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公开(公告)号：US08170223B2
公开(公告)日：2012-05-01
申请号：US12651890
申请日：2010-01-04
CPC分类号： H04R3/12 , H04R1/403 , H04R2430/20
摘要： A loudspeaker is provided for receiving an incoming electrical signal and transmitting an acoustical signal that is directional and has a substantially constant beamwidth over a wide frequency range. The loudspeaker may include a curved mounting plate that has curvature over a range of angles. The loudspeaker may include an array of speaker drivers coupled to the mounting plate. Each speaker driver may be driven by an electrical signal having a respective amplitude that is a function of the speaker driver's respective location on the mounting plate. The function may be a Legendre function. Alternatively, the loudspeaker may include a flat mounting plate. In this case, the respective electrical signal driving each speaker may have a phase delay that virtually positions the speaker onto a curved surface.
摘要翻译： 扬声器被提供用于接收输入的电信号并且发送在宽的频率范围内是有向的且具有基本恒定的波束宽度的声学信号。 扬声器可以包括在一定范围的角度上具有曲率的弯曲安装板。 扬声器可以包括耦合到安装板的扬声器驱动器的阵列。 每个扬声器驱动器可以由具有作为扬声器驱动器在安装板上的相应位置的函数的相应幅度的电信号驱动。 该函数可以是Legendre函数。 或者，扬声器可以包括平坦的安装板。 在这种情况下，驱动每个扬声器的相应电信号可以具有将扬声器实际上定位在曲面上的相位延迟。
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公开(公告)号：US4308932A
公开(公告)日：1982-01-05
申请号：US147014
申请日：1980-05-06
CPC分类号： G10K11/025
摘要： A loudspeaker horn having improving directivity has a pair of smoothly flared vertical sidewalls joined to a pair of smoothly flared horizontal sidewalls. In an exemplary embodiment, one pair of sidewalls is generated as a surface of revolution, with the curvature of the surface being defined by a power series formula. The contour of the remaining pair of sidewalls is also defined by the power series formula, although different constants may be used. The vertical and horizontal sidewalls are separately defined and are substantially congruent at the rectangular or square mouth. In the exemplary embodiment, the gap formed at the back of one of the pairs of sidewalls is connected to the throat formed at the back of the other pair of sidewalls by a connecting section having an arcuate area which monotonically increases from the throat to the gap.
摘要翻译： 具有改进的方向性的扬声器喇叭具有一对平滑地扩张的垂直侧壁，其连接到一对平滑地扩张的水平侧壁。 在示例性实施例中，产生一对侧壁作为旋转表面，其中曲面的曲率由幂级数公式定义。 剩余的一对侧壁的轮廓也由幂级数公式定义，尽管可以使用不同的常数。 垂直和水平侧壁是分开限定的，并且在矩形或方形口处基本上一致。 在示例性实施例中，形成在一对侧壁之一的后部的间隙通过连接部分连接到在另一对侧壁的背面形成的喉部，该连接部分具有从喉部到间隙单调增加的弓形区域 。
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公开(公告)号：US07684574B2
公开(公告)日：2010-03-23
申请号：US11371538
申请日：2006-03-08
CPC分类号： H04R1/403
摘要： A reflective loudspeaker array is cooperatively operable with an acoustically reflective planar surface to provide a constructive combination of direct and reflected sound waves that produces a uniform sound field. The uniform sound field provides a controlled sound field in the vertical and horizontal direction, and also provides uniformity from distances close to the reflective loudspeaker array to far way. The direct and reflected sound waves are advantageously and constructively combinable to generate a focused beamwidth of soundwaves. The reflective loudspeaker array includes a plurality of loudspeakers coupled to a surface of the reflective loudspeaker array. The surface may be formed to include at least one curve with a radius of curvature. The reflective loudspeaker array may be placed adjacent an acoustically reflective planar surface such that a frontal plane of a loudspeaker adjacently located closest to the acoustically reflective planar surface is aligned perpendicularly, and a frontal plane of a loudspeaker spaced away from the acoustically reflective planar surface is not aligned perpendicularly.
