Using a planar voice coil between segmented magnets, this case shows how speaker size is reduced while improving sound pressure and bandwidth.
A dome edge positioning portion keeps the diaphragm concentric during forming, reducing glue issues, wobbling, and speaker reliability loss.
A diaphragm and enclosed volume lower sound pressure before it reaches the microphone, preserving clear speech capture near the mouth.
Merges active and passive diaphragms into a single assembly, resolving the contradiction between device size and bass performance.
Cantilever mass projects from shank to control membrane vibrations, minimizing weight while improving sound pressure levels.
Segmented ribs on a circular surround increase stiffness to prevent buckling at high displacements while maintaining linear force behavior.