公开(公告)号：US20240053472A1

公开(公告)日：2024-02-15

申请号：US18267366

申请日：2021-12-14

Applicant: ams International AG

Inventor： Vijay Yadgiri ELE ,  Sandeep VERNEKAR ,  Dinesh KURUGANTI ,  Radhika KODE

IPC: G01S17/04 ,  G01J1/42 ,  G01S7/497

CPC classification number: G01S17/04 ,  G01J1/4204 ,  G01S7/497 ,  G01S7/51

Abstract: A proximity sensing device is disclosed comprising: a radiation emitter; a radiation sensor configured to sense a reflected radiation from the radiation emitter; a memory for storing a plurality of ambient radiation level ranges and a plurality of coefficients that map onto the plurality of ambient radiation level ranges; and processing circuitry configured to compensate an output from the radiation sensor for crosstalk by subtracting from the output a measured ambient radiation level scaled by either: a coefficient selected from the plurality of coefficients; or a value derived from the plurality of coefficients. A proximity sensing method and a proximity sensing calibration method are also disclosed.