公开(公告)号：US10928479B2

公开(公告)日：2021-02-23

申请号：US15951202

申请日：2018-04-12

Applicant: Apple Inc.

Inventor： Alon Cohen ,  Eran Gerson ,  Gaby Prechner ,  Michael Bogdanov

IPC: G01S1/30 ,  G01S13/87 ,  G01S13/32 ,  G01S7/00 ,  G01S13/08 ,  G01S13/88 ,  G01S13/82

Abstract: An apparatus for determining a distance to an object is provided. The apparatus includes a first transceiver configured to transmit a first radio frequency signal. Further, the apparatus includes a second transceiver configured to transmit a second radio frequency signal in response to receiving the first radio frequency signal. The apparatus additionally includes a processing circuit configured to determine the distance to the object based on a transmission time of the first radio frequency signal and a reception time, at the first transceiver, of a reflected component of the second radio frequency signal that is reflected by the object.