Patent ID: 6804367
Filing Date: 2004-10-12
Classification: H04R

Abstract:
A speaker apparatus comprising:a diaphragm formed of a substantially flat plate; a supporting member for fixedly supporting said diaphragm at only one point at one end of an outer rim of said diaphragm, the remaining portions of the outer rim of said diaphragm being unsupported, wherein the outer rim of said diaphragm other than at said one point is substantially freely oscillatable in a direction of thickness of the diaphragm; and at least one driver unit connected to a flat surface of said diaphragm and arranged at an offset position relative to a midportion of the diaphragm, wherein a distance between said driver unit and the midportion of the diaphragm is smaller than a distance between the outer rim and the midportion of the diaphragm, and, wherein sound radiation is realized by flexural oscillations induced in the diaphragm by oscillations applied from said driver unit based on an input signal fed thereto.