| 摘要 |
<p>A<SUP/>sound transducer (10) imparts acoustical energy directly to a solid surface. The sound transducer comprises a pair of symmetrical magnet assemblies (16, 18), a pair of symmetrical voice coils (66, 68), and an actuator (22). The magnet assemblies each present an area of concentrated magnetic flux (60, 62). The symmetrical voice coils are positioned in the vicinity of the areas of concentrated magnetic flux and are operable to receive an alternating audio signal, which causes the voice coils to move relative to the magnet assemblies.</p> |
