Patents by Inventor Takayuki Arakawa
Takayuki Arakawa 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).
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Patent number: 11977617Abstract: Provided is to prevent a false determination due to an attachment condition of an apparatus that transmits and receives an acoustic signal, and perform accurate personal authentication. A personal authentication device includes: a personal authentication means that authenticates an individual by using first information at least including an acoustic characteristic calculated from an acoustic signal propagating through the head of the user, which is detected by an apparatus being attached on a head of a user for transmitting and receiving the acoustic signal, and a feature amount extracted from the acoustic characteristic; an attachment trouble rule storage means that stores an attachment trouble rule for detecting an attachment trouble with the apparatus; and an attachment trouble detection means that detects a trouble with an attachment state of the apparatus when the first information satisfies the attachment trouble rule.Type: GrantFiled: November 29, 2022Date of Patent: May 7, 2024Assignee: NEC CORPORATIONInventors: Takayuki Arakawa, Takafumi Koshinaka
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Patent number: 11976729Abstract: A shaft sealing structure includes a plurality of V-packings that are stacked in multiple stages, and each of the V-packings is formed of a thick-walled annular top portion, a thin-walled inner side skirt portion, and a thin-walled outer side skirt portion. Adjacent ones of the top portions abut against each other, adjacent ones of the inner side skirt portions do not interfere with each other, and adjacent ones of the outer side skirt portions do not interfere with each other.Type: GrantFiled: March 21, 2022Date of Patent: May 7, 2024Assignee: SMC CORPORATIONInventors: Takayuki Murai, Takashi Arakawa
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Publication number: 20240125389Abstract: A shaft sealing structure includes a V-packing; a first guide bush attached to an inner circumference of the holder; and a scraper arranged at an end of the holder. The V-packing is formed of a thick-walled top portion, a thin-walled inner side skirt portion extending diagonally inward from the top portion, and a thin-walled outer side skirt portion extending diagonally outward from the top portion. The inner side skirt portion slidably contacts an outer surface of the rod at a distal end of the inner side skirt portion, and the outer side skirt portion abuts against an inner surface of the holder at a distal end of the outer side skirt portion. The top portion is sandwiched between the scraper and the first guide bush, and the inner and outer side skirt portions are freely deformable inside a space formed between the first guide bush and the scraper.Type: ApplicationFiled: December 22, 2023Publication date: April 18, 2024Applicant: SMC CORPORATIONInventors: Takayuki MURAI, Takashi ARAKAWA
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Patent number: 11937040Abstract: Provided is an information processing device comprising an acquisition unit configured to acquire acoustic characteristics in a frequency domain based on a sound wave propagating in a head of a user and an extracting unit configured to generate a first frequency response function having a rational polynomial equation to extract feature quantity used for biometric authentication of the user based on the first frequency response function, the rational polynomial equation including terms indicating feature of a peak of the acoustic characteristics in a denominator and terms indicating feature of a notch of the acoustic characteristics in a numerator.Type: GrantFiled: September 12, 2019Date of Patent: March 19, 2024Assignee: NEC CORPORATIONInventors: Yoshitaka Ito, Takayuki Arakawa
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Publication number: 20240080605Abstract: Provided is an information processing device including an acoustic information acquisition unit configured to acquire an acoustic information about a resonance in a body of a user wearing a wearable device and a wearing determination unit configured to determine whether or not the user wears the wearable device based on the acoustic information.Type: ApplicationFiled: November 14, 2023Publication date: March 7, 2024Applicant: NEC CorporationInventor: Takayuki Arakawa
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Publication number: 20240045938Abstract: Provided is to prevent a false determination due to an attachment condition of an apparatus that transmits and receives an acoustic signal, and perform accurate personal authentication. A personal authentication device includes: a personal authentication means that authenticates an individual by using first information at least including an acoustic characteristic calculated from an acoustic signal propagating through the head of the user, which is detected by an apparatus being attached on a head of a user for transmitting and receiving the acoustic signal, and a feature amount extracted from the acoustic characteristic; an attachment trouble rule storage means that stores an attachment trouble rule for detecting an attachment trouble with the apparatus; and an attachment trouble detection means that detects a trouble with an attachment state of the apparatus when the first information satisfies the attachment trouble rule.Type: ApplicationFiled: October 6, 2023Publication date: February 8, 2024Applicant: NEC CorporationInventors: Takayuki ARAKAWA, Takafumi Koshinaka
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Patent number: 11895455Abstract: Provided is an information processing device including an acoustic information acquisition unit configured to acquire an acoustic information about a resonance in a body of a user wearing a wearable device and a wearing determination unit configured to determine whether or not the user wears the wearable device based on the acoustic information.Type: GrantFiled: December 19, 2018Date of Patent: February 6, 2024Assignee: NEC CORPORATIONInventor: Takayuki Arakawa
