公开(公告)号：US11821982B2

公开(公告)日：2023-11-21

申请号：US17104100

申请日：2020-11-25

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Umberto R. Scaramozzino ,  Russell Calvarese ,  Menuka Gayan Senevirathna ,  Charles Burton Swope

IPC: G01S15/10 ,  H04W4/80 ,  G01S7/52

CPC classification number: G01S15/102 ,  G01S7/52004 ,  H04W4/80

Abstract: In an embodiment, the present invention is a method for ranging which includes emitting an acoustic signal at a first frequency, monitoring for a first acoustic response signal at a second frequency, and responsive to receiving the first acoustic response signal within a predetermined amount of time, (1) calculating a first distance between a first device and a second device based on a duration between emitting the first acoustic signal and receiving the first acoustic response signal, and (2) broadcast a first message including the distance and an identifier.

公开(公告)号：US20220163663A1

公开(公告)日：2022-05-26

申请号：US17104100

申请日：2020-11-25

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Umberto R. Scaramozzino ,  Russell Calvarese ,  Menuka Gayan Senevirathna ,  Charles Burton Swope

IPC: G01S15/10 ,  G01S7/52 ,  H04W4/80

Abstract: In an embodiment, the present invention is a method for ranging which includes emitting an acoustic signal at a first frequency, monitoring for a first acoustic response signal at a second frequency, and responsive to receiving the first acoustic response signal within a predetermined amount of time, (1) calculating a first distance between a first device and a second device based on a duration between emitting the first acoustic signal and receiving the first acoustic response signal, and (2) broadcast a first message including the distance and an identifier.