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:
Dec. 13, 2005
Filed:
Oct. 04, 2000
Seiichi Tenpaku, Minoh, JP;
Toshio Hirai, Minoh, JP;
Seiichi Tenpaku, Minoh, JP;
Toshio Hirai, Minoh, JP;
Arcadia, Inc., Osaka, JP;
Abstract
The present invention provides pitch conversion processing technology capable of minimizing the distortion of speech sound naturalness. A speech waveform in a pitch-unit is considered to be divided into two segments: 1) the segment of β, that starts from the minus peak, where the waveform depending on the shape of vocal tracts appears, and 2) the segment of γ where the waveform depending on the vocal tract shape is attenuating and converging on the next minus peak. In addition, α is the point where a minus peak appears along with the glottal closure. Based on characteristics of speech waveforms, the present invention processes waveform for converting pitch in the segment of γ just before the next minus peak, which is least affected by the minus peak associated with the glottal closure. As such, waveform processing can be performed by keeping the complete contour of waveform at around the peak, and thereby reducing the effects of pitch conversion.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile