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:
Apr. 30, 2019
Filed:
Jan. 27, 2016
Nippon Telegraph and Telephone Corporation, Chiyoda-ku, JP;
The University of Tokyo, Bunkyo-ku, JP;
Takehiro Moriya, Atsugi, JP;
Yutaka Kamamoto, Atsugi, JP;
Noboru Harada, Atsugi, JP;
Hirokazu Kameoka, Atsugi, JP;
Ryosuke Sugiura, Bunkyo-ku, JP;
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Chiyoda-ku, JP;
The University of Tokyo, Bunkyo-ku, JP;
Abstract
A parameter determination device includes: a spectral envelope estimating portion performing estimation of a spectral envelope using a parameter ηspecified in a predetermined method, regarding the η-th power of absolute values of a frequency domain sample sequence corresponding to a time-series signal as a power spectrum on the assumption that the parameter ηand a parameter η are positive numbers; a whitened spectral sequence generating portion obtaining a whitened spectral sequence which is a sequence obtained by dividing the frequency domain sample sequence by the spectral envelope; and a parameter acquiring portion determining such a parameter η that generalized Gaussian distribution with the parameter η as a shape parameter approximates a histogram of the whitened spectral sequence.