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23361 条记录 (耗时 0.039 秒)

    METHOD FOR MASKING UNDESIRABLE DISTURBING NOISES AND VEHICLE
    41.
    发明公开
    METHOD FOR MASKING UNDESIRABLE DISTURBING NOISES AND VEHICLE 审中-公开

    公开(公告)号：US20240282287A1

    公开(公告)日：2024-08-22

    申请号：US18682579

    申请日：2022-07-22

    申请人： MERCEDES-BENZ GROUP AG

    发明人： Thomas KÜPPERS ,  Dirk LIESKE ,  Alexander TREIBER

    IPC分类号： G10K11/175 ,  H03G3/30 ,  H04R3/04

    CPC分类号： G10K11/1752 ,  H03G3/301 ,  H04R3/04 ,  H03G2201/103 ,  H04R2499/13

    摘要： Synthetic noises are generated to mask undesirable disturbing noises arising during the operation of a vehicle. The synthetic noise is generated from an unmodulated synthetic noise to adjust a desired sound characteristic by multiplication with at least one filter and/or amplifier which is dependent on a vehicle parameter. A pitch of all acoustic signals of which the modulated synthetic noise is composed is kept constant during an emission of the modulated synthetic noise. The unmodulated synthetic noise is designed as 1/f noise, and is pre-modulated by at least one static filter before being modulated by the at least one filter and/or amplifier which is dependent on the vehicle parameter.

    Differential audio data compensation
    43.
    发明授权
    Differential audio data compensation 有权

    公开(公告)号：US12069450B2

    公开(公告)日：2024-08-20

    申请号：US18323579

    申请日：2023-05-25

    申请人： EPOS Group A/S

    发明人： Anders Røser Hansen ,  Stig Petri ,  Svend Feldt ,  Poul Peder Hestbek ,  Casper Fynsk ,  Mirjana Adnadjevic

    IPC分类号： H04R3/02 ,  G10K11/178 ,  H04M1/60 ,  H04R1/02

    CPC分类号： H04R3/02 ,  G10K11/17854 ,  H04M1/6033 ,  H04R1/02

    摘要： A method is disclosed, the method comprising obtaining at least one first information indicative of audio data gathered by at least one first microphone, and at least one second information indicative of audio data gathered by at least one second microphone; determining a differential information indicative of one or more differences between at least two pieces of information, wherein the differential information is determined based, at least in part, on the at least one first information and the at least one second information; and compensating of an impact onto the audio data, wherein audio data of the first information and/or the second information is compensated based, at least in part, on the determined differential information. Further, an apparatus, and a system are disclosed.

    Power control for piezo sounder
    44.
    发明授权
    Power control for piezo sounder 有权

    公开(公告)号：US12067967B2

    公开(公告)日：2024-08-20

    申请号：US17058182

    申请日：2019-05-16

    申请人： Carrier Corporation

    发明人： Martin Paul Robotham

    IPC分类号： G10K9/122 ,  G08B3/10 ,  G10K9/12 ,  G10K9/20

    CPC分类号： G10K9/122 ,  G08B3/10 ,  G10K9/12 ,  G10K9/20

    摘要： A notification appliance is disclosed and includes a sound engine that generates sound according to an acoustic pattern and the power control that regulates input voltage to the sound engine that is matched to the acoustic pattern. A method of powering a sounder is also disclosed and includes providing a constant input current and regulating an input voltage to a phase of a sound engine corresponding with an acoustic signal generated by a sound engine.

    Soundproof structure body
    45.
    发明授权
    Soundproof structure body 有权

    公开(公告)号：US12067963B2

    公开(公告)日：2024-08-20

    申请号：US17232770

    申请日：2021-04-16

    申请人： FUJIFILM Corporation

    发明人： Akihiko Ohtsu ,  Shinya Hakuta ,  Yoshihiro Sugawara ,  Shogo Yamazoe

    IPC分类号： G10K11/172 ,  F24F13/24 ,  G10K11/16 ,  B60R13/08

    CPC分类号： G10K11/172 ,  F24F13/24 ,  G10K11/161 ,  B60R13/08

    摘要： In a soundproof structure body including a tubular tube body having an opening portion, and a resonance type soundproof structure, in which a phase difference θ, at an upstream of the resonance type soundproof structure, between a reflected wave in the resonance type soundproof structure and a reflected wave of a transmitted wave transmitted through the resonance type soundproof structure and reflected by the opening portion satisfies Inequation |θ−π|≤π/3 with respect to a resonance frequency of the resonance type soundproof structure. This soundproof structure body can effectively offset a reflected wave from a resonance type soundproof structure body by opening end reflection by appropriately specifying positions of the resonance type soundproof structure and the opening end portion of a duct, a tube line, or the like to improve an absorbance of a single resonance type soundproof structure.

