| 摘要 |
<p>1530688 Sound reproduction systems BODYSONIC KK I April 1976 [8 April 1975 31 Jan 1976 (2)] 13218/76 Heading H4J The framework of a seat (sofa, bed, chair, etc.) is vibrated by the shaft 6 of an electromagnetic transducer supplied with a signal the electrical equivalent of sound produced by reproduction apparatus 23, 24. Signals up to 150 Hz are thereby perceived through the body. The transducer yoke carries annular dampers 10, 11 coupling the magnetic assembly 5 to the shaft 6 and coil former 13. Detailed frameworks are described with respect to Figs. 4-12, not shown.</p> |
