Asymmetric Horn Waveguide for Even Surround Speaker Coverage

The patent applies asymmetry by designing a horn waveguide with non-uniform cross-sectional dimensions along its length. Specifically, the horn has different expansion rates in the vertical and horizontal directions, creating an asymmetric geometry that optimizes sound wave propagation. This asymmetric horn structure enables more even spectrum coverage across all frequencies while maintaining high sensitivity, resolving the contradiction between manufacturing simplicity and performance reliability.

The patent applies local quality by varying the cross-sectional dimensions of the horn waveguide at different locations along its length. The horn has a throat section with smaller dimensions that transitions to a mouth section with larger dimensions, with each section optimized for its specific function. This localized optimization of geometric parameters enables precise control over sound energy distribution, ensuring coverage is directed exactly where needed in the cinema space while maintaining manufacturing feasibility.

The patent applies dynamics by designing a horn waveguide with continuously varying cross-sectional dimensions rather than uniform or stepped geometry. The horn's dimensions change progressively along its length, creating a dynamic transition that optimizes acoustic impedance matching at each stage. This dynamic geometric progression enables the horn to maintain high sensitivity by efficiently transferring acoustic energy while simultaneously optimizing coverage area, resolving the contradiction between energy utilization and coverage optimization.