公开(公告)号：US10721393B2

公开(公告)日：2020-07-21

申请号：US15858008

申请日：2017-12-29

Applicant: Axis AB

Inventor： Oscar Sandstrom ,  Can Xu

IPC: H04N5/232 ,  H04N5/225 ,  G01S17/36 ,  G01S17/87 ,  G01S7/48 ,  G01S7/4915 ,  G01S17/42 ,  G01S7/4911 ,  G01S17/86

Abstract: A method may include modulating a property of a laser with a reference signal to generate a transmit signal, and diverging the transmit signal to illuminate a field of illumination with the transmit signal, wherein the field of illumination includes an object. The method may include receiving, at a sensor, a signal reflected from the field of illumination and the object and comparing a phase of the received signal to a phase the reference signal. The method may include calculating a distance to the object based on the comparing.

公开(公告)号：US20190208113A1

公开(公告)日：2019-07-04

申请号：US15858008

申请日：2017-12-29

Applicant: Axis AB

Inventor： Oscar Sandstrom ,  Can Xu

IPC: H04N5/232 ,  H04N5/225 ,  G01S17/36

Abstract: A method may include modulating a property of a laser with a reference signal to generate a transmit signal, and diverging the transmit signal to illuminate a field of illumination with the transmit signal, wherein the field of illumination includes an object. The method may include receiving, at a sensor, a signal reflected from the field of illumination and the object and comparing a phase of the received signal to a phase the reference signal. The method may include calculating a distance to the object based on the comparing.