摘要翻译： 反射式扬声器阵列可与声反射平面表面协同操作，以提供产生均匀声场的直接和反射声波的结构化组合。 均匀的声场在垂直和水平方向上提供受控的声场，并且还提供距反射式扬声器阵列距离远的距离的均匀性。 直接和反射的声波有利地和可构造地组合以产生聚焦波束宽度的声波。 反射扬声器阵列包括耦合到反射扬声器阵列的表面的多个扬声器。 表面可以形成为包括具有曲率半径的至少一个曲线。 反射式扬声器阵列可以邻近声反射平面表面放置，使得邻近声反射平面表面的相邻定位的扬声器的前平面垂直对准，并且与声反射平面相隔离的扬声器的前平面是 不垂直对齐。
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公开(公告)号：US4580655A
公开(公告)日：1986-04-08
申请号：US539351
申请日：1983-10-05
CPC分类号： G10K11/025 , H04R1/345
摘要： Opposed side walls of a loudspeaker horn are constructed to direct portions of a sound beam toward a target over different preselected included angles, producing an incident beam which is substantially coextensive with the target. The side walls preferably extend downstream at the preselected angles over a distance at least comparable to a maximum wavelength at which the horn is to be used.
摘要翻译： 扬声器喇叭的相对的侧壁被构造成通过不同的预选的夹角将声束的一部分引向目标，产生与目标基本上共同延伸的入射光束。 侧壁优选地以预选的角度向下游延伸至少与使用喇叭的最大波长相当的距离。
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公开(公告)号：US08073156B2
公开(公告)日：2011-12-06
申请号：US11133846
申请日：2005-05-19
CPC分类号： H04R1/345 , H04R1/26 , H04R1/403 , H04R5/02 , H04R2499/13
摘要： An audio processing system for a vehicle includes a plurality of loudspeakers positioned to form a single line array. The loudspeaker line array is positionable in a vehicle on a dashboard of the vehicle substantially at the convergence of the dashboard and a window of the vehicle. When the loudspeaker line array is driven by an audio signal, a vertically and horizontally focused and narrowed sound pattern is perceived by a listener in the vehicle. The sound pattern is the result of the constructive combination of the direct sound impulses and the reflected sound impulses produced by each loudspeaker in the array. Using delay, attenuation and phase adjustment of the audio signal, the sound pattern may be controlled, limited, and directed to one or more locations in the vehicle.
摘要翻译： 用于车辆的音频处理系统包括被定位成形成单线阵列的多个扬声器。 扬声器线阵列可以基本上在仪表板和车辆的窗口的会聚处，在车辆的仪表板上的车辆中定位。 当扬声器线阵列被音频信号驱动时，车辆中的收听者感知到垂直和水平聚焦和变窄的声音模式。 声音模式是由阵列中的每个扬声器产生的直接声音脉冲和反射的声音脉冲的结构性组合的结果。 使用音频信号的延迟，衰减和相位调整，声音模式可以被控制，限制和定向到车辆中的一个或多个位置。
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公开(公告)号：US07826622B2
公开(公告)日：2010-11-02
申请号：US10701256
申请日：2003-11-04
CPC分类号： H04R3/12 , H04R1/403 , H04R2430/20
摘要： A loudspeaker is provided for receiving an incoming electrical signal and transmitting an acoustical signal that is directional and has a substantially constant beamwidth over a wide frequency range. The loudspeaker may include a curved mounting plate that has curvature over a range of angles. The loudspeaker may include an array of speaker drivers coupled to the mounting plate. Each speaker driver may be driven by an electrical signal having a respective amplitude that is a function of the speaker driver's respective location on the mounting plate. The function may be a Legendre function. Alternatively, the loudspeaker may include a flat mounting plate. In this case, the respective electrical signal driving each speaker may have a phase delay that virtually positions the speaker onto a curved surface.
