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:
Sep. 08, 2026
Filed:
Nov. 19, 2021
Ntt, Inc., Tokyo, JP;
Shoko Shinohara, Musashino, JP;
Yusuke Asai, Musashino, JP;
Yasushi Takatori, Musashino, JP;
Junichi Iwatani, Musashino, JP;
Yoshitaka Shimizu, Musashino, JP;
Tomoyuki Yamada, Musashino, JP;
NTT, Inc., Tokyo, JP;
Abstract
A frequency state observation system observes a spectrum in a predetermined frequency range by a plurality of observation devices that are arranged in advance at different positions in a predetermined area, performs wireless communication in the predetermined frequency range, receives, by a data calculation device, the spectrum and packet information from each of the plurality of observation devices together with each of time information, synchronizes each of spectra received by the data calculation device based on time information of packet information corresponding to the spectra, and determines usage of a frequency in the predetermined area or the type of a wireless system transmitting a radio wave in the predetermined area, on the basis of each of the synchronized spectra.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile