公开(公告)号：US20220091239A1

公开(公告)日：2022-03-24

申请号：US17030733

申请日：2020-09-24

Applicant: NXP B.V.

Inventor： Muhammed Bolatkale ,  Dongjin Son ,  Maxim Kulesh

IPC: G01S7/4863 ,  G04F10/00 ,  G01S17/18

Abstract: Exemplary aspects of the present disclosure involve a SPAD receiver having circuitry for photon detection and having a plurality TDCs (time-to-digital converters) to detect multiple photons. Such circuitry may be set to accumulate photon counts over relatively coarse time ranges. In such accumulation of photons in relatively coarse time ranges, photon counts may be binned for each time range. Possible targets may then be identified by examination of the bins. Upon identification of the possible targets, a plurality of TDCs may be used over a more refined time ranges such as the time ranges corresponding to the identified possible target or targets.

公开(公告)号：US11555901B2

公开(公告)日：2023-01-17

申请号：US16939875

申请日：2020-07-27

Applicant: NXP B.V.

Inventor： Muhammed Bolatkale ,  Dongjin Son ,  Maxim Kulesh

IPC: G01S7/48 ,  G01S7/4865 ,  G01S7/4863 ,  H01L31/107

Abstract: Example aspects are directed to operating a SPAD receiver such as may be used in a light detection and ranging (Lidar) system. In one example, the SPAD receiver has SPAD circuitry for multiple photon detections using a single-channel TDC (time-to-digital converter), and such photon detection is quenched after detection so as to establish an effective pre-defined OFF period. In response, the SPAD circuitry is recharged for a subsequent ON period during which the SPAD circuitry is unquenched (or armed) for further photon detection and processing.

公开(公告)号：US20220026543A1

公开(公告)日：2022-01-27

申请号：US16939875

申请日：2020-07-27

Applicant: NXP B.V.

Inventor： Muhammed Bolatkale ,  Dongjin Son ,  Maxim Kulesh

IPC: G01S7/4865 ,  H01L31/107 ,  G01S7/4863

Abstract: Example aspects are directed to operating a SPAD receiver such as may be used in a light detection and ranging (Lidar) system. In one example, the SPAD receiver has SPAD circuitry for multiple photon detections using a single-channel TDC (time-to-digital converter), and such photon detection is quenched after detection so as to establish an effective pre-defined OFF period. In response, the SPAD circuitry is recharged for a subsequent ON period during which the SPAD circuitry is unquenched (or armed) for further photon detection and processing.