公开(公告)号：US11832146B2

公开(公告)日：2023-11-28

申请号：US17204327

申请日：2021-03-17

Applicant: Quanta Computer Inc.

Inventor： Po-Shan Kao ,  Cheng-Yang Tseng ,  Wan-An Yang ,  Yan-Cheng Chang

IPC: H04W4/02 ,  G01S5/04 ,  G01S3/26 ,  G01S3/74 ,  H04W64/00

CPC classification number: H04W4/023 ,  G01S3/26 ,  G01S3/74 ,  G01S5/04 ,  H04W64/006

Abstract: An electronic device includes an indoor positioner and a positioning engine server. The indoor positioner has an antenna array including a plurality of antenna units. The indoor positioner divides the antenna units into multiple antenna unit groups, receives a wireless signal from user equipment at each time point via the antenna unit groups, and calculates a plurality of angles of arrival (AOA) corresponding to the antenna unit groups at each time point. The positioning engine server receives and stores the angles of arrival corresponding to the antenna unit groups at each time point, and filters the angles of arrival according to the angle sizes of the angles of arrival corresponding to the antenna unit groups at each time point stored in an observation period.

公开(公告)号：US11864071B2

公开(公告)日：2024-01-02

申请号：US17128375

申请日：2020-12-21

Applicant: Quanta Computer Inc.

Inventor： Yan-Cheng Chang ,  Po-Shan Kao ,  Cheng-Yang Tseng ,  Jia-Yang Tsao

IPC: H04W4/33 ,  H04W4/38 ,  G01C21/20

CPC classification number: H04W4/33 ,  G01C21/206 ,  H04W4/38

Abstract: An electronic device includes an indoor positioning tag and an indoor positioner. The indoor positioning tag includes a gravity sensor. The indoor positioning tag determines whether to start to transmit a wireless signal according to the acceleration magnitude, the acceleration direction, and the duration of acceleration change detected by the gravity sensor, and adjusts the frequency of the transmission interval of the wireless signal.