公开(公告)号：WO2021130347A1

公开(公告)日：2021-07-01

申请号：PCT/EP2020/087835

申请日：2020-12-23

Applicant: AMS INTERNATIONAL AG

Inventor： NELSON, Doug ,  HEDGE, Pradeep ,  COGAN, Timothy

IPC: G01S7/4863 ,  G01S7/4865 ,  G01S7/497 ,  G01S17/10 ,  G01S17/42 ,  G01S17/89

Abstract: A method of measuring a distance using a time of flight sensor comprising a substantially transparent cover covering a light emitter and one or more photodetectors. The method comprises emitting a series of pulses of light from the light emitter; and using the one or more photodetectors to obtain a distribution of times at which at least one photodetector of the one or more photodetectors detected photons after each emission of the series of pulses of light. If the distribution of times comprises only a single peak, the method further comprises analysing the single peak to determine if the single peak includes counts of photons reflected from a target. If the single peak includes counts of photons reflected from a target, the method further comprises measuring the separation between a reference time and a point of the single peak.