摘要翻译： 扬声器被提供用于接收输入的电信号并且发送在宽的频率范围内是有向的且具有基本恒定的波束宽度的声学信号。 扬声器可以包括在一定范围的角度上具有曲率的弯曲安装板。 扬声器可以包括耦合到安装板的扬声器驱动器的阵列。 每个扬声器驱动器可以由具有作为扬声器驱动器在安装板上的相应位置的函数的相应幅度的电信号驱动。 该函数可以是Legendre函数。 或者，扬声器可以包括平坦的安装板。 在这种情况下，驱动每个扬声器的相应电信号可以具有将扬声器实际上定位在曲面上的相位延迟。
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公开(公告)号：US20100104117A1
公开(公告)日：2010-04-29
申请号：US12651890
申请日：2010-01-04
IPC分类号： H04R5/02
CPC分类号： H04R3/12 , H04R1/403 , H04R2430/20
摘要： A loudspeaker is provided for receiving an incoming electrical signal and transmitting an acoustical signal that is directional and has a substantially constant beamwidth over a wide frequency range. The loudspeaker may include a curved mounting plate that has curvature over a range of angles. The loudspeaker may include an array of speaker drivers coupled to the mounting plate. Each speaker driver may be driven by an electrical signal having a respective amplitude that is a function of the speaker driver's respective location on the mounting plate. The function may be a Legendre function. Alternatively, the loudspeaker may include a flat mounting plate. In this case, the respective electrical signal driving each speaker may have a phase delay that virtually positions the speaker onto a curved surface.
摘要翻译： 扬声器被提供用于接收输入的电信号并且发送在宽的频率范围内是有向的且具有基本恒定的波束宽度的声学信号。 扬声器可以包括在一定范围的角度上具有曲率的弯曲安装板。 扬声器可以包括耦合到安装板的扬声器驱动器的阵列。 每个扬声器驱动器可以由具有作为扬声器驱动器在安装板上的相应位置的函数的相应幅度的电信号驱动。 该函数可以是Legendre函数。 或者，扬声器可以包括平坦的安装板。 在这种情况下，驱动每个扬声器的相应电信号可以具有将扬声器实际上定位在曲面上的相位延迟。
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公开(公告)号：US07555081B2
公开(公告)日：2009-06-30
申请号：US11263452
申请日：2005-10-31
IPC分类号： H04B1/10
CPC分类号： H03H17/06 , H03H17/0261 , H03H17/028 , H03H17/0621 , H03H2218/04
摘要： This invention provides a filter system which may be implemented with less hardware and software resources than traditional filters. In addition, the filter system structure reduces the complexities typically associated with filter design by permitting direct specification of the filter frequency response. Thus, the filter system may adaptively change the filter frequency response on the fly without incurring excessive time or computational costs. The filter system may provide a filtered signal output to any subsequent processing system, such as a voice recognition system or audio reproduction system.
摘要翻译： 本发明提供了一种过滤系统，其可以比传统过滤器更少的硬件和软件资源来实现。 此外，滤波器系统结构通过允许直接规定滤波器频率响应来降低通常与滤波器设计相关的复杂度。 因此，过滤系统可以在飞行中自适应地改变过滤器频率响应，而不会产生过多的时间或计算成本。 滤波器系统可以向诸如语音识别系统或音频再现系统的任何后续处理系统提供经滤波的信号输出。
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公开(公告)号：US4071112A
公开(公告)日：1978-01-31
申请号：US618077
申请日：1975-09-30
摘要： A loudspeaker with a driver and horn in which the horn has a channel expanding in cross section exponentially from the throat of the horn to a second portion, the second portion expanding conically to a rapidly flaring bell portion which terminates in the mouth of the horn. In one embodiment, the channel has a rectangular cross section to provide a wider horizontal beam width than vertical beam width.
摘要翻译： 具有驾驶员和喇叭的扬声器，其中喇叭具有从喇叭喉部指向地扩展到第二部分的通道，第二部分以锥形扩展到终止在喇叭嘴部的快速扩张的钟形部分。 在一个实施例中，通道具有矩形横截面以提供比垂直梁宽度更宽的水平梁宽度。
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