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Hirofumi Nishimura, Toshimitsu Minowa, Yasuhiko Arai: Speech synthesizing system and redundancy-reduced waveform database therefor. Matsushita Electric Industrial, Lowe Hauptman Gopstein Gilman & Berner, September 26, 2000: US06125346 (92 worldwide citation)

A speech synthesizing system using a redundancy-reduced waveform database is disclosed. Each waveform of a sample set of voice segments necessary and sufficient for speech synthesis is divided into pitch waveforms, which are classified into groups of pitch waveforms closely similar to one another. O ...


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Hirofumi Nishimura, Toshimitsu Minowa, Yasuhiko Arai: Method and apparatus for synthesizing speech. Matsushita Electric Industrial, Lowe Hauptman Gopstein Gilman & Berner, March 7, 2000: US06035272 (7 worldwide citation)

A speech synthesizing apparatus for deforming and connecting speech pieces to synthesize speech has a speech waveform database for storing data of an accent type of a speech piece of a word or a syllable uttered with type-0 accent and type-1 accent, data of phonemic transcription of the speech piece ...


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Yasuhiko Arai, Hirofumi Nishimura, Toshimitsu Minowa, Ryou Mochizuki, Takashi Honda: Method of changing a pitch of a VCV phoneme-chain waveform and apparatus of synthesizing a sound from a series of VCV phoneme-chain waveforms. Matsushita Electric Industrial, Lowe Hauptman Gopstein Gilman & Berner, September 7, 1999: US05950152 (5 worldwide citation)

A composite pitch pattern of an artificial waveform of a composite sound indicating characters is produced according to a general pitch pattern producing model, and a pitch pattern of a VCV phoneme-chain waveform of each of VCV phoneme-chains corresponding to the characters is produced from an actua ...


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Hiroshi Umeda, Hiroshi Tanaka, Masamichi Harada, Yasuhiko Arai: Method for producing light-emitting diode. Sharp Kabushiki Kaisha, Nixon & Vanderhye, June 25, 1996: US05529938 (4 worldwide citation)

A method for producing a light-emitting diode provided with a pn junction of GaP containing nitrogen on an n-type GaP substrate, includes the steps of: forming an n-type GaP layer on the n-type GaP substrate by epitaxial growth by bringing the n-type GaP substrate into contact with an oversaturated ...


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Yasuhiko Arai, Toshiki Ichikawa, Tokio Sakata: Oil passage change-over valve. KUBOTA CORPORATION, Birch Stewart Kolasch & Birch, July 5, 2016: US09382926

An oil passage change-over valve allows an alternate communication from a first opening portion in one side a second and a third opening portion provided in another side to be changed over. A first opening portion is formed in one side of a valve body and the second and third opening portions are fo ...