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:
Jun. 14, 2022
Filed:
Sep. 05, 2017
Nec Corporation, Tokyo, JP;
Tatsuya Komatsu, Tokyo, JP;
Yuzo Senda, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A sound signal corresponding to a sound emitted by a sound source is inputted to a frequency analysis unit (), and the frequency analysis unit () performs frequency analysis of the sound signal and generates a spectrogram. Spectrogram template information indicating spectrograms corresponding to each of at least a plurality of predetermined movement speeds, the spectrograms being for cases in which the sound source is moved, is stored in a model storage unit (). An estimation unit () estimates the movement speed of the sound source on the basis of the spectrogram generated by the frequency analysis unit () and the plurality of spectrograms indicated by the spectrogram template information stored in the model storage unit ().