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:
Jul. 12, 2016
Filed:
Nov. 25, 2011
Takashi Yamakawa, Iwata, JP;
Mai Koike, Hamamatsu, JP;
Masato Hata, Hamamatsu, JP;
Yasushi Shimizu, Hamamatsu, JP;
Takashi Yamakawa, Iwata, JP;
Mai Koike, Hamamatsu, JP;
Masato Hata, Hamamatsu, JP;
Yasushi Shimizu, Hamamatsu, JP;
Yamaha Corporation, Hamamatsu-shi, JP;
Abstract
Whereas a high masking effect can be secured in a space to which a masking sound is emitted, the degree of a discomfort a person existing in the space suffers can be reduced. In superimposition processing, a CPUextracts sound signals in different intervals of a sound signal X-n of a human voice, superimposes the extracted sound signals on each other on the time axis, and outputs a resulting superimposed sound signal X-n. In shift and addition processing, the CPU 12 interchanges a sound signal, before a reference position, of a sound signal X-n and a sound signal, after the reference position, of the sound signal X-n (shift processing) and outputs a sound signal X-n obtained by adding together a shift-processed sound signal X'-n and the original, non-shift-processed sound signal X-n.