Patents by Inventor Junji Tomita

Junji Tomita 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: 12210847
    Abstract: A sentence generation device has: an estimation unit for receiving input of a first sentence and a focus point related to generation of a second sentence to be generated based on the first sentence, and estimating importance of each word constituting the first sentence using a pre-trained model; and a generation unit for generating the second sentence based on the importance, and thus makes it possible to evaluate importance of a constituent element of an input sentence in correspondence with a designated focus point.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: January 28, 2025
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Itsumi Saito, Kyosuke Nishida, Atsushi Otsuka, Kosuke Nishida, Hisako Asano, Junji Tomita
  • Patent number: 12182497
    Abstract: An expanded utterance that is used to output a more appropriate output utterance for an utterance can be generated. An utterance sentence expansion device includes an expansion unit that inserts, for an utterance that is an utterance to be expanded that includes a noun and is morphologically analyzed in advance, by using information of an expansion dictionary, which includes higher-level categories of the noun, one or more higher-level categories of the expansion dictionary corresponding to the noun included in the utterance into a position before the noun of the utterance to generate an expanded utterance.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: December 31, 2024
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Ko Mitsuda, Ryuichiro Higashinaka, Junji Tomita
  • Patent number: 12165672
    Abstract: A nonverbal information generation apparatus includes a display unit that partitions text into predetermined units, displays the text partitioned into the predetermined units, and makes nonverbal information that represents information about behavior of a verbal output agent or nonverbal information that represents information about behavior of a receiver of verbal information of the verbal output agent that corresponds to the text when the verbal output agent outputs the verbal information visible in association with the predetermined units of the text.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: December 10, 2024
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Ryo Ishii, Ryuichiro Higashinaka, Taichi Katayama, Junji Tomita, Nozomi Kobayashi, Kyosuke Nishida
  • Publication number: 20240371337
    Abstract: A cholesteric liquid crystal display device with efficient charging capability and its charging method are provided. The cholesteric liquid crystal display device comprises a cholesteric liquid crystal display unit, a power unit, and a control unit. The power unit comprising a solar cell module and an energy storage module electrically connected to the solar cell module. When the control unit detects the electrical energy stored in the energy storage module is less than a threshold, the control unit drives the cholesteric liquid crystal display unit to display in the FC state, then allowing the solar cell module to charge. When the control unit detects that the electrical energy stored in the energy storage module is greater than the threshold, the control unit drives the cholesteric liquid crystal display unit to display in the PL state, thereby reduces any afterimages issues that may occur during image transitions of the display device.
    Type: Application
    Filed: May 2, 2024
    Publication date: November 7, 2024
    Inventors: CHI-CHANG LIAO, JUNJI TOMITA
  • Publication number: 20240353699
    Abstract: A cholesteric liquid crystal display comprising red, green, and blue cholesteric liquid crystal modules. It further comprises a first thin-film photovoltaic module disposed between the blue and the green cholesteric liquid crystal modules, and a second thin-film photovoltaic module disposed between the green and the first selective light reflection modules. The first thin-film photovoltaic module is partially photo-permeable in which the transmittance of blue light is lower than the transmittance of the other lights. It IS preferably a dye sensitized solar cell module which specifically responsible for harvesting blue light. The second thin-film photovoltaic module is partially photo-permeable in which the transmittance of green light is lower than the transmittance of the other lights. It is preferably a dye sensitized solar cell module which specifically responsible for harvesting green light.
    Type: Application
    Filed: April 19, 2024
    Publication date: October 24, 2024
    Inventors: CHI-CHANG LIAO, JUNJI TOMITA
  • Patent number: 12112275
    Abstract: There is provided a learning device for learning a neural network used for search of external knowledge in order to increase search accuracy of external knowledge required for arithmetic processing. With an input sentence Q as an input, an external knowledge search unit 22 selects pieces of external knowledge based on similarity degrees between pieces of external knowledge included in an external knowledge database 2 and the input sentence Q, using a neural network, and causes the selected pieces of external knowledge to be search results R2. A processing unit 14 acquires a response sentence A to the input sentence Q by arithmetic processing with the input sentence Q and the selected pieces of external knowledge as an input. A consideration calculation unit 23 calculates a consideration v determined from an index indicating correctness of the response sentence A based on a true output T given to the input sentence Q in advance and an index indicating quality of the selected pieces of external knowledge.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: October 8, 2024
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Kosuke Nishida, Kyosuke Nishida, Hisako Asano, Junji Tomita
  • Patent number: 12106048
    Abstract: A structured text processing learning apparatus includes a memory, and a processor configured to: analyze a structure of structured text, extract, from the structured text, information related to a predetermined structure to be extracted based on the structure, generate a converted document including text data in which each string indicating a structure of the extracted information has been converted, in accordance with the structure related to the extracted information, and train a neural network for executing predetermined processing for the converted document, using, as input, the generated converted document and correct answer information for performing the predetermined processing. Thus, application of a neural network to structured text is facilitated.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: October 1, 2024
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Narichika Nomoto, Hisako Asano, Junji Tomita
  • Publication number: 20240321011
    Abstract: A nonverbal information generation apparatus includes a nonverbal information generation unit that generates time-information-stamped nonverbal information that corresponds to time-information-stamped text feature quantities on the basis of the time-information-stamped text feature quantities and a learned nonverbal information generation model. The time-information-stamped text feature quantities are configured to include feature quantities that have been extracted from text and time information representing times assigned to predetermined units of the text. The nonverbal information is information for controlling an expression unit that expresses behavior that corresponds to the text.
