公开(公告)号：US11852528B2

公开(公告)日：2023-12-26

申请号：US17102522

申请日：2020-11-24

Applicant: STMicroelectronics (Grenoble 2) SAS

Inventor： Mickael Guene ,  Salim Bouchene ,  Cedric Grospellier ,  Jean-Jacques Rouger ,  Pascal Mellot

IPC: G01J1/44

CPC classification number: G01J1/44

Abstract: The present disclosure relates to a device and method for measuring a flicker frequency of a light source configured to implement at least one phase lock loop.

公开(公告)号：US20230408867A1

公开(公告)日：2023-12-21

申请号：US18209605

申请日：2023-06-14

Applicant: STMicroelectronics (Grenoble 2) SAS ,  STMicroelectronics S.r.l.

Inventor： Jonathan STECKEL ,  Giovanni CONTI ,  Gaetano L'EPISCOPO ,  Mario Antonio ALEO

IPC: G02F1/1335 ,  H01L31/173 ,  G02F1/13357 ,  H05B45/325 ,  H05B47/105 ,  H05B45/22

CPC classification number: G02F1/133612 ,  H01L31/173 ,  G02F1/133603 ,  H05B45/325 ,  H05B47/105 ,  H05B45/22 ,  G02F2203/055

Abstract: An optoelectronic device includes a backlight panel illuminating a display panel. The backlight panel includes an array of light emitting pixels, with each light emitting pixel including at least one subpixel formed by one or more light emitting diodes positioned on a substrate. At least one photodetector is positioned on the substrate and arranged to detect an amount of reflected light emitted by said subpixel and reflected by the display panel.

公开(公告)号：US20230400904A1

公开(公告)日：2023-12-14

申请号：US17806813

申请日：2022-06-14

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

Inventor： Arnaud Deleule ,  Kalyan-Kumar Vadlamudi-Reddy ,  Darin K Winterton ,  Jihong Chen ,  Olivier Lemarchand

IPC: G06F1/3231 ,  G06F1/3234 ,  G01S13/08

CPC classification number: G06F1/3231 ,  G06F1/3265 ,  G01S13/08

Abstract: A method for operating an electronic device includes while a display is in low power mode, detecting based on data collected by a time of flight (ToF) sensor, a movable object within a field of view of the electronic device; in response to the detecting initiating a period of detection having a plurality of frames, the period of detection being a time period over which a distance value indicative of a distance between the movable object and the display is detected; for each of the plurality of frames, changing the distance value to reflect whether the movable object is moving near or further from the electronic device; detecting that the distance value after the period of detection is less than a threshold distance value indicative of the movable object approaching the display; if the distance value is less than the threshold distance value, waking up the display.

公开(公告)号：US11808624B2

公开(公告)日：2023-11-07

申请号：US17500432

申请日：2021-10-13

Applicant: STMicroelectronics (Grenoble 2) SAS

Inventor： Nicolas Moeneclaey

IPC: G01J1/42 ,  G01J1/44

CPC classification number: G01J1/4204 ,  G01J1/44 ,  G01J2001/446

Abstract: In an embodiment a method for measuring ambient light includes successively synchronizing optical signal acquisition phases with extinction phases of a disruptive light source, wherein the disruptive light source periodically provides illumination phases and the extinction phases, accumulating, in each acquisition phase, photo-generated charges by at least one photosensitive pixel comprising a pinned photodiode, transferring the accumulated photo-generated charges to an integration node and integrating, for each pixel, the transferred charges on the integration node during a series of the successive acquisition phases.

公开(公告)号：US20230344357A1

公开(公告)日：2023-10-26

申请号：US18342159

申请日：2023-06-27

Applicant: STMicroelectronics (Grenoble 2) SAS

Inventor： Jean Camiolo ,  Alexandre Pons

IPC: H02M1/08 ,  H02M3/335

CPC classification number: H02M3/33553 ,  H02M1/08

Abstract: The present disclosure relates to a voltage source device comprising: a voltage converter for generating a supply voltage at an output node of the voltage converter based on a feedback signal provided on a feedback line; at least one switch coupled between the output node of the voltage converter and an output terminal of the voltage source device; and at least one further switch configured to selectively couple the feedback line to: the output node of the voltage converter during a first regulation mode; and to the output terminal of the voltage source device during a second regulation mode.

