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1.发明申请公开(公告)号：US20220148617A1
公开(公告)日：2022-05-12
申请号：US17433694
申请日：2019-02-28
Applicant: NEC Corporation
Inventor： Takayuki ARAKAWA
Abstract: An emotion estimation apparatus 1 includes: a generation unit 2 configured to generate acoustic characteristic information indicating an acoustic characteristic using a first acoustic signal output to the ear canal and a second acoustic signal produced by the first acoustic signal echoing inside the body; and an estimation unit 3 configured to estimate emotion using the acoustic characteristic information.
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2.发明申请公开(公告)号：US20210392445A1
公开(公告)日：2021-12-16
申请号：US17417491
申请日：2019-12-16
Applicant: NEC Corporation , NEC Platforms, Ltd.
Inventor： Kouji OOSUGI , Takayuki ARAKAWA , Akihiko SUGIYAMA , Ryoji MIYAHARA
IPC: H04R25/00 , G10L21/0208
Abstract: 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.
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3.发明公开公开(公告)号：US20240232311A1
公开(公告)日：2024-07-11
申请号：US18611775
申请日：2024-03-21
Applicant: NEC Corporation
Inventor： Takafumi KOSHINAKA , Masahiro SAIKOU , Takayuki ARAKAWA
CPC classification number: G06F21/32 , A61B5/117 , H04L63/0861 , H04S7/304 , G06F2221/2117 , G07C9/37 , H04W12/065 , H04W12/65
Abstract: Provided is a personal authentication device capable of simply securing security with little psychological and physical burden of a user to be authenticated. Personal authentication device includes: transmission unit that transmits a first acoustic signal to a user's head; observation unit that observes a second acoustic signal after the first acoustic signal propagation; calculation unit that calculates acoustic characteristics from the first and the second acoustic signal; extraction unit that extracts a feature amount related to a user from the acoustic characteristics; storage control unit that registers the feature amount in the storage unit; identification unit that identifies the user by collating the first feature amount with a second feature amount; and storage unit stores the first feature amount, wherein while identification unit identifies the user as being identical, transmission unit transmits the first acoustic signal every predetermined interval.
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公开(公告)号：US20230007418A1
公开(公告)日：2023-01-05
申请号：US17782726
申请日：2019-12-13
Applicant: NEC Corporation
Inventor： Takayuki ARAKAWA , Yoshitaka ITO
IPC: H04R29/00
Abstract: [Problem] To evaluate, easily and at low cost, the performance of an earphone device used for ear acoustic certification.
[Solution] Holes are provided in a plurality of plate-shaped members (201), an artificial eardrum member (202) corresponds to the eardrum of an individual, and the holes provided in each of the plurality of plate-shaped members (201) are connected, whereby the plurality of plate-shaped members (201) are layered over the artificial eardrum member (202) so as to simulate the external auditory canal of the individual.-
公开(公告)号：US20220392472A1
公开(公告)日：2022-12-08
申请号：US17761643
申请日：2019-09-27
Applicant: NEC Corporation
Inventor： Takayuki ARAKAWA
IPC: G10L21/0216 , G10L21/028 , G10L25/78
Abstract: An audio signal processing device comprises: a determination unit that determines a first voice segment for a target speaker linked to a host device on the basis of an externally acquired first audio signal; a sharing unit that transmits the first audio signal and the first voice segment to another device linked to a non-target speaker and receives a second audio signal and a second voice segment associated with the non-target speaker from the other device; an estimation unit that estimates the voice of the non-target speaker mixed in the first audio signal on the basis of the second audio signal and the second voice segment that are received and an estimation parameter associated with the target speaker that is acquired; and a removal unit that removes the voice of the non-target speaker from the first audio signal.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20220142605A1
公开(公告)日：2022-05-12
申请号：US17431521
申请日：2019-02-28
Applicant: NEC Corporation
Inventor： Takayuki ARAKAWA
Abstract: A state estimation apparatus 1 includes: a generation unit 2 configured to generate acoustic characteristic information indicating an acoustic characteristic using a first acoustic signal output to the ear canal and a second acoustic signal produced by the first acoustic signal echoing inside the body; and an estimation unit 3 configured to estimate the state of the vocal tract and the state of the respiratory tract using the acoustic characteristic information.
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公开(公告)号：US20240045938A1
公开(公告)日：2024-02-08
申请号：US18482245
申请日：2023-10-06
Applicant: NEC Corporation
Inventor： Takayuki ARAKAWA , Takafumi Koshinaka
IPC: G06F21/32 , H04R1/10 , H04R3/00 , A61B5/1171 , G06F21/34 , G10L17/02 , G10L19/02 , G10L25/06 , G10L25/51 , H04R1/26 , H04R1/46
CPC classification number: G06F21/32 , H04R1/10 , H04R3/00 , A61B5/1171 , G06F21/34 , H04R1/1041 , G10L17/02 , G10L19/02 , G10L25/06 , G10L25/51 , H04R1/1091 , H04R1/26 , H04R1/46
Abstract: 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.
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8.发明公开公开(公告)号：US20240038240A1
公开(公告)日：2024-02-01
申请号：US18483843
申请日：2023-10-10
Applicant: NEC Corporation
Inventor： Koji OKABE , Takayuki ARAKAWA , Takafumi KOSHINAKA
Abstract: 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.
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公开(公告)号：US20220329590A1
公开(公告)日：2022-10-13
申请号：US17848647
申请日：2022-06-24
Applicant: NEC Corporation
Inventor： Takayuki ARAKAWA
IPC: H04L9/40
Abstract: The present invention reduces the risk of user biometric information being leaked to a third party. A biometric authentication device (820) receives an echo signal (response signal) from a client device. The echo signal is formed as a result of an inspection signal being applied to an authentication subject by a client device, and the inspection signal being transmitted into the body or to the surface of the body of the authentication subject and changing into the echo signal. The biometric authentication device (820) comprises: an inspection signal generation unit (821) that generates the same inspection signal as the client device; a transmission characteristic calculation unit (823) that calculates, from the inspection signal and the echo signal, a transmission characteristic of the authentication subject; and an authentication unit (824) that authenticates the authentication subject by comparing a preregistered first transmission characteristic and a calculated second transmission characteristic.
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公开(公告)号：US20220295170A1
公开(公告)日：2022-09-15
申请号：US17639980
申请日：2019-09-12
Applicant: NEC Corporation
Inventor： Yoshitaka ITO , Takayuki ARAKAWA
Abstract: 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.
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