    Type: Application
    Filed: April 10, 2024
    Publication date: September 26, 2024
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Ryo ISHII, Ryuichiro Higashinaka, Taichi Katayama, Junji Tomita, Nozomi Kobayashi, Kyosuke Nishida
  • Publication number: 20240320440
    Abstract: A generation unit that takes a question Qi that is a word sequence representing a current question in a dialogue, a document P used to generate an answer Ai to the question Qi, a question history {Qi-1, . . . , Qi-k} that is a set of word sequences representing k past questions, and an answer history {Ai-1, . . . , Ai-k} that is a set of word sequences representing answers to the k questions as inputs, and generates the answer Ai by machine reading comprehension in an extractive mode or a generative mode using pre-trained model parameters is provided.
    Type: Application
    Filed: May 22, 2024
    Publication date: September 26, 2024
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yasuhito OSUGI, Itsumi SAITO, Kyosuke NISHIDA, Hisako ASANO, Junji TOMITA
  • Patent number: 12056168
    Abstract: A learning apparatus according to an embodiment has a feature generation means configured to take a search query, a first document related to the search query, and a second document that is not related to the search query as input, and generate a feature of the search query, a feature of the first document, and a feature of the second document, by using model parameters of a neural network, and an update means configured to take the feature of the search query, the feature of the first document, and the feature of the second document as input, and update the model parameters by using an error function including a cost function that is a differentiable approximation function of an L0 norm.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: August 6, 2024
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Taku Hasegawa, Kyosuke Nishida, Junji Tomita, Hisako Asano
  • Patent number: 12026472
    Abstract: A generation unit that takes a question Qi that is a word sequence representing a current question in a dialogue, a document P used to generate an answer Ai to the question Qi, a question history {Qi-1, . . . , Qi-k} that is a set of word sequences representing k past questions, and an answer history {Ai-1, . . . , Ai-k} that is a set of word sequences representing answers to the k questions as inputs, and generates the answer Ai by machine reading comprehension in an extractive mode or a generative mode using pre-trained model parameters is provided.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: July 2, 2024
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yasuhito Osugi, Itsumi Saito, Kyosuke Nishida, Hisako Asano, Junji Tomita
  • Patent number: 12027062
    Abstract: A communication skill evaluation system including: an audio input device; a measurement device; an utterance period detection unit that, based on the audio information input by the audio input device, detects an utterance period and a participant who spoke in each utterance period; a participatory role assignment unit that assigns a participatory role to each participant in accordance with whether or not each participant spoke in each utterance pair composed of two utterances obtained in chronological order from each utterance period; a feature quantity extraction unit that, based on the measurement results by the measurement device, extracts a non-verbal feature quantity for each participant, relating to the non-verbal action at the end of the utterance in each utterance period; and an estimation unit that estimates communication skill for each participant based on a combination, in each utterance period, of the participatory role and the non-verbal feature quantity.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: July 2, 2024
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Ryo Ishii, Ryuichiro Higashinaka, Junji Tomita, Shiro Kumano, Kazuhiro Otsuka
  • Patent number: 12026460
    Abstract: To make it possible to generate dialogue data for generating a question sentence to deeply delve conversation at a low cost. For each of a plurality of pieces of data each including a set of a first utterance sentence that is a sentence uttered by a first user, a second utterance sentence that is a sentence uttered by a second user and is a response to the first utterance sentence, and a third utterance sentence that is a sentence uttered by the first user and is a response to the second utterance sentence, a dialogue data generation unit 110 generates a set of the first utterance sentence of the data and the second utterance sentence of the data as dialogue data when the second utterance sentence of the data is a question sentence using an interrogative.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: July 2, 2024
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Taichi Katayama, Atsushi Otsuka, Ko Mitsuda, Kuniko Saito, Junji Tomita
  • Patent number: 12019986
    Abstract: Acquisition of an utterance pair for expanding a set of utterance pairs for outputting an output utterance in response to receiving a given utterance is described. A keyword extraction unit is configured to compare a degree of characteristic of a word in expansion source utterance pair data and a degree of characteristics of a word in the given utterance data. The expansion source utterance pair data represents a set of expansion source utterance pairs including an input utterance and an output utterance for the input utterance. The present technology includes extracting, based on a comparison result, a keyword list including a keyword that is characteristic of the expansion source utterance pair data. An utterance pair extraction unit is configured to extract, based on the keyword list, an utterance pair from a set of given utterance pairs as an addition for expanding the set of utterance pairs.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: June 25, 2024
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Ko Mitsuda, Ryuichiro Higashinaka, Taichi Katayama, Junji Tomita
  • Publication number: 20240202495
    Abstract: A learning apparatus executes receiving a text and a question associated with the text, and calculating an evidence score expressing a likelihood of a character string included in the text as evidence for an answer to the question by using a model parameter of a first neural network; extracting, by sampling from a predetermined distribution having the evidence score as a parameter, a first set indicating a set of the character strings as the evidence for the answer from the text; receiving the question and the first set and extracting the answer from the first set by using a model parameter of a second neural network; and learning the model parameters of the first and second neural networks by calculating a gradient through error back propagation by using a continuous relaxation and a first loss between the answer and a true answer to the question.
