公开(公告)号：US20230288540A1

公开(公告)日：2023-09-14

申请号：US17653881

申请日：2022-03-08

Applicant: Allegro MicroSystems, LLC

Inventor： Sean Keuleyan ,  Andrew S. Huntington ,  Nanditha Dissanayake ,  Chao Yi ,  George Williams

IPC: G01S7/481 ,  G01S17/10 ,  G01S7/484 ,  G01S7/4865

CPC classification number: G01S7/4816 ,  G01S7/4814 ,  G01S17/10 ,  G01S7/484 ,  G01S7/4865

Abstract: Methods and apparatus for a sensor having a photodetector array having photodetectors comprising a colloidal quantum dot (CQD) structure formed on an integrated circuit. The sensor may comprise a LIDAR time of flight sensor.

公开(公告)号：US20230375678A1

公开(公告)日：2023-11-23

申请号：US17663896

申请日：2022-05-18

Applicant: Allegro MicroSystems, LLC

Inventor： Bryan Cadugan ,  Adam Lee ,  George Williams

IPC: G01S7/4863 ,  G01S7/4865 ,  G01S7/487 ,  G01S17/32

CPC classification number: G01S7/4863 ,  G01S7/4865 ,  G01S7/4873 ,  G01S17/32

Abstract: Methods and apparatus for processing signal return of photons reflected by a target illuminated by laser energy using at least one threshold. Parameters of pulses in the signal return exceeding one or more thresholds can be stored in memory. Example parameters include time of flight (ToF) and a time over threshold (ToT).

公开(公告)号：US20230333216A1

公开(公告)日：2023-10-19

申请号：US17659033

申请日：2022-04-13

Applicant: Allegro MicroSystems, LLC

Inventor： Bryan Cadugan ,  Andrew S. Huntington ,  Sapna S. Mukherjee ,  Adam Lee ,  George Williams ,  Richard Migliaccio ,  William P. Taylor

IPC: G01S7/4863 ,  G01S17/894 ,  G02B5/02 ,  G01S7/481 ,  G02B1/10 ,  G01S7/4865

CPC classification number: G01S7/4863 ,  G01S7/4816 ,  G01S7/4865 ,  G01S17/894 ,  G02B1/10 ,  G02B5/0273

Abstract: Methods and apparatus for photodetection having parallax compensation for near and far object signal return. In embodiment, a photoreceiver comprising a at least one light-sensitive pixel to transduce light to electrical signals has at least a first one of the pixels including a first subpixel region having a first light response characteristic and a second subpixel region having a second light response characteristic, wherein the first and second light characteristics are configured to correspond to variations in intensity of reflected light from objects at different distances when the portion of the reflected light reaching the first one of the pixels imaged onto the first and second subpixel regions.

公开(公告)号：US20230333213A1

公开(公告)日：2023-10-19

申请号：US17659035

申请日：2022-04-13

Applicant: Allegro MicroSystems, LLC

Inventor： Bryan Cadugan ,  Andrew S. Huntington ,  Sapna S. Mukherjee ,  Adam Lee ,  George Williams ,  Richard Migliaccio ,  William P. Taylor

IPC: G01S7/481 ,  G02B27/00 ,  G01S17/10 ,  G01S7/4863

CPC classification number: G01S7/4816 ,  G02B27/0025 ,  G01S17/10 ,  G01S7/4863 ,  G02B5/02

Abstract: Methods and apparatus for a system including an optic to receive light from near objects and far objects and a photoreceiver optically coupled to the optic, the photoreceiver including a photodetector array. A light scattering structure is positioned a distance from the photodetector array to compensate for parallax effects for the received energy from the near objects and the far objects. The light scattering structure is configured to scatter light onto pixels of the photodetector array.