公开(公告)号：US20230327621A1

公开(公告)日：2023-10-12

申请号：US18189665

申请日：2023-03-24

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

Inventor： Vratislav Michal

IPC: H03F3/45 ,  H03F1/02

CPC classification number: H03F3/45179 ,  H03F1/0205

Abstract: In an embodiment a device includes an input node configured to receive a first current, an output node configured to provide a second current determined by the first current, a first resistor having a first terminal connected to the input node and a second terminal coupled to a first node configured to receive a first supply voltage, a first MOS transistor having a source connected to the first node and a drain coupled to the output node of the device, a second resistor having a first terminal connected to a gate of the first MOS transistor, a biasing circuit configured to provide a biasing voltage on a second terminal of the second resistor and a first capacitor connected between the input node and the gate of the first MOS transistor.

公开(公告)号：US11764151B2

公开(公告)日：2023-09-19

申请号：US17580055

申请日：2022-01-20

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

Inventor： Samuel Boscher ,  Yann Rebours ,  Michel Cuenca

IPC: H01L23/528 ,  H01L23/50 ,  H01L23/522

CPC classification number: H01L23/528 ,  H01L23/50 ,  H01L23/5226

Abstract: An electronic chip includes a shared strip with first and second spaced apart portions extending along a direction of elongation and an intermediate connecting portion extending between the first and second portions. The second portion is connected to a pad that has a greater surface area than the second portion. The first portion is formed by a first plurality of metallic strips. Metallic strips of the first plurality of metallic strips that are adjacent and side by side are separated by a distance smaller than a width of those metallic strips. The second portion is formed by a second plurality of metallic strips. Metallic strips of the second plurality of metallic strips that are adjacent and side by side are separated by a distance smaller than a width of those metallic strips.

公开(公告)号：US11740416B2

公开(公告)日：2023-08-29

申请号：US17546314

申请日：2021-12-09

Applicant: STMicroelectronics (Grenoble 2) SAS

Inventor： Romain Coffy ,  Jean-Michel Riviere

IPC: G02B6/42

CPC classification number: G02B6/4239 ,  G02B6/4213 ,  G02B6/4274

Abstract: An optoelectronic element is located in a package. The package includes a first optical block and a second optical block that are attached to each other by a bonding layer. One of the first and second optical blocks is attached to lateral walls of the package by glue. The material of the bonding layer is configured to induce less stress to the first and second optical blocks than the glue.

公开(公告)号：US20230268928A1

公开(公告)日：2023-08-24

申请号：US18112056

申请日：2023-02-21

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

Inventor： Nicolas MOENECLAEY ,  Laurent VACCARIELLO

IPC: H03M1/38 ,  G01J1/44 ,  G01J1/42 ,  H01L27/144

CPC classification number: H03M1/38 ,  G01J1/44 ,  G01J1/4204 ,  H01L27/1446 ,  H01L27/1443 ,  G01J2001/448 ,  G01J2001/446

Abstract: An ambient light sensor includes pixels arranged in an array. Each pixel includes a doped insulated well of a first type, a pinned photodiode in the well, a doped region of a second type arranged in the well, a transfer gate coupling the photodiode to said region, and a first circuit applying a first or second potential to the well. A successive approximation analog-to-digital converter of the sensor has a node connected to the doped regions of the pixels, a switch applying a third potential to the node, a comparator coupled to the node, and a second circuit receiving an output of the comparator and controlling the first circuits to selectively apply the first and second potentials. A sensor control circuit controls the gates and the first switch.

公开(公告)号：US11703901B2

公开(公告)日：2023-07-18

申请号：US17737692

申请日：2022-05-05

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

Inventor： Jean Camiolo ,  Alexandre Pons

IPC: G05F1/575 ,  G01R19/165 ,  G05F3/18 ,  G06F1/26 ,  H03F3/45 ,  H03K3/0233 ,  G05F1/56

CPC classification number: G05F1/575 ,  G01R19/16528 ,  G05F1/56 ,  G05F3/185 ,  G06F1/266 ,  H03F3/45076 ,  H03K3/02337

Abstract: A first terminal receives a first DC voltage. A switch selectively couples the first terminal to a second terminal providing an output. A control circuit selectively actuates the switch in response to a comparison of the first DC voltage to a second DC voltage. A low-dropout (LDO) linear voltage regulator, connected between the first and third terminals, operates to provide the second DC voltage from the first DC voltage.