公开(公告)号：US12298393B2

公开(公告)日：2025-05-13

申请号：US17413766

申请日：2019-11-26

Applicant: VALEO COMFORT AND DRIVING ASSISTANCE

Inventor： Sylvain Beaudoin ,  Sebastien Trapani ,  Frédéric Autran

IPC: G01S17/36 ,  G01S7/48 ,  G01S7/486 ,  G01S7/487 ,  G01S17/894

Abstract: The invention relates to a flight time sensor (10) comprising:—a lighting device (11) comprising a light source (12) which emits a source beam (13) in the direction of a scene (3) comprising an object (4) which is capable of reflecting the source beam;—a detector (15) comprising a matrix (16) of photo-sensitive pixels (16A) which receive a portion (18) of the source beam reflected by the object; and—an electronic unit (19) which is configured:—to generate a modulation signal and to control the device by means of this signal so that the source beans has a source light power which is modulated temporally;—to process electric signals which are supplied as a function of time by the detector, each electric signal representing a fraction of the source light power reflected in the direction of a pixel; and—to deduce from the electric signals a characteristic distance (Dobj) between the object and the device. According to the invention, the unit is configured, when the object is detected as being at a characteristic distance smaller than a predetermined threshold distance, to control the device in order to reduce the average source light power.