公开(公告)号：US20250085411A1

公开(公告)日：2025-03-13

申请号：US18796144

申请日：2024-08-06

Applicant: APPLE INC.

Inventor： Gabrielle A. Belzberg ,  Alexander J. Wiens ,  Halil I. Basturk ,  Stephen Jackson

IPC: G01S13/76

Abstract: In some implementations, the techniques may include at a first time: performing, using a first sensor, a first ranging measurement with a second device to obtain a first distance; and performing, using a second sensor, a first altitude measurement to obtain a first altitude. In addition, the techniques may include at a second time: performing, using the first sensor, a second ranging measurement with the second device to obtain a second distance; and performing, using the second sensor, a second altitude measurement to obtain a second altitude. The techniques may include determining a ranging difference between the first distance and the second distance. Moreover, the techniques may include determining an altitude difference between the first altitude and the second altitude. Also, the techniques may include determining whether the second device is on a different floor of a building than the first device.