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:
Feb. 11, 2020
Filed:
Mar. 18, 2019
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Tatsuya Kikuzuki, Kawasaki, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A non-transitory computer-readable recording medium storing a program that causes a computer to execute a procedure to determine a feature of each standard of a wireless environment in which radio signals including a CSS signal chirp-modulated co-exist, the procedure includes obtaining a spectrum by subjecting each radio signal to fast Fourier transform with predetermined frequency resolution and time resolution capable of visualizing a feature of the CSS signal, coarsening the frequency resolution of the spectrum by adopting an effective value in a specific frequency domain, calculating a duration of the radio signal, based on the coarsened frequency resolution of the spectrum, coarsening the time resolution of the spectrum by adopting an effective value in the duration, calculating a bandwidth of the radio signal, based on the coarsened time resolution of the spectrum, and determining the feature of the radio signal of each standard, based on the duration and the bandwidth.