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    Signal processing apparatus, method, and program
    14.
    发明授权
    Signal processing apparatus, method, and program 有权

    公开(公告)号：US11024280B2

    公开(公告)日：2021-06-01

    申请号：US16880662

    申请日：2020-05-21

    Applicant: Sony Corporation

    Inventor： Tetsunori Itabashi ,  Kohei Asada ,  Shigetoshi Hayashi ,  Kenichi Makino ,  Kazuma Yoshii

    IPC: G10K11/178 ,  G10L21/0208 ,  H04R1/10 ,  B60R11/02 ,  B60R16/02

    Abstract: A signal processing apparatus includes a signal processor configured to: generate a first noise reduction signal using an adaptive filter based on a signal output from a first input apparatus, and cause the generated first noise reduction signal to be output by a first output apparatus; and generate a second noise reduction signal using a feedback filter based on a signal output from a second input apparatus, and cause the generated second noise reduction signal to be output by a second output apparatus. The feedback filter has a fixed feedback coefficient. The first input apparatus is located at a first noise-cancellation target location in an environment, and the second input apparatus is located at a second noise-cancellation target location in the environment, which may be different from the first noise-cancellation target location.

    SOUND PROCESSING DEVICE, SOUND PROCESSING METHOD, AND COMPUTER PROGRAM
    15.
    发明申请
    SOUND PROCESSING DEVICE, SOUND PROCESSING METHOD, AND COMPUTER PROGRAM 审中-公开

    公开(公告)号：US20190266991A1

    公开(公告)日：2019-08-29

    申请号：US16307623

    申请日：2017-04-18

    Applicant: Sony Corporation

    Inventor： Shigetoshi Hayashi ,  Kohei Asada ,  Tetsunori Itabashi ,  Kazuma Yoshii ,  Mitsuhiro Suzuki ,  Shinpei Tsuchiya ,  Yushi Yamabe

    IPC: G10K11/178 ,  H04R1/10

    Abstract: [Object] To provide a sound processing device capable of effectively reducing ambient noise at low cost.[Solution] Provided is a sound processing device including: a first sound collector configured to collect a first noise signal from a noise source of noise leaking into a casing mounted to a user's ear; a first signal processing unit configured to form a first noise reduction signal used to reduce noise at a cancellation point on the basis of the first noise signal; a second signal processing unit configured to form a second noise reduction signal used to reduce noise at a cancellation point with respect to a first pseudo noise signal; an adder configured to add the first noise reduction signal and the second noise reduction signal; and a sound emitter configured to emit an output of the adder into the casing as sound. The first pseudo noise signal is a signal obtained by subtracting an output of the adder applied with a simulation transfer characteristic from an output of the first sound collector, the simulation transfer characteristic being obtained by simulating a transfer characteristic from the sound emitter to the first sound collector.

    Audio processing device and audio processing method
    16.
    发明授权
    Audio processing device and audio processing method 有权

    公开(公告)号：US11445289B2

    公开(公告)日：2022-09-13

    申请号：US16644287

    申请日：2018-06-22

    Applicant: SONY CORPORATION

    Inventor： Go Igarashi ,  Shigetoshi Hayashi ,  Naoki Shinmen ,  Kohei Asada

    IPC: H04R1/10 ,  G10L21/0208 ,  G10L21/0272 ,  H04R3/04 ,  H04R5/033 ,  H04R5/04

    Abstract: [Problem] To propose a mechanism capable of performing a noise cancellation process in an ear hole opening type audio processing device. [Solution] An audio processing device including: an audio information acquisition unit that acquires audio information; a holding unit that abuts on a cavum concha or an inner wall of an ear canal and holds the audio information acquisition unit in a space closer to an eardrum side than a tragus, in a state of being worn by a user; an opening portion that opens an ear hole to an outside; and a signal processing unit that generates a noise cancellation signal based on the audio information acquired by the audio information acquisition unit.

    Acoustic device
    17.
    发明授权
    Acoustic device 有权

    公开(公告)号：US11178488B2

    公开(公告)日：2021-11-16

    申请号：US16772733

    申请日：2018-12-10

    Applicant: Sony Corporation

    Inventor： Ryutaro Watanabe ,  Toru Nakagawa ,  Tetsunori Itabashi ,  Shigetoshi Hayashi ,  Toru Chinen ,  Asaya Hondo ,  Satoko Kitagawa

    IPC: H04R5/02 ,  H04S7/00 ,  H04R1/02

    Abstract: The present invention is directed to reducing influence of crosstalk components by appropriately blocking a propagation path of the crosstalk components output from speakers that reproduce signals for right and left ears respectively.
    Provided is a contact member used in contact with a back and/or a back of a head of a listener. The contact member is installed with: a first speaker that reproduces a signal for the left ear and a second speaker that reproduces a signal for the right ear; and a propagation obstruction adapted to block a propagation path of crosstalk components output from the respective speakers.

    ACOUSTIC DEVICE
    18.
    发明申请
    ACOUSTIC DEVICE 有权

    公开(公告)号：US20210227326A1

    公开(公告)日：2021-07-22

    申请号：US16772733

    申请日：2018-12-10

    Applicant: Sony Corporation

    Inventor： Ryutaro Watanabe ,  Toru Nakagawa ,  Tetsunori Itabashi ,  Shigetoshi Hayashi ,  Toru Chinen ,  Asaya Hondo ,  Satoko Kitagawa

    IPC: H04R5/02 ,  H04R1/02 ,  H04S7/00

    Abstract: The present invention is directed to reducing influence of crosstalk components by appropriately blocking a propagation path of the crosstalk components output from speakers that reproduce signals for right and left ears respectively.
    Provided is a contact member used in contact with a back and/or a back of a head of a listener. The contact member is installed with: a first speaker that reproduces a signal for the left ear and a second speaker that reproduces a signal for the right ear; and a propagation obstruction adapted to block a propagation path of crosstalk components output from the respective speakers.

    SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, AND PROGRAM
    20.
    发明申请
    SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, AND PROGRAM 审中-公开

    公开(公告)号：US20180115818A1

    公开(公告)日：2018-04-26

    申请号：US15565524

    申请日：2016-03-02

    Applicant: Sony Corporation

    Inventor： Kohei Asada ,  Yushi Yamabe ,  Shigetoshi Hayashi

    IPC: H04R1/10 ,  G10L21/0208 ,  H04R1/22

    CPC classification number: H04R1/1091 ,  G10K11/17837 ,  G10K11/17881 ,  G10K2210/1081 ,  G10K2210/3014 ,  G10L21/0208 ,  H04R1/1083 ,  H04R1/22 ,  H04R3/04

    Abstract: [Object] To allow a listener to listen to ambient sounds of the external environment in an appropriate manner while wearing a head mounted acoustic device.[Solution] Provided is a signal processing device including a first acquiring unit configured to acquire a sound collection result for a first sound propagating in an external space, a second acquiring unit configured to acquire a sound collection result for a second sound propagating in an internal space, a first filter processing unit configured to generate a difference signal which is substantially equal to a difference between the first sound propagating directly from the external space toward the inside of the external ear canal and the first sound propagating from the external space to the internal space via the mounting unit on the basis of the sound collection result for the first sound, a subtracting unit configured to generate a subtraction signal obtained by subtracting a first signal component based on the sound collection result for the first sound and a second signal component based on an input acoustic signal from the sound collection result for the second sound, a second filter processing unit configured to generate a noise reduction signal based on the subtraction signal, and an adding unit configured to add the difference signal and the noise reduction signal to the input acoustic signal and generate a drive signal.

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