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    Method and system for updating noise estimates during pauses in an information signal
    1.
    发明授权
    Method and system for updating noise estimates during pauses in an information signal 失效
    用于在信息信号中暂停期间更新噪声估计的方法和系统

    公开(公告)号：US06108610A

    公开(公告)日：2000-08-22

    申请号：US170594

    申请日：1998-10-13

    Applicant: Steve Winn

    Inventor： Steve Winn

    IPC: G01R23/16 ,  G10L11/00 ,  G10L11/02 ,  G10L15/20 ,  G10L21/02 ,  G01R23/00

    CPC classification number: G10L25/78 ,  G10L21/0208 ,  G10L2021/02168

    Abstract: The invention relates to an improved adaptive spectral estimator for estimating the spectral components in a signal containing both an information signal, such as speech, and noise. A method and system provide for generating noise estimates and then only updating the noise estimates during pauses in an information signal, when speech or other information is not detected, rather than continuously updating the noise estimates. A noise estimate is calculated for each frequency band and provides for the inclusion of a variable mathematical factor that can be set by the user to produce the best sound quality.

    Abstract translation: 本发明涉及一种改进的自适应频谱估计器，用于估计包含诸如语音的信息信号和噪声两者的信号中的频谱分量。 一种方法和系统提供用于产生噪声估计，然后仅当不检测到语音或其他信息时才更新信息信号中的暂停期间的噪声估计，而不是不断更新噪声估计。 为每个频带计算噪声估计值，并提供可由用户设置的可变数学因子，以产生最佳音质。

    Muffler
    4.
    发明授权
    Muffler 失效
    围巾

    公开(公告)号：US5619020A

    公开(公告)日：1997-04-08

    申请号：US599642

    申请日：1996-02-09

    Applicant: Owen Jones ,  Michael C. J. Trinder

    Inventor： Owen Jones ,  Michael C. J. Trinder

    IPC: F01N1/06 ,  G10K11/178

    CPC classification number: F01N1/065 ,  G10K11/1788 ,  G10K2210/12822 ,  G10K2210/3011 ,  G10K2210/321 ,  G10K2210/3217 ,  G10K2210/3219 ,  G10K2210/3228 ,  G10K2210/502

    Abstract: A muffler for muffling noise in a fluid flow, such as exhaust gases from an internal combustion engine comprises a chamber, loudspeakers for injecting anti-noise into the chamber under the control of processing circuitry in dependence upon residual noise detected by a microphone. The gas flows from an inflow pipe to an outflow pipe past a radial aperture that produces an acoustic coupling between the chamber and the gas flow, to allow the anti-noise to mix with noise in the gas flow and produce noise cancellation. The coupling is so arranged that the chamber becomes pressurized by the gas flow, in use, so as to restrict hot gas flow through the chamber and thereby provide an essentially benign environment for the loudspeaker.

    Abstract translation: 用于消除来自内燃机的废气的消声器的消音器包括一个室，用于根据麦克风检测到的残余噪声在处理电路的控制下将抗噪声注入到室内的扬声器。 气体从流入管道流过径流孔，径向孔径在腔室和气体流之间形成声耦合，以使抗噪声与气流中的噪声混合并产生噪声消除。 联接器被布置成使得室在使用中被气流加压，以便限制热气流通过室，从而为扬声器提供基本上良好的环境。

    Low voltage bender piezo-actuators
    7.
    发明授权
    Low voltage bender piezo-actuators 失效
    低压弯曲压电致动器

    公开(公告)号：US5473214A

    公开(公告)日：1995-12-05

    申请号：US57944

    申请日：1993-05-07

    Applicant: Stephen Hildebrand

    Inventor： Stephen Hildebrand

    IPC: H01L41/09 ,  H01L41/08

    CPC classification number: H01L41/0973 ,  H01L41/098

    Abstract: A low voltage bender piezo-actuator with multiple, same size piezo layers (11, 12) separated by thin electrically conductive strips (14) and adapted to be affixed to a rigid, vibration transmitting plate (10) to produce noise counter vibrations to prevent noise from passing through the plate.