    Type: Application
    Filed: March 6, 2020
    Publication date: June 20, 2024
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Kosuke NISHIDA, Kyosuke NISHIDA, Itsumi SAITO, Hisako ASANO, Junji TOMITA
  • Publication number: 20240202442
    Abstract: A text generation apparatus includes a content selection unit that acquires a reference text based on an input text and information different from the input text and a generation unit that generates a text based on the input text and the reference text, wherein the content selection unit and the generation unit are neural networks based on learned parameters, so that information to be considered when generating a text can be added as text.
    Type: Application
    Filed: March 4, 2024
    Publication date: June 20, 2024
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Itsumi SAITO, Kyosuke NISHIDA, Kosuke NISHIDA, Hisako ASANO, Junji TOMITA, Atsushi OTSUKA
  • Patent number: 12014148
    Abstract: It is possible to ask an appropriate question for digging an utterance of the other party in depth. An interrogative search unit estimates an estimated used interrogative with a text, which is an utterance sentence, as an input, by using a predetermined rule or an estimator that has already learned, the estimated used interrogative being an interrogative related to the text. A candidate utterance sentence generation unit generates each of candidate utterance sentences for the utterance sentence with the text as an input through automatic utterance generation. Based on each of the candidate utterance sentences and an estimation result of the estimated used interrogative, a ranking unit ranks the candidate utterance sentenced, based on the scored.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: June 18, 2024
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Taichi Katayama, Atsushi Otsuka, Ko Mitsuda, Ryuichiro Higashinaka, Junji Tomita
  • Patent number: 12001465
    Abstract: A response selecting apparatus includes a recording part, a document searching part, an information acquiring part, a score calculating part, and a ranking part. The document searching part searches for a question-answer pair from the question-answer pairs recorded in the recording part using the input question as input. The information acquiring part acquires information for quantifying appropriateness of the search-result-question-answer pair with respect to the input question using the input question and the search-result-question-answer pair as input. The score calculating part calculates a score with respect to the input question for each of the search-result-question-answer pairs from a numerical value indicating appropriateness based on a search scheme and a numerical value based on the quantification information.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: June 4, 2024
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Ryuichiro Higashinaka, Masahiro Mizukami, Junji Tomita
  • Patent number: 11989976
    Abstract: A nonverbal information generation apparatus includes a nonverbal information generation unit that generates time-information-stamped nonverbal information that corresponds to time-information-stamped text feature quantities on the basis of the time-information-stamped text feature quantities and a learned nonverbal information generation model. The time-information-stamped text feature quantities are configured to include feature quantities that have been extracted from text and time information representing times assigned to predetermined units of the text. The nonverbal information is information for controlling an expression unit that expresses behavior that corresponds to the text.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: May 21, 2024
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Ryo Ishii, Ryuichiro Higashinaka, Taichi Katayama, Junji Tomita, Nozomi Kobayashi, Kyosuke Nishida
  • Patent number: 11972365
    Abstract: A question generation device includes: generating means which uses a query and a relevant document including an answer to the query as input and, using a machine learning model having been learned in advance, generates a revised query in which a potentially defective portion of the query is supplemented with a word included in a prescribed lexical set.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: April 30, 2024
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Atsushi Otsuka, Kyosuke Nishida, Itsumi Saito, Kosuke Nishida, Hisako Asano, Junji Tomita