Wideband Slot-Loading Loudspeaker Resonance Control

The patent applies the principle of converting harm into benefit by utilizing the resonance modes of the slot and waveguide, which were previously causing harmful peaks and dips in high frequency response. By strategically positioning openings in the reflective member at locations corresponding to these resonance modes, the patent transforms the harmful resonance effects into beneficial frequency enhancement, thereby improving high frequency reproduction performance while maintaining the thin profile design.

The patent employs parameter changes by modifying the acoustic characteristics of the slot-loading system through the addition of openings in the reflective member. These openings change the resonance frequencies and modes within the waveguide, thereby altering the frequency response characteristics to reduce unwanted peaks and dips while maintaining the compact thickness design.

The patent applies the principle of extraction by removing the need for additional filtering components and separate tweeters. Instead of adding complex electronic filtering systems or multiple speaker drivers, the patent extracts the frequency correction function into the mechanical structure itself by positioning openings in the reflective member, thereby simplifying the overall device architecture while maintaining high frequency reproduction performance.

The patent implements self-service by enabling the slot-loading loudspeaker structure to correct its own frequency distortion through the strategically positioned openings in the reflective member. The structure itself performs the frequency correction function that would otherwise require external filtering systems or additional tweeters, thereby reducing device complexity while improving high frequency reproduction.