    Abstract translation: 一种具有多个相同尺寸的压电层（11,12）的低电压弯曲压电致动器，其由细的导电条（14）分开，并且适于固定到刚性的振动传递板（10）以产生噪声计数器振动以防止 噪音通过盘子。

    Component mount assembly providing active control of vehicle vibration
    9.
    发明授权
    Component mount assembly providing active control of vehicle vibration 失效
    组件安装组件提供车辆振动的主动控制

    公开(公告)号：US5219037A

    公开(公告)日：1993-06-15

    申请号：US822795

    申请日：1992-01-21

    Applicant: Stanley E. Smith ,  Robert R. Klein ,  William E. Gossman ,  Scott K. Miller

    Inventor： Stanley E. Smith ,  Robert R. Klein ,  William E. Gossman ,  Scott K. Miller

    IPC: B60K5/12 ,  F16F1/36 ,  F16F15/00 ,  F16F15/02 ,  F16F15/03

    CPC classification number: F16F15/03 ,  B60K5/1283 ,  F16F1/3615 ,  F16F15/02

    Abstract: A mount assembly is provided for mounting a component, such as an engine, to a vehicle for active control of vibration. The assembly includes first and second mounting members and, an intermediate insert with first and second elastomeric systems connecting said first and second mounting members with the intermediate insert in between. An actuator in parallel with said first elastomeric system provides vertical force to said first elastomeric system to provide a relatively soft vertical rate. A controller operates the actuator in response to sensed vibration so that the vertical force tends to avoid or cancel it. A relatively high fore/aft and lateral dynamic rate of the first system protects the actuator. The second elastomeric system connects the second mounting member with the intermediate insert and exhibits a relatively high vertical rate and a relatively soft fore/aft and lateral rate. One or more sensors feeds data to a controller that analyzes the vibrations to determine the harmonics thereof. The controller then constructs one or more output waveforms and feeds them to the actuator so that a force is applied across the first elastomeric system between the first mounting member and the intermediate insert, thereby tending to produce the relatively soft vertical rate for component isolation and noise suppression.

    Abstract translation: 提供了用于将诸如发动机的部件安装到车辆上用于主动控制振动的安装组件。 该组件包括第一和第二安装构件，以及具有第一和第二弹性体系统的中间插入件，其将所述第一和第二安装构件与中间插入件连接在其间。 与所述第一弹性体系统平行的致动器向所述第一弹性体系统提供垂直的力以提供相对较软的垂直速率。 控制器响应于感测到的振动来操作致动器，使得垂直力倾向于避免或取消它。 第一系统的相对较高的前/后和横向动态速率保护致动器。 第二弹性体系统将第二安装构件与中间插入件连接，并且呈现相对高的垂直速率和相对较软的前/后和横向速率。 一个或多个传感器将数据馈送到分析振动的控制器以确定其谐波。 然后，控制器构造一个或多个输出波形并将其馈送到致动器，使得在第一安装构件和中间插入件之间跨越第一弹性体系统施加力，从而趋向于产生用于部件隔离和噪声的相对柔软的垂直速率 抑制。

    Method and apparatus for conveying audiovisual information
    10.
    发明授权
    Method and apparatus for conveying audiovisual information 失效
    用于传达视听信息的方法和装置

    公开(公告)号：US6147594A

    公开(公告)日：2000-11-14

    申请号：US38571

    申请日：1998-03-11

    Applicant: Michael J. Parrella ,  Irene Lebovics

    Inventor： Michael J. Parrella ,  Irene Lebovics

    IPC: G08B27/00 ,  G09F27/00 ,  H04R1/00 ,  H04R1/02 ,  H04R7/04

    CPC classification number: G09F27/00

    Abstract: The present invention is a method and apparatus for conveying audiovisual information. The invention utilizes a speaker as a visual medium. A sheet of material is secured to the radiating face of a speaker. A visual image is then displayed on the sheet of material. Different techniques can be utilized to display the visual image on the sheet of material. For example, a video image can be projected on to the sheet of material or the sheet of material can contain a fixed image. While the visual image is being displayed on the radiating face of the speaker, audible information is being broadcast over the speaker.

    Abstract translation: 本发明是用于传送视听信息的方法和装置。 本发明利用扬声器作为视觉媒体。 一片材料固定在扬声器的辐射面上。 然后，在片材上显示视觉图像。 可以使用不同的技术在片材上显示视觉图像。 例如，可以将视频图像投影到该材料片上，或者该片材料可以包含固定的图像。 当视觉图像被显示在扬声器的辐射面上时，声音信息正在扬声器上广播。

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