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:
Mar. 29, 2022
Filed:
Dec. 21, 2020
Nec Corporation, Tokyo, JP;
Yoshiaki Nishikawa, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
An estimation unitestimates, from each of acquired first time-series data pieces, a state of a radio field intensity at a position of an apparatusthat corresponds to each of the first time-series data pieces. The estimation unitestimates, from second time-series data, a state of the radio field intensity at a position of an apparatus. An estimation unitestimates a state of the radio field intensity at each point in a target space by using the position of each apparatusand the state of the radio field intensity thereof. An estimation unitcompares the state at each point with the state at the position of the apparatusand thereby estimates the position of the apparatus. An estimation unitestimates a position state of the apparatusbased on time-series data of the position of the apparatus