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    SILENCING DEVICE AND REFRIGERATING AND FREEZING DEVICE
    1.
    发明公开
    SILENCING DEVICE AND REFRIGERATING AND FREEZING DEVICE 审中-公开

    公开(公告)号：EP4438980A1

    公开(公告)日：2024-10-02

    申请号：EP22897498.6

    申请日：2022-10-24

    申请人： Qingdao Haier Refrigerator Co., Ltd. ,  Haier Smart Home Co., Ltd.

    发明人： WAN, Yanbin ,  CHEN, Jianquan ,  WANG, Haijuan ,  CAI, Wenjing ,  LIU, Yang

    IPC分类号： F25D23/00 ,  G10K11/16

    CPC分类号： F25D23/00 ,  G10K11/16 ,  G10K11/175

    摘要： A muffling device and refrigerating and freezing apparatus. The muffling device, comprising a muffling body, the muffling body having a sound ingress and egress surface, at least one muffling chamber is provided inside the muffling body , the sound ingress and egress surface is provided with at least one communication port, each of the communication port connecting one or more of the muffling chamber, each of the muffling chamber is connected to the outside of the sound ingress and egress surface through at least one of the communication port. In the muffling device and refrigerating and freezing apparatus, when noise passes through the through-holes of the muffling device, the sound is transmitted through the communication ports into the muffling chamber, extending the sound propagation path, weakening the sound energy, and thereby reducing the sound that continues to disperse outward. Specifically, the length of at least one muffling chamber is between 0.0085m to 0.85m. The length of the muffling chamber is set so that the incident sound waves and reflected sound waves at the communication ports of the muffling chamber overlap, with the amplitudes being as equal as possible and the phases being inverted by 180° as much as possible, thus maximizing the cancellation of sound waves to achieve the purpose of muffling or noise reduction.

    Active noise reduction
    3.
    发明授权
    Active noise reduction 有权

    公开(公告)号：EP2667379B1

    公开(公告)日：2018-07-25

    申请号：EP12168685.1

    申请日：2012-05-21

    申请人： Harman Becker Automotive Systems GmbH

    发明人： Christoph, Markus

    IPC分类号： G10K11/178

    CPC分类号： G10K11/178 ,  G10K11/175 ,  G10K2210/1081 ,  G10K2210/3026 ,  G10K2210/3027 ,  G10K2210/3028 ,  G10K2210/509

    摘要： A noise reducing system is disclosed which comprises a first microphone that picks up noise signal at a first location and that is electrically coupled to a first microphone output path; a loudspeaker that is electrically coupled to a loudspeaker input path and that radiates noise reducing sound at a second location; a second microphone that picks up residual noise from the noise and the noise reducing sound at a third location and that is electrically coupled to a second microphone output path; a first active noise reducing filter that is connected between the first microphone output path and the loudspeaker input path; and a second active noise reducing filter that is connected between the second microphone output path and the loudspeaker input path; in which the first active noise reduction filter is a shelving or equalization filter or comprises at least one shelving or equalization filter or both.

    ADAPTIVE EQUALIZER, ACOUSTIC ECHO CANCELLER DEVICE, AND ACTIVE NOISE CONTROL DEVICE
    4.
    发明授权
    ADAPTIVE EQUALIZER, ACOUSTIC ECHO CANCELLER DEVICE, AND ACTIVE NOISE CONTROL DEVICE 有权
    自适应均衡器，声学回声消除器装置和主动噪声控制装置

    公开(公告)号：EP2675073B1

    公开(公告)日：2018-01-10

    申请号：EP12781653.6

    申请日：2012-03-29

    申请人： Mitsubishi Electric Corporation

    发明人： YANO, Atsuyoshi ,  AWANO, Tomoharu

    IPC分类号： H04B3/23 ,  G10K11/178 ,  H04B3/04 ,  H04R3/02

    CPC分类号： G10K11/175 ,  G10K11/178 ,  H03G5/165 ,  H04B3/235 ,  H04R3/02

    摘要： A variable update step size is determined in proportion to a magnitude ratio or magnitude difference between a first residual signal and a second residual signal. The first residual signal is obtained by using adaptive filter coefficient sequence, where the adaptive filter coefficient sequence has been obtained in previous operations of the adaptive equalizer. The second residual signal is obtained by using a prior update adaptive filter coefficient sequence, where the prior update adaptive filter coefficient sequence is obtained by performing a coefficient update with an arbitrary prior update step size on the adaptive filter coefficient sequence having been obtained in previous operations of the adaptive equalizer.

    METHOD AND TERMINAL FOR CONFIGURING NOISE REDUCTION EARPHONE, AND NOISE REDUCTION EARPHONE
    5.
    发明公开
    METHOD AND TERMINAL FOR CONFIGURING NOISE REDUCTION EARPHONE, AND NOISE REDUCTION EARPHONE 审中-公开
    用于配置降噪耳机和降噪耳机的方法和终端

    公开(公告)号：EP3255897A1

    公开(公告)日：2017-12-13

    申请号：EP15892093.4

    申请日：2015-05-15

    申请人： Huawei Technologies Co. Ltd.

