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公开(公告)号：US20240430635A1
公开(公告)日：2024-12-26
申请号：US18830143
申请日：2024-09-10
Inventor： Hiromasa OHASHI , Naoya TANAKA , Ryo HIROTA
Abstract: A control device controls sound of a plurality of speakers. The control device includes: a generation unit acquiring image data and generates display image data from the image data by using conversion processing using shape information indicating a shape of a display surface; a display controller displaying a display image on the display surface by using the display image data; a receiver causing a cursor to be superimposed and displayed on the display image and receives position designation related to the plurality of speakers on the display image from a user who has visually recognized the cursor; and an identification unit calculating a position of the cursor from the position designation by referring to a correspondence relationship between the image data before the conversion processing and the display image data after the conversion processing, and identifying the position of the cursor as a position related to the plurality of speakers.
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公开(公告)号：US20200245066A1
公开(公告)日：2020-07-30
申请号：US16751857
申请日：2020-01-24
Inventor： Masanari MIYAMOTO , Hiromasa OHASHI , Naoya TANAKA
Abstract: A sound processing apparatus includes n number of microphones that are disposed correspondingly to n number of persons and that mainly collect sound signals uttered by respective relevant persons, a filter that suppresses crosstalk components included in a talker sound signal collected by a microphone corresponding to at least one talker using the sound signals collected by the n number of microphones, a parameter updater that updates a parameter of the filter for suppressing the crosstalk components and stores an update result in the memory in a case where a predetermined condition including time at which at least one talker talks is satisfied, and a sound output controller that outputs the sound signals, acquired by subtracting the crosstalk components by the filter from the talker sound signals based on the update result, from a speaker.
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公开(公告)号：US20240232312A1
公开(公告)日：2024-07-11
申请号：US18614133
申请日：2024-03-22
Inventor： Teppei FUKUDA , Masanari MIYAMOTO , Naoya TANAKA
IPC: G06F21/32 , G06F21/44 , G10L17/14 , G10L21/0208
CPC classification number: G06F21/32 , G06F21/44 , G10L17/14 , G10L21/0208 , G06F2221/2137
Abstract: An authentication device includes an acquisition unit configured to acquire a voice signal of a speaker; a detection unit configured to detect a first utterance period during which the speaker is speaking; and an authentication unit configured to authenticate the speaker based on a comparison between a voice signal of the first utterance period and a database. The detection unit detects a second utterance period different from the first utterance period when the authentication unit determines that the speaker authentication is impossible, and the authentication unit authenticates the speaker based on a comparison between the voice signal of the first utterance period and a voice signal of the second utterance period, and the database.
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公开(公告)号：US20210043198A1
公开(公告)日：2021-02-11
申请号：US16979714
申请日：2018-12-11
Inventor： Naoya TANAKA , Tomofumi YAMANASHI , Masanari MIYAMOTO
Abstract: This voice processing device is provided with: an utterer's position detection unit which specifies, as position microphones of an utterer, microphones that receive a voice signal of WuW on the basis of the characteristics of each voice signal for a prescribed time, when the WuW voice is detected, the voice signal being held in a voice signal buffer unit; and a CTC unit (one example of a voice processing unit) which outputs a voice uttered by the utterer and suppress a voice uttered by an occupant, who is not the utterer, by using the voice signal for the prescribed time, which is held in the voice signal buffer unit, and information relating to the utterer's position microphones.
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公开(公告)号：US20180259613A1
公开(公告)日：2018-09-13
申请号：US15762299
申请日：2016-08-24
Inventor： Keiji HIRATA , Naoya TANAKA
CPC classification number: G01S3/8083 , G01S3/802 , G01S3/8022 , G01S3/808 , G01S5/20 , G01S15/42 , H04N5/2252 , H04N5/23206 , H04N5/23218 , H04N5/23238 , H04N5/23293 , H04N5/232945 , H04N5/23296 , H04N5/23299 , H04R1/406 , H04R3/005 , H04R2201/401
Abstract: An object detection device includes a microphone array that includes a plurality of non-directional microphones, and a processor that processes first sound data obtained by collecting sounds by the microphone array. The processor generates a plurality of items of second sound data having directivity in an arbitrary direction by sequentially changing a directivity direction based on the first sound data, and analyzes a sound pressure level and a frequency component of the second sound data, and determines that an object exists in a first direction in a case where a sound pressure level of a specific frequency, which is included in the frequency component of the second sound data having directivity in the first direction of the arbitrary direction, is equal to or larger than a first prescribed value.