    Rotor noise reduction using signal processing
    47.
    发明授权
    Rotor noise reduction using signal processing 有权

    公开(公告)号：US12065257B2

    公开(公告)日：2024-08-20

    申请号：US18137333

    申请日：2023-04-20

    申请人： Kitty Hawk Corporation

    发明人： Cameron Robertson

    IPC分类号： B64D31/06 ,  B64C29/00 ,  G10K11/175 ,  H02P23/06

    CPC分类号： B64D31/06 ,  B64C29/0025 ,  G10K11/1752 ,  H02P23/06

    摘要： A takeoff location and a landing location are received for an autonomous vertical takeoff and landing (VTOL) vehicle that includes a plurality of rotors. An autonomous and noise-reduced flight trajectory for the autonomous VTOL vehicle is determined based at least in part on the takeoff location, the landing location, a jerk function, and a noise function, including by minimizing the jerk function and minimizing the noise function. A set of one or more desired forces or moments is determined for the autonomous VTOL vehicle based at least in part on autonomous and noise-reduced flight trajectory. A plurality of motor control signals is determined for the plurality of rotors based at least in part on the set of one or more desired forces or moments.

    ACTIVE SOUND GENERATION DEVICE
    49.
    发明公开
    ACTIVE SOUND GENERATION DEVICE 审中-公开

    公开(公告)号：US20240274117A1

    公开(公告)日：2024-08-15

    申请号：US18426380

    申请日：2024-01-30

    申请人： Honda Motor Co., Ltd.

    发明人： Xun WANG ,  Toshio INOUE

    IPC分类号： G10K15/04 ,  B60Q5/00 ,  H04R1/22

    CPC分类号： G10K15/04 ,  B60Q5/00 ,  H04R1/22 ,  H04R2499/13

    摘要： An active sound generation device is proposed to generate a sound effect in a vehicle interior. The active sound generation device includes: a low sampling rate generation part, generating a low sampling rate signal by lowering a sampling rate; a processing frequency setting part, setting the sampling rate of the low sampling rate generation part; a high sampling rate generation part, amplifying a sampling rate of the low sampling rate signal to generate a high sampling rate signal as the sound effect; and a speaker, outputting the sound effect.

    COMPUTER-IMPLEMENTED METHOD FOR GENERATING ANTI-NOISE
    50.
    发明公开
    COMPUTER-IMPLEMENTED METHOD FOR GENERATING ANTI-NOISE 审中-公开

    公开(公告)号：US20240274114A1

    公开(公告)日：2024-08-15

    申请号：US18436614

    申请日：2024-02-08

    申请人： University of Manitoba

    发明人： Young-Jin Cha ,  Alireza Mostafavi

    IPC分类号： G10K11/178

    CPC分类号： G10K11/17823 ,  G10K11/17873 ,  G10K2210/3011 ,  G10K2210/3027 ,  G10K2210/3038 ,  G10K2210/3044

    摘要： A method for generating anti-noise comprises receiving a sound signal representative of ambient sound including noise from a noise source, anti-noise from an anti-noise generator, and propagation noise from environment; processing the sound signal using a deep learning algorithm configured to generate an anti-noise signal to form anti-noise; and outputting the anti-noise signal to the anti-noise generator. The deep learning algorithm features an iterative encoder module forming plural feature maps; an attention module generating plural attention maps respectively based on the feature maps; a recurrent neural network (RNN), with long short-term memory layers receiving the feature map of the final iteration of the encoder module, predicting a future portion of the sound signal and modelling temporal features of the feature map of the final encoder module iteration; and an iterative decoder module mapping the output of the RNN to the anti-noise signal having common dimensions as the sound signal.