公开(公告)号：US20240426985A1

公开(公告)日：2024-12-26

申请号：US18341487

申请日：2023-06-26

Applicant: STMicroelectronics International N.V.

Inventor： Thomas Perotto

IPC: G01S7/497 ,  G01S7/4861 ,  G01S7/4865 ,  G01S17/10

Abstract: A method of calibrating a direct time-of-flight (dToF) sensor to compensate for crosstalk includes emitting N photonic pulses from an emitter of the dToF sensor where N is the number of photonic pulses, receiving N crosstalk signals including a first crosstalk signal and N−1 remaining crosstalk signals at a receiver of the dToF sensor, averaging the N−1 remaining crosstalk signals to generate an averaged crosstalk signal, subtracting the first crosstalk signal from the averaged crosstalk signal to generate an estimated wraparound signal, subtracting the estimated wraparound signal from each of the N−1 remaining crosstalk signals to obtain corrected crosstalk signals, and calibrating the dToF sensor using the corrected crosstalk signals.

公开(公告)号：US20240385323A1

公开(公告)日：2024-11-21

申请号：US18648988

申请日：2024-04-29

Applicant: STMicroelectronics International N.V.

Inventor： Thomas Perotto ,  Charlotte Milanetto

IPC: G01S17/08 ,  G01S7/481

Abstract: A proximity sensing device includes a proximity sensor including a light source, a light detector including a first photodiode adapted to generate a first signal, and a second photodiode adapted to generate a second signal, the second photodiode and the light source being separated from the first photodiode with a separator. The proximity sensing device further includes a selecting circuit adapted to compare the first signal to the second signal, and to select a signal from the first and second signals according to the executed comparison.