Active sound control apparatus
    3.
    发明授权
    Active sound control apparatus 有权
    主动声控装置

    公开(公告)号:US08526630B2

    公开(公告)日:2013-09-03

    申请号:US12041990

    申请日:2008-03-04

    IPC分类号: H04B1/00

    CPC分类号: G10K15/02 B60L2270/42

    摘要: An active sound control apparatus includes a delay circuit for delaying the output of a frequency component of a sound effect by delaying an engine rotation frequency signal representative of an engine rotation frequency [Hz], a delay circuit for delaying the output of an amplitude component of the sound effect by delaying an engine rotation frequency change signal representative of an engine rotation frequency change [Hz/second], and delay circuits for delaying the output of all components of the sound effect by delaying a control signal for controlling the outputs of speakers.

    摘要翻译: 有源声音控制装置包括延迟电路,用于通过延迟表示发动机转速[Hz]的发动机转速信号来延迟声音效果的频率分量的输出,延迟电路,用于延迟振荡分量的输出 通过延迟表示发动机旋转频率变化[Hz /秒]的发动机转速变化信号的声音效果,以及通过延迟用于控制扬声器的输出的控制信号来延迟声音效果的所有分量的输出的延迟电路。

    Active noise control apparatus
    4.
    发明授权
    Active noise control apparatus 失效
    主动噪声控制装置

    公开(公告)号:US08111835B2

    公开(公告)日:2012-02-07

    申请号:US12058050

    申请日:2008-03-28

    摘要: A subtractor subtracts an echo canceling signal from a canceling error signal to estimate the resonant noise to be silenced at a position of a microphone, and outputs a first basic signal representing the estimated resonant noise as an input signal supplied to a controller. In the controller, a delay filter generates a second basic signal by delaying the first basic signal by a time value. The controller generates a control signal based on the first basic signal and the second basic signal.

    摘要翻译: 减法器从消除误差信号中减去回波消除信号,以估计在麦克风的位置处要沉默的谐振噪声,并输出表示估计的谐振噪声的第一基本信号作为提供给控制器的输入信号。 在控制器中,延迟滤波器通过将第一基本信号延迟时间值来产生第二基本信号。 控制器基于第一基本信号和第二基本信号产生控制信号。

    Vehicular sound effect generating apparatus
    5.
    发明授权
    Vehicular sound effect generating apparatus 有权
    车载音效发生装置

    公开(公告)号:US08041053B2

    公开(公告)日:2011-10-18

    申请号:US11727239

    申请日:2007-03-26

    IPC分类号: H04B1/00

    摘要: A vehicular sound effect generating apparatus has a controller for determining whether a transmission on a vehicle is a manual transmission or an automatic transmission based on whether a clutch signal is generated or not, and automatically changing weighting gain characteristics as acoustic correcting characteristics stored in a sound pressure adjuster depending on the determined transmission. The vehicular sound effect generating apparatus generates a sound effect in a vehicle cabin depending on the manual transmission or the automatic transmission.

    摘要翻译: 车用声音效果产生装置具有控制器,用于基于是否产生离合器信号来确定车辆上的变速器是手动变速器还是自动变速器,并且将加权增益特性自动改变为存储在声音中的声学校正特性 压力调节器取决于确定的传动。 车辆声音效果产生装置根据手动变速器或自动变速器在车厢中产生声音效果。

    Vehicular active noise/vibration/sound control system, and vehicle incorporating such system
    6.
    发明授权
    Vehicular active noise/vibration/sound control system, and vehicle incorporating such system 有权
    车载有源噪声/振动/声音控制系统,以及包含该系统的车辆

    公开(公告)号:US07876910B2

    公开(公告)日:2011-01-25

    申请号:US11442357

    申请日:2006-05-30

    IPC分类号: A61F11/06 G10K11/16 H03B29/00

    摘要: An active noise/vibration/sound control system for a vehicle has an ANC (active noise control apparatus), an AVC (active vibration control apparatus), and an ASC (active sound control apparatus). To prevent the ANC, the AVC, and the ASC from interfering with each other and hence to prevent vehicle cabin environment of vibrations, noise, and sound from being impaired, activation and inactivation of the ANC, the AVC, and the ASC are controlled or their control characteristics are controlled in relation to each other by a weighting variable calculator as a coordination controller, depending on an engine rotation frequency and a frequency change which are representative of a running state of the vehicle as detected by an engine rotation frequency detector and a frequency change detector that serve as a running state detector.

