公开(公告)号：US20220308190A1

公开(公告)日：2022-09-29

申请号：US17704481

申请日：2022-03-25

Applicant: STMicroelectronics (Crolles 2) SAS

Inventor： Matteo Maria VIGNETTI ,  Pierre MALINGE

IPC: G01S7/4865

Abstract: An indirect time-of-flight (iTOF) includes a pixel with a photoconversion area, a readout circuit and at least two circuit sets. Each circuit set includes: a capacitive element connected to a first node of the circuit set; a controllable charge transfer device connected between a first electrode of the photoconversion area and the first node; and a first transistor having a gate connected to the first node, a source connected to the readout circuit and a drain configured to receive a bias potential. The capacitive element is configured to store a voltage in response to charges generated by the photoconversion area.

公开(公告)号：US20210105427A1

公开(公告)日：2021-04-08

申请号：US17063192

申请日：2020-10-05

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

Inventor： Raul Andres BIANCHI ,  Matteo Maria VIGNETTI ,  Bruce RAE

IPC: H04N5/3745 ,  H04N5/378

Abstract: The present disclosure relates to a device that includes a photodiode having a first terminal that is coupled by a resistor to a first rail configured to receive a high supply potential and a second terminal that is coupled by a switch to a second rail configured to receive a reference potential. A read circuit is configured to provide a pulse when the photodiode enters into avalanche, and a control circuit is configured to control an opening of the switch in response to a beginning of the pulse and to control a closing of the switch in response to an end of the pulse.