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Publication number: 20240038241Abstract: A biometric authentication device is provided with: a replay unit for reproducing a sound; an ear authentication unit for acquiring a reverberation sound of the sound in an ear of a user to be authenticated, extracting an ear acoustic feature from the reverberation sound, and calculating an ear authentication score by comparing the extracted ear acoustic feature with an ear acoustic feature stored in advance; a voice authentication unit for extracting a talker feature from a voice of the user that has been input, and calculating a voice authentication score by comparing the extracted talker feature with a talker feature stored in advance; and an authentication integration unit for outputting an authentication integration result calculated based on the ear authentication score and the voice authentication score. After the sound is output into the ear, a recording unit inputs the voice of the user.Type: ApplicationFiled: October 10, 2023Publication date: February 1, 2024Applicant: NEC CorporationInventors: Koji OKABE, Takayuki ARAKAWA, Takafumi KOSHINAKA
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Publication number: 20240038240Abstract: A biometric authentication device is provided with: a replay unit for reproducing a sound; an ear authentication unit for acquiring a reverberation sound of the sound in an ear of a user to be authenticated, extracting an ear acoustic feature from the reverberation sound, and calculating an ear authentication score by comparing the extracted ear acoustic feature with an ear acoustic feature stored in advance; a voice authentication unit for extracting a talker feature from a voice of the user that has been input, and calculating a voice authentication score by comparing the extracted talker feature with a talker feature stored in advance; and an authentication integration unit for outputting an authentication integration result calculated based on the ear authentication score and the voice authentication score. After the sound is output into the ear, a recording unit inputs the voice of the user.Type: ApplicationFiled: October 10, 2023Publication date: February 1, 2024Applicant: NEC CorporationInventors: Koji OKABE, Takayuki ARAKAWA, Takafumi KOSHINAKA
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Publication number: 20240037204Abstract: Provided is to prevent a false determination due to an attachment condition of an apparatus that transmits and receives an acoustic signal, and perform accurate personal authentication. A personal authentication device includes: a personal authentication means that authenticates an individual by using first information at least including an acoustic characteristic calculated from an acoustic signal propagating through the head of the user, which is detected by an apparatus being attached on a head of a user for transmitting and receiving the acoustic signal, and a feature amount extracted from the acoustic characteristic; an attachment trouble rule storage means that stores an attachment trouble rule for detecting an attachment trouble with the apparatus; and an attachment trouble detection means that detects a trouble with an attachment state of the apparatus when the first information satisfies the attachment trouble rule.Type: ApplicationFiled: October 6, 2023Publication date: February 1, 2024Applicant: NEC CorporationInventors: Takayuki ARAKAWA, Takamufi KOSHINAKA
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Publication number: 20240038243Abstract: A biometric authentication device is provided with: a replay unit for reproducing a sound; an ear authentication unit for acquiring a reverberation sound of the sound in an ear of a user to be authenticated, extracting an ear acoustic feature from the reverberation sound, and calculating an ear authentication score by comparing the extracted ear acoustic feature with an ear acoustic feature stored in advance; a voice authentication unit for extracting a talker feature from a voice of the user that has been input, and calculating a voice authentication score by comparing the extracted talker feature with a talker feature stored in advance; and an authentication integration unit for outputting an authentication integration result calculated based on the ear authentication score and the voice authentication score. After the sound is output into the ear, a recording unit inputs the voice of the user.Type: ApplicationFiled: October 10, 2023Publication date: February 1, 2024Applicant: NEC CorporationInventors: Koji OKABE, Takayuki Arakawa, Takafumi Koshinaka
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Publication number: 20240038242Abstract: A biometric authentication device is provided with: a replay unit for reproducing a sound; an ear authentication unit for acquiring a reverberation sound of the sound in an ear of a user to be authenticated, extracting an ear acoustic feature from the reverberation sound, and calculating an ear authentication score by comparing the extracted ear acoustic feature with an ear acoustic feature stored in advance; a voice authentication unit for extracting a talker feature from a voice of the user that has been input, and calculating a voice authentication score by comparing the extracted talker feature with a talker feature stored in advance; and an authentication integration unit for outputting an authentication integration result calculated based on the ear authentication score and the voice authentication score. After the sound is output into the ear, a recording unit inputs the voice of the user.Type: ApplicationFiled: October 10, 2023Publication date: February 1, 2024Applicant: NEC CorporationInventors: Koji Okabe, Takayuki Arakawa, Takafumi Koshinaka
