The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 17, 2020

Filed:

May. 21, 2019
Applicant:

Murata Manufacturing Co., Ltd., Kyoto, JP;

Inventors:

Kenji Hayashikoshi, Kyoto, JP;

Atsuto Komoda, Kyoto, JP;

Shinya Harada, Kyoto, JP;

Nobumitsu Amachi, Kyoto, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 21/20 (2006.01); H04W 64/00 (2009.01); G01S 5/14 (2006.01); G01S 11/06 (2006.01); G01S 5/02 (2010.01);
U.S. Cl.
CPC ...
H04W 64/003 (2013.01); G01C 21/206 (2013.01); G01S 5/02 (2013.01); G01S 5/14 (2013.01); G01S 11/06 (2013.01); H04W 64/00 (2013.01);
Abstract

A position estimation system () includes: a plurality of fixed stations (-) installed inside a building, the plurality of fixed stations (-) each measuring the signal strength of a radio signal transmitted from a mobile object (); and a calculator configured to estimate a position of the mobile object () based on the signal strengths measured at the plurality of fixed stations (-), wherein each of the plurality of fixed stations (-) is installed in such a position that a distance to a top part of the mobile object () is equal to or less than a predetermined distance when the mobile object () is directly below the fixed station (-).


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