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:
Apr. 07, 2020

Filed:

Jul. 12, 2019
Applicant:

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

Inventors:

Tetsu Nishimura, Kyoto, JP;

Nobumitsu Amachi, Kyoto, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 24/00 (2009.01); G01S 5/14 (2006.01); G01S 5/02 (2010.01); G01S 11/06 (2006.01);
U.S. Cl.
CPC ...
G01S 5/14 (2013.01); G01S 5/0221 (2013.01); G01S 5/0226 (2013.01); G01S 11/06 (2013.01);
Abstract

A position detection system includes a transmitter that transmits a first beacon signal with a first strength and at a first incidence and that transmits a second beacon signal with a second strength, which is greater than the first strength, and at a second incidence, which is lower than the first incidence, a plurality of receivers that are installed at known positions different from each other and that measure signal strengths of the first beacon signal and the second beacon signal, and a calculator that performs first processing in which the position of the transmitter is detected on the basis of a signal strength of the first beacon signal measured by one of the receivers and second processing in which the position of the transmitter is detected on the basis of signal strengths of the second beacon signal measured by two or more of the receivers.


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