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Publication number: 20240037203Abstract: Provided is to prevent a false determination due to an attachment condition of an apparatus that transmits and receives an acoustic signal, and perform accurate personal authentication. A personal authentication device includes: a personal authentication means that authenticates an individual by using first information at least including an acoustic characteristic calculated from an acoustic signal propagating through the head of the user, which is detected by an apparatus being attached on a head of a user for transmitting and receiving the acoustic signal, and a feature amount extracted from the acoustic characteristic; an attachment trouble rule storage means that stores an attachment trouble rule for detecting an attachment trouble with the apparatus; and an attachment trouble detection means that detects a trouble with an attachment state of the apparatus when the first information satisfies the attachment trouble rule.Type: ApplicationFiled: October 6, 2023Publication date: February 1, 2024Applicant: NEC CorporationInventors: Takayuki ARAKAWA, Takafumi KOSHINAKA
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Publication number: 20230409688Abstract: Provided is a personal authentication device capable of simply securing security with little psychological and physical burden of a user to be authenticated.Type: ApplicationFiled: June 30, 2023Publication date: December 21, 2023Applicant: NEC CORPORATIONInventors: Takafumi Koshinaka, Masahiro Saikou, Takayuki Arakawa
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VOICE INPUT/OUTPUT APPARATUS, HEARING AID, VOICE INPUT/OUTPUT METHOD, AND VOICE INPUT/OUTPUT PROGRAM
Publication number: 20230353953Abstract: By performing both noise cancellation and echo cancellation, a high-quality main voice signal is generated. A voice input/output apparatus includes a noise acquirer that is arranged toward an outside of a body of a user and acquires external noise arriving from the outside of the user, a voice output unit that accepts an input of a voice signal and outputs a voice to an ear canal of the user, a main voice acquirer that acquires a mixed voice, in which the external noise, the output voice, and a main voice of the user transmitted from a vocal cord of the user through the ear canal are mixed, and outputs a mixed voice signal, a noise canceler that processes the mixed voice signal using a noise signal based on the external noise, and an echo canceler that processes the mixed voice signal using the voice signal.Type: ApplicationFiled: July 11, 2023Publication date: November 2, 2023Applicant: NEC CORPORATIONInventors: Kouji OOSUGI, Takayuki ARAKAWA, Akihiko SUGIYAMA, Ryoji MIYAHARA -
Publication number: 20230301232Abstract: A lawn mower includes a first blade having a first tip, and a second blade having a second tip, wherein the first blade and the second blade are disposed adjacent to each other, and a rotation direction of the first blade is different from a rotation direction of the second blade, wherein, in a lateral direction of the lawn mower, a guide plate is disposed between a rotation center of the first blade and a rotation center of the second blade, and the guide plate is disposed above the second blade, and the guide plate extends toward a rear of the lawn mower.Type: ApplicationFiled: March 24, 2022Publication date: September 28, 2023Applicant: Honda Motor Co., Ltd.Inventors: Takayuki ARAKAWA, Norikazu SHIMIZU, Hiroshi HOJO, Sotaro FURUTA, Susumu OKUBO
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Voice input/output apparatus, hearing aid, voice input/output method, and voice input/output program
Patent number: 11743662Abstract: By performing both noise cancellation and echo cancellation, a high-quality main voice signal is generated. A voice input/output apparatus includes a noise acquirer that is arranged toward an outside of a body of a user and acquires external noise arriving from the outside of the user, a voice output unit that accepts an input of a voice signal and outputs a voice to an ear canal of the user, a main voice acquirer that acquires a mixed voice, in which the external noise, the output voice, and a main voice of the user transmitted from a vocal cord of the user through the ear canal are mixed, and outputs a mixed voice signal, a noise canceler that processes the mixed voice signal using a noise signal based on the external noise, and an echo canceler that processes the mixed voice signal using the voice signal.Type: GrantFiled: December 16, 2019Date of Patent: August 29, 2023Assignees: NEC CORPORATION, NEC Platforms, Ltd.Inventors: Kouji Oosugi, Takayuki Arakawa, Akihiko Sugiyama, Ryoji Miyahara -
Patent number: 11734399Abstract: Provided is a personal authentication device capable of simply securing security with little psychological and physical burden of a user to be authenticated.Type: GrantFiled: September 11, 2017Date of Patent: August 22, 2023Assignee: NEC CORPORATIONInventors: Takafumi Koshinaka, Masahiro Saikou, Takayuki Arakawa
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Publication number: 20230144059Abstract: A work machine comprising: a blade; a blade housing; and a guard pole portion provided below the blade, wherein the guard pole portion is supported by the blade housing, and the guard pole portion includes an inclined portion extending in an oblique direction with respect to a machine body longitudinal direction of the work machine.Type: ApplicationFiled: October 28, 2022Publication date: May 11, 2023Inventors: Takayuki ARAKAWA, Hiroshi HOJO, Norikazu SHIMIZU, Sotaro FURUTA, Susumu OKUBO
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Publication number: 20230091735Abstract: Provided is to prevent a false determination due to an attachment condition of an apparatus that transmits and receives an acoustic signal, and perform accurate personal authentication. A personal authentication device includes: a personal authentication means that authenticates an individual by using first information at least including an acoustic characteristic calculated from an acoustic signal propagating through the head of the user, which is detected by an apparatus being attached on a head of a user for transmitting and receiving the acoustic signal, and a feature amount extracted from the acoustic characteristic; an attachment trouble rule storage means that stores an attachment trouble rule for detecting an attachment trouble with the apparatus; and an attachment trouble detection means that detects a trouble with an attachment state of the apparatus when the first information satisfies the attachment trouble rule.Type: ApplicationFiled: November 29, 2022Publication date: March 23, 2023Applicant: NEC CorporationInventors: Takayuki ARAKAWA, Takafumi KOSHINAKA