Disclosed is a speaker having a device capable of generating sound and vibration for notifying reception of an incoming call when a radio incoming signal is received. The speaker comprises a cylindrical frame; magnetic field forming means disposed in the cylindrical frame for forming first and second magnetic flux; a sound generating section for producing electromagnetic force by interaction with the first magnetic flux and thereby generating sound, when a signal having a frequency which is no less than a predetermined frequency, is applied thereto; and vibration generating means for producing electromagnetic force by interaction with the second magnetic flux and thereby generating vibration, when a signal having a frequency which is less than the predetermined frequency, is applied thereto.

An electromagnetic induction type acoustic transducer apparatus including a magnetic gap formed between a plate and a pole piece serving as assemblies of a magnetic circuit, a conductive ring attached to a diaphragm, the diaphragm interposed within the magnetic gap for generating sounds when it is vibrated, and a flat coil disposed in the plate or the pole piece at the position opposing the magnetic gap and of which winding is increased from the vibration direction of the diaphragm to the direction perpendicular to the vibration direction of the diaphragm, wherein a width of the magnetic gap can be reduced.

A speaker having a diaphragm with an outer peripheral part. A voice coil is disposed within and coupled to the diaphragm, the voice coil supported by a voice coil bobbin with the voice coil having at least two lead wires. The speaker includes a generally cup-shaped frame with the diaphragm disposed inside of the frame so that an outer peripheral part of the diaphragm is coupled to the frame with a damper disposed inside of the cup-shaped frame so that adhesive on the outer part of the damper is used to adhere the damper to the frame. The speaker is completed with an electric relay terminal coupled to the lead wires of the voice coil, a terminal base coupled to the frame, at least two electric connection terminals coupled to the terminal base, one end of each electric connection terminal projecting inside of the space defined by the cup-shaped frame and coupled to the electric relay terminal at a position above a central part of the damper with the lead wires extending the shortest distance between the voice coil and the electric connection terminals projecting inside the frame so that low frequency resonance is avoided when the speaker is in use.

A dual function transducer housing (100), includes a narrow profile housing having top and bottom cavities (105, 103) and a ringer side port (106). The top and bottom cavities (105, 103) are adapted to receive a ringer diaphragm and a speaker diaphragm, respectively. The top cavity (105) is in communication with the ringer side port (106). A ringer output signal is providable through the ringer side port (106) and a speaker output is providable from the housing (100).

An integrated sound generator/vibrator has a higher frequency responsive sound producing body and a low frequency responsive vibrating body which may be operated simultaneously or separately. In one embodiment, a pole piece is anchored to the center of a spring body, and armatures are fastened to the center of a compliant diaphragm facing the pole piece. Magnets and excitation coils are fastened in a case to surround the pole piece. In another embodiment, a voice coil is fastened to the center of a compliant diaphragm, a magnet is anchored to the center of a spring body, and the diaphragm and spring body are positioned to face each other with the magnet centered in the voice coil. In a variation of the second embodiment, a magnetic unit comprising a pole piece, a ring magnet, and a yoke is attached to the spring body. The magnetic circuit in each design selectively produces a high frequency field which operates the high frequency diaphragm, and/or a low frequency field which moves the pole piece or central magnet on the spring body to cause vibrations.