comprises, for each pixel of a depth map, acquiring samples and calculating a distance, and defining a window of N*N pixels with this image pixel at the center, N being an odd integer equal to or greater than 3, and, for each window, classifying the pixels of the window into groups, based on a threshold and distances calculated, calculating for each group, a number of pixels in the group, a confidence factor of the group equal to a sum of the confidence factors of the pixels each determined from the samples acquired for the pixel, and scanning the window from the central pixel by comparing, for each pixel, the confidence factor of the group of the pixel with a threshold and the number of pixels of the group of the pixel with another threshold, and determining whether the central pixel is retained, replaced or discarded.

公开(公告)号：US20170111049A1

公开(公告)日：2017-04-20

申请号：US14882868

申请日：2015-10-14

Applicant: STMicroelectronics (Grenoble 2) SAS

Inventor： Cedric Tubert

IPC: H03K23/54

CPC classification number: H03K23/542

Abstract: A counter circuit includes a first Johnson counter circuit and a second Johnson counter circuit coupled in cascade. Each Johnson counter circuit includes a clock input, a data input, a first clock data output, a second clock data output and a feedback from the second clock data input to first data input. The clock input of the first Johnson counter circuit is configured to receive an input clock signal. The clock input of the second Johnson counter circuit is connected to the second clock data output of the first Johnson counter circuit. A ripple counter circuit has a clock input and additional clock data outputs. The clock input of the ripple counter circuit is connected to the second clock data output of the preceding Johnson counter circuit.

公开(公告)号：US09117833B2

公开(公告)日：2015-08-25

申请号：US13901378

申请日：2013-05-23

Applicant: STMicroelectronics (Grenoble 2) SAS

Inventor： Stephane Mougin ,  Cedric Tubert

IPC: H01L31/062 ,  H01L31/113 ,  H01L23/00 ,  G06F21/75 ,  G06F21/86

CPC classification number: H01L23/576 ,  G06F21/75 ,  G06F21/86 ,  H01L2224/16225 ,  H01L2924/0002 ,  H01L2924/15311 ,  H01L2924/00

Abstract: A method for detecting an attack, such as by laser, on an electronic microcircuit from a backside of a substrate includes forming the microcircuit on the semiconductor substrate, the microcircuit comprising a circuit to be protected against attacks, forming photodiodes between components of the circuit to be protected, forming a circuit for comparing a signal supplied by each photodiode with a threshold value, and forming a circuit for activating a detection signal when a signal at output of one of the photodiodes crosses the threshold value.

Abstract translation: 用于通过激光检测来自衬底背面的电子微电路的攻击的方法包括在半导体衬底上形成微电路，该微电路包括要被保护的电路以防止入侵，从而在电路的组件之间形成光电二极管 形成用于将由每个光电二极管提供的信号与阈值进行比较的电路，并且当一个光电二极管的输出端的信号与阈值相交时，形成用于激活检测信号的电路。

公开(公告)号：US20140103197A1

公开(公告)日：2014-04-17

申请号：US14045516

申请日：2013-10-03

Applicant: STMicroelectronics (Grenoble 2) SAS

Inventor： Cedric Tubert

IPC: H04N5/378

CPC classification number: H04N5/378 ,  H04N5/355 ,  H04N5/35581 ,  H04N5/374

Abstract: A method for reading a pixel, including at least two integration periods, at least one of said periods including at least one integration sub-period, wherein an output value of the pixel is determined by taking into account the amounts of photogenerated charges contained in the pixel at the end of each of said periods and the amount of photogenerated charges stored in a photodiode of the pixel beyond a threshold during said at least one sub-period.

Abstract translation: 一种用于读取包括至少两个积分周期的像素的至少一个所述周期的方法，所述至少一个所述周期包括至少一个积分子周期，其中通过考虑包含在所述像素中的光生电荷的量来确定像素的输出值 在所述至少一个子周期期间，每个所述周期结束时的像素和存储在像素的光电二极管中的光生电荷的量超过阈值。

公开(公告)号：US20220368847A1

公开(公告)日：2022-11-17

申请号：US17660084

申请日：2022-04-21

Applicant: STMicroelectronics (Grenoble 2) SAS

Inventor： Alexandre Mas ,  Abdessamed Mekki ,  Cedric Tubert

IPC: H04N5/378 ,  H03M1/46 ,  H03M1/12

Abstract: The present disclosure relates to a read-out circuit comprising N inputs configured to be connected to N respective outputs of a pixel array of an image sensor, with N being an integer strictly greater than 1; and N analog-to-digital converters organized in K groups, with K being an integer strictly greater than 1 and strictly less than N, and each having a first input coupled to a respective one of the N inputs and a second input. In each group, the second inputs of the analog-to-digital converters of the group are connected together, electrically decoupled from the second inputs of the analog-to-digital converters of the other groups, and configured to receive a first reference signal that is identical for all the analog-to-digital converters of the group.

公开(公告)号：US20220276356A1

公开(公告)日：2022-09-01

申请号：US17652177

申请日：2022-02-23

Applicant: STMicroelectronics (Grenoble 2) SAS ,  STMicroelectronics (Crolles 2) SAS

Inventor： Cedric Tubert ,  Pierre Malinge ,  Matteo Maria Vignetti

IPC: G01S7/4865 ,  G01S7/4861

Abstract: The present description concerns a sensor and method. Each pixel of the sensor comprises assemblies each including a memory area and a transfer device coupling the memory area to a photoconversion area, and a device for resetting the memory areas. The sensor includes a first circuit controlling the transfer devices and a second circuit controlling the reset devices. During each integration phase, the second circuit orders the end of a phase of reset of the memory areas of first pixels at the beginning of the integration phase and the end of a phase of reset of the memory areas of second pixels at a time subsequent to the beginning of the integration phase.

公开(公告)号：US20220137220A1

公开(公告)日：2022-05-05

申请号：US17481960

申请日：2021-09-22

Applicant: STMicroelectronics (Grenoble 2) SAS

Inventor： Cedric Tubert

IPC: G01S17/89 ,  G01S7/4865

Abstract: In an embodiment a method for acquiring a depth map by indirect time of flight in a network of photosensitive pixels segmented into groups of pixels includes performing at least one capture during which the pixels of the network are controlled by a demodulation signal and introducing phase shifts into the demodulation signal at different values distributed in each group of pixels.