Force Balanced Micro Transducer Array Vibration Cancellation

The patent employs a dual transducer configuration where two rare earth magnets are positioned with their like poles facing each other (e.g., both north poles facing). This creates opposing magnetic forces that counterbalance the vibratory forces generated during operation, effectively canceling out the harmful vibrations and distortion that would otherwise be produced by the lightweight rare earth magnets.

The patent combines two transducer units into a single integrated assembly where the magnets are mechanically coupled to a common voice coil assembly. This merging allows the opposing forces from both magnets to work together through the shared voice coil, achieving force balance while maintaining the benefits of rare earth magnet miniaturization.

By positioning two rare earth magnets with like poles facing each other in opposing transducer units, the system creates counterbalancing forces that neutralize vibrations. This allows the use of very small speaker units suitable for portable devices while maintaining effective vibration control through the opposing force mechanism.

The patent uses asymmetric positioning of the two transducer units within the housing, with each unit oriented to project sound in a different direction (e.g., one forward, one backward, or at different angles). This asymmetric arrangement allows the vibration-canceling forces to work effectively while optimizing sound projection for the specific portable device application.