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.
Patent No.:
Date of Patent:
Dec. 05, 2023
Filed:
Feb. 25, 2020
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Hisatoshi Kasahara, Tokyo, JP;
Norihiro Fujimoto, Tokyo, JP;
Hitoshi Mizuno, Tokyo, JP;
Seiya Sato, Tokyo, JP;
Kazuhiko Goto, Tokyo, JP;
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo, JP;
Abstract
An object is to estimate the course of a movable terminal device. An information processing system (S) includes a plurality of transmission devices () capable of transmitting predetermined radio waves, a terminal device () capable of receiving the predetermined radio waves, and a management device () communicably connected to the terminal device. The terminal device () measures intensities of radio waves received from the transmission devices () at predetermined times, and transmits measurement results to the management device (). The management device () calculates distances between the terminal device () and each of the transmission devices () at the predetermined times from the measurement results, and calculates positions of the terminal device () at the predetermined times from the calculated distances.