Patents by Inventor Nobumasa Seiyama

Nobumasa Seiyama has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11404041
    Abstract: A message management unit receives and accumulates a message, wherein the message is distributed for every update, is the message data representing a latest situation of a competition, an explanation generation unit generates an explanatory text for conveying unconveyed information detected from the message, based on conveyed information, a speech synthesis unit outputs a speech converted from the explanatory text, wherein the explanation generation unit stores the unconveyed information for the explanatory text as the conveyed information, stands by until completion of completion of the speech, and initiates a procedure for generating a new explanatory text based on updated unconveyed information.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: August 2, 2022
    Assignees: NIPPON HOSO KYOKAI, NHK Engineering System, Inc.
    Inventors: Tadashi Kumano, Ichiro Yamada, Atsushi Imai, Hideki Sumiyoshi, Yuko Yamanouchi, Toshihiro Shimizu, Nobumasa Seiyama, Shoei Sato, Reiko Saito, Taro Miyazaki, Kiyoshi Kurihara, Manon Ichiki, Tohru Takagi
  • Publication number: 20200066251
    Abstract: A message management unit receives and accumulates a message, wherein the message is distributed for every update, is the message data representing a latest situation of a competition, an explanation generation unit generates an explanatory text for conveying unconveyed information detected from the message, based on conveyed information, a speech synthesis unit outputs a speech converted from the explanatory text, wherein the explanation generation unit stores the unconveyed information for the explanatory text as the conveyed information, stands by until completion of completion of the speech, and initiates a procedure for generating a new explanatory text based on updated unconveyed information.
    Type: Application
    Filed: May 23, 2018
    Publication date: February 27, 2020
    Applicants: NIPPON HOSO KYOKAI, NHK Engineering System, Inc.
    Inventors: Tadashi KUMANO, Ichiro YAMADA, Atsushi IMAI, Hideki SUMIYOSHI, Yuko YAMANOUCHI, Toshihiro SHIMIZU, Nobumasa SEIYAMA, Shoei SATO, Reiko SAITO, Taro MIYAZAKI, Kiyoshi KURIHARA, Manon ICHIKI, Tohru TAKAGI
  • Patent number: 9129609
    Abstract: A speech speed conversion factor determining device has a physical index calculation unit including a sound/silence judgment unit that distinguishes between sound and silent intervals of an input signal, a fundamental frequency calculation unit that calculates a fundamental frequency of the signal in the sound intervals and determines stable and unstable intervals, a frequency smoothing unit that smoothes the fundamental frequency in the stable intervals, a pseudo fundamental frequency calculation unit that calculates, for the intervals, a pseudo fundamental frequency by interpolation , and a fundamental frequency general shape connection unit that connects the smoothed and pseudo frequencies to obtain sampled values of a general shape of the frequency, such that the sampled values are output as an index, based on which conversion factor are calculated.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: September 8, 2015
    Assignee: NIPPON HOSO KYOKAI
    Inventors: Tohru Takagi, Atsushi Imai, Nobumasa Seiyama, Reiko Saitou
  • Publication number: 20130325456
    Abstract: A speech speed conversion factor determining device has a physical index calculation unit including a sound/silence judgment unit that distinguishes between sound and silent intervals of an input signal, a fundamental frequency calculation unit that calculates a fundamental frequency of the signal in the sound intervals and determines stable and unstable intervals, a frequency smoothing unit that smoothes the fundamental frequency in the stable intervals, a pseudo fundamental frequency calculation unit that calculates, for the intervals, a pseudo fundamental frequency by interpolation , and a fundamental frequency general shape connection unit that connects the smoothed and pseudo frequencies to obtain sampled values of a general shape of the frequency, such that the sampled values are output as an index, based on which conversion factor are calculated.
    Type: Application
    Filed: January 27, 2012
    Publication date: December 5, 2013
    Applicant: NIPPON HOSO KYOKAI
    Inventors: Tohru Takagi, Atsushi Imai, Nobumasa Seiyama, Reiko Saitou
  • Patent number: 6374213
    Abstract: Frame power of an input signal is calculated to discriminate speech frame intervals from non-speech intervals, by thresholding current frame power using an adaptive speech-detection threshold based on the past maximum frame power value and the difference between past maximum and the minimum frame power values, adaptively updated using a predetermined number of frames prior to the current one.
