Patent ID: 6853735
Filing Date: 2005-02-08
Classification: H04M,H04R

Abstract:
1. A balance armature type receiver to be mounted in a portable communication device that has a display panel, comprising: a housing; a diaphragm having a circumferential edge supported by the housing; a magnetic member disposed in the housing for defining a predetermined gap and for generating a direct-current magnetic field passing across the predetermined gap; a holding member made of magnetic material for holding the magnetic member; a coil disposed so as to surround the armature; a sound release hole on a top surface of the housing on a same side as the display panel; and a terminal to be connected to the portable communication device on an under surface that is an opposite side of the surface provided with the sound release hole, the housing having an outer shape of a substantially rectangular parallelepiped having a wall face almost parallel to the center axis of the armature.