1
Yumiko Kato, Takahiro Kamai: Prosody generating device, prosody generating method, and program. Matsushita Electric Industrial, Hamre Schumann Mueller & Larson P C, April 3, 2007: US07200558 (85 worldwide citation)

A prosody generation apparatus capable of suppressing distortion that occurs when generating prosodic patterns and therefore generating a natural prosody is provided. A prosody changing point extraction unit in this apparatus extracts a prosody changing point located at the beginning and the ending ...


2
Takahiro Kamai, Kenji Matsui, Noriyo Hara: Speech synthesizing method and apparatus for combining natural speech segments and synthesized speech segments. Matsushita Electric Industrial, Beveridge DeGrandi Weilacher & Young, January 26, 1999: US05864812 (25 worldwide citation)

A method and apparatus for synthesizing speech. According to one variation of the method and apparatus, a plurality of speech segment data units is prepared for all desired speech waveforms. Speech is then synthesized by reading out from memory the appropriate speech segment data units, and a desire ...


3
Yumiko Kato, Kenji Matsui, Takahiro Kamai, Katsuyoshi Yamagami: Speech synthesizing system and method for modifying prosody based on match to database. Matsushita Electric Industrial, Parkhurst & Wendel L, November 23, 2004: US06823309 (21 worldwide citation)

A speech synthesis system for storing in advance a degree of modification of prosodic data in a prosodic data modifying rule apparatus, the degree of modification corresponding to an approximate cost and being stored as a modifying rule, a prosodic data retrieving section for retrieving a prosodic d ...


4
Takahiro Kamai, Kenji Matsui: Method and system for analyzing voices. Matsushita Electric Industrial, Ratner & Prestia, December 3, 2002: US06490562 (15 worldwide citation)

It is to assign proper pitch marks to voice waveforms, thereby to obtain smoothly synthesized voices and to control pitches of voices very accurately according to pitch marks of recorded messages.


5
Takahiro Kamai, Kenji Matsui: Method and system for analyzing voices. Matsushita Electric Industrial, Ratner & Prestia PC, February 19, 2002: US06349277 (12 worldwide citation)

It is to assign proper pitch marks to voice waveforms, thereby to obtain smoothly synthesized voices and to control pitches of voices very accurately according to pitch marks of recorded messages.


6
Yoshifumi Hirose, Takahiro Kamai: Voice quality edit device and voice quality edit method. Panasonic Corporation, Wenderoth Lind & Ponack L, April 10, 2012: US08155964 (10 worldwide citation)

This invention includes: a voice quality feature database (101) holding voice quality features; a speaker attribute database (106) holding, for each voice quality feature, an identifier enabling a user to expect a voice quality of the voice quality feature; a weight setting unit (103) setting a weig ...


7
Yumiko Kato, Takahiro Kamai, Yoshihisa Nakatoh, Yoshifumi Hirose: Emotion recognition apparatus. Panasonic Corporation, Wenderoth Lind & Ponack L, June 19, 2012: US08204747 (9 worldwide citation)

An emotion recognition apparatus performs accurate and stable speech-based emotion recognition, irrespective of individual, regional, and language differences of prosodic information. The emotion recognition apparatus includes: a speech recognition unit which recognizes types of phonemes included in ...


8
Yoshifumi Hirose, Natsuki Saito, Takahiro Kamai: Speech synthesis apparatus and speech synthesis method. Matsushita Electric Industrial, Wenderoth Lind & Ponack L, March 25, 2008: US07349847 (7 worldwide citation)

A speech synthesis apparatus appropriately transforms a voice characteristic of speech. The speech synthesis apparatus includes an element storing unit in which speech elements are stored, and a function storing unit in which transformation functions are stored, an adaptability judging unit which de ...


9
Takahiro Kamai, Kenji Matsui, Zhu Weizhong: System and method for synthesizing multiplexed speech and text at a receiving terminal. Matsushita Electric Industrial, RatnerPrestia, February 4, 2003: US06516298 (7 worldwide citation)

The reception terminal receives a code series from the communication path. The separator separates the code series into a speech code series and text information. The speech code series is decoded into a pitch period, a LSP coefficient, and code numerals by the synthesizer to reproduce the speech so ...


10
Yoshifumi Hirose, Takahiro Kamai: Speech separating apparatus, speech synthesizing apparatus, and voice quality conversion apparatus. Panasonic Corporation, Wenderoth Lind & Ponack L, August 28, 2012: US08255222 (5 worldwide citation)

A speech separating apparatus includes: a PARCOR calculating unit that extracts vocal tract information from an input speech signal; a filter smoothing unit that smoothes, in a first time constant, the vocal tract information extracted by the PARCOR calculating unit; an inverse filtering unit that c ...