    Type: Grant
    Filed: February 12, 2001
    Date of Patent: April 16, 2002
    Assignee: Nippon Hoso Kyokai
    Inventors: Atsushi Imai, Nobumasa Seiyama, Tohru Takagi
  • Patent number: 6360198
    Abstract: A reproduction part reproduced at a changeable speed ratio r. An A/D conversion part A/D converts, based on sampling frequency fi, an audio signal reproduced at a speed different from that upon recording. A block data division part divides audio data based on an attribute possessed by the audio data. An audio data connection part successively interpolates or thins out the divided audio data based on a ratio of 1/r. A D/A conversion part D/A converts the interpolated or thinned-out audio data based on sampling frequency fo. If a relation of fi/fo=r/c is satisfied, the audio signal is outputted as a sound of high quality constantly synchronized with an image signal and having a pitch which does not change irrespective of the changeable speed ratio r at which the image signal is reproduced.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: March 19, 2002
    Assignee: Nippon Hoso Kyokai
    Inventors: Atsushi Imai, Nobumasa Seiyama, Tohru Takagi
  • Publication number: 20010010037
    Abstract: When a delivered speed of a listening speech (speech speed) is slowed down, a connection order generator (8) always monitors a data length of input speech, an output data length calculated previously by a conversion function concerning a preset scaling factor, and a data length of actual output speech in predetermined processing unit, then decides connection order not to cause inconsistency among them. The speech data and the connection data are connected without omission of speech information by controlling a speech data connector (9). When power of an input signal data is calculated to discriminate a speech interval and a non-speech interval, a threshold value for power is decided according to a maximum value of the power and difference between the maximum value and a minimum value.
    Type: Application
    Filed: February 12, 2001
    Publication date: July 26, 2001
    Applicant: Nippon Hosa Kyoka; a Japanese Corporation
    Inventors: Atsushi Imai, Nobumasa Seiyama, Tohru Takagi
  • Patent number: 6236970
    Abstract: A speech-rate converter slowing down input speech regularly monitors the data length of the input speech and the previously estimated extended output data length for the current rate scaling factor, computing new output data length estimates. The conversion rate is adaptively modified depending on the time lag between input and output speech so as to make input and output data lengths consistent without skipping any spoken input portions. Input signal power is monitored to discriminate speech and non-speech intervals, and the portions of input non-speech intervals exceeding a conversion-rate-dependent duration are deleted.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: May 22, 2001
    Assignee: Nippon Hoso Kyokai
    Inventors: Atsushi Imai, Nobumasa Seiyama, Tohru Takagi
  • Patent number: 6205420
    Abstract: An analysis processor applies an analysis process to input speech data thereby to obtain block lengths for respective attributes of voiced sound, voiceless sound and silence. A block data splitter splits the input speech data into blocks having the block lengths dependent on the respective attributes. A block data memory sequentially stores speech data split by the block data splitter as block speech data and the block lengths. A connection data generator generates connection data for connecting the adjacent block speech data each other at every moment by using the block speech data. A connection data storing portion sequentially stores the connection data. A connection order generator generates block connection order of the block speech data and the connection data at every moment according to at least the block lengths output sequentially from the block data storing portion and extension scaling factors in time for the respective attributes.
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: March 20, 2001
    Assignee: Nippon Hoso Kyokai
    Inventors: Tohru Takagi, Nobumasa Seiyama, Atsushi Imai, Akio Ando
  • Patent number: 5305420
    Abstract: A method and an apparatus for hearing assistance, capable of compensating the lowering of the speech recognition ability related to the deterioration of the auditory sense center. The input speech is divided into voiced speech sections, unvoiced speech sections, and silent sections, of which the voiced speech sections and the silent sections are appropriately extended/contracted while the unvoiced speech sections are left unchanged, and then these sections are combined in an identical order as in the input speech, so as to obtain output speech which is easier to listen for a listener with a handicapped hearing ability.
    Type: Grant
    Filed: September 22, 1992
    Date of Patent: April 19, 1994
    Assignee: Nippon Hoso Kyokai
    Inventors: Akira Nakamura, Ryou Ikezawa, Nobumasa Seiyama, Tohru Takagi, Eiichi Miyasaka