    发明人： YUAN, Yao ,  PENG, Zhonghui

    IPC分类号： H04R1/10

    CPC分类号： H04R1/1083 ,  G06F8/65 ,  G10K11/175 ,  G10K11/1785 ,  G10K2210/1081 ,  G10K2210/3016 ,  H04M9/08 ,  H04R1/08 ,  H04R1/1041 ,  H04R5/04 ,  H04R2201/107 ,  H04R2420/05 ,  H04R2420/09 ,  H04R2460/01

    摘要： A noise reduction headset setting method, a terminal, and a noise reduction headset are provided. The method includes: triggering, when it is detected that a noise reduction headset is inserted into a preset headset jack and a communication setting instruction is received, the noise reduction headset to enter a communication mode, where the preset headset jack includes a first line used by a first channel and a sending channel, a second line used by a second channel and a receiving channel, and a third line used by a microphone and communication triggering (101); receiving a headset setting request in the communication mode, where the headset setting request is used to request a firmware upgrade and/or noise reduction parameter setting for the noise reduction headset (102); and setting the noise reduction headset according to the headset setting request by using the preset headset jack (103). By means of the method, a noise reduction range of a noise reduction headset is flexibly adjusted, and practicability of the noise reduction headset is improved.

    摘要翻译： 提供降噪耳机设置方法，终端和降噪耳机。 该方法包括：当检测到降噪耳机插入预设耳机插孔并接收到通信设置指令时，触发降噪耳机进入通信模式，其中预设耳机插孔包括使用的第一线路 由第一信道和发送信道接收由第二信道和接收信道使用的第二线路以及由麦克风和通信触发使用的第三线路（101）; 在所述通信模式下接收头戴式耳机设置请求，其中，所述头戴式耳机设置请求用于请求所述降噪头戴式耳机（102）的固件升级和/或噪声降低参数设置; 以及通过使用预设耳机插孔（103）根据耳机设置请求来设置降噪耳机。 通过该方法灵活调整降噪耳机的降噪范围，提高降噪耳机的实用性。

    Audio system
    7.
    发明授权
    Audio system 有权

    公开(公告)号：EP2661097B1

    公开(公告)日：2017-10-04

    申请号：EP13166550.7

    申请日：2013-05-03

    申请人： Sony Interactive Entertainment Europe Limited

    发明人： Benson, Simon Mark ,  Bickerstaff, Ian Henry

    IPC分类号： H04R1/00 ,  G02B27/01 ,  G10K11/178 ,  H04R1/10 ,  H04R5/033

    CPC分类号： G10K11/175 ,  G02B27/017 ,  G10K11/178 ,  G10K2210/1081 ,  G10K2210/3215 ,  H04R1/1083 ,  H04R5/033

    摘要： An audio system comprises a headset (10) comprising a pair of earpieces (20)(30) positionable with respect to the user's ears so that, in use, the user is inhibited from hearing sounds from the user's environment, at least one of the earpieces having a transducer (50) for reproducing sounds from an input audio signal; a microphone (70) for generating a captured audio signal representing captured sounds from the user's environment; a detector (100) for detecting the presence of any of a set of one or more characteristic sounds in the captured audio signal; and a controller (110) operable to transmit sounds from the user's environment to the user in response to a detection that one or more of the set of characteristic sounds is present in the captured audio signal.

    Active design of exhaust sounds
    9.
    发明授权
    Active design of exhaust sounds 有权
    排气声音的主动设计

    公开(公告)号：EP2915967B1

    公开(公告)日：2017-08-02

    申请号：EP15156486.1

    申请日：2015-02-25

    申请人： Eberspächer Exhaust Technology GmbH & Co. KG

    发明人： Keck, Mathias ,  Romzek, Martin

    IPC分类号： F01N1/02 ,  F01N1/04 ,  F01N1/06 ,  G10K11/175

    CPC分类号： G10H5/10 ,  F01N1/023 ,  F01N1/04 ,  F01N1/065 ,  F01N2310/02 ,  F01N2470/02 ,  F01N2470/14 ,  F01N2470/16 ,  F01N2470/18 ,  F01N2470/22 ,  F01N2490/08 ,  G10K11/175 ,  G10K2210/12822 ,  G10K2210/32272 ,  H04R1/00 ,  H04R2499/13

    摘要： A sound generator 1 for an active noise control system 9 for a vehicle 8 with internal combustion engine 6 is disclosed. The sound generator 1 comprises: a first casing 10 with at least one exhaust gas inlet 11 and at least one exhaust gas outlet 12 different from the at least one exhaust gas inlet 11 and at least one electro-acoustical transducer 20 that is configured to produce sound in dependence on an electrical control signal. The at least one electro-acoustical transducer 20 is located within the first casing 10 or directly attached to the first casing 10. Furthermore, an active noise control system 9 comprising the above sound generator 1 and a vehicle comprising the active noise control system are disclosed.

    摘要翻译： 公开了一种用于具有内燃机6的车辆8的有源噪声控制系统9的声音发生器1。 声音发生器1包括：第一壳体10，其具有至少一个排气入口11和至少一个不同于至少一个排气入口11的排气出口12;以及至少一个电声换能器20，其被配置为产生 根据电控制信号发出声音。 至少一个电声换能器20位于第一壳体10内或直接附接到第一壳体10.此外，公开了包括上述声音发生器1和包括有源噪声控制系统的车辆的有源噪声控制系统9 。