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Patent Agency Ranking
公开(公告)号：US20180158446A1
公开(公告)日：2018-06-07
申请号：US15572047
申请日：2016-04-19
Inventor： Masanari MIYAMOTO , Hiroyuki MATSUMOTO , Ryouichi YUGE , Shintaro YOSHIKUNI , Toshimichi TOKUDA , Naoya TANAKA
CPC classification number: G10K11/17827 , G01S3/80 , G01S3/8083 , G10K11/17885 , G10K11/346 , G10K2210/102 , G10K2210/12 , G10K2210/3045 , H04N5/225 , H04N7/183 , H04R1/406 , H04R3/005 , H04R3/12 , H04R27/00 , H04R29/002 , H04R2430/01 , H04R2430/23 , H04R2499/11
Abstract: In a directionality control system, a camera device captures a video of image capture area (SA). A microphone array device collects a sound in image capture area (SA). A signal processing section detects a sound source of the sound in image capture area (SA) which is collected by the microphone array device. In a case where the detected sound source is within a range of privacy area (PRA), an output control section controls the sound in image capture area (SA) which is collected by the microphone array device and is output from speaker device (37).
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公开(公告)号：US20170223454A1
公开(公告)日：2017-08-03
申请号：US15485434
申请日：2017-04-12
Inventor： Junji ARAKI , Hiromasa OHASHI , Naoya TANAKA
Abstract: A howling removing apparatus according to the present disclosure is a howling removing apparatus to be connected to a microphone and a speaker. The howling removing apparatus includes: a nonlinear converter that nonlinearly converts a sound signal input to the speaker and outputs a nonlinear signal; a delay unit that delays the sound signal by a fixed time and outputs a delay signal; a norm calculator that calculates a norm from the delay signal; a filter coefficient generator that, based on the nonlinear signal, the delay signal and the norm, generates an adaptive filter that simulates a transfer characteristic of a space where the sound signal is reproduced from the speaker and is returned to the microphone; a cancel signal generator that convolves the delay signal and the adaptive filter with each other and generates a cancel signal; and a subtracter that subtracts the cancel signal from the sound signal. When an average sound pressure level of the sound signal exceeds a threshold value, the filter coefficient generator initializes the adaptive filter, thereby sensing oscillation of the adaptive filter even when a positional relationship between the microphone and the speaker is dynamically changed, and returning an output to normal.
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公开(公告)号：US20240005919A1
公开(公告)日：2024-01-04
申请号：US18370162
申请日：2023-09-19
Inventor： Naoya TANAKA , Tomofumi YAMANASHI , Masanari MIYAMOTO
CPC classification number: G10L15/20 , B60R11/0217 , B60R11/0247 , B60R2011/0005 , G10L15/30 , H04R1/025 , G10L15/10
Abstract: A voice processing device includes plural microphones arranged so as to correspond to a plurality of positions. The voice processing device includes at least one memory that stores instructions and voice signals from the plural microphones, and a processor. The voice signals collected by the plural microphones, respectively, during a prescribed period before a present time, are repeatedly stored in the at least one memory as buffered voice signals. The processor detects whether a prescribed word is uttered by a speaker based on the voice signals collected by the plural microphones, determines a microphone corresponding to the speaker by referring to the buffered voice signals, and suppresses the voice signals collected by the plural microphones other than the microphone corresponding to the speaker.
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公开(公告)号：US20230037195A1
公开(公告)日：2023-02-02
申请号：US17967471
申请日：2022-10-17
Inventor： Hiromasa OHASHI , Naoya TANAKA , Ryo HIROTA
Abstract: A control device controls sound of a plurality of speakers. The control device includes: a generation unit acquiring image data and generates display image data from the image data by using conversion processing using shape information indicating a shape of a display surface; a display controller displaying a display image on the display surface by using the display image data; a receiver causing a cursor to be superimposed and displayed on the display image and receives position designation related to the plurality of speakers on the display image from a user who has visually recognized the cursor; and an identification unit calculating a position of the cursor from the position designation by referring to a correspondence relationship between the image data before the conversion processing and the display image data after the conversion processing, and identifying the position of the cursor as a position related to the plurality of speakers.
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公开(公告)号：US20200007690A1
公开(公告)日：2020-01-02
申请号：US16489897
申请日：2018-01-29
Inventor： Masanari MIYAMOTO , Hiromasa OHASHI , Naoya TANAKA
Abstract: A microphone picks-up voice of a driver. A first echo suppression unit outputs a voice signal after first echo suppression based on a voice signal of the driver and a voice signal after echo suppression in the past (first reference signal) stored in a buffer memory. A second echo suppression unit outputs a voice signal after second echo suppression based on a voice signal of the driver and a voice signal after the echo suppression in the past (second reference signal) stored in a buffer memory. An output signal selector selects one of the voice signals after the first echo suppression or the voice signal after the second echo suppression according to a detection result of the presence or absence of a system variation by a system variation detector, and causes a speaker to output the selected voice signal.
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