Multi-Cone Speaker Structure for Clear Multi-Channel Sound

The patent divides the single voice coil into multiple independent voice coils (first voice coil, second voice coil, third voice coil, etc.), each corresponding to a separate cone and capable of receiving independent audio signals. This segmentation eliminates the need to wind multiple groups of coils into one heavy voice coil, as each voice coil can be optimized for its specific function with appropriate wire gauge and turn count, significantly reducing the weight of each individual voice coil while maintaining multi-channel capability.

The patent transitions from a single-dimensional approach (one voice coil handling all channels) to a multi-dimensional arrangement where multiple voice coils are spatially distributed around the magnet system. Each voice coil is positioned to drive a specific cone in a particular direction, creating a three-dimensional sound field. This dimensional distribution allows each voice coil to be lighter while collectively providing multi-channel audio output.

The patent segments the vibration system into multiple independent units, each consisting of a voice coil and a cone. By distributing the acoustic workload across multiple cones rather than requiring one large, rigid cone to handle all frequencies and directions, each individual cone can be made from materials with lower rigidity requirements. The segmented approach allows each cone-voice coil unit to be optimized independently.

The patent combines multiple cone-voice coil units around a central magnet system to form an integrated loudspeaker assembly. The cones are arranged in different orientations (front, rear, side-firing) and work together to produce omnidirectional sound. This merging of multiple flexible, low-rigidity cones creates a system that collectively achieves the acoustic performance previously requiring a single rigid cone.

The patent applies local quality by assigning different functional characteristics to different parts of the system. Each voice coil is optimized for its specific frequency range and directional output (e.g., tweeter voice coils for high frequencies, woofer voice coils for low frequencies). Each cone is designed with specific acoustic properties for its intended radiation pattern. This localized optimization of quality parameters across different segments of the system enables clear multi-channel sound reproduction with distinct frequency and spatial characteristics.

The patent utilizes mechanical vibration principles by designing each cone-voice coil-magnet system to resonate at specific frequencies optimized for its intended audio range. The cones are shaped and dimensioned to create favorable vibration patterns for their specific functions (omnidirectional radiation, directional projection, bass response). By tuning the mechanical vibration characteristics of each independent unit, the system achieves clear sound reproduction across multiple channels with minimal interference between frequency bands.