    摘要翻译: 用于车辆的有源噪声/振动/声音控制系统具有ANC(主动噪声控制装置),AVC(主动振动控制装置)和ASC(有源声音控制装置)。 为了防止ANC,AVC和ASC彼此干扰,因此防止车辆的振动,噪声和声音的环境受到损害,ANC,AVC和ASC的激活和失活被控制或 根据由发动机旋转频率检测器检测到的代表车辆行驶状态的发动机旋转频率和频率变化,其控制特性通过作为协调控制器的加权变量计算器彼此相互控制, 频率变化检测器,用作运行状态检测器。

    Active noise control system
    8.
    发明申请
    Active noise control system 有权
    主动噪声控制系统

    公开(公告)号:US20070038441A1

    公开(公告)日:2007-02-15

    申请号:US11500418

    申请日:2006-08-08

    IPC分类号: G10L21/02

    CPC分类号: G10K11/178 G10L21/0208

    摘要: An active noise control system prevents a continuous muffled sound from being generated as an abnormal sound under a high sound pressure from a speaker when a microphone as a sound detector is covered, and reduces noise immediately when the microphone is uncovered. A first threshold value as an upper limit value and a second threshold value as a lower limit value are provided for the filter coefficient of an adaptive notch filter. When the filter coefficient is greater than the first threshold value, a control sound is faded out according to a forgetting process. When the filter coefficient is smaller than the second threshold value, an adaptive control process is resumed. Even if the microphone is covered, the filter coefficient does not exceed the first threshold value as the upper limit value.

    摘要翻译: 主动噪声控制系统防止当作为声音检测器的麦克风被覆盖时从扬声器产生作为高声压的高声压的连续消声,并且当麦克风未被覆盖时立即降低噪声。 针对自适应陷波滤波器的滤波器系数提供作为上限值的第一阈值和作为下限值的第二阈值。 当滤波器系数大于第一阈值时,根据遗忘过程淡出控制声音。 当滤波器系数小于第二阈值时,恢复自适应控制处理。 即使麦克风被覆盖,滤波器系数也不会超过第一阈值作为上限值。

    Active noise control system and active vibration control system
    9.
    发明授权
    Active noise control system and active vibration control system 有权
    主动噪声控制系统和主动振动控制系统

    公开(公告)号:US08150055B2

    公开(公告)日:2012-04-03

    申请号:US11723435

    申请日:2007-03-20

    IPC分类号: G10K11/16 A61F11/06

    CPC分类号: G10K11/178

    摘要: An active noise control system includes a filter coefficient updating unit including an imaginary term estimator. The imaginary term estimator estimates an imaginary term Ie from a real term Re of an error signal e supplied from a microphone. The filter coefficient updating unit updates a filter coefficient W of an adaptive filter based on the imaginary term Ie, the real term Re, and a corrective signal supplied from a reference signal corrector. The filter coefficient updating unit updates the filter coefficient W successively in respective sampling periods.

    摘要翻译: 有源噪声控制系统包括具有虚拟项估计器的滤波器系数更新单元。 虚词估计器从麦克风提供的误差信号e的实数Re估计虚词Ie。 滤波器系数更新单元基于虚项Ie,实数Re和从参考信号校正器提供的校正信号来更新自适应滤波器的滤波器系数W. 滤波器系数更新单元在各个采样周期中连续地更新滤波器系数W.

    ACTIVE NOISE CONTROLLER
    10.
    发明申请
    ACTIVE NOISE CONTROLLER 有权
    主动噪声控制器

    公开(公告)号:US20110075854A1

    公开(公告)日:2011-03-31

    申请号:US12994025

    申请日:2009-02-19

    IPC分类号: G10K11/16

    摘要: On an active noise controller, an adjustment reference signal generator generates an adjustment reference signal Sra by reading the waveform data sequentially at a read location shifted by a given amount from a read location for a reference signal Sr with respect to the waveform data at a reference signal generator. A one-tap adaptive filter generates a control signal Scp by multiplying the adjustment reference signal Sra by a filter factor W. A gain controller outputs a compensation control signal Sca generated by multiplying the control signal Scp by gain G. A speaker outputs the compensation control signal Sca as a cancellation sound.

    摘要翻译: 在有源噪声控制器上,调整参考信号发生器通过在参考信号Sr的读取位置相对于基准信号Sr相对于波形数据的读取位置顺序地读取波形数据来生成调整参考信号Sra 信号发生器。 单抽头自适应滤波器通过将调整参考信号Sra乘以滤波器因子W来产生控制信号Scp。增益控制器输出通过将控制信号Scp乘以增益G而产生的补偿控制信号Sca。扬声器输出补偿控制 信号Sca作为取消声音。