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1. 发明授权

US07428948B2 Hybrid amplitude-phase grating diffusers 有权
标题翻译：混合振幅相位光栅扩散器
公开(公告)号：US07428948B2
公开(公告)日：2008-09-30
申请号：US11201067
申请日：2005-08-11
申请人： Peter D'Antonio , Trevor J. Cox
发明人： Peter D'Antonio , Trevor J. Cox
IPC分类号： E04B1/82 , E04B1/99 , E04B1/84
CPC分类号： E04B1/86 , E04B2001/848 , E04B2001/8485 , E04B2001/849 , G10K11/20
摘要： A room acoustic diffuser exploits interference, by reflecting waves out-of-phase with the specular energy, making it possible to diminish specular energy. This is achieved by using a diffuser based on a ternary sequence, which nominally has reflection coefficients of 0, −1 and +1. A method for obtaining the design sequence for Quaternary diffusers is also disclosed. Also, design methods for forming the sequences into arrays, and forming hemispherical diffusers are explained.
摘要翻译：房间声扩散器通过反射与镜面光能异相的波浪来利用干扰，使得可能减少镜面光能。这通过使用基于三进制序列的扩散器来实现，其标称具有0，-1和+1的反射系数。还公开了获得第四系扩散器的设计顺序的方法。另外，说明了将序列形成为阵列，形成半球形扩散器的设计方法。

2. 发明授权

US06772859B2 Embodiments of aperiodic tiling of a single asymmetric diffusive base shape 有权
标题翻译：单不对称扩散基体形状的非周期性平铺的实施例
公开(公告)号：US06772859B2
公开(公告)日：2004-08-10
申请号：US10254844
申请日：2002-09-26
申请人： Peter D'Antonio , Trevor J. Cox
发明人： Peter D'Antonio , Trevor J. Cox
IPC分类号： E04B182
CPC分类号： E04B1/84 , E04B2001/8414 , E04B2001/8419 , E04B2001/8457 , G10K11/20
摘要： Embodiments of aperiodic tiling of a single asymmetrical diffusive base shape employ welled or stepped one-dimensional or two-dimensional diffusors, a single or compound curved surface, or an aperiodic geometrical form. Surfaces are tiled in any orientation offering an unlimited number of tiling patterns. In the preferred embodiments of the present invention, a smooth transition between adjacent “tiles” is achieved. Using a single tileable asymmetric base shape reduces the number of shapes requiring manufacture while allowing modulation. The present invention even contemplates extending the inventive techniques into three-dimensional shapes to form volume diffusors. The technique employed to design diffusors to be used in accordance with the teachings of the present invention may rely upon visual appearance, a random sequence, a number theory sequence, or use of an optimization program.
摘要翻译：单个不对称扩散基底形状的非周期性平铺的实施例采用良好或阶梯式一维或二维扩散器，单个或复合曲面或非周期性几何形式。表面平铺在任何方向，提供无限数量的平铺图案。在本发明的优选实施例中，实现了相邻“瓦片”之间的平滑过渡。使用单个可瓦片的不对称基底形状减少了需要制造的形状的数量，同时允许调制。本发明甚至考虑将本发明的技术扩展成三维形状以形成体积扩散器。用于设计根据本发明的教导使用的扩散器的技术可以依赖于视觉外观，随机序列，数字理论序列或优化程序的使用。

3. 发明授权

US06112852A Acoustical treatments with diffusive and absorptive properties and process of design 有权
标题翻译：具有扩散和吸收性能的声学处理和设计过程
公开(公告)号：US06112852A
公开(公告)日：2000-09-05
申请号：US400979
申请日：1999-09-22
申请人： Peter D'Antonio , Trevor J. Cox
发明人： Peter D'Antonio , Trevor J. Cox
IPC分类号： G10K11/16 , G10K11/20 , E04B1/82
CPC分类号： G10K11/20 , G10K11/16
摘要： An appropriate binary sequence is used to create an acoustical treatment surface having desired parts with reflective properties and desired parts having absorptive properties resulting in the net effect of partially diffusive, partially absorptive properties. A genetic algorithm is designed to search for optimal 1D and 2D configurations for the acoustical treatments. A genetic algorithm essentially mimics the process of evolution that occurs in biology and is a known mathematical technique. During the course of genetic optimization, the fitness of individual sequences for the desired purposes is calculated. A useful fitness function includes terms that optimize the desired percentage of reflectivity and absorptivity. Through use of genetically optimized binary sequences, a curved surface may be constructed and optimized to find the best shape to achieve even scattering. The curved surface produces a dramatic improvement in effectiveness of diffusion.
摘要翻译：使用适当的二元序列来产生具有反射性能的所需部分的声学处理表面，并且具有吸收性质的所需部分导致部分扩散，部分吸收性质的净效果。设计一种遗传算法来搜索声学处理的最佳1D和2D配置。遗传算法基本上模仿生物进化过程，是一种已知的数学技术。在遗传优化过程中，计算各个序列对于所需目的的适应度。一个有用的适应度函数包括优化反射率和吸收率所需百分比的术语。通过使用遗传优化的二进制序列，可以构建和优化弯曲表面以找到最佳形状以实现均匀散射。弯曲的表面产生了扩散效果的显着提高。

4. 发明授权

US07322441B2 Extended bandwidth folded well diffusor 有权
标题翻译：扩展带宽折叠井扩散
公开(公告)号：US07322441B2
公开(公告)日：2008-01-29
申请号：US11105370
申请日：2005-04-14
申请人： Peter D'Antonio , Trevor J. Cox
发明人： Peter D'Antonio , Trevor J. Cox
IPC分类号： E04B1/82
CPC分类号： E04B1/86 , E04B2001/8485 , E04B2001/849 , G10K11/20
摘要： An extended bandwidth folded well diffusor extends the diffusion bandwidth of a shallow, asymmetric diffusor by incorporating maximum-depth, folded L-shaped, half-width wells on both ends (sides) of a diffusor, thus providing increased maximum well depth without increasing the physical depth of the diffusor. When the inventive diffusor is placed in an array, the folded L-shaped, maximum-depth, half-width end wells form a novel T-shape, which offers a favorable impedance lowering the resonant frequency, thus extending the diffusor diffusion bandwidth. T-shaped recesses may also be located within a single diffusor. The front surface of the diffusor may be flat or curved or angled.
摘要翻译：扩展带宽折叠阱扩散器通过在扩散器的两端（侧面）上引入最大深度折叠的L形半宽度阱来扩展浅非对称扩散器的扩散带宽，从而提供增加的最大阱深度，而不增加扩散器的物理深度。当本发明的扩散器被放置在阵列中时，折叠的L形，最大深度的半宽端部孔形成新颖的T形，其提供有利的阻抗降低谐振频率，从而延伸扩散器扩散带宽。 T形凹槽也可以位于单个扩散器内。扩散器的前表面可以是平坦的或弯曲的或成角度的。

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