| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve a speaker system comprising a passive radiator required in reproducing low-pitched sound with a compact speaker, by realizing further miniaturization, improving low-pitched sound radiation performance, facilitating assembly and simplifying design processes. <P>SOLUTION: A passive radiator having a circular outline is inserted into a tetragon inside an enclosure. The space generated by the difference in shapes is used as an air passage, so that a passive radiator based speaker system is constructed with a wasteless structure. In addition, the passive radiator is unitized. <P>COPYRIGHT: (C)2013,JPO&INPIT |
