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:
Jan. 05, 2021
Filed:
Nov. 22, 2019
Position detection system, position detection device, position detection method, and sensor terminal
Fujitsu Limited, Kawasaki, JP;
Kouichi Kanda, Chofu, JP;
Jun-ichi Nagata, Kawasaki, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A position detection system includes a GNSS sensor terminal that receives a satellite signal from a GNSS satellite as a snapshot, at least one relay device that receives the snapshot GNSS signal transmitted by the GNSS sensor terminal, and a calculation device that measures a position of the GNSS sensor terminal by using a code phase and a Doppler frequency of the GNSS satellite obtained from the snapshot GNSS signal, wherein the calculation device estimates an initial position of the GNSS sensor terminal by using position information of the relay device that has received the snapshot GNSS signal transmitted by the GNSS sensor terminal.